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Siemens 420 S V6.0 Cordless Telephone User Manual

1. Period AP Configuration Out STA Configuration s In ward ward Description Keys 1 2 3 4 Tx Key Keys 1 2 3 4 Tx Key 0 Main life key A A 0 0 0 1 JA A B C D 1 A 1 Main life key B 0 B 0 0 2 B 2 B 2 Main life key C 0 0 C 0 34 IC 3 C 3 Main life key D 0 0 0 D 4 ID 4 D 4 Main life key E E 0 0 0 1 E E F G H 1 E 5 Main life key F 0 F 0 0 2 JF 2 F By initially configuring all stations with the keys for the first 4 periods only the Txkey index needs to be changed at all stations for the first three steps At the step from period 3 to period 4 the keys have to be changed at all STAs as well 186 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Security Maintenance 75 2 2 Single Key Transition Period To introduce a transition period between the main life of the successive keys the scheme has to be changed as shown in Table 5 Single Key Transition Period Table 5 Single Key Transition Period Period AP Configuration Out STA Configuration s ln ward ward Description Keys 1 2 3 4 Tx Key Keys 1 2 3 4 Tx Key 0 Main life key A A 0 0 0 1 JA A B C D 1 A 1 Transition A B A B 0 0 2 B 1 2 A B 2 Main life key B 0 B 0 0 2 B 2 B 3 Transition B C 0 B C 0 3 IC 2 3 BIC 4 Main life key C 0 0 C 0 3 JC 3 C 5 Transition C D 0
2. Spanning Tree Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 199 Advanced Parameters 8 2 21 Protocol Filtering 200 The filtered protocols are listed in the top section of the Bridge tab The factory set default of the Radio Link Module is lt None gt which will allow all protocols to be transmitted to the wireless medium This is the recommended setting when you do not require specific protocols to be filtered To filter specific protocols proceed as follows 1 Determine the minimum set of protocols that must be bridged 2 Click the Edit button to display the Filter Ethernet Protocols window pictured in Figure 37 Select Ethernet Protocols to be Filtered Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters Figure 37 Select Ethernet Protocols to be Filtered Edit Access Point configuration 192 168 1 71 Access Control Link Integrity Ethemet Interface Wireless Interfaces Access Point IP SNMP Bridge m Protocols to Filter Edit T Apollo Domain 8019 T HP Probe Control 8005 Apple Talk 1 and 2 8098 I IBM SNA Services 8005 IV Apple Talk ARP 1 and2 80F3 TWP 0800 pa a Banyan VINES OBAD M IP ARP 0806 Hones MM Banyan VINESEcho 0BAF I Novell ECONFIGE 8137 I Decnet Phase IV 6003 I RARP Reverse ARP 8035 I DEC Diagnostic 6005 I SNMP over Ethernet 814C I DECLAT 6004 I Xyplex 0888 I DECLAYC 60
3. connect to the first open network it sees when the station is powered up display all RLMs belonging to that network that are within range of your CP 1515 Manager station e Peer to Peer workgroup aworkgroup is created between stations with the setting Peerto Peer 5 2 3 5 Selecting another Wireless Network 1 Click the Selection tab on the Site Monitor window to display the window pictured in Figure 16 Select another Network to Monitor Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 87 Using the CP 1515 Manager Figure 16 Select another Network to Monitor Client Manager Site Monitor x Network name Your Company Network Name 5 Distance betweeen APs Large iT Selection Site Monitor Log Settings AP names Observed networks Network type No of APs Channels Your Company Network Name Infrastructure 4 1 Sales Network Infrastructure 5 2 Select an Infrastructure to be monitored log Cancel Help The list of Observed Networks on this tab will show All networks that are operational within the range of your CP 1515 Manager station e The type of network that might either be an Infrastructure network Peer to Peer workgroup The number of Access Points RLMs in the observed infrastructure network s 88 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager e Th
4. If this does not solve your problem consider one of the following options as described in this chapter e Protocol Filtering page 118 e Optimizing Wireless Connections page 125 6 2 7 Optimizing Wireless Connections When the link quality of communications between a wireless station and its Access Point RLM is poor packets communicated between this station and the Radio Link Module may get lost Waiting in vain for an acknowledgment of the receiving station the sending station will re transmit the lost packet Upon receipt of the same packet for the second time the receiving station might decide to discard all packets received so far which would require that the sending station will have to retransmit all packets once again Please note that e Many retransmissions may affect your effective data throughput efficiency as the true data has to share the wireless bandwidth with the re transmitted frames Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 125 Eliminating Redundant Traffic The retransmissions will also degrade the performance as perceived by the end user of a wireless stations e g saving a file will take longer if many retransmissions are required A poor link quality can be caused by one or more of the following problems The station is almost out of range of the Access Point RLM There is a source of interference in the signal path between the station and the Ra
5. Upload Software a Look under the Hood Further Support NMTIOMLO ZCOMLA CU eee a a tae Ade kul Bat 262 Automation and Drives Service amp SUPPOFt ccc ecceeeeeeeteeeeeeee 263 Service amp Support on the Internet cee ccccesseceeestseeeeesseeeee 266 Training for SIMANTIC NE Trescore nae e 267 Certificato Ns sea e a a a a a eat 267 Glossary 268 Index 293 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 15 1 Introduction 11 A Wireless LAN The Siemens SIMATIC NET Industrial Wireless LAN IWL product family is a compreh bout Siemens SIMATIC NET Industrial ensive set of network equipment that enables you to build any type of network configuration from a small independent wireless network to a large completely wireless infrastructure The Siemens SIMATIC NET Industria wireless The wire wired LA The wire standard Wireless LAN product family consists of an RLM to connect stations to existing Ethernet LAN infrastructures ess network interface is not much different from the interface for Ns The operating system will not even notice the difference ess network interface supports all protocols that are supported by Ethernet adapter cards Like wired network interfaces wireless network Wireless interfaces are installed with a dedicated SIMATIC NET Industrial LAN driver but unlike wired network interfaces wireless network interfaces do not need a
6. C79000 G8976 C171 01 Bridge Out Packets 110 Bridge Parameters 197 g Cc Carrier Sense Multiple Access Collision Avoidance 131 Carrier Sense see CSMA CA 146 CD ROM files on 23 Client Manager 71 Component Failure 236 Configuration back up 224 mismatch 236 upload 224 Configurations access point 24 advanced 24 multiple channel 29 ndustrial Ethernet Wireless LAN RLM Manager CP 1515 Manager 293 stand alone wireless LAN 26 Configuring Access Point scenarios 47 wired station 48 49 wireless station 50 52 Configuring access point wireless station 51 CP 1515 Manager about 19 Site Monitor 82 CSMA CA 131 146 CTS see Medium Reservation 134 aE D Default Router 210 DHCP 45 231 Distance Between APs 194 Download Config File 66 228 a E Encryption see Wired Equivalent Privacy 167 Ethernet configuration scenario 47 connecting to 27 Ethernet Interface selecting 216 N F Firmware 258 Forced Reload mode 244 245 procedure 244 250 Frequency channel separation 31 Dual PC Card Configuration 229 T H Help on line 22 294 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 r l cons used in this document 22 n Errors 110 nitiator Station 104 nterface Parameters 63 nterference Robustness 193 P Access List SNMP 215 P Address about 229 access point 50 53 edit 62 MANAGER station 45 E K Kernel 258 itl L LAN Ad
7. 1 2 Arrange the site monitor display as described above Determine which locations in your network environment require wireless connectivity Use a mobile computing device to walk through your wireless LAN environment Roaming throughout the network environment verify that each location is covered by at least one RLM that provides a level of SNR that is at least Marginal Yellow or better optional Use the Sort on button to re arrange the display of Access Points RLMs by the data displayed in the first column The first time you open the Site Monitor window the Access Points RLMs are sorted in descending order of the SNR values optional To sort Access Points RLMs in a different way simply select another display item in column one 5 2 3 3 Customizing the Site Monitor Display For specific purposes you may wish to select one or more of the other parameters as well for example Display the signal level Signal and noise level Noise to determine the cause of a poor level of SNR A low signal level would indicate a weak radio signal i e the Radio Link Module is almost out of range Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 85 Using the CP 1515 Manager Ahigh noise level would indicate a source of interference in the radio path between your CP 1515 Manager station and the Access Point RLM The SNR signal level and noise level can be display
8. e f No proceed as follows a Click the Add button b From the list of component types select Protocol and click the Add button c Select the TCP IP protocol from the list displayed Network 4 When your network does not use IP addressing enable the option Specify an IP Address This will disable the DHCP mechanism that would assign an IP address to your LAN administrator station automatically in networks that include a DHCP server e Enter a user defined value in the IP Address field of the format 153 69 254 xxx where xxx may be any numerical value in the range of 1 253 When configuring multiple LAN administrator stations make sure to assign different values to each station Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 45 Installing SIMATIC NET IWL Software f In the Subnet Mask field enter the value 255 255 255 0 g Click the OK button to confirm and follow the instructions as displayed on your screen 5 When prompted to restart your computer select Yes Once your computer has restarted you will be ready to configure the Access Point RLM via any of the configuration scenarios as described on Configuration Scenarios page 47 46 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuration Scenarios 3 6 Configuration Scenarios In the previous section you may have selected either a wired or a wireless LAN administrator stati
9. Figure 20 Remote Link Test window Remote Link Test Point to Point 21 x r Link Quality O Initiator Station Info r Remote Station Info Name Incoming Goods Department John s Workstation Address 08 00 6a 2b 5c 2b 00 60 1d 1e 1f 27 Local Levels 7 p Remote Levels seo M o ox a 27x Noise E 15 oa 14 m Local r Remote Poets M o 100 Received 267 of 267 100 267 of 267 10 0 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager 5 3 4 2 Important Indicators to Monitor The Signal to Noise Ratio SNR identifies the communication quality of the radio path between the initiator station and its remote link test partner The color of the SNR indicator the link quality indicator and the remote levels indicators relate to the following levels of communications quality Color Description e Green Communication quality is Good no intervention is required e Yellow Communication quality is Marginal no intervention is required e Red Communication quality is Poor intervention required see Troubleshooting page 236 e Blank No connection If the level of SNR is lower than expected the signal and noise level indicators may help you investigate the cause Click the Details button to show the signal and noise level indicators e A low signal level indicates that the strength of the radio signal is
10. charged only with the SIMATIC Card Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 265 Service amp Support on the Internet E 3 Service amp Support on the Internet On the World Wide Web you will find the very latest information on the entire SIMATIC product range for example answers to frequently asked questions FAQs Tips and Tricks software updates and user information In addition to this free information you can also order the following for which a charge is made e Software products e Sample application programs These are charged to the SIMATIC CARD Internet address http www siemens de automation service amp support You can also formulate a question for the SIMATIC Knowledge Manager that will find the solution in the knowledge database If you are working in an area without an online connection part of the free information area is available on the SIMATIC Customer Support Knowledge Base CD 266 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Training for SIMANTIC NET E 4 Training for SIMANTIC NET Who to Contact about Training Courses Siemens AG Trainings Center fur Automatisierungs und Antriebstechnik A amp D PT 49 Kursb ro stliche RheinbriickenstraRe 50 76181 Karlsruhe Germany Phone 49 0 721 595 2917 Fax 49 0 721 595 6087 Internet http www sitrain com E 5 Certif
11. e Peer to Peer Workgroup e Basic infrastructure 1 Stand alone configuration 2 Wireless access to Ethernet networks e Advanced infrastructures 1 Multiple channel configuration 24 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Peer to Peer Workgroup 2 2 Peer to Peer Workgroup A Peerto Peer workgroup as pictured in Figure 1 is a group of wireless devices that do not bridge their data via the Radio Link Module RLM All machines within a Peerto Peer network are configured to Peer to Peer mode The most simple independent network is one without a server where stations communicate Peer to Peer e g by sharing a disk or printer via Microsoft Networking Figure 1 Peer to Peer Workgroup Peerto Peer networks are typically used for small networks where e All wireless stations participate in workgroup computing for example using the disk sharing option of Microsoft Networking and Printers e All stations are within range of a wireless server Peerto Peer networks are a quick and easy solution to set up a wireless network at trade shows business visits or other off site locations Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 25 Basic Infrastructure 2 3 Basic Infrastructure 2 31 Stand Alone Configuration In a stand alone configuration Figure 2 the Radio Link Module RLM will function as a relay RLM that will forward the data
12. 1 2 A B 2 Main life B C 0 B C 0 3 IC 2 3 IB C 3 Main life C D 0 0 C D 4 ID 3 4 C D 4 Main life D E E 0 0 D 1 E A B C D 4 JD E F G H 1 E 5 Main life E F E F 0 0 2 JF E F G H 1 2 E F Table 6 Alternative Schemes gives a scheme where at each period two keys are in use at the end of each period the oldest key is no longer valid and needs to be replaced at all stations Advantage of this scheme versus the scheme in Table 5 Single Key Transition Period is that it requires less frequent configuration changes at all Radio Link Modules Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 189 8 8 1 Advanced Network Configurations Introduction To configure your SIMATIC NET IWL network beyond the basic configuration a number of advanced aspect will be discussed 190 Advanced Parameters page 191 Configuring Large Networks page 218 Modifying the Configuration page 226 Restoring a Back up Configuration page 228 Dual PC Card Configuration page 229 About IP Addresses and Subnets page 229 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters 8 2 Advanced Parameters You may wish to explore the Advanced Parameters options as supported by your Radio Link Modules especially when administering larger networks that encompass more than 10 RLMs Advanced parameter options include e Advanced parameter
13. CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters Figure 42 Select Ethernet Interface Edit Access Point configuration 135 85 193 90 xj SNMP Bridge themet Interface Wireless Interfaces Access Point IP Access Control Link Integrity 10 Mbit sec Half Duplex Auto Port Select 10 Mbit sec Full Duplex Twisted Pair Port 10 Mbit sec Auto Duplex 100 Mbit sec Half Duplex 100 Mbit sec Full Duplex Auto Speed Half Duplex C Auto Speed Auto Duplex Cancel Help For more information about selecting the Ethernet Interface refer to the help file of the RLM Manager program Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 217 Configuring Large Networks 8 3 Configuring Large Networks Each Radio Link Module configuration is characterized by two types of parameters e Common parameters that must be the same for ALL RLMss in your network and e Unique parameters that must be unique for each Access Point RLM in your network In larger networking organizations it may become quite cumbersome to copy the common parameters to each of the Radio Link Modules in the network in order to provide consistency throughout the entire network As the number of RLMs increases the risk of errors e g as a result of typos may increase as well Inconsistent values for common parameters or duplicate values for the unique parameters may have unpredictable ef
14. Modules page 222 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 227 Restoring a Back up Configuration 8 5 Restoring a Back up Configuration To restore previously saved back up configuration files to your Access Point RLM proceed as follows 1 Start the RLM Manager program 2 Select the Radio Link Module you want to upload the configuration file to 3 From the Access Point RLM menu select Upload Config File 4 Select the configuration file you want to upload and click Open 5 When prompted to confirm the upload verify whether the pop up message reflects the correct IP address e When the IP address value is correct click Yes to proceed The Access Point RLM will now reset automatically e If the IP address is not correct click No to return to cancel the upload procedure The new parameter settings will now be loaded into the FlashROM of the Radio Link Module This means that the parameters will remain intact whenever the RLM is reset or switched off and on again To change the parameters again simply repeat the procedure as described in this section to reconfigure your RLMs 228 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Dual PC Card Configuration 8 6 Dual PC Card Configuration The use of two PC Cards CP 1515 in one RLM can serve multiple purposes e g e Doubling the capacity of the Radio Link Module A second PC Card inserted in the secon
15. Send Figure 26 Medium Reservation Clear to Send j NOTE In most networking environments it is very unlikely that you will need to enable RTS CTS medium reservation on the Access Point RLM to prevent collisions Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 135 Eliminating Redundant Traffic 136 Since all stations connected to the Access Point RLM are typically within range of that Radio Link Module they should be able to sense whenever the RLM is using the medium to transmit messages via the wireless medium Enabling RTS CTS medium reservation on the RLM would require the Access Point RLM to ask for a CTS for every message that it wishes to forward to stations within its range even if it is forwarding traffic between stations that belong to the same wireless cell This might cause redundant network overhead that could negatively affect the throughput performance instead of providing a remedy If you insist on enabling RTS CTS medium reservation on the Access Point RLM you will notice that the configuration of this option for Access Points RLMs is slightly different from that of wireless stations The Access Points RLMs allow you to customize the sensitivity of the RTS CTS mechanism By entering a userdefined frame length value in the RTS CTS Medium Reservation Threshold field in the edit mode select Interface tab then click the Advanced button you can influ
16. When the IP address or interface does not match the listing in the SNMP IP access list the requester will receive a time out error To authorize a management station via the SNMP IP access list 1 Start the RLM Manager and select the Access Point RLM 2 Click the Edit button to connect to the Radio Link Module 3 Select the SNMP tab to display the SNMP parameters The SNMP IP Access List is visible at the bottom of the SNMP tab as pictured in Setup SNMP parameters page 212 4 Use the following buttons to modify the SNMP IP access list e Add to add IP addresses to the list Press the F1 key for on line Help for possible values for these fields e Delete to remove IP addresses from the list Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 179 Securing Access Point RLM Setup e Edit to change entries in the list The default value is lt All will be permitted gt 7 4 3 Trap Host Alerts You can use the Trap Host mechanism to inform a network administrator when somebody resets the Radio Link Module does the forced reload procedure or if there is an authentication failure or a link up or down is detected The trap host alert will enable the network administrator to verify whether the reset or forced reload action was an authorized action or not 7 4 31 Enable Trap Host Alerts 180 To activate the trap host mechanism 1 Start the RLM Manager and select the Radio Link Module 2 C
17. etwork overload Green Amber Green Amber Amber The Ethernet connection sends more traffic to wireless stations han the RLM Bridge can forward o the interface Run the RLM Manager Remote Statistics to investigate network performance f possible try to eliminate redundant traffic by e Filtering protocols e Setting storm threshold or e Shut down Ethernet stations that transmit excessive data Contin Green Flash Red Flash Red Flash Red Frames are rejected because of an unknown cause e Run the RLM Manager Remote Statistics to investigate the number of packets in error e f this number is relatively high run a remote link test to determine which station is causing the packet loss 1 When 238 raffic load exceeds the wireless throughput capacity gt 11MB s the RLM will buffer such requests In this situation however the buffer is full and packets are ignored Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction Power Ethernet Wireless Wireless Description Action interface interface A B OR Ramin a Amber Off Off Off Forced reload state Amber Amber Amber e Proceed with the forced reload procedure as described in C Forced Reload Procedure of this Manual Amber Flicker Off Off Forced reload state Green The flickering LED indicate LAN Off Flicker Off activity on t
18. his Access Point RLM using the Download Config File command from the RLM menu Use a file name that allows you to easily recognize the relationship between the file name and this Radio Link odule The entire set of common and unique parameters are now saved permanently into the non volatile FlashROM of They will remain stored in the RLM even if the or switched off and on again the Access Point RLM Radio Link Module is reset Repeat step 2 7 for every other Access Point RLM that you wish to configure 224 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Large Networks 8 3 3 4 Completing the Installation When you configured the RLMs at your desk i e the Radio Link Modules were not yet installed into their intended location label each Access Point RLM with clear instructions for your installation technicians 1 Record the intended location of the Access Point RLM on a label and attach the label to the Radio Link Module 2 Record the name of the file with the RLM s configuration data and the location where you will install the Access Point RLM on the Access Point Configuration Record 3 When finished store the back up files cnf your template file common cnf and your Access Point Configuration Record in a safe place Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 225 Modifying the Co
19. je ments to c 2 Enter a filename for your log file in the field Log Filename If you e Enter a new filename a new file is created e Enter the same filename the data will be appended e Use the default filename the data will be appended 3 Select the mode of logging e Data logging off no data is logged 94 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager e Manual data logging to manually record your link measurements Optionally you can add comments each time you log data by clicking the Add comments check box e Automatic data logging to automatically log data You must enter a time interval between measurements e Continuous data logging only available in Link Test window Automatically log data with the following interval a Once per second or b Once per minute In all modes the measurement data is saved in the file entered in the Log Filename field Each time new data is saved this information is appended to the existing file If you wish to save the data in a new file use this field to enter a new filename 5 2 4 4 Starting Stopping the Logging Function Depending on your choice of logging option the logging button will read either Log Once manual option or Start Log automatic options e For manual logging click the Log Once button each time you wish to log data Logging stops automatically after the data is recorded
20. rated Good In situations where you see a lot of re transmissions at lower data rates the lower data speed might be the result of e A link test partner that is almost out of range of your CP 1515 Manager station This is easily recognized by a low level of SNR 1 The range of wireless data is related to the data speed Radio messages transmitted at lower data speeds will travel longer distances than messages at maximum data speed In most network environments the Auto Fall back transmit rate will yield the best performance results Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 79 Using the CP 1515 Manager One of the test partners is using a wireless card that does not support the high rates To investigate link quality results in more detail you can use one of the following buttons Advice to display more detailed information related to the current link quality and troubleshooting hints to increase performance Freeze to momentarily stop the dynamic indicators and updating of numerical values for example to analyze the results on your screen in more detail Reset to reset all of the diagnostic counters back to zero You can use this option to investigate the results of an action to remedy a cause of poor performance For example after you switched off a microwave oven that you suspect is causing interference Clicking the Reset button will analyze the link quali
21. start bridging operation using the configuration parameters as they were stored in the RLM prior to the reboot For out of the box RLMs these parameters will be as identified in Table 9 Start up Configuration RLM B 2 1 Manual Reboot To reboot the RLM manually on the spot proceed as follows 1 Remove the cover of the Radio Link Module see the Manual Industrial Ethernet Wireless LAN Radio Link Module RLM on IWL CD that came with your RLM for assistance if needed 2 Locate the two small holes on the bottom of the processor module marked Reset and Reload as pictured in Figure 43 Reset Button Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 241 Rebooting RLMs Figure 43 Reset Button Reset Reload 3 Use a small pointed object such as the tip of a ball point to press the Reset button The RLM will restart and run the start up diagnostics characterized by a LED sequence where the LEDs change color in the range Red Amber Green 4 When the Power LED is green and other LEDs are off or flickering indicating LAN activity you can mount the cover of the RLM After approximately 15 seconds the unit will start bridging operation using the configuration parameters as they were stored in the Radio Link Module prior to the reboot 242 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Rebooting RLMs B 2 2 Remote Reboot To reboo
22. stations you may either use a static IP address or a dynamic IP address that is assigned by a BOOTP or DHCP server When assigning IP addresses to LAN administrator stations and RLMs make sure that e Each device has a unique IP address e All devices use the same subnet mask j NOTE The wireless networking system does not need IP addressing to connect normal wireless stations to the network The infrastructure is just the physical medium to connect a computer to an Radio Link Module like you could use wire to connect it to an Ethernet infrastructure However in environments where the network operating system uses the TCP IP protocol stations may need to have an IP address as well to use specific networking services like for example access to the internet 230 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 About IP Addresses and Subnets 8 71 BOOTP and DHCP When powered up for the very first time the Access Point RLM will broadcast a request for an IP address If your network includes a BOOTP or DHCP server this server will automatically assign an available IP address to the Access Point RLM Subject to the settings of your BOOTP or DHCP services you may need to introduce the Radio Link Module MAC address to the BOOTP or DHCP server Consult the documentation of your BOOTP DHCP software for more information An IP address that is assigned by a DHCP server wi
23. 0 C D 4 ID 3 4 C D 6 Main life key D 0 0 0 D 4 ID 4 D 7 Transition D E E 0 0 D 1 E A B C DE F G H 4 D 1 8 Main life key E E 0 0 0 E E F G H 1 E 9 Transition E F E F 0 0 2 JF 1 2 E F Notice that in the transition periods 1 3 and 5 the end users can switch over from one Txkey index to the next At the end of this period all stations must be over to the new key index Transition period 7 includes the transition to a new set of keys as well The total length of time a key is used consists here of the main life time period and two transition periods Assuming the main Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 187 Advanced Security Maintenance life is much bigger than the transition this can still be considered to be a single key scheme because most of the time only a single key is in use 75 2 3 Alternative Schemes Alternative schemes can be envisaged which have main life periods in which two or more keys are active An example is given in Table 6 Alternative Schemes 188 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Security Maintenance Table 6 Alternative Schemes Period AP Configuration Out STA In ward ward Configuration s Description Keys 1 2 3 4 Tx Key Keys 1 2 3 4 Tx Key O Main life key A A 0 0 0 1 JA A B C D 1 A 1 Main life A B A B 0 0 2 B
24. 01 175 Wireless Data Encryption 73 1 7 Good Practice Administering Encryption Keys Like with other properties your WEP lock is as safe as locking the door to your house i e if you don t stick to secure policies on who will be allowed to use the key or will know where to find it even the strongest lock can be opened by an intruder That s why for example you wouldn t hide the key to your house underneath the doormat Similar good practice should be applied to the keys you will use to encrypt wireless communications To minimize the risk that intruders might be able to retrieve the WEP key values you are advised to e Lock away any paper registration sheet that you use to define remember the defined WEP key values e Change the WEP encryption key values at regular intervals on both stations and Radio Link Modules The option to enter up to 4 different keys to decrypt data received via the wireless interface enables you to define a WEP key roll over scheme For example you could choose to select another transmit key every x weeks until you reach the fourth key At that point in time you could enter 3 new WEP key values for the first three WEP key entries prior to the expiration period of the fourth key value Once all stations and Radio Link Modules have been set to use the first new key again you can replace the fourth key value with a new WEP key value 176 Industrial Ethernet Wireless LAN RLM Manager CP 1515
25. 1515 Manager window will display the key information required to validate the current network connection of your SIMATIC NET IWL station e The name of the network to which your station is connected Peer to Peer in case of a Peer to Peer workgroup or the network name of your RLM infrastructure e g Your company network name e The quality of the radio connection to this network e Excellent e Good e Marginal e Poor or e Out of range Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager The quality of the radio connection is also displayed with a colored icon ail The color indicates the quality of the connection e Green Excellent or good connection e Yellow Marginal connection e Red Poor connection e Red with error sign No connection e The name of the Radio Link Module to which the mobile wireless computer is connected at that moment e The channel used for the connection e Encryption on off If your CP 1515 Manager could not establish a network connection this screen will display either e No wireless network card driver present your station was unable to detect the SIMATIC NET IWL driver Check to make sure that the PC card CP 1515 is properly connected and that you have configured your station correctly e Out of range you are out of range of the network for which your station has been configured e Searching
26. CP 1515 Manager C79000 G8976 C171 01 Installing SIMATIC NET IWL Software NOTE Previously installed versions of the RLM Manager program will automatically be replaced without affecting any other file that you might have saved into the program s directory For example if you saved back ups of Access Point RLM configuration files which you created with the previous version in the RLM Manager program folders these files will not be deleted or overwritten During the installation you will be prompted for a directory to install the program files The default directory for the RLM Manager program is C Programs ORiINOCO AP Manager Throughout this manual we make references to a variety of files Unless otherwise specified you will find these files in this default directory 3 5 3 1 Verifying the TCP IP Protocol Settings The RLM Manager program requires a TCP IP networking protocol to communicate with the Access Point RLM When setting up the Access Points RLMs for the first time you will need to verify the TCP IP settings of the LAN administrator station and Access Point RLM You need an IP address for your CP1515 in the LAN admistrator station and an IP address for the Access Point RLM There are two ways to get the wright IP address the CP1515 or RLM IP address is configured as Obtain an IP address automatically via DHCP Your LAN admistrator has to configure the DHCP server with the MAC address of the CP1515 an
27. Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Wireless Data Encryption Figure 35 Enabling WEP Encryption Edit Access Point configuration 192 168 1 71 Access Control Link Integrity Ethernet Interface Wireless Interfaces Access PointIP SNMP Bridge PC card slot A Network Name voun COMPANY NETWORK HERE Wireless Security Setup Ea IV Closed Wireless System PC card slot B Encryption Key There is no PC card ir 1 MV Deny non encrypted Data Encrypt Data Transmissions Using Key 1 ed Cancel Help Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 169 Wireless Data Encryption Wired Equivalent Privacy WEP data encryption enables you to encrypt all data that will be transmitted via the wireless LAN medium To use WEP within your network all access points and wireless stations must be equipped with CP 1515 cards that have been configured to use identical encryption keys To enable encryption 1 Start the RLM Manager and select the RLM 2 Click the Edit button 3 Select the Wireless Interfaces tab 4 Click the Security button to view the Wireless Security Setup window see Figure 35 Enabling WEP Encryption 5 Select the option Enable Encryption to enable encryption and e Enter up to 4 different keys to decrypt data received via the wireless interface e Select one of these keys to encrypt wireless data that is to
28. G8976 C171 01 65 Configuring Infrastructure Networks 4 2 1 5 Step 4 Create a Back up of the Configuration 66 At all times when you change the configuration of the Access Point RLM we recommend that you create a back up file of the configuration You can use this back up to quickly restore the Radio Link Module configuration in situations where Your Access Point RLM goes out of service You would like to recreate the original configuration of the RLM that you had to replace for example following a repair When you need to perform a forced reload as described in Forced Reload Procedure page 244 To create a back up file proceed as follows 1 2 3 4 Start the RLM Manager program Select the RLM you want to create a backup of From the Radio Link Module menu select Download Config File When prompted for a name enter a name that allows you to easily recognize the relationship between the file name and the Radio Link Module Record the filename and the location where the RLM will be installed on the Access Point RLM Configuration Record in table Access Point Configuration Record page 235 To install and configure other Access Points RLMs refer back to Step 1 Installing the Access Point RLM page 60 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 5 Monitoring your SIMATIC NET IWL Network 5 1 Introduction Once your network has been configured and instal
29. Maal a ident a etnies 164 7 2 8 Enabling RADIUS Server Access Control cccccccceeeeseeeeeeeeeeeneeeenees 165 7 3 Wireless DataEnGny puns hrei ett ladohs tori had be tee Soles 67 7 34 Enabling WEP Encryption e ee rann eenei eai erriei Ianin tE errei H 168 7 4 Securing Access Point RLM Setup ccccecceceeeetereeeeeeetereesereeeees 77 7 4 1 Read and Read Write passwords ie 177 7 4 2 SNMP IP Access List 178 TAS Trap HOSEAISr tS ici Asc na a at Medinet aa a ia 180 7 5 Advanced Security Maintenance 83 7 5 1 Maintaining Access Control Tables 183 7 5 2 Maintaining WEP Encryption Keys 183 8 Advanced Network Configurations 8 1 NTOGUCTION ezes ade Ase a othe dhe te a dB 190 8 2 Advanced Parametrs aeei beer head AE atni 191 8 2 1 Advanced Parameters 192 8 2 2 Bridge Parameters 197 8 2 3 Access point IP Parameters 207 8 2 4 SNMP Parameters zs 211 8 2 5 Ethernet Interfaces i ee ee 216 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 13 8 3 8 3 1 8 3 2 8 3 3 8 4 8 4 1 8 5 8 6 8 7 8 7 1 A A 1 A 2 Configuring Large Networks 0 0 0 ccccccceecececssteeeeeeseeeeenstseeeeesssateeees 218 Common Parameters Aeaee eenia ht ig te Wed oles eA ested acter deta 219 UI MiQUesParameters nn eh se okt eh Be Win E Sete yevedieandeass Bene 220 Managing Configuration Consistency cccccecceceeeeeeeeeceeeeeeeet
30. Manager C79000 G8976 C171 01 Managing Infrastructure Networks 3 4 1 2 Wireless Stations A wireless mobile LAN administrator station allows you to use the CP 1515 Manager as well as the RLM Manager The Mobic uses only its CP 1515 Manager 3 41 21 Monitoring You can use the following tools to monitor your infrastructure network e CP 1515 Manager PC card CP 1515 diagnostics Logging measurements data Site monitor Link test e RLM Manager System information Remote link test Remote statistics For more information on monitoring your network refer to chapter 5 Monitoring your SIMATIC NET IWL Network page 67 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 39 Installing SIMATIC NET IWL Software 3 5 3 51 CP 1515 Manager 40 The CP 1515 Manager is a diagnostics tool that runs on wirel Installing SIMATIC NET IWL Software ess Stations only To setup the LAN administrator station that is capable of running the CP 1515 Manager program the station must be equipped w CP 1515 To install the CP 1515 Manager software proceed as follows 1 Insert the SIMATIC Wireless LAN software CD ROM tha ith the PC card came with your PC card CP 1515 into the station that you have designated as the LAN administrator station If you downloaded the software from the web please re installation instructions found on the web er to the 2 W
31. The ratio of network overhead in relation to True Data differs from one networking service to another However when the ratio of network overhead is more than actually required this may affect the performance of your wireless LAN because your True Data has to share the bandwidth capacity with the network overhead Eliminating redundant traffic can significantly improve the performance of your network Using the RLM Manager you can choose from one or more of the following options e Protocol Filtering page 118 to filter protocols that are not relevant to wireless stations Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 117 Eliminating Redundant Traffic e Optimizing Wired Connections page 121 to eliminate redundant error messages due to failing connections e Optimizing Wireless Connections page 125 to avoid retransmission of lost or collided frames 6 21 Protocol Filtering Some network protocols send large volumes of broadcasts to all stations In many cases these protocols may not be required by your wireless stations In these cases protocol filtering may prevent the transmission of unnecessary data saving more bandwidth for the communication of true data in your network 6 2 2 Do You Need Protocol Filtering 118 To diagnose whether or not the protocol broadcasts degrade the performance of a wireless network you can use the Remote Statistics tab as described
32. cable to connect them to the network Only wireless network interfaces allow you to relocate workstations without the need to change network cabling or connections to patch panels or hubs Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 1 2 About Siemens SIMATIC NET Industrial Wireless LAN Tools About Siemens SIMATIC NET Industrial Wireless LAN Tools The Siemens SIMATIC NET Industrial Wireless LAN software suite consists of a set of management tools that enables you to e Display and modify the configuration of remote network components e Configure network components such as Radio Link Modules e Diagnose the network performance and if necessary identify and solve network errors e Manage and optimize network performance The Siemens SIMATIC NET Industrial Wireless LAN software suite consists of the following tools e CP 1515 Manager e RLM Manager The S iemens SIMATIC NET Industrial Wireless LAN tools can be installed on stations that run the Microsoft Windows 98 ME NT v4 0 or 2000 operating systems NOTE The Siemens SIMATIC NET Industrial Wireless LAN products have been designed for interoperability with all other wireless LAN products that use the direct sequence radio technology as identified in the IEEE 802 11 standard for wireless LANs Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 17 About Siemens SIMAT
33. fairly low i e the Access Point RLM selected link test partner has moved out of range e A high noise level indicates a source of radio interference in the radio path between the RLM and its link test partners Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 107 Using the RLM Manager Comparing the values for the Access Point RLM and its link test partner will help you to identify the location where the interference occurs and investigate whether any actions to eliminate or remedy the source interference resulted in a better performance For more information about the Remote Link Test window please consult the RLM Manager on line help documentation by clicking the Help button or pressing the function key on your keyboard 5 3 5 Remote Statistics Tab The remote statistics option allows you to monitor a set of SNMP variables for each of the RLM interfaces both Ethernet and wireless 108 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager Figure 21 Remote Statistics information Monitor Access Point 153 69 254 253 Unicast packets in Unicast packets out Non Unicast packets in Bridge in packets Bridge in discards Bridge out packets In alignment errors In FCS errors Out errors Out carrier sense errors Out collisions Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 109 Using th
34. in encrypted format using the selected transmit key value Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Wireless Data Encryption e lf the addressed station does not use WEP encryption the Access Point RLM will send the message in non encrypted format e fthe data message is a multicast or broadcast message typically addressed to all stations the Radio Link Module will send the message in non encrypted format This behavior of the Radio Link Module is not related to the way the wireless message was received at the RLM If for example a wireless station that uses WEP encryption wishes to send data to another station in the same wireless cell the data transmission will e Go encrypted from the WEP station to the RLM e Go un encrypted from the Radio Link Module to its final destination if the addressed station does not support WEP encryption or does not have the WEP option enabled CAUTION For most network environments that require a higher level of security than the standard security mechanisms supported by SIMATIC NET Industrial Wireless LAN and most of today s network operating systems e g user names and passwords Siemens advises against using this option unless you want to provide easy access for any client station and or migration is more critical to your data network than top level security Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171
35. in forced reload mode Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload C 2 2 Step 2 Set to Forced Reload Mode 1 Remove the cover of the RLM 2 Locate the two small holes on the long edge side of the processor module marked Reset and Reload see Figure 44 Figure 44 Reset and Reload Buttons Reset Reload 3 Use a small pointed object such as the tip of a ball point to press the Reset button 4 Release the Reset button and wait 5 seconds The Radio Link Module will do start up diagnostics characterized by LED activity where the LEDs will change color in the range Amber Red and Green Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 249 Doing a Forced Reload 5 After approximately 5 seconds use the small pointed object again to press the Reload button for approximately 30 seconds You will see the LEDs changing color in the range Amber Red and Green again 6 When all LEDs turn Amber release the Reload button The Power LED turns to Amber Other LEDs will be off or may flicker Green to indicate LAN activity on the associated interface 7 Start the RLM Manager program and proceed with Step 3 Configuring and Uploading Files C 2 3 Step 3 Configuring and Uploading Files The complete configuration and upload procedure of the forced reload procedure is pictured in Figure 45 250 Industri
36. network infrastructure Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 283 The stations must be configured to operate in Peerto Peer mode Port Priority R An advanced Bridge Setup parameter for Access Point RLM that enables you to influence which port should be included in the Spanning Tree when concurrent bridge ports of a single bridge unit are connected in a loop A lower value makes a port more likely to become selected in the Spanning Tree than the concurrent one that has a higher numerical value Valid values 0 255 Initial value 128 Read Password 284 A security option that enables you to create a network management level by means of a password For example the Read Password in combination with the correct IP address will authorize a local LAN administrator to display only the RLM Manager Monitor function for a specific access point but not to view or modify the access point configuration You can set the Read Password using the SNMP tab in the RLM Manager program Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Read Write Password A security option that enables you to create a network management level by means of a password For example the Read Write password in combination with the correct IP address will authorize a Corporate LAN Administrator to display all RLM Manager Monitor functions and to display or e
37. network using RTS CTS medium reservation a typical setting for the medium reservation threshold is 500 e Alternatively enter a value of your choice The value you enter here will determine when the Access Point RLM will issue a Request to Send RTS For example if the value you select is 500 e The RLM will send the RTS CTS protocol for each message that exceeds the length of 500 e Messages with a length that is shorter than 500 will be transmitted according to the standard CSMA CA protocol Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 137 Eliminating Redundant Traffic 7 Click OK to return to the Interface tab Click OK again to save the new configuration to the Access Point RLM and to return to the main RLM Manager window 9 Next create a backup file of the new configuration see Step 4 Create a Back up of the Conf iguration page 66 6 2 8 8 Frequency Channel Management When your network consists of more than one Access Point RLM we recommend that you alternate sub channel frequencies between adjacent Access Points RLMs to each cell provide more bandwidth to the wireless stations in The number of available channels is subject to local radio regulations that apply in your country A found in the manual In list of supported channels for your country can be dustrial Ethernet Wireless LAN Basics and via the MOBIC web site http www siemens c
38. of your choice and a station connected to the selected RLM The RLM Manager tool can run on both wired stations Ethernet and wireless stations To run diagnostic measurements the LAN administrator station must be connected to the network infrastructure that allows the station to access the Access Point RLM using the TCP IP protocol 51 2 Which Tool Should You Use The decision whether to use the CP 1515 Manager or RLM Manager largely depends on your capabilities or desire to do diagnostic measurements on site or from a central location 68 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction Both the CP 1515 Manager and the RLM Manager offer logging functions that can save measurement data for later evaluation or comparison with previous measurements You can view saved log files with any ASCII editor or import the data into standard spreadsheet or database applications NOTE Alternatively you may use the RLM Manager program to monitor wireless performance of both wireless systems via Radio Link Modules see Remote Link Test Window page 103 The SIMATIC NET IWL products have been designed to be interchangeable with all other wireless LAN products that use the direct sequence radio technology as identified in the IEEE 802 11 standard for wireless LANs Operating in the unlicensed 2 4 GHz band the SIMATIC NET IWL system can transmit through walls and floors giving
39. should serve as a Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 21 About This Manual general guideline to help you to decide which tool can help you to accomplish a specific task For more information about specific software screens or options you are advised to consult the on line help documentation 1 41 About Icons used in this Document Throughout this document we use the following icons to represent the various networking devices Icon Description N Wireless computer Equipped with A e PC Card CP 1515 Access Point Radio Link Module RLM Equipped with e one or two PC Card CP 1515 1 4 2 On line Help Documentation Information about specific software screens or options in your RLM Manager or CP 1515 Manager program is covered in the on line help of the programs 22 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 About This Manual e To access context sensitive help on a specific screen for the SIMATIC NET Industrial Wireless LAN programs click the Help button or press the F1 function key e In the on line help you can click the Contents tab to get an overview of the on line information or click the Index tab to open an alphabetical list of specific topics Product specifications are listed in the Manual that came with your SIMATIC NET Industrial Wireless LAN products 1 4 3 Additional Files on your CD ROM The CD RO
40. stations in one cell to defer data transmission for stations located in the neighboring cell You should only select Small distance between Radio Link Modules when you are designing a wireless infrastructure that will include a high concentration of Access Point RLMs i e the total cost of hardware investments is less critical than the maximum data throughput per cell Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 195 Advanced Parameters NOTE The settings Medium or Small distance between Access Point RLMs require a excellent quality of radio communications throughout the entire wireless coverage area In environments where the actual placement of Radio Link Modules was designed to obtain maximum wireless coverage with a minimum number of Access Point RLMs changing the distance between RLMs from Large to Medium or Small will not yield better results Adversely doing so might seriously affect the roaming performance of your wireless stations risking network communication errors caused by out of range situations If you consider using the option Medium or Small distance between Radio Link Modules to create a high performance network you are advised to read the section Frequency Channel Management page 138 as well For more information about Access Point RLM density please consult Optimizing Performance page 116 8 21 5 Multicast Rate The Multicast Rate identifies the pr
41. the location of this SIMATIC NET IWL device Firmware Basic operating software for SIMATIC NET IWL PC Card and Radio Link Module that is factory installed Occasionally firmware upgrades may become available when new functions or features are developed for your SIMATIC NET IWL product Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 275 Firmware Upgrade Upgrade for the embedded software on the hardware of your SIMATIC NET IWL product m For SIMATIC NET IWL PC Card firmware upgrades are distributed as an executable file of the format wsuVVxxx exe where xxx identifies the version of the upgrade This executable file is run once on the computer containing the PC Card m For Access Point RLM firmware upgrades are distributed as a binary file of the format wpntxxx bin where xxx identifies the version of the firmware To upgrade the firmware of the Radio Link Module use the Upload Software option of the acess point menu of your RLM Manager program Forward Delay 276 A timer for the Spanning Tree Algorithm that prevents a bridge to forward data packets when E The bridge receives information that the active Spanning Tree topology must be updated for example when a bridge breaks down or when somebody modified the Bridge Priority or Path Cost value of a particular bridge m the bridge registers that the protocol information exceeds the speci
42. to the Radio Link Module j NOTE When importing a configuration file make sure you import the correct back up file Configuring the Radio Link Module with a configuration file that is identical to the configuration of another Radio Link Module may lead to unpredictable behavior of your network e f you do have a back up configuration file and if you do wish to use this file to configure the Radio Link Module click Yes Select the back up configuration file cnf and click Open to open the back up configuration settings You are advised to check the configuration settings Click Ok to continue e f you do not have a back up configuration file or if you do have a file but do not want to use this file to configure the RLM click No 254 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload You are now advised to manually modify verify the configuration settings of the Access Point RLM i e assign a unique IP address setup the parameters and if applicable the other Access Point RLM identifiers such as the IP Address and SNMP passwords 7 The Edit Configuration window is displayed Note that the Edit Configuration window does not contain an OK button but an Upload button to upload the configuration settings to the RLM This means that you are editing a local configuration file and that you are not yet connected to the RLM 8 View and modify the configurat
43. up File C 2 1 Step 1 Preparations A forced reload procedure can only be done when you have physical access to the RLM 246 Familiarize yourself with the location of the RLM Do you need special equipment to access the Access Point RLM such as a ladder or keys to get into the room where the Radio Link Module is located Do you have a back up copy of the RLMs current configuration file cnf If Yes you can use the back up copy to restore the original configuration If No you will need to set all the user defined parameters for the RLM that apply in your network again Back up copies may have been created upon initial installation using the Download Config File option of the RLM Manager program Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload If you have access to the Siemens http Awww siemens com mobic web site you can download the latest software bin available for your Radio Link Module It is advised to specify a temporary IP address for the Access Point RLM To enter this temporary IP address Open the RLM Manager program Select from the Tools menu the option Options Enter the temporary IP address in the Local IP address field The temporary IP address is assigned to the Radio Link Module in forced reload mode This is done to enable configuring and uploading the software file before the Radio Link Module has its definite I
44. 07 T 3Com 3 Open Span I DECMOP Dump Load 6001 I DECMOPRemCons 6002 I 802 3 NetBUI I DEC NetBlOS 8040 T 802 3 All Others Custom coed Hoe 3 Place a check mark in the check box of each protocol that does not need to be transmitted to the wireless medium To stop filtering a specific protocol clear the check box Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 201 Advanced Parameters 4 Optional To add a non listed protocol to the list click the Custom button to enter the protocol manually 5 When finished click OK to return to the Bridge tab as pictured in Figure 36 All of the protocols that you have selected and or all of the custom protocols that you have added manually will be listed in the Protocols to Filter field 6 You can now select one of the other Bridge parameter options change other parameters or click OK to save your changes and return to the main RLM Manager window 8 2 2 2 Static MAC Address Filter To filter out traffic exchanged between stations that is not required to be sent or received via the wireless interface you can set the Static MAC address Filter in the bottom section of the Bridge tab The default value lt None gt will be acceptable for most networking environments see Figure 36 Bridge Tab in the Edit Mode You can use the MAC filtering option for example to filter broadcast or multicast messages exchanged between wired servers that can rece
45. 1515 Manager C79000 G8976 C171 01 1 Configuring Infrastructure Networks Figure 10 Basic Access Network To connect a wireless station to the SIMATIC NET Industrial Wireless LAN network each station must be configured with the same Network Name as the Radio Link Module To configure the wireless stations follow the instructions as described in the documentation that comes with your PC card CP 1515 To install and configure the RLM perform the following steps 1 Install the Radio Link Module hardware 2 Connect to the RLM with the RLM Manager program 3 Set the Network Name and save configuration to the Radio Link Module Subject to the decisions you made in Setting Up your LAN Administrator Station page 32 you may either install the Access Points RLMs at your desk and configure them one by one or have the Access Points RLMs mounted directly in their various locations prior to configuring them via a network connection Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 59 Configuring Infrastructure Networks 4 Create a back up file of the new configuration settings optional but recommended Repeat steps 2 to 4 for each of the Access Points RLMs that you wish to install 4 21 2 Step 1 Installing the Access Point RLM For installation instructions of the RLM hardware please refer to the documentation that was includeded with the RLM 4 2 1 3 Step 2 Connecting to the Ac
46. 19 Utilities 67 Traffic payload 117 traffic load 117 298 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 aes Ww WEP 167 see Wired Equivalent Privacy 167 WEP Encryption 168 Wired Equivalent Privacy 167 Wireless Interface Parameters 63 Wireless Network setting parameters 63 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 299
47. 191 may help you with tailoring the Radio Link Module configuration to meet your networking requirements e Configuring Large Networks page 218 provides a procedure to manage RLM devices more efficiently Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction 41 21 What you Need To manage your Access Points RLMs you must assign a unique IP address to each RLM within your network Furthermore your management station must also have an IP address The TCP IP connection of your station should either e Be connected to the same subnet as the Access Points RLMs as described in Basic Infrastructure page 26 or e Provide access to the subnet of the Access Points RLMss via routers gateways or another type of LAN connection that supports the TCP IP protocol Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 57 Configuring Infrastructure Networks 4 2 Configuring Infrastructure Networks 4 21 Basic Configuration 4 211 Introduction This section will describe a 4 step installation approach to configure your Access Points RLMs to service a roaming network environment for mobile wireless stations Looking at the example pictured in Figure 10 Basic Access Network each wireless cell is serviced by one RLM that has been set to RLM Services All Access Points RLMs share the same Network Name 58 Industrial Ethernet Wireless LAN RLM Manager CP
48. 3 1 1 Manually assign an IP address In case of manually assigni Address to enter a value organization ng an IP address use the field Access Point IP rom the range of IP addresses assigned to your The IP address is primarily used to address this Access Point RLM when you use the RLM Manager program to configure and or monitor this device When your organization does not use IP addressing you can enter a user defined value For example a value of the same pattern as the factory set IP address 153 69 254 254 where you replace the last three digits with a numerical value in the range of 1 to 253 8 2 3 1 2 Automatically assign an IP address In case when a DHCP server is available on the network an IP address will be automatically assigned to the Radio Link Module by the DHCP server To enable automatically obtaining an IP address form the DHCP server select Industrial Ethernet Wireless LAN R C79000 G8976 C171 01 LM Manager CP 1515 Manager 209 Advanced Parameters the field Obtain an IP address from DHCP server on the Access Point IP tab For more information about DHCP refer to BOOTP and DHCP page 231 8 2 3 2 Subnet Mask The field Access Point Subnet Mask is a common parameter and must be the same for ALL network devices within your IP subnet You can use either the default value 255 255 0 0 or change the subnet mask to a value that applies in your network If Obtain an IP address from DH
49. 515 are containing information on other SIMATIC NET products that you can operate in conjunction with RLM Manager and CP 1515 Manager in an Industrial Ethernet network All manuals are provided on the CD ROM SIMATIC Net Wireless LAN Systemsoftware and Manuals that was included with your product Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Guide to the Manual To help you to find specific information quickly these manual includes the following parts e At the front of the operating instructions you will find a complete table of contents e At the back of the operating instructions you will find an index with which you can find topics quickly e In the Manual Industrial Ethernet Wireless LAN Basics you will find a Glossary in which the most important specialist terms used in the instructions are defined Audience These Operating Instructions are intended for persons involved in configuring commissioning and troubleshooting networks including the RLM CP 1515 RLM Manager and CP 1515 Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Personal Qualification Requirements Only qualified personnel should be allowed to install and work on this equipment Qualified personnel as referred to in the operating instructions or in the warning notes are defined as persons who are familiar with the installation assembly st
50. 9000 G8976 C171 01 37 Managing Infrastructure Networks 3 4111 Configuration A wired LAN administrator station has access to all Access Points RLMs via a wired backbone The Access Points RLMs are identified by means of their unique IP address When your LAN architecture is comprised of multiple subnets separated by gateways or routers please note that the LAN administrator station which you intend to use for the initial configuration must be on the same subnet as the Access Points RLMs Once the Access Points RLMs have been configured and their IP addresses have been registered you can use any station to access the Access Points RLMs via the TCP IP protocol For more information on configuring your Access Point RLM please refer to Configuration Scenarios page 47 3 4 1 1 2 Monitoring 38 When you use a wired LAN administrator station you will not be able to move around to different physical locations of the network to determine or optimize the placement of stations or Access Points RLMs However a wired LAN administrator station can use the RLM Manager remote link test and remote statistics features to do monitoring tasks With the RLM Manager you can validate radio frequency links between a remote Radio Link Module RLM and wireless stations connected to that Radio Link Module RLM For more information on monitoring refer to Monitoring Options page 98 Industrial Ethernet Wireless LAN RLM Manager CP 1515
51. AN RLM Manager CP 1515 Manager C79000 G8976 C171 01 279 Max Age An advanced Bridge setup parameter for Radio Link Module that identifies the maximum age of received Spanning Tree protocol information When the bridge receives protocol information that exceeds the Max Age value the bridge will discard the information and start the Forward Delay timer to allow other bridges to forward updated topology information e g that another bridge has become the Root Bridge Recommended value 20 seconds Multicast Messages transmitted by a single station typically a server to multiple stations on the network This type of traffic is also referred to as Non Unicast messages Multicast Mechanism 280 In network environments that include several RLMs the Multicast Mechanism avoids frame collisions when several access points try to access the wireless medium at the same time for example in case of messages that are transmitted from one station to multiple stations Multicast or all stations Broadcast on the network The default Multicast Mechanism generates a random delay for each wireless interface of a Radio Link Module The random delay is based Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 on the last digits of the MAC address of the inserted SIMATIC NET IWL PC Card Optionally you can define a Userdefined Multicast delay in the range of 1 10 See also RLM Manager Edit paramet
52. Advanced Security Maintenance transmission The key values are shown by capital letters to indicate a real key or by zero to indicate a non configured index The column Keys 1 2 3 4 shows an equal sign when the value does not change from the previous period This is particularly relevant when it concerns the stations keys since it is envisaged that knowledge of the key values is typically not transferred to the end users so they have to return their station equipment to an IT department to get the key values changed It is envisaged that changing the Txkey Index is an action that can be done by end users since it does not reveal secret information Three key roll over strategies are distinguished e Single Key No Transition page 185 e Single Key Transition Period page 187 and e Alternative Schemes page 188 7 5 21 Single Key No Transition Table 4 Single Key No Transition shows a system where at each point in time only one single key is used The key to be used is dictated by the AP settings showing only one valid key at each period This requires a change over of keys at all stations more or less synchronous with the Radio Link Module configuration changes This is not practical and hence there are four keys Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 185 Advanced Security Maintenance Table 4 Single Key No Transition
53. Assigning an LAN Administrator Station 3 2 Assigning an LAN Administrator Station 3 21 Minimum Requirements 34 To set up the LAN administrator station you can use any desktop or portable computer that meets the following requirements A Pentium II 266 Mhz or faster processor Free disk space of 4 MB 64 MB RAM 128 MB or more recommended Microsoft Windows 98 ME 2000 or NT 4 0 CD ROM drive For the CP 1515 Manager you will also need The PC cards CP 1515 For the RLM Manager you will need the following requirements Access to the LAN via 1 PC card CP 1515 2 Ethernet card SIMATIC NET Industrial Wireless LAN Access Point RLM A installed TCP IP protocol that provides a Windows sockets winsock interface The TCP IP drivers can be found on the Microsoft Windows installation disks or CD ROM CD ROM drive Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Managing Peer to Peer Workgroups NOTE For managing your wireless network you are adviced to set the IP addresses of the RLM and mobile CP 1515 as described in About IP Addresses and Subnets page 229 3 3 Managing Peer to Peer Workgroups A Peerto Peer workgroup consists of several stations communicating directly to each other without bridging data via the Access Point RLM Peer to Peer workgroups do not need the Siemens SIMATIC NET Industrial Wireless LAN tools For more information refer to the I
54. CP server is enabled the subnet is also automatically entered 8 2 3 3 Default Router The field Default Router IP is an optional field that is relevant when you intend to use the Radio Link Module support for TRAP messages see also SNMP Parameters page 211 You can use the Default Router IP field to identify the IP address of the router which the RLM will use to find the Trap Host IP Address identified in the SNMP Parameters The default router and the trap host IP address described later in this chapter are only used for TRAP messages generated by the Access Point RLM upon a reset modification of the configuration or forced reload procedure If the value of the field Default Router IP is set to 0 0 0 0 default then no TRAP messages are initiated by this Radio Link Module 210 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters The Default Router is also relevant if you want to manage or just ping the Access Point RLM from an other subnet 8 2 3 4 Time To Live TTL The field Default TTL Time To Live identifies the maximum number of hops for an IP message generated by the Access Point RLM typically used for the trap host messages The value will be decreased each time the message passes a router When the TTL value becomes 0 the message will be rejected by the next router it meets By default the value is 64 8 2 4 SNMP Parameters Most SNMP parameter
55. IC NET Industrial Wireless LAN Tools Your SIMATIC NET Industrial Wireless LAN hard ware will communicate with other vendors IEEE 802 11 compliant wireless LAN products However you may not always be able to use the SIMATIC NET Industrial Wireless LAN software suite in combi vendors products due to the following reasons nation with other e The IEEE 802 11 standard for wireless LANs does not identify standards for diagnostic or management tools i e each vendor may have designed a customized tool to configure and or manage the IEEE 802 11 wireless network e The Siemens SIMATIC NET Industrial Wireless LAN software suite has been designed to offer an enhanc ed set of tools to monitor and analyze a wide range of diagnostic tallies Some of these tools require additional functions in the hardware that by default is supported by a Siemens SIMATIC NET Industrial Wireless LAN products but may not be supported by the other vendors products If other vendors products do not allow you to di splay communications quality or configuration parameters using the SIMATIC NET Industrial Wireless LAN software suite please refer to the documentation that was shipped with the o product 18 Industrial Ethernet Wireless LAN RLM Man her vendors ager CP 1515 Manager C79000 G8976 C171 01 About Siemens SIMATIC NET Industrial Wireless LAN Tools 1 21 CP 1515 Manager The CP 1515 Manager is a
56. M that is shipped with your SIMATIC NET Industrial Wireless LAN products include a file called readme rtf This file contains information about the version of the software and or drivers on the CD ROM You are advised to read this file prior to installing your SIMATIC NET Industrial Wireless LAN products as it may contain additional information that was not available when this document was produced You can also download or view the readme rtf file on the Siemens http Awww siemens com mobic web site 1 4 4 Other Sources of Information For information on updates and other Siemens news see the http www siemens com mobic For technical support please consult Further Support page 262 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 23 2 Wireless Configurations 21 Introduction This document describes a number of network scenarios that may serve as an example for building your wireless system Wireless systems typically apply to indoor network environments that require connectivity for devices roaming throughout the network environment Wireless systems are wireless networks that service wireless mobile devices Wireless devices may roam freely throughout the network with the only restrictions being the size and distance of the wireless LAN Subject to the size and requirements of your LAN a wireless system can be identified by either one of the following type of configurations
57. MATIC NET Industrial Wireless LAN currently does not support that feature of the standard WEP function When planning the usage of different keys over time a number of aspects have to be considered e the length of time one key stays in use this is a direct trade off between security level the chance of someone finding out what the key value is and operational overhead the efforts to reconfigure Access Point RLM and SIMATIC NET IWL stations e the requirements for smooth transition from one key to another e the minimization of end user exposure to key values The key roll over possibilities built in the 802 11 standard and offered by SIMATIC NET Industrial Wireless LAN allow for a number of scenarios each with different values for the above aspects The sequence of key configuration settings at Radio Link Module shown as AP Access Point and SIMATIC NET IWL Station shown as STA over time is shown in a number of tables below Each table reflects a certain key roll over strategy Notice that the column Outward Key shows which key is used to encrypt traffic from AP to STA and the column Inward Key s indicates the key s that are allowed and possibly used to encrypt traffic from STA to AP The WEP Keys that are configured are shown in order of index number 1 2 3 4 the column Tx is the index number configured for 184 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01
58. Manager C79000 G8976 C171 01 Securing Access Point RLM Setup 74 Securing Access Point RLM Setup Security measures such as access control become ineffective when unauthorized persons can view and modify the configuration of your Radio Link Modules To protect your network configuration from undesired modifications you are advised to implement the following measures e Read and read write passwords e SNMP IP address access list e Trap host alert mechanisms optional 741 Read and Read Write passwords To restrict access to the Access Point RLM configuration information you can create two authority levels for passwords e Read password e Read write password 741 1 Read password A read password will only provide access to the Radio Link Module to monitor diagnostic information found under Monitor button in the main RLM Manager window You can define a read password in the field Read Password on the SNMP tab Select Access Point RLM from list click Edit and select SNMP tab The default value is public Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 177 Securing Access Point RLM Setup 741 2 Read Write password A read write password will provide you with full access to display Radio Link Module diagnostic information found under the Monitor button as well as the configuration settings found under the Edit button Entering an incorrect password will result in a time out err
59. P address Two configurations of your LAN administrator station are possible to enable you to logically access the RLM Your LAN administrator station is the SIMATIC NET IWL station Your LAN administrator station is a wired Ethernet station C 2 11 Your LAN administrator station is a Wired Station Your LAN administrator station is connected to the RLM via the Ethernet interface of the RLM Make sure the LAN administrator station and the RLM are connected to the same LAN segment subnet To communicate with the RLM in Forced Reload state no routers are allowed between the target RLM and the LAN administrator station When using IP addressing write down the IP address that the Radio Link Module should use Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 247 Doing a Forced Reload C 2 1 2 Your LAN administrator station is a Wireless Station 248 You can use a wireless LAN administrator station to access the Radio Link Module in force reload mode ONLY IF the station has indirect access to the RLM as described on Wireless Access via an Indirect Connection page 52 Make sure that your LAN administrator station matches the settings of the RLM that you will use to establish the connection to in forced reload mode e Make sure the LAN administrator station is within range of the RLM When using IP addressing write down the new IP address that you would like to assign to the RLM
60. RLM Manager Monitoring Remote Statistics Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 271 Bytes out C The number of frames requested by higher level protocols that are to be transmitted to a Non Unicast address i e a subnetwork broadcast or subnetwork Multicast address This number includes the frames that were discarded or not sent See also RLM Manager Monitoring Remote Statistics Collisions D The number of packets that were not received properly as a result of a collision due to multiple stations trying to send packets over the medium simultaneously See also RLM Manager Monitoring Remote Statistics DHCP Dynamic Host Configuration Protocol 272 DHCP is a Microsoft proprietary extension to the existing bootstrap protocol BOOTP DHCP enables a LAN administrator to have a network server configure workstations with an IP address dynamically without further intervention Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 A dynamically assigned IP address is referred to as an Active Lease The Active Lease usually has an expiry date which allows re allocation of IP addresses that are no longer used For Radio Link Modules you are advised to use a specific IP address for which there is no expiry date To do so you can use your DHCP management program to reserve the IP address or a range of IP addresses For network devices that
61. Remote System Check the list of parameters displayed thoroughly to make sure all settings are right e f the pop up window does not display the correct IP address and or SNMP passwords click No to cancel e If the IP address and or SNMP passwords are correct click Yes to proceed 12 The RLM Manager program will upload the new restored configuration to your RLM and load it into the FlashROM WARNING The RLM will reboot and start bridging operation in approximately 60 seconds Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload C 2 4 Creating a Back up File You are advised to save the configuration parameters of the Radio Link Module to a back up file cnf To create a back up file use the Download Config File option from the Radio Link Module menu You are advised to create a back up file to anticipate future network errors that might force you to do a forced reload in the future Save the back up file under a name that allows for easy identification in the future C 2 4 1 Start up Diagnostics On reboot the RLM will do start up diagnostics characterized by a LED sequence where the LEDs will change color in the range Amber Red and Green The start up diagnostics take approximately 15 seconds When finished the RLM will start bridge operation characterized by the LED activity See Troubleshooting page 236 for more information Industrial Ethe
62. SIEMENS SIMATIC NET Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager Manual C79000 G8976 C171 01 Release 11 2001 Copyright Siemens AG 2001 All rights reserved The reproduction transmission or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages All rights including rights created by patent grant or registration of a utility or design are reserved Siemens AG 2001 Bereich Automatisierungs und Antriebstechnik Geschaftsgebiet Industrie Automatisierungssysteme Postfach 48 48 D 90327 Nurnberg Disclaimer We have checked the contents of this manual for agreement with the hardware and software described Since deviations cannot be precluded entirely we cannot guarantee full agreement However the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions Suggestions for improvement are welcome C79000 G8976 C171 01 Siemens AG 2001 Subject to technical change Siemens Aktiengesellschaft Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Classification of Safety Related Notices This document contains notices which you should observe to ensure your own personal safety as well as to protect the product and connected equipment These notices are highlighted in the manual by a warning triangle and are marked as follows according to the
63. Signallevel M 58 dBm Noise level Jf 94 dBm Received messages 11 Mbps 5291 99 5 5 Mbps 5 1 2Mbps 0 0 1 Mbps 0 0x The Link Test window provides you with three link test options to assist you in analyzing the link test data e Test results provides measurement results of the link test e Test history provides graphical results of the link quality e Log Settings set the measurement parameters to record test results for future analysis 76 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager 5 2 2 1 Test Results Tab The Test Results tab is your primary screen to analyze link test results using the following indicators e Signal to noise radio SNR e Received messages 5 2 21 1 Signal to Noise Ratio SNR The signal to noise ratio SNR identifies the communications quality of radio path between your station and the link test partner This indicator is updated dynamically according to the actual status of the radio link The color of SNR indicator relates to the following levels of communications quality Color Description e Green Communication quality is Excellent or Good no intervention is required e Yellow Communication quality is Marginal no intervention is required e Red Communication quality is Poor intervention required see chapter B Troubleshooting If the level of SNR is lower than expected the s
64. VAl S362 even E ewsacshay ewacsa seas aushc nteenlua aise decesecnauvouaandecets 112 Optimizing Performance WTROGUCTIOR is eae essence ciel teeta aces aeaa a iea a Aaa oeaiei 116 Eliminating Redundant Traffic cccccceeccccccssteeeeessseeeeestseeeeenees 117 Protocol Filtering 2 208 ie se tia hdd eit i Aa i ee ee 118 Do You Need Protocol Filtering 118 Filtering Network Protocols 120 Optimizing Wired Connections 121 Checking the Cable System c ceeeeee 122 Checking the Length of Your LAN Segments s 124 Optimizing Wireless Connections i 125 Diagnosing Link Quality 126 LAK INEJ eee 3 an ase a Reece 144 Designing High Capacity Networks 8 146 About the CSMA CA Protocol cccccccceeeseeeeeeeeeeeeneeeeeneeesenueeessteeetnaeees 146 Security Introductionis yschne tines neti esas toe toa E Rie tac te aA A 154 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 7 2 Securing Access to Wireless Data 00 ccecccccceesecceecsseeeeessseeeenaes 155 7 2 1 Restrict Wireless Access to the Network 155 7 2 2 Closing the Wireless Network 156 7 2 3 Access Control 159 7 2 4 Enabling Access Control cee 160 7 2 5 Creating Editing an Access Control Table 161 7 2 6 Importing an Access Control Table 163 L2 7 Disabling Access Controllera eene Sa
65. able RTS CTS medium reservation click the Advanced button on the Wireless Interfaces tab 8 21 3 Interference Robustness The Interference Robustness can be activated in exceptional cases when troubleshooting slow performance of your network that could be related to in band interference from e g microwave ovens Interference will usually show a poor Signal to Noise Ratio SNR that is based upon a good signal level and a high noise level This behavior is often perceived when the trouble station or Radio Link Module is close to a interference source or an interference source is located in the signal path between the trouble stations and the Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 193 Advanced Parameters To enable Interference Robustness click the Advanced button on the Wireless Interfaces tab in the edit mode to display the Advanced Setup window then select the option Interference Robustness 8 21 4 Distance Between APs In networking environments where you have either data intensive users or a large number of users in a small area you may wish to consider increasing the number of Access Point RLMs making the distance between Radio Link Modules smaller and then adjusting the Distance Between APs parameter to optimize the load balance of the number of wireless stations per Access Point RLM To change the Distance Between APs parameter display th
66. administrator station Within this chapter decision points are described which are necessary to help you set up LAN administrator station s to properly manage your network Typically the LAN administrator station is a computer used by the LAN administrator to configure manage and monitor the network You can assign as many LAN administrator stations as you like depending on how you would like to manage your network The LAN administrator station uses the tools available in the SIMATIC NET Industrial Wireless LAN software suite to configure and monitor your network The following programs are included within the SIMATIC NET Industrial Wireless LAN software suite e CP 1515 Manager e RLM Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction In this chapter we describe how to set up the LAN administrator station in the following network configurations e Peer to Peer workgroup all stations within the network directly communicate with all other stations No Access Points RLMs are necessary to bridge the data e Infrastructure network all stations communicate to each other and the Ethernet backbone via Access Point RLM interfaces For an overview of the SIMATIC NET Industrial Wireless LAN software tools please refer to About Siemens SIMATIC NET Industrial Wireless LAN Tools page 17 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 33
67. ager station is connected to a Peer to Peer workgroup see chapter 2 Wireless Configurations In this type of network you will be able to select your link test partner from a list of stations available in the independent network identified by the same wireless network name as your CP 1515 Manager station Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager To start the link test select Link Test in the Advanced menu of the main CP 1515 Manager window This will display the window pictured in Figure 14 Link Test Window Across the top of the Link Test window you can see e The radio channel on which both devices are communicating e The name of your computer This Station e The name of the link test partner Test Partner and e The quality of the connection Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 75 Using the CP 1515 Manager Figure 14 Link Test Window Client Manager Link Test Channel 1 This station John s Workstation Test partner Access Point Floor Test Results Test History Log Settings r Total messages r This station Address 00 60 1D 1E 1F 27 SNR 398 Signal level NN 55 dBm Noise level I 93 dBm Received messages 11 Mbps 5296 100 Sent 5297 5 5 Mbps 0 0 Received 5296 2 Mbps o 0 Lost 0 1 Mbps 0 0 Lay Excellent connection r Test partner Address 00 60 1D 1E 1F 3F SNR 368
68. al Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload Figure 45 Configuration an upload in forced reload mode Select Access Point with Forced Reload status Select menu m Access Point Upload Software Error Message t Button Edit p_ First Upload Software y Button Monitor Fil Prompt Select binary file bin i Prompt lt Cconfiguration file gt _YES gt Select ae Configuration file NO Prompt Prompt View and verify Verify the configuration configuration settings settings Click Upload to save the configuration to the access point Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 251 Doing a Forced Reload 252 To configure the Radio Link Module in forced reload status and to upload the configuration do the following steps 1 Select the RLM which is in Forced Reload The Radio Link Module in Forced Reload status is displayed in the main RLM Manager at the top of the list and can be recognized window as follows see Figure 46 e the RLM is marked with the Forced Reload icon e the RLM is marked with the status Forced Reload and e the RLM has the IP address 153 69 254 254 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Doing a Forced Reload Figure 46 The RLM in Forced Re
69. ality between your CP 1515 Manager station and all Access Points RLMs within its range The site monitor has been designed for indoor roaming environments to e Determine the overall wireless coverage of your SIMATIC NET IWL network e Verify or optimize the placement of your Radio Link Modules in order to provide seamless roaming connectivity to mobile stations Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 81 Using the CP 1515 Manager When roaming throughout a wireless network environment with your CP 1515 Manager station you will be able to identify areas that may not have adequate coverage or that suffer from in band interference from other wireless equipment such as security gates microwave ovens or photo copiers To start the site monitor select Site Monitor in the Advanced menu in the main CP 1515 Manager window This will display the window pictured in Figure 15 Site Monitor window 5 2 3 1 Options in the Site Monitor Window e Site Monitor tab the primary tab to monitor the performance of your wireless network see Site Monitor Tab page 83 e Selection tab enables you to scan for neighboring SIMATIC NET IWL networks and select such networks for monitoring see Selection Tab page 86 e Log Settings tab allows you to enable disable or configure the site monitor logging options see Logging Measurement Data page 92 e AP names tab allows you to create user def
70. anish are also spoken on the authorization hotline Figure 47 Service and Support ake g a ae i oe Johnson City LOS Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 263 Automation and Drives Service amp Support Technical Support Authorization Hotline Europe and Africa Nuremberg Mo to Fr 7 00 to 17 00 local time GMT 1 Phone 49 0 180 5050 222 Fax 49 0 180 5050 223 E mail techsupport ad siemens de Europe and Africa Nuremberg Mo to Fr 7 00 to 17 00 local time GMT 1 Phone 49 0 911 895 7200 Fax 49 0 911 895 7201 E mail authorization nbgm siemens de America Mo to Fr 8 00 to 19 Phone 1 0 Johnson City 00 local time GMT 5 423 262 2522 Fax 1 0 423 262 2231 E mail simatic hotli ne sea siemens com Mo to Fr 8 30 to 17 Phone 66 Fax 65 0 740 7001 E mail simatic hotline sae siemens com sg Asia and Australia Singapore 30 local time GMT 8 0 740 7000 264 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Automation and Drives Service amp Support SIMATIC Premium Hotline Worldwide Nuremberg Fast callback Workdays guaranteed within a maximum of two hours 0 00 to 24 00 local time GMT 1 Phone 49 0 911 895 7777 Fax 49 0 911 895 7001 E mail techsupport ad siemens de
71. artup and operation of this product and who possess the relevant qualifications for their work e g e Training in or authorization for connecting up grounding or labeling circuits and devices or systems in accordance with current standards in safety technology e Training in or authorization for the maintenance and use of suitable safety equipment in accordance with current standards in safety technology Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 9 Contents 5 SSS a E BBRABR KR w NNN b 3 Da Se BRWNS NN NNN N N N ppro 2 Introduction About Siemens SIMATIC NET Industrial Wireless LAN 00004 16 About Siemens SIMATIC NET Industrial Wireless LAN Tools 17 CP 1515 Manage e eeh Blas hoe er ates ered yas dd ea E TESE i 19 REM Manager sit tsi cect ack e at hte st tear et aaah eet ot Ae AN 19 About SIMATIC NET Industrial Wireless LAN RLM nsss 20 About ThisiMantiall 45 2228 Se Aes i td Sako ts SRE DM A ENS 21 About Icons used in this Document 22 On line Help Documentation dex 22 Additional Files on your CD ROM 23 Other Sources of Information isi miat ia aaea R 23 Wireless Configurations IMTPFOUUGHON 2 A A P E E AEE E AI E E A E 24 Peer to Peer WOrkgrOupie ccciseeescesecvetiactades ccvaaesanccnctedecd eesdeevavarcesacctee 25 BasicInfrastruGturei oo fete be a eae ee a ee aA Stand Alone Configuration 0 008 Wirele
72. at will forward packets between that LAN segment and the Root Bridge Select a Root Port among all ports of the bridge unit The spanning tree algorithm enables bridges to calculate a loop free subset of the LAN topology a tree that provides the most efficient level of connectivity between every pair of physically connected Local Area Network segments If the shortest data path fails for example as a result of a physical breakdown the Spanning Tree will automatically rebuild the topology within the confines of the available bridged LAN components Station address The station address is a unique identification designator stored in each SIMATIC NET IWL PC Card and Radio Link Module The addressing system used for station addresses conforms to the universal MAC addressing convention The station address is a 12 digit alphanumeric code arranged as 6 digit pairs of hexadecimal numbers see also MAC Address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 289 Station Name The station name is an optional parameter that may be used to designate wireless devices in the network The name can help to identify a device in one of the SIMATIC NET IWL diagnostic utilities A station name can consist of up to 31 alphanumeric characters Storm Threshold An advanced Bridge setup option that you can use to protect the network against data overload by E Specifying a maxi
73. atch you will need to compare the configuration parameter settings of both RLMs and all stations involved To determine a component failure check the LED activity of the Radio Link Module You can use the LED Error Table to determine if a problem has a hardware related cause component failure This table may also provide help in diagnosing and solving operational problems that might have other possible causes When your RLM appears to have stopped responding to normal bridging requests you may try to reboot the device as described under Rebooting RLMs In exceptional cases you may consider to do a forced reload procedure as described in Forced Reload Procedure 236 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction Table 12 LED Error Table Power Ethernet Wireless Wireless Description Action interface interface A B O S ae Contin Flicker Flicker Flicker Normal operation where flickering Green Green Green Green indicates interface activity No action required Off Off Off Normal operation that indicates there is no LAN activity e No action required e Optional Check if all Ethernet connections are properly installed Off Off Off Off No power e Check the power cord e Check the power supply Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 237 Introduction Contin Green Flicker Amber
74. ation is out of range of the Access Points RLMs that you wish to monitor Typically the values for signal level and SNR are 0 zero e Aconfiguration mismatch of your CP 1515 Manager station for example Your CP 1515 Manager station uses a specific network name that does not match the name of the infrastructure that you wish to monitor Your CP 1515 Manager station uses the network name ANY and when it was powered up the station erroneously connected to the RLM of a neighboring network because that RLM provided the best level of SNR e The infrastructure that you wish to monitor has been Closed to wireless IEEE 802 11 compliant devices that try to establish a radio connection using The network name ANY or Azero string SSID the equivalent of the network name ANY When your CP 1515 Manager station uses the network name ANY you can use the Selection tab to see other networks as described on Selection Tab page 86 For more information on open and closed infrastructure networks please consult Security page 154 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 97 Using the RLM Manager 5 3 Using the RLM Manager You can use the RLM Manager to e Display a standard set of SNMP variables to monitor general LAN traffic performance in your network see Remote Statistics Tab page 108 e Display remote link test measurements S
75. ations Channel A Channel B Channel C 2412 MHz 1 2437 MHz 6 2462 MHz 11 For wireless networks where wireless cells only may also experiment with multiple channel confi have a slight overlap you guration using a channe separation of less than 25 MHz for example using the channels as listed in Table 3 Optional Sub Channel Configurations Table 3 Optional Sub Channel Configurations Channel A Channel B Channel C Channel D 2412 MHz 1 2427 MHz 4 2442 MHz 7 2457 MHz 10 6 Click OK to close the Wireless Advanced Setup window and return to the Wireless Interfaces tab 7 Optional Repeat steps 3 6 to verify and or change the second network interface in this Access Point RLM requency for the 8 Click OK again to save the new configuration to the Radio Link Module and to return to the main RLM Manager window 9 Next create a backup file of the new configuration see Step 4 Create a Back up of the Configuration page 66 10 Update the Access Point Configuration Record in chapter A Start up Configuration to reflect these changes Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 143 Eliminating Redundant Traffic 11 Optionally Modify the configurations of all your other Access Points RLMs accordingly We recommend that you use different frequencies for neighboring Radio Link Modul
76. aveL ANAEEE X Link fest Explore The middle section of the Select Remote Link Partner for window displays all wireless devices connected to the initiator station The following fields are visible e The fields Station Name and Address these wireless devices are identified by their station name and MAC address respectively This list may change as roaming mobile stations enter or exit the coverage area of the selected RLM e The Interface field identifies the slots of the Radio Link Module into which the PC Card CP 1515 has been inserted 104 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager 2 PC Card slot A 3 PC Card slot B e The Radio Type field identifies the type of PC Card in the corresponding slots IEEE 802 11 for PC Cards CP 1515 2 Optional To refresh the list click the Refresh button 3 Select a station from the list and click the Link Test button to display the Remote Link Test window as pictured in Figure 20 Remote Link Test window j NOTE Subject to the Radio Type of the wireless network interface that you selected the lay out of the Remote Link Test windows may differ The window pictured in Figure 20 Remote Link Test window represents the window for the wireless network interface Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 105 Using the RLM Manager 106
77. be transmitted via the wireless interface Click OK to return to the Wireless Interfaces tab 7 Click OK again to save the configuration to the Radio Link Module and to return to the main RLM Manager window WARNING The RLM will now reboot Optionally you can choose to configure your Access Point RLM to allow or deny non encrypted data 170 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Wireless Data Encryption 73 1 1 WEP Encryption Key Values If you select to enable encryption you may choose to enter up to the following encryption keys For the CP 1515 that supports 128 bit RC4 encryption algorithm valid values are either 13 digit alohanumerical value in the range of a z and 0 9 Example SECURE1234567 e A 26 digit hexadecimal value preceded by the characters Ox zero x Example 0x1234567890ABCDEF 1234567890 e Asan option you can also use short example 64 bit values Hexadecimal strings that are not preceded by the leading Ox will be interpreted as alphanumerical string NOTE The WEP key values you enter will remain visible only when you enter the character strings As soon as you close the Security Setup window the values will be stored in hidden characters i e a next time the Security Setup window will be displayed you will not be able to read the WEP key values anymore You are advised to write down the values you enter prior
78. blish a wireless connection with your Radio Link Module infrastructure 4 Configure all Radio Link Modules to Enable RADIUS MAC Address authentication Set the RADIUS Authorization Lifetime Set the Authorization Password Identify the IP Address of the RADIUS server s Verify the Authentication Port of the RADIUS server s Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 165 Securing Access to Wireless Data 7 2 81 RADIUS Server Access Control RADIUS Access Control enables you to e Specify the lifetime of a granted authorization e Set the authorization password e Assign up to two RADIUS servers for validating the MAC address of wireless stations For each RADIUS server you will need to specify e The unique IP address of the RADIUS server e The Authentication port as used by the selected server To restrict access to your network using MAC address control via a RADIUS server 1 Start the RLM Manager and select the Acess Point RLM 2 Click the Edit button 3 Select the Access Control tab 4 Click the lower Edit button to display the RADIUS server name and secret parameter 5 Enable the check box Enable RADIUS Server e Default value is RADIUS Access Control Disabled For more information refer the help file press F1 of the RLM Manager 166 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Wireless Data Encryption 73 W
79. by means of a wireless point to point connection as pictured in Figure 7 Wireless Access via a Direct Connection or e Indirectly by means of a wireless point to point connection with another Access Point RLM that provides access to the target Access Point RLM via a network backbone as pictured in Figure 8 Wireless Access via an Indirect Connection NOTE In the same manner in which wired networks require you to verify that all cables are connected properly to establish connection wireless networks require you to verify that Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 51 Configuration Scenarios the LAN administrator station is within range of the target Access Point RLM and the wireless network interface setup matches the parameter values of the Access Point RLMs When using the configuration setup as pictured in Figure 7 Wireless Access via a Direct Connection the wireless network interface of the LAN administrator station should be configured to match the settings of the target Access Point RLM Figure 8 Wireless Access via an Indirect Connection Ki a A ra LAN administrator station When looking at the scenario pictured in Figure 8 Wireless Access via an Indirect Connection the wireless network interface of the LAN administrator station should be configured to match the settings of Access Point RLM B 52 Industr
80. cess Point RLM To connect to the Radio Link Module you need to address each Radio Link Module via its IP address e f your network includes a BOOTP or DHCP server the IP address will be assigned automatically refer to BOOTP and DHCP page 231 for more information about BOOTP DHCP e In situations where no IP addresses are assigned automatically the LM factory default IP address will be 153 69 254 254 You must change this factory set IP address 153 69 254 254 upon first configuration 60 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Infrastructure Networks To connect to the RLM proceed as follows 1 Start the RLM Manager program 2 Select the Radio Link Module that you wish to configure from the list or enter the IP address in the field Enter the IP address for a specific RLM see Figure 11 Main RLM Manager window e Anew Radio Link Module is marked with a special icon e This list will display all Access Points RLMs located on the same IP subnet as your management station see also Modifying the Configuration page 226 e To gain access to Access Points RLMs on a different subnet or via a dial up connection enter a specific IP address in the field Enter the IP address for a specific Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 61 Configuring Infrastructure Networks 62 Figure 11 Main RLM Manager wi
81. ck OK to return to the Bridge tab All of the protocols that you have selected and or all of the custom protocols that you have added manually will be listed in the Protocol Filtering field Click OK again to save the changes to the Access Point RLM and to return to the main window of the RLM Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic 11 Download a backup file as described in Step 4 Create a Back up of the Configuration page 66 When prompted to enter a name for the back up file you are advised to select a name that is different from the original configuration file Do not overwrite the previous version of the back up file since this might jeopardize your ability to restore the original configuration if this change did not result in the expected performance increase Repeat the steps as described under Do You Need Protocol Filtering page 118 to see whether this change resolved your problem If this does not solve your problem consider one of the following options e Optimizing wired connections e Optimizing wireless connections 6 2 4 Optimizing Wired Connections Sometimes performance degradation of your wireless connection is caused by a failure in the cabling system that connects the network to the wired infrastructure Such failures may be caused by one of the following situations e A faulty cable or connector in the wired infrastructur
82. com mobic 20 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 About This Manual 1 4 About This Manual This Manual describes how to use the SIMATIC NET Industrial Wireless LAN IWL tools to configure and monitor wireless LANs built with SIMATIC NET IWL products In this manual you will find the following e 1 Introduction describes the SIMATIC NET Industrial Wireless LAN tools and the sources for finding more information e 2 Wireless Configurations describes network scenarios that will be used throughout this document e 3 Setting Up your LAN Administrator Station describes how to select a station to manage your SIMATIC NET Industrial Wireless LAN network and how to install the necessary software e 4 Basic Network Configuration explains how to configure your particular network using three network scenarios from simple to sophisticated e 5 Monitoring your SIMATIC NET IWL Network describes how to monitor and diagnose communications quality e 6 Optimizing Performance presents a number of considerations to help you sort through the complex factors that determine the performance of your wireless LAN e 7 Security describes how to enhance security and minimize unauthorized use of your SIMATIC NET Industrial Wireless LAN network This document does not describe every possible option supported by the SIMATIC NET Industrial Wireless LAN software suite It
83. communication from one computer to another within the same wireless cell This is the quickest and easiest way to set up a small wireless LAN infrastructure The mobile stations communicate via RLM Figure 2 Stand Alone Configuration Network Name 26 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Basic Infrastructure The wireless infrastructure is identified by a unique network name All equipped devices that wish to connect to this network must be configured with an identical network name Mobile wireless stations will maintain communication with the infrastructure as long as they remain within range of the Access Point RLM 2 3 2 Wireless Access to Ethernet Networks Connecting Access Point RLM to an Ethernet network as pictured in Figure 3 Wireless to Ethernet Access Configuration allows you to e create a wireless environment for mobile computers or e connect a number of wireless stations to an existing Ethernet infrastructure creating a larger coverage area Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 27 Basic Infrastructure Figure 3 Wireless to Ethernet Access Configuration Network Name N _ All wireless stations within this coverage area that wish to connect to the network must be configured with the same network name as the Access Point RLMs Roaming wireless stations will automatically switch between RLMs whe
84. d RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 43 Installing SIMATIC NET IWL Software 44 you can set the P adresses manualy You must order the korrect IP adresses from your LAN admistrator see also section About IP Addresses and Subnets page 229 e When the network operating system in your network does not use the TCP IP protocol you will need to install it onto the LAN administrator station and assign a userdefined IP address to each LAN administrator station e When your network operating system uses the TCP IP protocol your station will already have an IP address assigned to it This could either be a user defined value or a value assigned by for example a DHCP server You do not need to modify this IP address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Installing SIMATIC NET IWL Software To verify whether the TCP IP protocol is properly installed proceed as follows 1 On the Windows task bar click the AStart button Be 2 Point to Settings and then click on Control Panel 3 In the Control Panel window double click the Network icon Verify that the list of network components includes the TCP IP Protocol for the wireless network interface that you will use to access the Access Point RLM e g your Ethernet or adapter e f Yes close all windows using the Cancel button and proceed with Configuration Scenarios page 47
85. d slot of the Access Point RLM will double the capacity of the Access Point RLM This option might be used in cases where a high rate of lost messages prevent fast data communication 8 7 About IP Addresses and Subnets In larger organizations that make use of IP addressing for communications the network architecture may include different network segments subnets typically separated by a router or gateway When installing the SIMATIC NET IWL infrastructure into this type of network architecture please note that all Radio Link Modules and wireless stations must be installed on the same subnet i e on the same side of the router or gateway The roaming functionality does not work over routers When RLMs are connected to different subnets a mobile station may lose its network connection when it physically enters an area where the RLMs are connected to a different subnet The configuration and management of your Radio Link Modules is managed via the TCP IP protocol stack This means that each Access Point RLM and computer that you wish to use to configure the RLMs must have a unique IP address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 229 About IP Addresses and Subnets You are advised to assign static IP addresses to the Radio Link Modules as described earlier in this chapter This ensures that the RLMs at specific locations will always have the same IP address For the LAN administrator
86. default IP address as described earlier in Step 2 Connecting to the Access Point RLM page 60 3 When asked navigate to the disk and or folder where you stored the template file 4 Select the template configuration file e g common cnf and click the Open button WARNING The IP address that was displayed in the list in the main RLM Manager window has been overwritten with the IP address which was specified in the template file Follow the Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 223 Configuring Large Networks procedures described below to change it to the desired IP address value Failing to do so may lead to multiple RLMs being configured with the same IP address resulting in unpredictable network behavior The RLM Manager program has now loaded the settings as identified in the template file Now you must change all the parameters that should be unique to this Access Point RLM see Unique Parameters page 220 prior to saving the configuration and returning to the main Radio Link Module window by clicking OK 5 Set the unique parameters that apply to this Access Point RLM The minimum set of unique parameters that Table 8 Unique RLM Parameters you must set are listed in 6 Now save the configuration to the Access Point RLM by clicking the OK button You return to the main Radio Link Module window 7 Create a back up file of the configuration for
87. diagnostic tool to monitor wireless radio communication between a wireless station and its Access Point RLM or to monitor the link between two wireless stations in an independent network Furthermore it can be used as a site monitor to show the coverage of the installed Access Point RLM in a certain area 1 2 2 RLM Manager The RLM Manager is primarily a tool for LAN administrators or system supervisors You can use the RLM Manager program to configure Radio Link Modules RLMs and to monitor the performance of your wireless network It can be run on any station in the network either wired or wireless Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 19 About SIMATIC NET Industrial Wireless LAN RLM 1 3 About SIMATIC NET Industrial Wireless LAN RLM The Radio Link Module RLM is a transparent bridge device equipped with two PC Card slots A and B Wireless Network Interfaces A and B are corresponding to slot A and B of the RLM into which PC Cards CP 1515 can be inserted The Access Point RLM is identified by either one of the following MAC addresses The universal MAC address of one of the Wireless Network Interface s used by the Access Point RLM or The universal MAC address of the Ethernet Interface For information concerning all Siemens SIMATIC NET Industrial Wireless LAN products please refer to the documentation that was included with your product or visit our http Awww siemens
88. dio Link Module A station may be hidden from another station within the same coverage area for more information on hidden stations see the section RTS CTS Medium Reservation page 131 6 2 8 Diagnosing Link Quality The occurrence of a poor link quality on the wireless network can be diagnosed in different ways 126 You can use the RLM Manager tool to diagnose the quality of radio communications on site as described in Monitoring your SIMATIC NET IWL Network page 67 or Use the RLM Manager tool to investigate from your current location whether a specific remote area is suffering from poor radio performance The RLM Manager provides the following options to diagnose radio link quality The remote link test The IEEE information The Remote Statistics tab Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic These tallies can be useful in determining whether or not the performance of your network is caused by interference 6 2 81 Remote Link Test For instructions about the Remote Link Test window that displays communications as dynamic indicators please refer to the information about this window as described on Remote Link Test Window page 103 Important indicators to monitor on the Remote Link Test window are e Signal to noise ratio SNR for an overview of the radio link quality e Signal level to determine whether a poor SNR is r
89. dit the Radio Link Module configuration You can set the Read Write password using the SNMP tab in the RLM Manager program Remote Link Test A SIMATIC NET IWL diagnostics option of the CP 1515 program You can use the Remote Link Test to analyze the Link Quality between a remote RLM and a station connected to the selected Radio Link Module unit This option is often used to investigate wireless outdoor links or to analyze the Link Quality of wireless stations in a remote network Roaming Roaming is a function that enables mobile SIMATIC NET IWL devices to migrate between different physical locations within the LAN environment To allow roaming each of these locations must be services by a Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 285 S The roaming functionality will monitor the communications quality with the RLMs and if required automatically connect to another access point to maintain the network connection Roaming is only possible within one domain i e as long as the mobile station is within range of Radio Link Modules that are identified by the same Wireless Network Name Signal Level The signal level indicates the strength of the SIMATIC NET IWL signal as received at the wireless network interface Site Monitor A SIMATIC NET IWL diagnostics option of the CP 1515 program that enables you to display the communications quality of multiple Acce
90. e e ALAN segment that has been stretched over a distance that is too long Usually what will happen in this kind of situation is that e The system does not work at all or Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 121 Eliminating Redundant Traffic Your network system will generate a large number of error messages as a result of the faulty connection s As these messages are taking up bandwidth the performance of your network may become very slow 6 2 5 Checking the Cable System The occurrence of a problem in the cabling system can be diagnosed with the remote statistics found on Remote tab in the monitor mode of the RLM Manager 122 1 Select Interface 1 Ethernet from the pull down menu to display the statistics for the Ethernet interface Compare the number of In errors with the number of Bridge in packets e When the number of In errors is 1 or more of the Bridge in packets this may indicate a cabling problem Compare the number of packets Out errors with the number of Bridge out packets e When the number of Out errors is 1 or more of the Bridge out packets it is likely that there is a cabling problem Compare the number of Out carrier sense errors with the number of Bridge out packets e When the number of Out carrier sense errors is 1 of the Bridge out packets or the value of the Out carrier sense errors increases t
91. e RLM Manager 5 3 5 1 Starting Remote Statistics To display remote statistics for the Radio Link Module you must first connect to the target RLM as described in Connecting to Access Points RLMs page 99 1 To view the remote statistics select the Remote tab from the RLM Manager window in the monitor mode see Figure 21 Remote Statistics information The performance for each of the interfaces of the selected Access Point RLM can be displayed Selecting the interface of your choice from the Select the interface pull down menu 5 3 5 2 Important Indicators to Monitor he RLM Manager Remote tab statistics display a wide range of variables that provide information about the performance of the selected RLM The indicators which provide the main monitoring information is called the ratio of Errors to Bridge Packets There are three ratios which are of particular diagnostic value e In errors Bridge in packets e Out errors Bridge out packets e Out collisions Bridge out packets The following table provides diagnostic information relating to each of these three ratios 110 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager Table 1 Ratio of Errors to Bridge Packets Ratio Errors to Conclusion Bridge Packets 0 1 or less Status Performance is Good Impact None Action None 0 1 and 1 Status Performance is accep
92. e Wireless Interfaces tab in the edit mode and click the Advanced button In the field Distance Between APs choose one of the three density options e Large default e Medium e Small The default setting Large provides a maximum wireless coverage with a minimum number of Access Point RLMs This option which is typically used for single cell networks but will also provide an efficient and cost effective solution for most networks that include multiple wireless cells 194 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters CAUTION The setting for distance between Radio Link Modules must be the same for all SIMATIC NET IWL equipped devices in your wireless network A mismatch in the configuration setting for this parameter may have unpredictable performance results for wireless mobile stations in your network Medium distance between Access Point RLMs can be selected for environments where stations experience slow network response times even though the quality of radio communications is rated as excellent The slow response times might be experienced in areas where e A high number of wireless stations is located close to one another causing other stations to defer data transmissions e Anumber of wireless stations engaged in heavy network traffic is causing other stations to defer data transmissions e The setting Large creates overlapping radio cells which may cause
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94. e different radio channels used by the Access Points RLMs 2 Optional Click the Scan Now button to refresh the list of observed networks 3 Click the network of your choice to return to the Site Monitor tab and display the diagnostic indicators NOTE For reasons of security the site monitor will not display the network name and the MAC address or Radio Link Module names of the neighboring network You can display these values only for the infrastructure network to which you are actually connected When the list of Observed Networks does not show other networks this means that e Your CP 1515 Manager station has been configured with a specific Network Name e This setting will not allow you to scan for monitor other network infrastructures To do so you will need to reconfigure your station to use the Network Name ANY e There are no other networks operational in the vicinity of your CP 1515 Manager station or 1 Although the Site Monitor Selection tab will allow you to determine the presence of a neighboring Independent Ad Hoc network you can not select this type of networks for Site Monitor statistics This is because this feature requires the presence of Access Points RLMs Ae are Wpically not available in Independent networks see also Wireless Configurations page 24 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 89 Using the CP 1515 Manager e The nei
95. e total number of data packets arriving at the RLM from the LAN segment served by the selected wireless network interface This number reflects the sum of Unicast and Non Unicast packets See also RLM Manager Monitoring Remote Statistics Bridge in discards The number of data packets not accepted by the RLM See also RLM Manager Monitoring Remote Statistics 270 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Bridge out The number of data packets that have been forwarded by the RLM to the LAN segment served by the selected interface See also RLM Manager Monitoring Remote Statistics Bridge Priority A Bridge setup parameter that enables you to influence the choice of the Root Bridge and the Designated Bridge as calculated by the Spanning Tree Algorithm A low numerical value of the Bridge Priority Parameter makes the bridge more likely to become the designated bridge or Root Bridge typically 0 The recommended value is 32768 Valid values 0 65000 Initial value 32768 See also RLM Manager Setup Bridge Parameters Broadcast Messages transmitted by a single station typically a server to all stations on the network This type of traffic is also referred to as Non Unicast messages Bytes in The number of bytes octets received at the RLM from the LAN segment served by the selected wireless network interface including framing characters See also
96. ed as described below 1 Start the RLM Manager and select the Access Point RLM 2 Click Edit to connect the RLM 3 Select the Wireless Interfaces tab see Figure 33 4 Select the interface PC Card slot A or B of the network you wish to secure Click the Security button to display the security properties Click the check box next to Closed Wireless System 7 Click OK to confirm and close the Wireless Security Setup window Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 157 Securing Access to Wireless Data Figure 33 Close the Wireless System Edit Access Point configuration 192 168 1 71 Access Control Link Integrity Ethernet Interface Wireless Interfaces Access PointIP SNMP Bridge PC card slot A Network Name YOUR COMPANY NETWORK HERE Wireless Security Setup x IV Closed Wireless System I Enable Encryption PC card slot B There is no PC card in thi Vv Encrypt Data Transmissions Using fi ey 1 Y Cancel Help Encryption Key 8 Optional Click the second interface to set the security parameters return to step 4 158 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access to Wireless Data 9 Click OK to save the new configuration to the Access Point RLM and to return to the main RLM Manager window WARNING Your Access Point RLM will automatically reboot and start bridging operation a
97. ed as dynamic indicators and or numerical values in dBm e Display the MAC address of the wireless cards in the access point This option may be useful if You are building the access point name list as described in AP Names Tab page 90 Your network includes RLM s that have been equipped with multiple PC Cards CP 1515 and you wish to distinguish the cards inserted into the access point specifically 5 2 3 4 Selection Tab 86 The Selection tab enables you to select another network in situations where you wish to e Verify the presence of neighboring networks e Determine whether such network might interfere with your network Which Access Points RLMs will be displayed when you start the site monitor tool is actually determined by the configuration of the network name parameter on your CP 1515 Manager station Edit Add Configuration Profile in the Actions menu of the main CP 1515 Manager window For example when the network name of your CP 1515 Manager station is set to e A specific Network Name the station will Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager only connect to an infrastructure network identified by the same network name when the station is powered up display only the Access Points RLMs belonging to that network that are within range of your CP 1515 Manager station e ANY network the monitoring station will
98. ee Remote Link Test Window page 103 between a remote Access Point RLM of your choice and a wireless station connected to the selected Access Point RLM The RLM Manager has been designed to monitor your network from a central location e g the LAN administrator station enabling you to monitor wireless performance in areas that can not easily be reached For example wireless networks in remote locations 5 31 Monitoring Options 98 The RLM Manager program offers a variety of diagnostic options of which the following two are the most relevant for standard users e System information see System Information page 101 e Remote link test see Remote Link Test Window page 103 e Remote statistics see Remote Statistics Tab page 108 All other diagnostic options are standard SNMP tallies that are not described in this manual but documented in the on line help system of your RLM Manager program Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager NOTE All diagnostic options are described in the on line help information of the RLM Manager To access that you can access by pressing the function key or clicking the Help button in your RLM Manager window 5 3 2 Connecting to Access Points RLMs To start monitoring the Radio Link Module you must first connect to the target Radio Link Module 1 Start the RLM Manager program 2 Select the target RLM from t
99. eed to have access to the problem location to do on site diagnostics If these options do not resolve your problem consider one of the following options e Protocol Filtering page 118 e Optimizing Wired Connections page 121 e Designing High Capacity Networks page 146 6 2 8 4 RTS CTS Medium Reservation It is normal behavior for SIMATIC NET IWL stations to defer transmissions automatically when they sense that another wireless device is using the wireless medium This behavior also referred to as the Carrier Sense Multiple Access Collision Avoidance protocol CSMA CA will avoid that wireless messages would collide in situations where two or more stations would start transmissions at the same time The RTS CTS medium reservation mechanism enables you to improve wireless performance in network environments where the CSMA CA Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 131 Eliminating Redundant Traffic protocol would fail due to the hidden station problem as pictured in Figure 24 The Hidden Station Problem Figure 24 The Hidden Station Problem RTS CTS medium reservation may provide a solution for networks where e The density of stations and Access Points RLMs is very low e You witness poor network performance due to excessive frame collisions at the Access Points RLMs 6 2 8 5 About the Hidden Station Problem A hidden station is a situation in which two wire
100. eferred transmission speed for your Access Point RLM broadcast traffic as forwarded by the Radio Link Module Where transmissions at lower data rates are usually more reliable you may prefer higher throughput performance over greater coverage for your wireless radio signal For more information about multicast rate refer to the help file of the RLM Manager program 196 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters 8 2 2 Bridge Parameters One of the ways to optimize the performance of your wireless networks is to prevent redundant traffic from being transmitted over the wireless network Redundant traffic may include e Specific network protocols exchanged by networking devices such as servers that are not relevant to the wireless stations e Broadcast and or multicast messages exchanged by specific networking devices such as servers that are not specifically addressed to the wireless stations e Junk traffic like for example error messages that are generated by malfunctioning devices or as the result of incorrect network configurations that could have been avoided for example closed network loops Filtering redundant traffic will save the bandwidth of the wireless medium for the wireless stations optimizing throughput efficiency for these stations Optimizing wireless performance via the Bridge tab can be achieved in the following ways e Protocol filterin
101. elated to a weak radio signal i e a station is out of range e Noise level to determine whether a poor SNR is related to a source of interference 6 2 8 2 IEEE Information The IEEE information on the IEEE 802 11 tab in the monitor mode allows you to track frame activity on the IEEE interface of the Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 127 Eliminating Redundant Traffic Figure 23 IEEE information tab System BridaeLeamTable IPARPTable Remote Interface SNMP ICMP TCP UDP IP IEEE 802 11 Transmitted Fragment Count 345 322 Multicast Transmitted Frame Count 24 575 Failed Count 0 Retry Count 421 Multiple Retry Count 6 Received Fragment Count 29 020 Multicast Received Frame Count 380 FCS Error Count 0 Totas C Rate C Totals from Print The three indicators that you should pay particular attention to are 128 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic Retry Count counts the number of frames that are lost due to collisions during the initial transmission During normal operation the Retry Count should be less than 3 of the Transmitted Fragment Count Multiple Retry Count counts the number of frames that are lost after the initial transmission During normal operation the Multiple Retry Count will be less than 3 of the Retry Count Failed Count counts
102. en the station determines whether it can start transmitting Roaming stations will start looking for connect to another RLM as soon as they leave the colored area belonging to a specific Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 151 Designing High Capacity Networks Figure 31 Medium Distance between APs 152 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Designing High Capacity Networks Figure 32 Small Distance between APs Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 153 7 71 An advantage of the IEEE 802 11 standard for wireless networks is that it gives a quick and easy way to connect your wireless station to a network For instance wireless stations that have been configured with the network name ANY will connect to the first IEEE 802 11 compatible Access Point RLM it can find within range 154 Security Introduction The drawback of this quick amp easy connectivity is the vulnerability of the LAN to unauthorized access Does this mean that Wireless LANs are not secure The answer is no Access to network resources is controlled via standard security mechanisms such as user names and passwords The Siemens SIMATIC NET Industrial Wireless LAN products allow you to apply additional security measures to restrict access to your wireless medium and or network resou
103. en you select Yes Upload Access Point RLM Software the RLM Manager program will 1 First save the Radio Link Module software file back to disk using the same filename i e the software file you opened will be overwritten 2 Next use the saved file to upload the target Radio Link Module When the RLM software file is saved to disk the Configuration Parameter Area of the software file is updated with the settings that were retrieved from the RLM or imported from the back up file cnf The Software Area of the RLM software file remains unchanged for more information see Upload Software a Look under the Hood page 261 As the Software Area remains unchanged overwriting the software file does not affect the functionality or the features of this software file 260 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Upload Software D 2 1 2 No do not Upload RLM Software When you select No do not Upload RLM Software the RLM Manager program will abort the upload operation If you would still like to upload the RLM software but hesitate to overwrite the original software file you are advised to make a back up copy of the original software file bin and save it to a separate floppy disk drive D 2 2 Upload Software a Look under the Hood Actually the Radio Link Module software file consists of two information areas that are both stored in the FlashROM of t
104. ence when the Access Point RLM should apply the RTS CTS mechanism For example e When a message is shorter than the RTS CTS medium reservation threshold the Access Point RLM will not initiate an RTS to the addressed station but use the CSMA CA protocol i e it will immediately transmit the message when it senses that the medium is free e When the length of a message exceeds the RTS CTS medium reservation threshold the Access Point RLM will first send an RTS to the addressed station and defer transmission until the addressed station has responded with a CTS message Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic All other stations will defer their transmissions for the duration of the radio silence time identified in the CTS message 6 2 8 7 Enabling RTS CTS Medium Reservation 1 Start the RLM Manager program select the Radio Link Module that services the wireless cell where you suspect poor performance caused by a hidden station problem and click the Edit button Select the Wireless Interfaces tab Choose the socket that contains the network interface that suffers from a hidden station Click the Advanced button Click the RTS CTS Medium Reservation check box In the Threshold field enter a value in the range of 0 to 2347 By default the RTS CTS medium reservation threshold is 2347 disabled which means that RTS CTS will not be used e n a
105. ers N Noise Level The Noise level is the level of local background noise as measured at the wireless interface of a Access Point RLM The Noise level counter reflects only the Noise Level value in of the latest frame that was received on the interface See also CP 1515 Link Test Non Unicast packets in The number of Non Unicast packets delivered to a higher protocol typically Multicast or Broadcast messages See also RLM Manager Remote Statistics Non Unicast packets out The number of packets requested by higher level protocols to be transmitted to a subnetwork unicast address typically Multicast or Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 281 O Broadcast messages This number includes the frames that were discarded or not sent See also RLM Manager Remote Statistics Out Collisions P The number of successfully transmitted frames on a particular interface for which transmission is inhibited by exactly one or more collisions plus the number of collisions detected on a particular interface later than 512 bit times into the transmission of a packet See also RLM Manager Remote Statistics Packets received lost 282 The Packets received lost counter displays the percentage of packets received relative to the number of packets expected The packets received lost counter is only displayed when you select the View Details option See also CP 1515 L
106. es as de scribed in Dual Channel Configuration page 138 or Multiple Channel Configuration page 140 6 2 9 Link Integrity In situations where the connection of the Access Point RLM to the rest of the Ethernet network fails typically as a result of a broken cable connection or network error the Ethernet failure might disrupt regular network communication for roaming wireless stations CAUTION This feature is only used if your network provides duplicate Ethernet connections If the wireless connection however is still intact the wireless station would not roam to another Access Point RLM since its radio might still interpret its physical connection to the Access Point RLM as good or acceptable The Ethernet link integrity feature is a high end solution that enables you to resolve this type of network failures as it a e Detect any disruption in its connection llows Access Points RLMs to o network services by testing the link between the RLM and a maximum of three IP hosts e Reconnect automatically to another Access Point RLM in situations where disruptions occur that are not re communications ated to poor radio 144 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic Figure 29 Link Integrity Window Edit Access Point configuration 192 168 1 71 153 69 254 200 For more information about link integrity re
107. ess Control page 159 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 155 Securing Access to Wireless Data 7 2 2 Closing the Wireless Network Closing the wireless network prevents unauthorized users from accessing the Access Point RLM within a specified SIMATIC NET Industrial Wireless LAN network If a user tries to access the network without configuring their station with the correct network name the station will not be able to bridge data on the RLM There are two options for this type of access security Open and Closed e The Open configuration is the standard IEEE 802 11 mode that will allow access to the Access Point RLM for all stations with the correct network name all stations with the network name set to ANY e The Closed configuration is the Siemens SIMATIC NET Industrial Wireless LAN proprietary mode that closes your network to all stations that have not been programmed with the correct network name This option will deny access to all SIMATIC NET IWL stations with the network name set to ANY and all non SIMATIC NET IWL stations with a zero string SSID or ANY as network name NOTE The Closed option is not compliant with the IEEE 802 11 standard for wireless LANs 156 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access to Wireless Data To close your network proce
108. ess LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic For example looking at Multiple Channel Configuration page 140 to set up a three channel system you could configure the Access Points RLMs as follows e All Access Points RLMs identified as operating on channel A would use channel 1 2412 MHz e All Access Points RLMs identified as operating on channel B would use channel 6 2437 MHz e All Access Points RLMs identified as operating on channel C would use channel 11 2462 MHz This would just meet the minimum channel separation of 25 MHz for neighboring Radio Link Modules that is recommended for optimal operation A station roaming from location X to location Y would automatically switch its radio consecutively from channel A B to C to remain connected to the network When your network includes RLM devices you can use the RLM in combination with two PC Cards CP 1515 to create overlapping cells for maximum throughput performance In that case you must assign different frequency channels to each card with a separation of 25 MHz or more to avoid cross talk between the two cards 6 2 811 Configuring Channel Frequency To change the frequency of your Access Point RLM proceed as follows 1 Connect to the RLM by opening the RLM Manager selecting the target Access Point RLM and click the Edit button 2 Select the Wireless Interfaces tab Industrial Ethernet Wireless LAN RLM Manage
109. eteeetnneees 220 Modifying the Configuration R 226 Changing Common Parameters cccccececececeeeeeeeeeeeeneeeeeeneseeenneeeeesea 227 Restoring a Back up Configuration ccc ccccececeesseeeesseeeeeessseees 228 Dual PC Card Configuratie aa e ia 229 About IP Addresses and Subnets ccccceccceeeeeeeeteeeeteetteeeneens 229 BOOTP and DACP A EE A pevinlde tes etiasecgiee ass 231 Start up Configuration MTOGUCTION Stet eet ek batt een eerste cat ees ea hE hae 232 Factory Set Configuration sys n eiren a a Ee 233 Troubleshooting NOdUCTIOM sena p a a a a OES 236 Problem Solving Approach e aa eatin 236 Rebooting REMS vi sseccveses aneia a E E A A 241 anual Reboot Remote Rebot aone eset eee eee E aan ee 243 Forced Reload Procedure NUTOGUGCUION cer tte knee tn ets de a tas Det ede A cathe ta pda Soa 8 les 244 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 RNS IND BRWN gt moog 09 999990 ET ETAs w K gt PRE o A NNN N Doing a Forced Reload rmi yryrarni nnne ea 246 Step 1 Preparations ees Step 2 Set to Forced Reload Mode 249 Step 3 Configuring and Uploading Files 250 Creating a Back up FE ea 7 econ abe sencna tne A a S A 257 Upgrading the RLM Software About the RLM Software ccccccccseceeeeeeeeeeceeeesereeesneeseneeesnseeeaes Upload Softwa Sas ai a e due iean N Confirm Upload RLM Software
110. fects on the performance of your network Document the configuration settings of your network in detail to avoid configuration mismatches Therefore we recommend that you create a template file that contains all of the common parameter settings that apply to every Access Point RLM within the network 218 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Large Networks 8 31 Common Parameters Common parameters such as the network name or SNMP Read Write Password are used to identify which Radio Link Modules belong to the same network environment They differentiate your group of RLMs from other neighboring network environments A list of common parameters is shown in Table 7 Common RLM Parameters below together with the RLM Manager tabs where you can view or modify the parameters Table 7 Common RLM Parameters Parameter RLM Manager tab e Network Name Wireless Interfaces e Protocols to Filter Bridge e MAC Filtering e Radio Link Module Subnet Mask Access Point IP e Default Router IP e Default TTL e Read Password SNMP e Read Write Password e SNMP IP Access List e optional Trap Host IP Address and Password Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 219 Configuring Large Networks 8 3 2 Unique Parameters Unique parameters such as the IP Address or System Name are used to differentiate a single Radio Link M
111. fer to the help file of the RLM Manager program Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 145 Designing High Capacity Networks 6 3 Designing High Capacity Networks In networking environments where you have either data intensive users or a large number of users in a small area you may wish to improve the throughput efficiency and or load balancing of your Access Points RLMs This solution described in this section allows you to balance maximum range for minimum hardware investments versus maximum throughput performance for higher hardware investments 6 31 About the CSMA CA Protocol 146 In normal network configurations all equipped devices apply a standard mechanism to avoid collision of wireless messages When a station intends transmitting a message it will first sense whether no other station is already transmitting using the wireless medium e f no other transmissions are sensed the station will start its transmission e If it does sense another transmission carrier the station will apply a random defer timer After the timer has expired it will start sensing the medium again to see if it can start transmitting This protocol also referred to as the Carrier Sense Multiple Access Collision Avoidance CSMA CA protocol works fine in most networking environments The user of a wireless computing device will hardly notice the deferral behavior of the w
112. fied Max Age value Changes in the Spanning Tree topology must be communicated to all bridges in the bridged network The Forward Delay timer will Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 compensate for the propagation delays that occur in passing the protocol information allowing all bridges to close the old data paths before the new data paths are activated Recommended value 15 seconds H Hello Time A Spanning Tree parameter that identifies the time interval between Configuration BPDU messages as transmitted by a root bridge or a bridge that is attempting to become the root bridge Recommended value 2 seconds Initiator Station The remote Access Point RLM device that you selected to initiate a Remote Link Test with a wireless station connected to the selected Radio Link Module The Remote Link Test Partner can either be a wireless station or another RLM unit Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 277 IP Address The Internet Protocol IP address is a unique addressing code for computing devices When your network already uses IP addressing you must change the factory set IP address to a value selected from the range of IP addresses assigned to your organization K Kernel See Firmware L LAN Segment A logical area within a network that is connected with other areas via a bridge For Radio Li
113. following a The RLMs equipped with network interfaces that are set to Forced Reload mode can not be accessed via the SIMATIC NET IWL network interface b Do not do a Forced Reload procedure for more than one Radio Link Module simultaneously Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Introduction You might risk unexpected administrative problems due to configuring multiple units with an identical configuration image and IP address When in Forced Reload Mode the RLM will stop bridging operation The Access Point RLM is only capable of accepting a new software image to be programmed into the FlashROM To access the Radio Link Module in forced reload mode you may need to reconfigure your LAN administrator station If your RLM is equipped withCP 1515 cards you may wish to do the forced reload using a configuration scenario as described in Setting Up your LAN Administrator Station see either Figure 6 Wired Access via a Network Connection or Figure 8 Wireless Access via an Indirect Connection Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 245 Doing a Forced Reload C 2 Doing a Forced Reload A forced reload procedure consists of three steps 1 Step 1 Preparations 2 Step 2 Set to Forced Reload Mode 3 Step 3 Configuring and Uploading Files One additional step is optional but recommended 4 Creating a Back
114. for initial connection to network Network Name the network named Network Name can not be found For more detailed information use the monitoring methods as described in Monitoring Methods page 71 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 73 Using the CP 1515 Manager From the main CP 1515 Manager window as pictured in Figure 13 Main CP 1515 Manager Window you will also have access to a number of menu items These menus are described in the next paragraphs If you are having problems connecting to the network e Click the Help button or press F1 for troubleshooting hints e Refer to B Troubleshooting for possible solutions 5 2 2 Link Test Window 74 You can use the link test mode to do detailed diagnostic measurements in indoor wireless environments between your CP 1515 Manager station and one specific test partner Subject to the type of wireless network to which your CP 1515 Manager station is connected the test partner may be either one of the following e The RLM when your CP 1515 Manager station is connected to an Infrastructure Network see chapter 2 Wireless Configurations In this type of network you will not be able to select another link test partner when roaming throughout the wireless network environment the link test partner may change dynamically whenever another RLM provides better communications quality e The wireless station when your CP 1515 Man
115. g to deny specific networking protocols from being bridged to the wireless network interface see Protocol Filtering page 200 e Filtering traffic exchanged between two specific stations that are identified by their static MAC address see Static MAC Address Filter page 202 e Enabling the spanning tree mechanism to resolve the closed network loops errors see Spanning Tree page 203 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 197 Advanced Parameters e Storm threshold filtering to limit the number of messages per port and or station from being bridged see Storm Threshold page 205 A N CAUTION The Bridge parameter settings are typical common parameters i e the Bridge parameter settings should be the same for all Access Point RLMs 198 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters Figure 36 Bridge Tab in the Edit Mode Edit Access Point configuration 192 168 1_71 Access Control Link Integrity Ethernet Interface l Wireless Interfaces Access Point IP SNMP Bridge m Protocols to Filter Static MAC address Filter Wired Wireless lt None gt Add Delete Edit Storm Thresholds Cancel Help To set the Bridge parameters connect to the Access Point RLM and select the Bridge tab to display the bridge parameters as pictured in Figure 36 Bridge Tab in the Edit Mode
116. gain allowing access only to those users that have been configured with exactly the same network name as identified in the setup of your Access Point RLMs Repeat steps 1 through 9 for all other Access Points RLMs 7 2 3 Access Control Another method to restrict wireless access to the Radio Link Module is to use the access control table feature and or the RADIUS Server Access Control feature If you decide to enable the access control table feature your RLMs will e only bridge messages to from authorized stations that have been identified in the access control table e ignore all requests to forward data to from non listed SIMATIC NET Industrial Wireless LAN stations Enabling access control is a more rigid security mechanism than Closing the Wireless Network as it requires the LAN administrators to authorize each individual Wireless LAN station Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 159 Securing Access to Wireless Data To authorize wireless stations to access the network the LAN administrator s must e append the unique universal MAC address of the Wireless LAN station to the access control table file tbl and e upload the access control table file to all RLMs j NOTE The access control feature does not work in network environments that require local MAC addressing If you decide to enable RADIUS Access Control you can e Specify the lifet
117. ghboring networks have been closed to deny wireless compliant devices to establish a radio connection when these devices have been configured with a The network name ANY or b A zero string SSID the equivalent of the network name ANY For more information about open and closed networks please consult Security page 154 5 2 3 6 Log Settings Tab You can record the Site Monitor measurement results to a log file and use this log file to more fully analyze the overall wireless coverage of your network The measurement data can be logged automatically at regular intervals or manually upon usercommand For more information on log files see 5 2 4 Logging Measurement Data 5 2 3 7 AP Names Tab 1 90 The AP names tab enables you to create a userdefined list of RLM names associated with the MAC address of the wireless network interface s of your Access Points RLMs The field AP name in the Site Monitor window will display the value of the System Name parameter that has been assigned to the Access Point RLM upon configuration To assign a system name to the Access Point RLM you will need the RLM Manager program specify this name in the SNMP Parameters window as pictured in Figure 41 Setup SNMP parameters Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager To display this name it is required that your computer first establishes tr
118. hat have been entered in the corresponding fields of the SNMP tab in the edit mode when the Access Point RLM was configured If you would like to change these names please consult the section about configuring SNMP parameters as described in SNMP Parameters page 211 The Up Time field displays the time interval measured from the last time the Radio Link Module was reset If the up time is lower than expected the RLM may have been reset manually or rebooted automatically The fields Services and Object ID do not display relevant information to end users You will need these values and the contents of the Description field only when contacting Technical Support to report a problem Providing this information to your Technical Support representative will help to determine the cause of the problem To do so you can either Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 101 Using the RLM Manager 102 Use the Print button to print the information to paper that you will fax to your Technical Support together or Press the keys ALT and Print Sern simultaneously to copy the contents of this screen to the Windows clipboard and paste the screen capture into the e mail that you will send to your Technical Support The field Description is the most important field of this screen It allows you to quickly determine whether the Access Point RLM is running with the latest embedded software or mig
119. he Radio Link Module Bridge 1 The actual software program area The data in this area can not be configured by the end user 2 The Configuration Parameters area that contains user defined settings of the Radio Link Module The data in this area can be modified at any moment when you use the RLM Manager program to open and save a remote config file What actually happens in the procedure to upload Radio Link Module software is that the RLM Manager program will merge the configuration parameters retrieved from the RLM with the software information from the RLM software file bin These will be saved to disk first prior to uploading the information into the RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 261 E Further Support E1 Who to contact If you have technical questions about using the described product and your problem is not dealt with in the documentation or in the integrated help system please contact your Siemens representative or dealer You will find the addresses e in our catalog IK PI or CA01 e on the Web http www siemens com simatic net 262 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Automation and Drives Service amp Support E 2 Automation and Drives Service amp Support Service amp Support from A amp D is available round the clock worldwide The languages spoken are German and English French Italian and Sp
120. he local list or enter the IP address of the Access Point RLM that you wish to monitor Alternatively you can select Refresh Radio Link Module List from the RLM menu to display all Access Points RLMs available in your subnet j NOTE Only Access Points RLMs in the same subnet as the management station are displayed in the list To investigate a link outside of the subnet enter the specific IP address in the Enter the IP address of a specific Access Point RLM field 3 Click Monitor to connect to the target Radio Link Module 4 The monitor mode of the RLM Manager window is displayed as pictured in Figure 18 System Information Window Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 99 Using the RLM Manager You can now monitor your network Figure 18 System Information Window Monitor Access Point 153 69 254 253 100 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager 5 3 3 System Information The system information does not provide on line statistics but is primarily used to verify the version level of the embedded software that is loaded into the Access Point RLM To display the system information for the RLM you must first connect to the target RLM see Connecting to Access Points RLMs page 99 Select the System tab to view the system information The fields Name Location and Contact represent the values t
121. he network and or the configuration is not read or if the wrong password is entered the message Invalid password appears Click OK to return to the main RLM Manager window and try again You are now ready to change the RLM configuration settings 4 2 1 4 Step 3 Set Network Name and Save Configuration When installing the SIMATIC NET Industrial Wireless LAN network you are advised to modify the default settings of the wireless network interfaces Although the Radio Link Module will work fine with its factory set values changing the parameters to unique values will differentiate your network from possible neighboring networks 1 Select the tab Wireless Interfaces see Figure 12 RLM Manager Wireless Interfaces tab 2 Choose the slot of the RLM PC Card slot A or B that contains the PC Card that you wish to configure Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 63 Configuring Infrastructure Networks Figure 12 RLM Manager Wireless Interfaces tab AP Manager 135 85 192 86 x Bridge Access Control Link Integrity Wireless Interfaces Access Point IP SNMP PC card slot A Network Name N Your Company Network Name PC card slot B There is no PC card in this slot Cancel Help 3 Enter the identification designator in the field Network Name for the service type that this interface should use The network name can be any alphanumeric st
122. he specific LAN Green interface This activity is typically Off Flicker caused by the LAN administrator Green station that is performing the forced reload e Proceed with the forced reload procedure as described in C Forced Reload Procedure of this Manual Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 239 Introduction Red General hardware failure e Reboot the RLM as described in this Appendix e f the problem persists contact Siemens technical support Amber Ethernet hardware failure e Reboot the RLM as described in this Appendix e f the problem persists contact Siemens technical support Amber Amber SIMATIC NET IWL hardware failure e Reboot the RLM as described in this Appendix e f the problem persists contact Siemens technical support Off Amber If the CP 1515 is broken which can be tested by inserting the card into the SIMATIC NET IWL computer return the card to your authorized reseller 240 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Rebooting RLMs B 2 Rebooting RLMs If a particular Radio Link Module has stopped responding to normal bridging requests you can reboot reset the Access Point RLM You can reboot RLMs either manually on the spot or remotely Upon reboot the Radio Link Module will run the start up diagnostics and
123. hecks at regular intervals show a performance degradation In this chapter we recommend various solutions to some of the most commonly reported problems CAUTION Create separate backup files of the configuration data for each Access Point RLM before you start changing the configuration s Doing so will enable you to restore the initial setup of your network in case corrective actions did not result in the desired effect Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic 6 2 Eliminating Redundant Traffic Data transmitted via your network can be divided in two major types of data e True Data is data communicated between network stations such as file transfer or e mail This True Data usually referred to as payload also includes messages that were retransmitted one or multiple times as a result of a collision malfunctioning cable connection or poor radio link In the RLM Manager Remote tab in the monitoring mode the True Data is displayed as Unicast Packets e Network Overhead Data is data exchanged between network services to control the dataflow This overhead data that usually referred to as traffic load includes protocol and broadcast messages and or error messages that result from a configuration mismatch In the RLM Manager Remote tab in the monitoring mode the Network Overhead Data is displayed as Non Unicast Packets
124. hen the CD Browser automatically starts you can proceed with the next step If not e Click the Start button on the Windows task bar then select Run e Click the Browse button in the Run window e Select the drive letter of your CD ROM player then select the file setup exe and click the Open button e Click the OK button in the Run window The CD Browser will start up 3 Click on Install RLM CP 1515 Manager 4 Click on Install CP 1515 Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Installing SIMATIC NET IWL Software 5 Follow the instructions on your screen If not available yet a special Siemens group in the Windows Programs menu will be created This group will provide access to the CP 1515 Manager j NOTE Previously installed versions of the CP 1515 Manager program will automatically be replaced During the installation you will be prompted for a directory to install the program files The default directory for the CP 1515 Manager program is C Programs Siemens Gate Clientmanager Throughout this manual we make references to a variety of files Unless otherwise specified you will find these files in this default directory 3 5 2 RLM Manager The RLM Manager can be installed on both wireless and wired stations To install the program you will need to select a station that is configured with e Network Interface Card NIC to con
125. his might be caused by many retransmitted frames but it could also refer to many stations trying to communicate at the same time You can also use the RLM Manager remote link test to analyze whether one or more stations show a poor link quality e When the poor link quality is caused by a low signal level the station is almost out of range of the Access Point RLM e When the poor link quality is caused by a high noise level there is a source of interference in the signal path between the station and the Radio Link Module When one or more stations show a poor link quality re transmissions of frames will disturb overall statistics and performance e You may be able to solve the problem by either moving the station s or eliminating the source of interference e If the problem is a poor signal you may consider Connecting a range extending antenna to the station or access point that suffers from poor radio performance Adding an extra Access Point RLM to the network or Adjusting the placement of your Access Points RLMs to provide coverage for all wireless stations Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic e f you suspect a hidden station see RTS CTS Medium Reservation page 131 j NOTE You can also use the CP 1515 Manager to analyze the link quality between a remote station and the Access Point RLM In that case you will n
126. ht require an upgrade to support all the SIMATIC NET IWL functionalities required The Description field contains a set of strings to identify The type of networking device The type and version of the embedded software that is loaded into this Access Point RLM The value can be VX xx to identify software that supports access point services only The character string of the format SN xxUTxxxxxxxx represents the unique serial number of the RLM The last string of characters of the format VX xx identify the version of the RLM hardware in its processor module NOTE Updates for the embedded software of the Access Points RLMs are usually released via the MOBIC web site http www siemens com mobic and with new releases on the software CDs Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager You are advised to consult the MOBIC web site at regular intervals to find out whether newer software is available for your Access Points RLMs 5 3 4 Remote Link Test Window The RLM Manager remote link test enables you to investigate the radio link between the Access Point RLM of your choice the initiator station and a station connected to the selected RLM This station can be a wireless station connected to the selected RLM j NOTE The remote link test works only in combination with SIMATIC NET Radio Link Modules RLM The userin
127. ial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuration Scenarios e The scenario pictured in Figure 7 Wireless Access via a Direct Connection will be most convenient when configuring multiple out of the box Access Points RLMs sequentially e The scenario pictured in Figure 8 Wireless Access via an Indirect Connection will be most efficient when adding new Access Points RLMs to an existing network or when you are not within range of the target Access Point RLM In both scenarios the Access Points RLMs are identified by means of their unique IP address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 53 Uninstalling SIMATIC NET IWL Software 3 7 Uninstalling SIMATIC NET IWL Software If you wish to remove the SIMATIC NET Industrial Wireless LAN software from the LAN administrator station you can use the Add Remove function of your Windows operating system To uninstall SIMATIC NET Industrial Wireless LAN software 1 2 3 On the Windows taskbar click the Start button Click on Settings and then Control Panel On the Control Panel window double click the Add Remove Programs icon Select the program that you wish to uninstall and click the Add Remove button The Add Remove option will remove program files only If you have stored log files in the program files directory these files will not be removed 54 Industrial Ether
128. ication The products of SIMATIC NET are manufactured and marketed using a quality management system complying with DIN ISO 9001 and certified by DOS certificate registration no 2613 The DOS certificate is recognized in all I ONet countries Reg No 2613 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 267 Glossary A Access Control A security feature for RLM that enables you to restrict wireless access to a access point to authorized stations only Authorized stations are identified by the MAC address of their SIMATIC NET IWL PC Card in a so called Access Control Table file that is loaded into the SIMATIC NET IWL access points as part of the configuration When Access Control is enabled the Radio Link Module will ignore all requests to forward data to from SIMATIC NET IWL devices that are not identified in the Access Control Table You can create or edit Access Control Table files using either the RLM Manager or the CP 1515 program Access Control Table ASCII table that contains all the MAC Addresses of stations authorized to send receive data via the Radio Link Module To build an Access Control Table you can use the RLM Manager program 268 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 The Access Control Table is loaded into the Radio Link Module as part of an configuration upload Analysis Polling interval B A parameter that enables y
129. ignal level and noise level indicators may help you investigate the cause e Allow signal level indicates that the strength of the radio signal is fairly low i e your SIMATIC NET IWL CP 1515 Manager station is almost out of range of its link test partner Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 77 Using the CP 1515 Manager e Ahigh noise level indicates a source of radio interference in the radio path between the two link test partners Comparing the values for your station and the link test partner will help you to identify the location where the interference occurs and investigate whether any actions to eliminate or remedy the source interference resulted in a better performance 5 2 21 2 Received Messages 78 The indicator Received Messages provides a way to determine the efficiency of the radio path between your CP 1515 Manager station and the link test partner When running a link test your SIMATIC NET IWL CP 1515 Manager station will exchange messages with its test partner The test partner will confirm proper receipt by returning an acknowledgment response Both your wireless station and the link test partner will use these messages to e Measure the signal to noise ratio SNR e Compare the total number of messages sent to the number of messages received When the communications quality is rated as Excellent or Good the total number of l
130. iguration Table 10 Start up Configuration Interface Wireless Interface Network Name WaveLAN Network RF Channel 2 462 MHz Closed wireless Disabled system Encryption Disabled Medium reservation Disabled Microwave oven Disabled robustness support DTIM period 1 Distance between _ Large APs Multicast rate 2 Mbit s 234 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Factory set Configuration Table 11 Access Point Configuration Record Access Point Configuration Record Wireless Network Access Control SNMP Network Name Access Control Enabled System Location Table File Name IP Subnet Mask RADIUS server Enabled Read Password Read Write Password Common Parameters Serial Number MAC Address IP Address IF Frequency Device Location Date Installed OE OA 0B OE OA OB OE OA OB OE OA OB OE OA OB OE OA OB OE OA OB OE OA OB OE OA OB Configuration File Access Point Unique Identifiers Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 235 B Troubleshooting B1 Introduction Problems experienced in wireless LAN operation can be related to e Configuration mismatch e Component failure e Wired or wireless network problems B11 Problem solving Approach To resolve a configuration mism
131. ime of a granted authorization e Set the authorization password e Assign up to two RADIUS servers for validating the MAC address of wireless stations To enable RADIUS Server Access Control refer to Enabling RADIUS Server Access Control page 165 7 2 4 Enabling Access Control To enable access control you will first need to create an access control table file tbl using the RLM Manager program You can upload the access control table file into all Radio Link Modules in your network as part of a new configuration see Importing an Access Control Table page 163 for more information 160 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access to Wireless Data 7 2 5 Creating Editing an Access Control Table To create or edit the access control table 1 Start the RLM Manager and select the Radio Link Module 2 Click the Edit button 3 Select the Access Control tab 4 Click the Edit button to display all MAC addresses that are currently authorized as pictured in Figure 34 Setup Access Control By default access control is set to lt All will be permitted gt i e there are currently no access restrictions defined 5 Use the following buttons to modify the MAC address table Add to add MAC addresses one at a time You can also use the Comments field to enter a name or add a comment about the listed MAC address Edit to change entries in the table Delete to rem
132. ined Access Point RLM names for easy identification of Access Points RLMs in the Site Monitor window see AP Names Tab page 90 j NOTE The Site Monitor option only works in combination with Access Points RLMs When you select this option in a Peer to Peer workgroup environment the Site Monitor window will not start 1 Independent networks never include Access Points RLMs see also chapter 2 Wireless Configurations 82 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager with the Site Monitor tab but will start with the Selection tab described on Selection Tab page 86 5 2 3 2 Site Monitor Tab When you open the Site Monitor window this will display the window pictured in Figure 15 Site Monitor window Figure 15 Site Monitor window Client Manager Site Monitor Network name Your Company Network Name Distance betweeen APs Large t iS Selection Site Monitor Log Settings AP names MAC address JP rame be z 00601D1E1F3F Access Point Floor2 00601D1E1F46 Access Point Floor 3 i a 00601D1E1F31 Access Point Floorl i A E 00601D1E1F50 Access Point Floor 4 fl I ls Sort on MAC address g Cancel Help Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 83 Using the CP 1515 Manager 84 Displayed across the top of the Site Monitor window are the following fie
133. inistrator as pictured in Figure 41 Setup SNMP parameters 8 2 4 4 System Name Use the field System Name field to enter a generic logical location of the Access Point RLM e g Incoming Goods Department as in Figure 41 Setup SNMP parameters 8 2 4 5 System Location Use the field System Location to enter a generic physical location of the Radio Link Module e g Access Point RLM floor 1N as in Figure 41 Setup SNMP parameters 8 2 4 6 Trap Host IP Address If you plan to use the trap alert system as described on Trap Host Alerts page 180 you can use the Trap Host IP Address field to enter the address of the network management station that should collect the SNMP trap messages If you do not intend to use trap host alerts the value is set to Don t care For more detailed information about trap host messages see Trap Host Alerts page 180 214 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters 8 2 4 7 Trap Host Password Use the Trap Host Password field to enter a password that will be included in the SNMP trap messages You can use this password at the trap host station to filter out trap messages that may have been sent to the trap host station erroneously 8 2 4 8 SNMP IP Access List You can use the SNMP IP Access List to create an extra level of security in addition to the read an read write passwords This will allow you to authorize a limited
134. ink Modules and SIMATIC NET IWL devices in the network environment must use the same encryption key The encryption key consists of 16 hexadecimal numbers in the range 0 9 A F The second digit of each pair must be even 0 2 4 6 8 A C E Enterprise wide Network 274 A network configuration that has the scale of a corporate LAN This type of network may include network segments in different departments interconnected by means of bridges and routers When the network comprises gateways routers or bridges each network device must be identified by a unique IP address The network may extend to wireless networking in different buildings where the buildings are connected by a wired link e g a leased line Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 F Filter Aging Time Radio Link Modules maintain dynamic lists to identify the interface where they last spotted a SIMATIC NET IWL station either the Ethernet interface or SIMATIC NET IWL interface A or B When the RLM receives a packet addressed to a specific station this list will help to determine to which interface the packet should be bridged When mobile stations roam between multiple cells this table will be updated automatically When there is no traffic from or to a specific station for a longer period of time for example when a station was shut down the Filter Aging Time determines how long the access point will remember
135. ink Test Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Path cost An advanced Bridge Setup parameter for Radio Link Module that is used to determine the preferred data paths between bridges throughout the network and the root bridge as calculated by the Spanning Tree Algorithm The Root Bridge transmits BPDU messages throughout the Local Area Network When a bridge unit receives a BPDU message at one of its ports it will add the value in the Path Cost field for that port to the value in the root path cost field of the BPDU message prior to forwarding the message again This will help the other bridges to determine the Total Path Cost to the Root Bridge via this port A lower Path Cost value would typically be used for ports to LAN segments closer to the Root Bridge A higher Path Cost value would typically be used for ports to LAN segments that are the leafs of the Spanning Tree For example when you use the Access Point RLM as an access point for wireless stations to the Ethernet a high Path Cost for the SIMATIC NET IWL port will minimize unnecessary use of the bandwidth for the wireless medium recommended value 500 Peer to Peer Workgroup A stand alone workgroup of wireless stations which participate in a small Peer to Peer network This is typically a SIMATIC NET IWL network configuration without RLMs that could connect the stations into a
136. inutes Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 287 SNMP Trap Messages SNMP trap messages are part of the trap host mechanism which can be used to inform a network administrator when somebody resets a Access Point RLM unit loads a new configuration into the access point or performs a forced reload procedure The trap host alert message will enable the network administrator to verify whether this was an authorized action or not To receive the Trap Alert messages the management station needs to have a standard Trap Host Agent installed to handle the trap messages SNR Signal to Noise Ratio The Signal to Noise Ratio SNR is the primary diagnostic counter to diagnose wireless performance The SNR indicates the relative strength of the received Signal Level compared to The Local Noise Level Spanning Tree An advanced Bridge setup option for complex network topologies that enables you to enhance data traffic efficiency and eliminate the possibility of data loops 288 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 With the spanning tree algorithm all bridges on the LAN exchange special configuration messages that allow them to m Elect a single bridge among all bridges in the connected LAN segments to be the root bridge Calculate the distance of the shortest path to the Root Bridge E Elect a Designated Bridge in each LAN segment th
137. ion settings in all tabs Refer to Basic Network Configuration page 55 for changing the configuration settings 9 Click the Upload button to upload the new configuration settings to the Access Point RLM in force reload mode The message Please wait while trying to connect to the RLM appears While trying to connect to the Radio Link Module the IP address in the configuration settings is pinged e Only if the IP address specified in the configuration already exists you are prompted to enter a new IP address If the IP address does not yet exists the uploading continues e Because the password of the RLM in forced reload mode is always public you do not have to enter this password before uploading information to the Access Point RLM 10 When prompted to confirm the Reload of the Remote System click Yes to continue Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 255 Doing a Forced Reload 256 11 The local software file wpntxxx bin will now import the configuration settings and save these to the software binary file The software file will now be overwritten by the new software file This does not influence the functionality of the software file For more information see Upload Software a Look under the Hood page 261 When you want to preserve the original software file make a back up copy of this file You are again prompted to confirm the Reload of the
138. ireless Data Encryption To provide the highest level of security to wireless data transmitted via your wireless network you can use the Wired Equivalent Privacy WEP data encryption To use WEP data encryption in your network you need All wireless stations and access points must be equipped with CP 1515 cards All devices must be configured with matching WEP encryption key values WEP data encryption uses 13 character encryption keys based on the RC4 encryption algorithm that will be used to encrypt decrypt all data transmitted via the wireless interface You can specify up to 4 different keys to decrypt wireless data and select one of the specified decryption key values to encrypt wireless data The option to use 4 different keys for decrypting wireless data allows you to change your WEP keys at regular intervals without affecting regular network performance see also Maintaining WEP Encryption Keys page 183 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 167 Wireless Data Encryption 7 31 Enabling WEP Encryption To enable WEP encryption you will need to ensure that e All wireless devices have been equipped with CP 1515 cards e All wireless devices will be configured with matching encryption key values You are advised to use the Radio Link Module configuration log to write down the proposed WEP key values and store the information in a safe place 168 Industrial
139. ireless radio In network environments with many wireless users in the vicinity of one another and or wireless stations that are engaged in heavy data traffic you Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Designing High Capacity Networks may perceive that wireless stations show a degrading performance perceived as long network response times when communicating via the network Where poor performance is typically caused by poor radio link quality identified by a poor signal to noise ratio SNR the scenario described above may also be perceived in areas where e Site monitor measurements show an excellent wireless coverage by at least two Access Points RLMs or more on every location e Link test measurements at such locations may show An excellent SNR for communications between wireless stations and the Radio Link Module A large number of messages transmitted at lower rates In this type of situations the disappointing network performance might be caused by the busy wireless traffic in that area where the CSMA CA protocol causes the wireless stations to defer transmissions to often for either e Heavy data traffic by other stations in the same wireless cell e Traffic from stations in neighboring cells where stations in a location where wireless cells overlap one another seem to suffer more than the other stations The last example would typically occur only in netwo
140. itiator stations network via a low speed connection e g a dial up modem connection 114 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager 5 3 6 2 Adjusting SNMP Polling Interval The data displayed in the Remote tab refreshes at regular intervals that can vary between 1 second and 5 minutes Adjust the refresh rate by changing the SNMP polling interval e Use a short interval 1 second when you want to monitor remote statistics on line e g in case of troubleshooting and or when you have full bandwidth access to the RLM via the local network e Use a long interval 5 minutes when you run remote statistics only for background display purposes in cases when you access the network of the selected Radio Link Module via a low speed connection for example a dial up modem connection Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 115 6 Optimizing Performance 6 1 Introduction 116 The performance of your LAN is usually determined by a complex combination of different factors This section will present a number of considerations that may help you to e Determine whether optimization is really needed e Tailor your SIMATIC NET IWL network to optimize its performance Consider optimizing network performance in these situations e You are troubleshooting a suspected problem e LAN performance is less then expected or e Routine c
141. ive each others messages also via the wired network To filter out traffic between such devices add the MAC addresses of both devices as a pair in the Static MAC address Filter list The way the filter works is that when one of the listed stations sends a message to a MAC address that has been identified as a pair the Access Point RLM will not forward it via the wireless station All traffic that one of 202 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters the stations wishes to send to any other non paired MAC address will be forwarded For more information about static MAC address filtering please refer to Optimizing Performance page 116 8 2 2 3 Spanning Tree The Spanning Tree button allows you to set parameters that are used in determining the optimum path for network traffic to travel You can use spanning tree in a network that has been designed to include loops such as a redundant wired link used as a back up to the main wireless link Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 203 Advanced Parameters Figure 38 Spanning Tree Setup window Edit Access Point configuration 192 168 1 71 Access Control Link Integrity Ethernet Interface Wireless Interfaces Access PointIP SNMP Bridge Edit Spanning Tree Setup x Bridge Priority 22768 Maige fo m Static MAC address Fiter Hello Time ez fi Ma Fo
142. k 070 RLM Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Managing Infrastructure Networks Your next consideration for wired or wireless station should be the size of your network For instance e in larger networks it may be more convenient to manage the stations rom a central location so a wired station would be more appropriate e in smaller network configurations in which there are only few Access Points RLMs a mobile wireless station may be the most efficient way o configure and manage your network For wireless stations the following has to be considered e LAN administrators require easy access to wireless areas e g for on site roubleshooting e You need to do a site verification to determine optimal placement of Access Points RLMs e It is also possible remote configure and monitor the Access Point RLM via a dial up connection This feature is only possible when the network is externally accessible via a router Of course you can assign multiple stations as LAN administrator stations allowing for a combination of wired and wireless stations and allowing you the freedom to choose the most appropriate tool for the situation 3 411 Wired Stations A wired LAN administrator station allows you to configure and monitor Access Points RLMs through a wired backbone by using the RLM Manager tool Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C7
143. k Module for the very first time these values should match the values listed in Table 9 Start up Configuration RLM For normal operation these values should match the ones you identified when configuring the RLM unit You are advised to record this information on the Access Point Configuration Record in this appendix 232 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Factory set Configuration A 2 Factory set Configuration Table 9 Start up Configuration RLM RLM Parameters Access Point IP tao Obtain an IP address from Enabled DHCP server Default TTL 64 SNMP tab Read Password public Read Write Password public System Name XXX XXXXXXXX Trap Host IP address 0 0 0 0 2 Trap Host Password public SNMP IP Access List lt All will be permitted gt Bridge tab Protocols to Filter lt none gt Static MAC address Filter lt none gt Spanning Tree disabled Storm Thresholds disabled Access Control tab Static Access Control lt All will be permitted gt RADIUS Server Access Control Disabled Link Integrity tab Link Integrity Disabled 1 Ethernet MAC address of the device printed on a small label on the processor module 2 No SNMP traps are sent with this IP address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Factory set Conf
144. ldn t be able to interpret the encrypted beacon messages For optimal security against unauthorized access to your network you are advised always to leave the Deny non encrypted data option enabled default 172 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Wireless Data Encryption CAUTION Only when you would have good reasons to decide otherwise you could clear this check box to allow the RLM to communicate with wireless stations that either support WEP encryption or not or have the WEP encryption enabled or disabled Please read the information described in the following section prior to clearing the Deny non encrypted Data tick box 73 1 4 How WEP Encryption works The IEEE easy to u combine 802 11 standard on wireless LANs was designed to provide an se and easy to install wireless network that would allow users to wireless LAN products from different vendors The drawback of easy access and interoperability is the vulnerability to unauthori zed access to and or use of your network Although WEP encryption provides a good way to secure access to your wireless data there are the right When yo e Enab e Enab a few things you need to know to ensure your network provides evel of security u enable WEP encryption there are two modes of WEP operation e encryption amp deny non encrypted data e encryption amp allow non encrypted data For optimal security yo
145. lds e Current Network SSID which identifies the name of the network to which you are currently connected e Distance between APs describes the RLM density setting of the network to which you are currently connected These fields will remain visible when selecting any of the other options in the Site Monitor window Also displayed in the Site Monitor window are all Access Points RLMs that e Belong to the same Infrastructure as the one to which you are currently connected and e Are within range of your CP 1515 Manager station In the site monitor mode you can customize the selection of site monitor parameters to satisfy your personal preferences as described on Customizing the Site Monitor Display page 85 The recommended selection for standard site survey procedures is as follows e AP name RLM name to identify devices by the name of the RLM This name is identified either in The System Name field of the RLMs configuration see SNMP Parameters page 211 Auserdefined Access Point RLM Name List that you can create using the CP 1515 Manager tool see AP Names Tab page 90 e SNR the signal to noise ratio which indicates the communications quality with the various Access Points RLMs e Channel to identify which radio channel is used by each of the Access Points RLMs Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager To perform a standard site survey
146. le for each unique Radio Link Module configuration using the Download Config File item from the RLM menu in the main RLM Manager window Use a file name that allows you to easily recognize the relationship between a file name and the specific RLM 8 3 31 Preparing Large Scale Networks To prepare the configuration you need to carry out the following activities Unpack the RLM and record their serial number and MAC address on the Access Point Configuration Record as printed in Start up Configuration page 232 of this document Make a list of IP addresses available in your network you will need one IP address for each Radio Link Module Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 221 Configuring Large Networks e Use the Access Point Configuration Record to assign one IP address to each of your RLMs e Record the intended system location of each Radio Link Module on the Access Point Configuration Record 8 3 3 2 Creating a Template File 1 To create a template file configure the first Access Point RLM as described earlier under Configuring Infrastructure Networks page 58 2 Save the configuration of this Radio Link Module to disk as described in Step 4 Create a Back up of the Configuration page 66 3 Create a copy of the back up file with the name common cnf or any other name that will allow you to easily recognize the file as the actual template file that we
147. led you can use SIMATIC NET IWL software tools to e Monitor the performance of your network e Verify optimal placement of your Access Points RLMs and wireless stations You are advised to verify the performance of your network on a regular basis as performance may change when wireless stations are relocated or office environments add or re arrange cube walls or when new equipment is installed that might interfere with the wireless communication 511 SIMATIC NET IWL Tools The SIMATIC NET IWL software suite offers two tools that enable you to monitor your network e CP 1515 Manager e RLM Manager Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 67 Introduction 5111 CP 1515 Manager The CP 1515 Manager has been designed to monitor the radio performance of your network on site You can use this program to e Run dynamic radio communication diagnostics with the Radio Link Module within range of your monitoring station e Display detailed link test measurement results with the Access Point RLM nearest your CP 1515 Manager station The CP 1515 Manager is a mobile wireless tool that can only run ona wireless station typically a portable device such as a notebook computer 5 1 1 2 RLM Manager The RLM Manager has been designed to monitor your network from a central location e g the LAN administrator station You can use this tool to display link test measurements between a remote RLM
148. less network This file APlist txt is stored in C Programs Siemens Gate Clientmanager e Edit the names later on using an ASCII editor such as the MS Windows Notepad 5 2 4 Logging Measurement Data 92 Both link test and site monitor enable you to log measurement results The measurement data can be logged manually or at regular intervals automatically The CP 1515 Manager saves the data to a Comma Separated Value csv file that can be imported into standard spreadsheet or database applications for further analysis Comparison of measurement data with previous measurements may help you investigate the performance of your wireless LAN over a period of time for example to analyze the consequences of relocated network equipment Both the Link Test window and the Site Monitor window have almost the same log settings parameters The only difference is that the Link Test window supports continuous data logging which the Site Monitor window does not support Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager 5 2 41 Manual Data Logging The manual data logging function allows you to take a snapshot of the measurement data at specific moment in time e g when you are running site monitor to do a site survey or when you are investigating a particular source of interference When you choose the manual mode you may also wish to enable the Add comments to log
149. less stations are within range of the same Access Point RLM but are not within range of each other 132 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic Figure 24 The Hidden Station Problem illustrates an example of the hidden station problem Both station A and station B are within range of the Access Point RLM however station B cannot hear station A therefore station A is a hidden station for station B When station B starts to communicate with the Radio Link Module it might not notice that station A is already using the wireless medium When station A and station B send messages at the same time they might collide when arriving simultaneously at the Access Point RLM The collision will most certainly result in a loss of messages for both stations In situations as pictured Figure 24 The Hidden Station Problem RTS CTS medium reservation may provide a solution to prevent message collisions by handing over transmission control to the Access Point RL Troubleshooting a hidden station problem usually provides the best results when it is performed on the suspected stations that suffer from errors as a result of the hidden station problem When configuring the PC Card CP 1515 parameters of an individual station you can enable the RTS CTS Medium Reservation parameter e To enable RTS CTS Medium Reservation parameter choose Add Edit configura
150. level of danger j NOTE Highlights important information on the product using the product or part of the documentation that is of particular importance and that will be of benefit to the user WARNING Indicates that death or severe personal injury can result if proper precautions are not taken N CAUTION with warning triangle Indicates that minor personal injury can result if proper precautions are not taken CAUTION without warning triangle indicates that damage to property can result if proper precautions are not taken Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Trademarks SIMATIC SIMATIC NET and SINEC are registered trademarks of Siemens AG Third parties using for their own purposes any other names in this document which refer to trademarks might infringe upon the rights of the trademark owners Safety Instructions Regarding your Product Before you use the product described here read the safety instructions below thoroughly Qualified Personal Only qualified personnel should be allowed to install and work on this equipment Qualified persons are defined as persons who are authorized to commission to ground and to tag circuits equipment and systems in accordance with established safety practices and standards Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Correct use of Software Products Please note
151. lick the Edit button to connect to the RLM 3 Select the SNMP tab to display the SNMP parameters 4 In the field Trap Host IP Address enter e Any valid IP address To this IP address a message is send if the Radio Link Module is reset e 0 0 0 0 Initial value To disable SNMP Trap Agent 5 Enter a password in the field Trap Host Password Choose a password that corresponds to the password set at the Trap Host to filter unsolicited or unauthorized SNMP Trap messages at the Trap Host Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access Point RLM Setup The Trap Host IP Password will be embedded in the SNMP Trap messages sent by this RLM If the Trap Host receives a message without or with an unknown password the Trap message will be ignored e Valid Values Any alphanumeric value in the range of a z 0 9 with a minimum of 2 and a maximum of 31 characters e Initial Value public 6 Press OK to return save the new configuration to the Access Point RLM and to return to the main RLM Manager window When you activate the trap host alerts be aware of the following e The IP address should identify the trap host station i e the network management station that will be used to receive the trap messages e The trap host password is included in the trap messages and will help the trap host station to identify whether a received trap host message came from its own domain or n
152. ll be stored in the volatile memory of the Access Point RLM i e if the RLM is reset the DHCP server may assign another IP address To obtain consistency in the IP address it is advised to assign a permanent IP address to the Radio Link Module using the Access Point IP Address field on the Access Point IP tab An IP address that is assigned by a BOOTP server is stored in the configuration file of the BOOTP server This configuration file has a one to one static fixed mapping from MAC address to IP address If a BOOTP server is used and the Radio Link Module is reset the IP address of the Access Point RLM is the same as before the reset Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 231 A Start up Configuration A1 Introduction Your Radio Link Module comes with installed operating software factory Together with this software the RLM has also been loaded with a factory set configuration that allows for out of the box operation j NOTE The factory set configuration should not be confused with a default configuration For example when performing a Reboot or Forced Reload described later in this book the unit will NOT return to the factory set configuration To connect to the Radio Link Module the network parameters of each wireless station should be configured to match the values as identified for the RLM unit e When powering up the Radio Lin
153. load AP Manager BBE File Access Point Tools Help Select AP group focal Area Network Scan x Edit Group Add Group Select Access Point from list IP Address MAC address L3 135 85 192 48 WPIL OL Forced Reload 00 60 1D 03 DD ED 135 85 192 49 WP L F amp A Online 00 60 1D 03 C0 F5 135 85 192 42 WP I 4E Online 08 00 64 2B 5C 2B 135 85 192 47 WP I 3E1 Online 08 00 64 2B 60 79 135 85 192 46 WPA 2IT Online 08 00 64 2B 51 FB 135 85 192 40 WP I 1N2 Online 08 00 64 24 F8 11 Enter the IP address for a specific Access Point 135 95 192 48 WP II OLis in Forced Reload Edit Monitor Hee _ 2 Select Upload Software from the Access Point RLM menu to start the configuration and upload procedure Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 253 Doing a Forced Reload e f you click the Edit or Monitor button before uploading the software you will be prompted to upload the software first 3 In the Open window move to the directory where you have installed the RLM Manager program If you downloaded the latest RLM software from the Siemens SIMATIC NET IWL web site select the directory where you saved the downloaded file 4 From the list of displayed files select the file wpntxxx bin where xxx identifies the version of the RLM software 5 Click the Open button to open the software file 6 You now have the possibility to upload a back up configuration file
154. lticast Address Threshold Eo Interface 1 Threshold po Interface 2 Threshold po Interface 3 Threshold poo Preset ETT Note Threshold values are in packets per second 0 Protection disabled Cancel Help The factory set configuration for storm threshold protection is disabled all values are set to zero 1 If you need storm threshold protection and are unsure of the proper broadcast and multicast values to input click the Preset button for values that will provide adequate levels for most networking environments 2 Click OK to keep these settings and return to the Bridge tab Click OK again if you want to save this configuration and return to the main RLM Manager window Otherwise continue changing other parameters 206 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters 8 2 3 Access point IP Parameters The Access Point IP tab enables you to set the common IP parameters and to change the unique IP address of your Radio Link Modules To change the IP parameters proceed as follows 1 Make sure you are connected to the right Access Point RLM in the edit mode and select the Access Point IP tab to display the IP parameters see Figure 40 Setup Radio Link Module IP Parameters 2 Verify and or modify the parameters of your choice The mandatory parameters that you must specify are e Acess Point IP address unique for each Access Point RLM in ca
155. me the frame is forwarded by a router the TTL counter decreases by one When the TTL 0 the frame is rejected U Unicast packets in The number of subnetwork frames delivered to a higher protocol This is true data from station to station Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 291 Unicast packets out The number of bytes octets transmitted out to the interface This is true data from station to station Up Time The amount of time elapsed since the last time the RLM unit was powered up reset or uploaded with a new configuration W Windows workgroup A Windows workgroup can consist of either wireless or wired network connections or a combination of the two Usually a Windows workgroup consists of members who are related because of a shared function e g members of the same department For a Windows workgroup it is not relevant where the workgroup participants are located since the members of a Windows workgroup are identified by their workgroup name only 292 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Index N A Access Control disable 164 Access Control Table 161 manual setup 179 180 Advanced Parameters 191 Analysis Polling Interval 113 Analyzing Link Quality see Link Test Results 77 EE B Back Up configuration files 246 257 create file 224 BOOTP 231 Bridge In Packets 110 Bridge Kernel 258
156. ministrator Station see MANAGER Station 32 LED error table 237 Link Test 74 logging measurement data 92 selecting link test partner 81 test results 77 Logging automatic 93 manual 93 Logging Measurement Data stop 95 ery M MAC Address access control 160 access point 49 MANAGER Station introduction 32 wireless station 39 50 Manual Data Logging 93 Measurement Data automatic data logging 93 automatic logging 93 logging 81 90 92 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 295 logging options 93 manual logging 93 Medium Reservation CTS 136 RTS 136 threshold 136 Monitoring CP 1515 Manager 68 introduction 67 methods 71 RLM Manager 98 utilities 67 Multicast Rate 196 a N Network basic access 58 managing 67 name 63 performance 67 problems 236 Network Name 63 Non Unicast Packets see also traffic 117 FC 0 Optimization redundant traffic 117 Out Collisions 110 Out Errors 110 fC P Parameters advanced 191 changing common 227 network name 63 RTS CTS medium reservation 131 wireless interfaces 63 Performance 67 Preventing Unauthorized Access 155 Protocol Filtering 200 296 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 EEE R RADIUS Server Access Control 165 Ratio of Errors to Bridge Packets 110 Read Password 177 233 Read password 177 Read Write Pas
157. mum number of frames per second as received from a single network device identified by its MAC address E Specifying an absolute maximum number of messages per port The Storm Threshold parameters allow you to specify a set of thresholds for each port of the Radio Link Module identifying separate values for the number of broadcast messages second and Multicast messages second When the number of frames for a port or identified station exceeds the maximum value per second the access point will ignore all subsequent messages issued by the particular network device or ignore all messages of that type Subnet A subnet is a logical sub division of a Local Area Network that has been divided by means of routers or gateways A subnet may include multiple LAN segments 290 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Each subnet is identified by the Subnet Mask Note SIMATIC NET IWL roaming does not work over routers To allow mobile stations to roam between different wireless cells all wireless stations and access points must be connected to the same LAN subnet T TTL Time To Live An advanced IP Parameter Setup counter that you can you use to maintain network efficiency The purpose of the Time To Live counter TTL is to avoid endless forwarding of message frames with an incorrect address that pollute the network medium The TTL defines a maximum number of passes per hop Each ti
158. n required thus maintaining the wireless connection to the network 28 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Infrastructures 2 4 Advanced Infrastructures 2 4 1 Multiple Channel Configuration The stations are capable of switching their operating frequency channel dynamically when roaming between Access Points RLMs that have been configured to use different radio channels Using different channels enables you to optimize wireless performance assigning different frequency channels to neighboring Access Points RLMs Multiple frequency configurations may prove very useful in environments where e Ahigh concentration of wireless stations are operational e The stations experience a performance decrease in terms of network response times as a result of the collision avoidance protocol for more information see RTS CTS Medium Reservation page 131 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 29 Advanced Infrastructures 30 F Channel A Figure 4 Dual Channel Configuration Channel B By configuring neighboring Access Points RLMs with different frequencies you create separate mediums for each wireless cell Operating at different channels the stations can no longer hear one another and therefore no longer need to defer communications When the configuration pictured in Figure 4 Dual Channel Configura
159. n stretched over too large distances In these situations frequent collisions might occur because stations can no longer detect the carriers transmitted by distant stations Collided frames will no longer be received by the addressed station The occurrence of a LAN segment system that is too long can be diagnosed with the remote statistics found on the Remote tab in the monitor mode of the RLM Manager 1 Select Interface 1 Ethernet from the pull down menu to display the statistics for the Ethernet interface 2 Compare the number of In errors with the number of Bridge in packets e When the number of In errors is 1 of the Bridge in packets or more there may be a cabling problem 3 Monitor the value increase of the parameter Bytes in over a longer period of time e When this number increases constantly with more than 600 000 bytes per second this may indicate a problem with the length of your LAN segment You may need to consult a network expert to verify and or adjust the length of your cable segments 124 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic NOTE If you decide to split the LAN segment into multiple sub segments make sure that all SIMATIC NET Industrial Wireless LAN equipped devices will be grouped into the same LAN segment Wireless stations will not be able to roam between LAN segments that are separated by routers and or gateways
160. ncoming Goods Department en Modo Contact Your LAN admi i e Analysis polling interval Up Time 2days 0 8 468 Less T More Services 2 second SNMP polling interval Object ID 1 3 6 1 4 1 76 Less More Description WavePOINT I 1 4 3 20 secon Cancel Link Test Print Close Help In the Intervals window two different time interval parameters can be set to change to monitor interval settings e Analysis polling interval used for remote link test e SNMP polling interval used for SNMP statistics Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 113 Using the RLM Mana 5 3 6 1 Adjusting A Subject to the type o ger nalysis Polling Interval connection you can adjust the refresh rate of the remote link test results also identified as the analysis polling interval While the remote link test will proceed to continuously collect measurement results the selected Radio Link Module initiator station will transfer the results to the LAN administrator station at regular intervals which can vary from 1 to 15 seconds e Use a short time interval e g 1 second for on line monitoring e g when troubleshooting or when you have full bandwidth access via the local network e Use a longer time interval e g 15 seconds when you run a remote link test only for background information purposes or in cases when you access the in
161. ndow AP Manager SBE File Access Point Tools Help Select AP group focal Area Network Scan z Edit Group Add Group Select Access Point from list IP Address APname Status MAC address 135 85 192 22 WPIL OL Online 00 60 1D 03 DD ED W 135 85 192 49 WPI F amp A Online 00 60 1D 03 CC F5 135 85 192 42 WPI 4E Online 08 00 64 2B 5C 2B 213 8 WP I 3E2 Online 08 00 64 24 F8 64 135 85 192 47 WP I 3E1 Online 08 00 64 2B 60 79 135 85 192 46 WP I 2IT Online 08 00 64 2B 51 FB 135 85 192 40 WPI IN2 Online 08 00 64 24 F8 11 Enter the IP address for a specific Access Point 135 95 192 48 WPI 3E 2 is online Edit Monitor 3 Click the Edit button If the RLM that you select is identified by the factory set IP address 153 69 254 254 you will be prompted to change this IP address a Enter a unique IP address for the Radio Link Module in the field access point IP Address Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Infrastructure Networks b Record the IP address on the RLM Configuration Record located in A Start up Configuration 4 Enter the Read Write password and click OK default password is oublic e If the RLM is found and if you entered the right passwords a new window appears with parameter tabs to change the configuration see Figure 12 RLM Manager Wireless Interfaces tab e If the Radio Link Module is not found in t
162. ndustrial Ethernet Wireless LAN CP 1515 documentation that comes with your product Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 35 Managing Infrastructure Networks 3 4 Managing Infrastructure Networks In an infrastructure network you will primarily use the LAN administrator station t hat has the RLM Manager installed to configure your Access Points RLMs and monitor the radio traffic between selected Access Points RLMs and stat ions within the network You may also install the CP 1515 Manager on all stations within the network or on selected mobile stations with the PC Card CP 1515 to monitor the link between the mobile station and the nearest Access Points RLMs 3 41 Wired or Wireless 36 The cho ice for a wireless or wired LAN administrator station will depend on your preferences and abilities to administer your network You sho you like uld first determine how you would like to manage your network If to configure and monitor stations from e on site to troubleshoot problems at the physical location of the station you 070 may choose to have a mobile wireless LAN administrator station RLM Manager and CP 1515 Manager e a central location such as the LAN administrator station you may 010 prefer a wired LAN administrator station RLM Manager e aremote location via modem calling into a RAS or PPP entry point to you r networ
163. nect this station to the network The NIC cards can be of any type including 1 PC card CP 1515 for wireless stations 2 Ethernet card e TCP IP protocol stack see Verifying the TCP IP Protocol Settings page 43 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 41 Installing SIMATIC NET IWL Software 3 5 3 Installing RLM Manager To install the RLM Manager software proceed as follows 1 Insert the software CD ROM that came with your product in the CD ROM drive of the computer that you have designated as the LAN administrator station If you downloaded the software from the web please refer to the installation instructions found on the web 2 When the CD Browser automatically starts you can proceed with the next step If not Click the Start button on the Windows task bar then select Run Click the Browse button in the Run window Select the drive letter of your CD ROM player then select the file setup exe and cl Click the OK button up 3 Click on Install RLM C Click on Install RLM Manager 5 Follow the instructions on your screen If not available yet a special Siemens group in the Wi group will provide access to the RLM Manager software to configure your Access Point RLM 42 ick the Open button in the Run window The CD Browser will start P 1515 Manager Industrial ndows Programs menu will be created This Ethernet Wireless LAN RLM Manager
164. net Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 4 Basic Network Configuration 41 Introduction This chapter will describe how to configure the SIMATIC NET Industrial Wireless LAN network for e Peer to Peer workgroups and e Infrastructure networks 411 Peer to Peer Workgroups A Peer to Peer workgroup consists of several wireless stations commun see Figu To set up do the fo e Seta e Seta e Seta icating directly with each other without bridging data via the RLM re 9 Peerto Peer workgroup a Peer to Peer workgroup operating with the standard protocols lowing stations to connect to a Peer to Peer workgroup stations to use the same Network Name stations to use an identical encryption key Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C 171 01 55 Introduction Figure 9 41 2 Infrastructure Networks 56 The number of network configurations that you could create using Access Points RLMs and SIMATIC NET Industrial Wireless LAN products is unlimited Therefore we have divided the rest of this chapter into three sections that should help you get your network up and running e The instructions for Configuring Infrastructure Networks page 58 will work fine in most networking environments e More advanced configurations settings are described in chapter 8 Advanced Network Configurations page 190 e The Advanced Parameters page
165. nfiguration 8 4 Modifying the Configuration You can modify the Access Point RLM configuration parameters using the Edit button from the main RLM Manager window Keep in mind that you will need to address the Radio Link Module using its new IP address and the new read write password if you changed the Read Write Password parameter to open the configuration file If your SIMATIC NET IWL management station is a wireless station you may need to modify the station s interface parameters to match the values that were originally stored in the Access Point RLM Alternatively if you have forgotten the read write password or any other setting required to access the RLM you may need to do a forced reload as described in Forced Reload Procedure page 244 j NOTE When you make changes to the configuration of a particular Radio Link Module you should update the Access Point Configuration Record to reflect these changes 226 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Modifying the Configuration 8 41 Changing Common Parameters If you need to make changes to the common parameters i e the parameters that apply to all Radio Link Modules the most efficient way to do so is as follows 1 Change the common parameters for one Access Point RLM 2 Save the changes to a new template file e g common cnf 3 Follow the procedure as described in Configuring other Radio Link
166. nfiguration to a local back up file cnf as described in Step 4 Create a Back up of the Configuration page 66 To save the table to RLM please refer to Importing an Access Control Table page 163 7 2 6 Importing an Access Control Table To import an access control table file tbl to your Radio Link Modules 1 Start the RLM Manager and connect to the Access Point RLM in the edit mode Select the Access Control tab and click the Edit button to display all MAC addresses that are currently authorized Click the Import File button and select the access control table file tbl that you wish to import Click the Open button to import the selected file Click OK to return to the Access Control tab 1 Also refer to information on Common Parameters page 219 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 163 Securing Access to Wireless Data 6 Click OK again to save the new configuration to the Radio Link Module and to return to the main RLM Manager window Optional Save the configuration to a local back up file cnf as described in Step 4 Create a Back up of the Configuration page 66 72 7 Disabling Access Control To disable access control for your Radio Link Modules 164 1 Start the RLM Manager and connect to the Radio Link Module in the edit mode Select the Access Control tab and click the Edit button to display all MAC addresses that are currently a
167. nistrator station and or share it with other LAN administrator stations You are advised to use only one table for all Radio Link Modules For more information refer to Creating Editing an Access Control Table page 161 75 2 Maintaining WEP Encryption Keys The WEP Encryption functionality allows the wireless system to support up to four different keys simultaneously This is in accordance with the 802 11 standard which defines four so called default keys These keys can be used to smooth the transition from the usage of one key to usage of a next key The general requirement for two cards to transmit encrypted between each other is that they share a common key value at the same key index number in the 4 key area at the moment of transmission The key index of the key that was used for encryption is transmitted in clear text in the header of the message and will be used at the receiving side to determine which of the 4 keys to use for decryption It is not mandatory that both sides typically RLM and SIMATIC NET Industrial Wireless LAN station have the same active set of 4 keys As long as there is one key in common they can communicate provided they both use that common key Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 183 Advanced Security Maintenance NOTE The 802 11 standard also defines the possibility for having a unique key per Station tied to the station s MAC Address SI
168. nk Modules these areas can either be an Ethernet or a SIMATIC NET IWL segment For Access Point RLMs there could even be two SIMATIC NET IWL segments A and B Each SIMATIC NET IWL segment is identified by a unique NWID Link Test An SIMATIC NET IWL diagnostics option that enables you to investigate a specific link between two wireless stations 278 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 You can use the Link Test to analyze the quality of the wireless communication and to determine or optimize the placement of stations and antennas M MAC Address 16 digit hexadecimal number that identifies a networking product on the network MAC Address Filter An advanced Bridge setup parameter for Radio Link Modules that enables you to deny data traffic between two specific devices via the wireless interface s of the access point bridge You can use the Static MAC Address filter to optimize the performance of a wireless and wired network For example to prevent redundant traffic from being transmitted over the wireless network you could deny traffic between two particular servers identified by their MAC Address and their location as perceived by the Access Point RLM on the wired or wireless port of the bridge In most situations however it will be easier to control redundant traffic via other filtering options such as Protocol Filtering Industrial Ethernet Wireless L
169. nts RLMs are still using the out of the box configuration the Radio Link Modules can be identified by means of their Ethernet MAC Address provided that the Access Points RLMs are on the same subnet as your LAN administrator station i e there are no routers between your LAN administrator station and the Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 49 Configuration Scenarios e When you have assigned a unique IP address value to each Access Point RLM you should be able to access each Access Point RLM from anywhere within the network by using its unique IP address When installing new Access Points RLMs out of the box you are advised to configure the Radio Link Modules one by one using the desktop workplace scenario as pictured in Figure 5 Wired Access via a Direct Cable Connection This will allow you to assign a unique IP address value to each unit prior to connecting the units to the network infrastructure 3 6 2 Wireless LAN Administrator Station A wireless mobile LAN administrator station allows you to use the RLM Manager in combination with the CP 1515 Manager tool 50 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuration Scenarios Figure 7 Wireless Access via a Direct Connection LAN administrator station Using a wireless LAN administrator station allows you to configure Access Points RLMs e Directly
170. number of LAN administrator stations to view and or modify the configuration of the RLMs based upon the IP address of these stations The field SNMP IP Access List should typically include the IP address of all LAN administrator stations that will use the RLM Manager to configure and or monitor your Radio Link Modules To authorize the LAN administrator station you must enter e The IP address of the station s and e The Access Point RLM network interface through which they will access the Access Point RLM To indicate the interface use either e 1 for Ethernet e 2 for the wireless network interface in socket A or e 3 for the wireless network interface in socket B wow Alternatively you can use the value x to allow the identified IP address to access the Radio Link Module via any of the available interfaces Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 215 Advanced Parameters To allow multiple LAN administrator stations to access the RLM configuration and or monitor parameters you can also assign a range of IP addresses Doing so enter a subnet mask value that will indicate the subnet from which all stations are authorized to modify the SNMP setup 8 2 5 Ethernet Interface Subject to the type of interface offered by your Access Point RLM you can select one of the options see Figure 42 Select Ethernet Interface 216 Industrial Ethernet Wireless LAN RLM Manager
171. odule from the group of RLMs that are operated within your network The most important unique parameters are listed in Table 8 Unique RLM Parameters Table 8 Unique RLM Parameters Parameter RLM Manager Setup Menu e Radio Link Module IP Address Access Point IP e System Name SNMP e System Location 8 3 3 Managing Configuration Consistency The most convenient way to manage the configuration of a large number of Radio Link Modules is to configure the first Access Point RLM and save its configuration to file Use this file as a template that you can upload to the other RLMs After loading the template file on each Radio Link Module you will modify the parameters identified as the unique parameters to differentiate the RLM from the other Radio Link Modules in this network In other words the easiest way to manage a large number of RLMs is as follows Access Points RLMs 220 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Large Networks Preparation dentify and record all information related to each of the Radio Link Modules to be configured Creating a template file dentify and set the common parameters that should apply to all RLMs within your network Configuring all Radio Link Modules mport the template file and modify all the unique identifiers to differentiate the Access Point RLM from the other RLMs CAUTION We recommend that you create a backup fi
172. om mobic 6 2 8 9 Dual Channel Configuration A Dual Channel system e All Access Point RL channel 1 2412 MH e All Access Point RL could look as follows s identified as operating on channel A would use z s identified as operating on channel B would use channel 11 2462 M Hz 138 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic Figure 27 Dual Channel Configuration E Channel A Channel B This way you can apply a maximum channel separation for neighboring Access Points RLMs that will easily satisfy the requirements recommended for optimal operation Station 1 would use channel A to communicate with its Access Point RLM without bothering station 2 to defer its transmissions to the neighboring Radio Link Module When either one of the stations would roam to another location it will automatically switch its radio to any other operating channel required to remain connected to the network Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 139 Eliminating Redundant Traffic 6 2 8 10 Multiple Channel Configuration You can alternate the frequency channels of your Access Points RLMs between three or more sub channels depending on local radio regulations that apply in your country Figure 28 Multiple Channel Configuration Channel A P Channel B Channel C 140 Industrial Ethernet Wirel
173. om the list or enter an IP address for a specific Radio Link Module 2 From the Radio Link Module menu select Upload Software The RLM Manager program will prompt you to open an Access Point RLM software file bin 3 Move to the directory where you have installed the RLM Manager program file or the directory where you saved the Access Point RLM software file you downloaded from the Siemens SIMATIC NET IWL web site 4 From the list of displayed files select the file wpntxxx bin where xxx identifies the version of the Access Point RLM software 5 Click the Open button to open the Radio Link Module software file 6 Enter the password for the RLM if you are prompted to and click OK to continue 7 When prompted to confirm the RLM software upload click Yes WARNING The RLM will now reboot and start bridging operation using the parameters as set in the software file Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 259 Upload Software D 2 1 Confirm Upload RLM Software When you try to upload the RLM software file bin to your RLM a message box will pop up asking you to confirm e The upload to the RLM and e Overwriting the RLM software file bin that you selected for upload to the RLM You do not need to be concerned that the RLM software file will be overwritten as this will affect neither its functionality nor its features D 2 1 1 Yes Upload RLM Software Wh
174. on This section will describe some of the characteristics and features of each type and identify whether further modifications to the setup of your computer or desktop workplace are required 3 6 1 Wired LAN Administrator Station Using a wired LAN administrator station allows you to configure Access Points RLMs via e A desktop workplace setup connecting your computer to the Access Point RLM via a hub or Ethernet switch as pictured in Figure 5 Wired Access via a Direct Cable Connection or direct via a TP cross cable e A regular wired Ethernet connection as pictured in Figure 6 Wired Access via a Network Connection Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 47 Configuration Scenarios Figure 5 Wired Access via a Direct Cable Connection LAN administration AN Selecting a wired LAN administrator station is recommended in one of the following situations e You prefer to manage your Access Points RLMs from a fixed central location e The Access Points RLMs will be installed on remote locations that are accessible via TCP IP networking 48 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuration Scenarios Figure 6 Wired Access via a Network Connection LAN administrator station Looking at Figure 6 the LAN administrator station has access to both Access Points RLMs A and B via the wired backbone e When these Access Poi
175. on Remote Statistics Tab page 108 1 Start the RLM Manager and select the Access Point RLM and click the Monitor button 2 From the Monitor menu select Remote Statistics 3 Select the Remote tab to display the interface statistics Compare the number of Out collisions with the number of Bridge out packets Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic e When the number of Out collisions is less than 1 of the Bridge out packets this indicates that the wireless medium is performing fine i e protocol filtering is not required but might still be considered e When the number of Out collisions is more than 1 of the Bridge out packets this indicates that the wireless medium is very busy If the wireless medium is busy and you do not see many users or excessive traffic on the network it might be worth investigating whether protocol filtering will improve your network performance 5 Compare the number of Unicast packets out to the number of Non Unicast packets out e When the number of Non Unicast packets out is relatively high when compared to the number of Unicast packets out this might indicate your network generates a large amount of network traffic This does not necessarily mean that the traffic load is caused by the protocols but it might be worth investigating whether protocol filtering will improve your network
176. oo rapidly this indicates insufficient space on the network due to a backbone overload or faulty cabling Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic 5 Check whether the problem occurs only with the selected RLM or with multiple Access Points RLMs e If the problem is observed on only one Access Point RLM the problem may lie in the connectors or cable s that connect the Radio Link Module to the hub or wired backbone e When the problem exists with multiple Access Points RLMs it is likely to be caused by the cables or connectors of the wired backbone hub or the bridge router device that connects this network segment to your LAN 6 2 5 1 Troubleshooting Cabling Problems Using the procedure described above you may have determined the area where a cabling error might be suspected To resolve the problem carefully check the cabling system in this area to verify whether all connectors are properly seated at the e Access Points RLMs e Bridges routers and hubs e Wired stations connected to the cabling system If your network uses BNC coax cable 10Base2 make sure that terminators are placed on both ends Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 123 Eliminating Redundant Traffic 6 2 6 Checking the Length of Your LAN Segments In exceptional cases networking problems may be caused by LAN segments that have bee
177. option to allow you to add comments to your logging information e g a description of the location or event If you enable this option a dialog box will appear each time you press the Log Once button The manual data logging option is typically used on CP 1515 Manager stations roaming the network running site monitor 5 2 4 2 Automatic Data Logging The automatic data logging function allows you to log the network performance automatically at preset intervals This may be useful if you wish to monitor recurring events or variation in values over a long period of time When you choose the automatic mode you need to set the measurement interval to a specific number of seconds Automatic data logging is typically used when the CP 1515 Manager station is running a link test at a particular location 5 2 4 3 Setting the Logging Options 1 Click the Log Settings tab in the Link Test window or in the Site Monitor window to display the window pictured in Figure 17 Log Settings Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 93 Using the CP 1515 Manager Figure 17 Log Settings Client Manager Link Test ix Channel 1 This station John s Workstation Test partner Access Point Floor2 Test Results Test History Log Settings Excellent connection Log file name Duaa Data logging off Automatic data logging Log every 5 seconds Manual data logging Continuous data logging
178. or or SNMP error no such name To define a read write password 1 Start the RLM Manager and select the target RLM from the list or enter a specific IP address 2 Click the Edit button to connect to the Radio Link Module 3 Select the SNMP tab 4 In the field Read Write Password enter the new password The default value is public 5 Click OK to save the configuration to the Radio Link Module WARNING The RLM will now reboot 7 4 2 SNMP IP Access List In addition to the read and read write passwords you can restrict access to the Radio Link Module configuration to a limited number of authorized stations 178 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access Point RLM Setup To authorize the SIMATIC NET Industrial Wireless LAN management station to access your Radio Link Modules you must identify e the unique IP address of the management station and e the RLM interface port via which this station will access the configuration If you wish to authorize multiple stations you can identify a range of IP addresses that you will reserve for authorized LAN administrator stations j NOTE When using the SNMP IP access list you should include the IP address of all stations that will need to retrieve configuration or diagnostic information of the Radio Link Module i e stations of administrators who use either read or read write passwords
179. ost messages should be zero When communications quality is Marginal the total number of lost messages may be in the range of 1 to 3 When the total number of messages is gt 5 your network environment will most likely suffer from performance problems Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager In most situations you will see that the number of lost messages will increase whenever the level of SNR decreases The different fields for messages received at the different transmit rates e g 11 Mbit s 5 5 Mbit s 2 Mbit s and 1 Mbit s may serve as an indicator for network throughput efficiency It is normal behavior for SIMATIC NET IWL stations to retransmit messages that were lost either as a result of a frame collision or because the test partner was out of range e f amessage transmission fails your wireless station will retransmit the lost frame e f re transmitting fails repeatedly the station will switch to a lower data speed and try to transmit the message again The higher the number of messages received with the highest transmit rate the better your throughput efficiency A relatively high number of messages received at lower transmit rates may indicate e nadequate radio performance which can typically be related to the level of SNR or e Network congestion This may typically be the case when the SNR was
180. ot 7 4 3 2 Trap Host Messages The following message types can be distinguished e Call boot trap messages e Authentication failure messages e Link up or down messages 7 4 3 3 Call Boot Trap Messages A Call boot trap message can occur in one of the following situations e Radio Link Module is reset Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 181 Securing Access Point RLM Setup e Power down e RLM configuration has been changed 7 4 3 4 Authentication Failure Messages This message type is sent to the LAN administrator station once a wrong password has been entered on a mobile station However the Radio Link Module itself does not respond a time out error occurs 7 4 3 5 Link Up or Down Messages This type of message can be used to signal a problem with link integrity If for example in a duplicate Ethernet connection an Ethernet link is broken a Trap message link down is sent As a result of this message the other Ethernet connection will be used Once the link is restored the original connection a link up message will be generated The original connection can be used again 182 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Security Maintenance 75 Advanced Security Maintenance 7 51 Maintaining Access Control Tables It is best to create a single access control table and store it on the harddisk of the LAN admi
181. ou to control the responsiveness of the SIMATIC NET IWL RLM Manager Remote Link Test The Analysis Polling Interval determines how often RLM Manager will read the diagnostic tallies of the bridge unit Valid values 1 15 seconds See also Monitoring your SIMATIC NET IWL Network page 67 Basic Access Network A basic access network consists of a small sized wireless LAN with no connections via gateways or routers The number of RLM in this network typically varies between 1 and 5 The administrator stations need to have the TCP IP protocol stack loaded and use IP addressing to configure and monitor the RLMs IP addressing and the TCP IP protocol are not strictly necessary for client stations Beacon A message that is transmitted at regular intervals by the RLM to all wireless stations in the domain Beacon messages are used to maintain and optimize communications by helping mobile SIMATIC Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 269 NET IWL stations to automatically connect to the access point that provides the best communications quality BOOTP Bootstrap Protocol The standard protocol that is used to configure systems across internetworks BootROM Memory chip in your Access Point RLM that contains the start up configuration of the access point When you change the configuration of a RLM unit the values of the configuration parameters will be stored in the BootROM Bridge in Th
182. ove MAC addresses one at a time Delete All remove all MAC addresses and disable access control Import File to import an existing access control table Save File to save the current access control to a file 6 Repeat step 5 for all stations you want to authorize to send receive data via this RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 161 Securing Access to Wireless Data Figure 34 Setup Access Control Edit Access Point configuration 192 168 1 71 x Wireless Interfaces Access Point IP SNMP Bridge Access Control Link Integrity Ethemet Interface Edit the list of MAC addresses allowed on this access point Setup the RA Setup Access Control x MAC Address Comment 00 60 1D 1E 22 31 Tom s Palmtop 00 60 1D 1E 1F 8F Richard s Notebook 00 60 1D 1E 1F Edit Delete Delete All Import File ET EERE p me ay Save File OK Cancel Help i 162 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 10 Securing Access to Wireless Data Click the Save file button to make a back up copy of the access control table file you just created tbl You can use this file later to import the configuration into other Access Point RLM Click OK to return to the Access Control tab Click OK again to save the new configuration to the RLM and to return to the main RLM Manager window Optional Save the co
183. owing paragraphs 3 When finished proceed with configuring other parameters or click OK to save the configuration and return to the main RLM Manager window 8 2 41 Read Password Change the Read Password parameter in order to prevent unauthorized access to the Access Point RLMs A read password is requested when you connect to RLMs with the Monitor option The default value is public With the correct read password a local LAN administrator can only monitor Radio Link Module statistics and tables but not view or change any of the parameters 8 2 4 2 Read Write Password Change the Read Write Password parameter in order to prevent unauthorized access to the RLMs to make changes to its configuration settings A read write password is requested when using the Edit button to connect to the Access Point RLM The default value is public With the correct read write password a network supervisor can monitor Radio Link Module statistics and view or change any of the parameters of the configuration Using different values for the Read and Read Write Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 213 Advanced Parameters Password parameters you can create different levels of authority for your LAN Administrators to configure and or monitor the RLMs 8 2 4 3 System Contact Use the field System Contact to enter a generic name for the network supervisor or department e g Your LAN Adm
184. performance CAUTION It may require advanced networking expertise to identify which protocols are used within your network and to decide which protocols can be filtered without affecting the proper operation of your network operating system Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 119 Eliminating Redundant Traffic 6 2 3 Filtering Network Protocols When you suspect that network protocols are adversely affecting the performance of your network use the following procedure to filter out unnecessary or unwanted network protocols 120 il Oy Ol ae OO o N 10 Investigate what type of network stations and services are located in the environment of your network Consult the documentation that came with your network operating system to investigate which protocols are required for network servers and services and for the wireless stations Start the RLM Manager program Select the Radio Link Module of your choice and click the Edit button Select the Bridge tab to show the protocol filtering information On the top right side of the protocol filtering section click the Edit button to open the Protocols to Filter window pictured in Figure 37 Select Ethernet Protocols to be Filtered Place a check mark for all protocols that you wish to filter Optional To add a non isted protocol to the list click the Custom button to enter the protocol manually When finished cli
185. r CP 1515 Manager C79000 G8976 C171 01 141 Eliminating Redundant Traffic 142 3 4 Choose the socket A or B for the network interface that you would like to configure Click the Advanced button The PC Card CP 1515 supports multiple sub channels a pull down box will appear allowing you to select a different operating frequency The number of channels is subject to local regulations In the Wireless Advanced Setup window use the Channel pull down menu to select a sub channel that allows for maximum channel separation from neighboring Access Points RLMs minimum channel separation 25 MHz Table 2 lists a number of successful channel combinations that you can use to configure SIMATIC NET IWL networks with multiple Radio Link Modules e For Dual Channel Configuration page 138 alternate between channels A and B e For Multiple Channel Configuration page 140 alternate between channels A B and C NOTE The availability of the listed channels in Table 2 Recommended Sub Channel Configurations is subject to local radio regulations that apply in your country A complete list of supported channels for your country can be found in the manual Industrial Ethernet Wireless LAN CP Basics and via the MOBIC web site http www siemens com mobic Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic Table 2 Recommended Sub Channel Configur
186. rces Subject to the level of security required in your network environment these measures may include Securing Access to Wireless Data page 155 Wireless Data Encryption page 167 Securing Access Point RLM Setup page 177 Advanced Security Maintenance page 183 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 7 2 To pre Securing Access to Wireless Data Securing Access to Wireless Data vent unauthorized stations from accessing data that is transmitted over the network the products support the following levels of security e Restrict Wireless Access to the Network e Data encryption to encrypt all data transmitted via the wireless medium see Wireless Data Encryption page 167 These layer layer security measures that apply to communications at the physical complement the user name password validation at the network as implemented by standard network operating systems 721 Restrict Wireless Access to the Network To exc ude unknown and unauthorized computing devices from establishing a wireless connection to the network you can use the following options e Closing your network to all stations that have not been programmed wi h the correct network name see Closing the Wireless Network page 156 e Use access control tables to build a list of authorized stations allowed to es ablish a wireless connection with the network see Acc
187. require a specific IP address or for which you do not want the IP address lease to expire you can use a DHCP Management program to reserve their IP addresses This is the case with your Radio Link Modules Once a range of IP addresses has been reserved you can use the values in this range to assign to your SIMATIC NET IWL system The Unique Identifier is the Media Access Control MAC address for the DHCP Client The Client Name should be the computer name for the DHCP Client However this name is used for identification purposes in the DHCP Manager interface and therefore does not have to be and will not affect the actual computer name To see which IP addresses are still available your DHCP Management program will usually include a Scope Active Leases option This option allows you to see which DHCP Clients have leased an IP address from the DHCP Server Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 273 E Encryption A security feature for Access Point RLM and SIMATIC NET IWL stations that enables you to encrypt data that is transmitted via the wireless medium SIMATIC NET IWL products are optionally available with a factory installed encryption chip that is based the WEP encryption algorithm To use encryption in your wireless network all SIMATIC NET IWL stations and access points must have the encryption feature installed and set to Enable All Radio L
188. ring from 1 to 32 characters in the range of a to z A to Z and 0 to 9 64 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Infrastructure Networks The network name should be the same for all wireless network interfaces that will service wireless stations that belong to the network The network name distinguishes your Access Points RLMs from Access Points RLMs that belong to a neighboring network For information on other Interface parameters like the Advanced and Security button see Advanced Network Configurations page 190 4 When finished changing parameters click OK to save the configuration to the Access Point RLM and to return to the main RLM Manager window as pictured in Figure 11 Main RLM Manager window At this stage the IP address and other settings are stored in the volatile memory of the RLM WARNING If you save the configuration to the Radio Link Module by clicking the OK button the RLM reboots automatically This will complete the basic configuration of your RLM This basic configuration will work efficiently in most networking situations You are advised to make a back up file of this configuration as described in Step 4 Create a Back up of the Configuration page 66 More advanced parameter settings are discussed in Advanced Network Configurations page 190 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000
189. rks where all Access Points RLMs have been configured to operate at the same frequency or at frequencies with an insufficient channel separation see Frequency Channel Management page 138 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 147 Designing High Capacity Networks 6 3 1 1 Influencing the Deferral Behavior To overcome the performance issue described on previous pages you can choose to design a high performance network based on the following principles e Add more Radio Link Modules to your network e Configure Access Points RLMs in neighboring cells to operate at different frequency channels with a maximum channel separation see Frequency Channel Management page 138 e Adjust the Distance Between APs parameter to optimize the load balance of the number of wireless stations per Access Point RLM see Distance Between APs page 194 CAUTION Distance between APs is a parameter that must be set on both the wireless stations and the Access Point RLM The values that you select must be the same for ALL wireless equipped devices in your network to avoid unpredictable behavior of your network and the roaming connectivity of wireless devices By changing the Distance between APs parameter from Large to Medium or Small you can virtually reduce the receiver sensitivity of the wireless radios that will show the following behavior e The stations will show a more active roaming beha
190. rnet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 257 D Upgrading the RLM Software D1 About the RLM Software The Access Point RLM runs on embedded software that is also referred to as firmware or Bridge Kernel This software is already factory installed so in normal situations you do not need to worry about the software of the RLM In exceptional cases however you may choose to load new RLM software into the FlashROM of your RLMs for example in situations where e You wish to upgrade your RLM to support new functionalities e You were advised to do so by Siemens support e You need to do a forced reload procedure The RLM software is a binary file of the format wpntxxx bin where xxx identifies the version of the RLM software You can find a copy of this file in the program directory where you installed the RLM Manager program For the latest version of the Radio Link Module software versions you are advised to consult the Siemens http Awww siemens com mobic web site 258 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Upload Software D 2 Upload Software When uploading RLM software or firmware no changes are made to the configuration of the RLM However it is recommended to create a back up file using the Download Config File from the RLM menu in case no backup file exist of the current configuration setting 1 Select the target Radio Link Module fr
191. rward Delay 15 r Protocols to Filter lt None gt Priority Path Cost fize po Interface 2 fi 28 fi 00 fi 28 fi o0 Preset Cancel Help Interface 1 Interface 3 I Enable Spanning Tree 204 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters To enable spanning tree 1 Click the Spanning Tree button to open the Spanning Tree Setup window see Figure 38 Spanning Tree Setup window Click the Enable Spanning Tree check box Use default values see Figure 38 Spanning Tree Setup window Click OK to return to the Bridge tab Click OK again if you want to save this configuration and return to the main RLM Manager window Otherwise continue changing other parameters Ord E At this point we recommend that you create a backup file as described in Step 4 Create a Back up of the Configuration page 66 8 2 2 4 Storm Threshold The Storm Thresholds button allows you to set parameters that are used in protecting the network against message overload as received from a single station or via a specific port The Storm Thresholds window allows you to determine the maximum number of multicast and broadcast messages that will be forwarded from one port or address per second Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 205 Advanced Parameters Figure 39 Storm Thresholds Protection Disabled Broadcast Mu
192. s except for the System Location and System Name are common parameters i e they should be the same for ALL Radio Link Modules in your network To set the SNMP parameters proceed as follows 1 Make sure you are connected to the right Access Point RLM and select the SNMP tab to display the SNMP parameters pictured in Figure 41 Setup SNMP parameters Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 211 Advanced Parameters Figure 41 Setup SNMP parameters Edit Access Point configuration 192 168 1 71 Access Control Link Integrity Ethernet Interface Wireless Interfaces Access Point IP SNMP Bridge Read Password Co Read Write Password nl System Contact Your LAN Administrator System Name incoming Goods Department System Location Fon SCS Trap Host IP Address fi921681 70 O00 Trap Host Password peo SNMP IP Access List Address Mask Interface lt All will be permitted gt 2 Verify and or modify the parameters of your choice The recommended parameters that you should specify are e Read Write Password to restrict access to the configuration of your Access Point RLMs and 212 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters e System Name to allow easy identification of the Radio Link Module when using the diagnostic options of your software tools These and all other SNMP parameters are explained in the foll
193. s such as RTS CTS Medium Reservation Distance between Access Point RLMs e Bridge parameters that enable you to filter specific networking protocols and or traffic between specific stations e Access Point RLM parameters or e SNMP parameters For most networks the default settings for the advanced parameters will provide more than reliable network connectivity You are advised to change these parameters only when you are familiar to the type of parameters for example based upon your experience and expertise with similar parameters in wired and or SIMATIC NET IWL networking environments j NOTE A number of the advanced parameters described below may be marked as common parameters This means that they should be the same for all Radio Link Modules in your network see also Configuring Large Networks page 218 To set the advanced parameters simply follow the instructions as described in the previous section Configuring Infrastructure Networks page 58 to connect to the Access Point RLM that you wish to configure Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 191 Advanced Parameters 8 21 Advanced Parameters If you created a basic Access Point RLM configuration as described in the previous section you may have already noticed the additional buttons in the setup window as pictured in RLM Manager Wireless Interfaces tab page 64 8 211 Frequency The Frequency
194. se of a BOOTP or DHCP server this IP address is entered automatically e Access Point Subnet Mask the same for all Radio Link Modules in case of a BOOTP or DHCP server this IP address is entered automatically e optiona RLMs e optiona Access All paramete Default router usually the same for all Access Point Default TTL Time To Live usually the same for all Point RLMs rs are explained in the next paragraphs 3 When finished proceed with configuring other parameters or click OK to save the configuration and return to the main RLM Manager window Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 207 Advanced Parameters Figure 40 Setup Radio Link Module IP Parameters Edit Access Point configuration 192 168 1 71 x e Gibtermenl saciess tor Un li server Qi 192 168 1 71 255 255 255 0 192 168 1 1 208 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 8 2 31 IP address Advanced Parameters Each Access Point RLM needs an unique IP address Use either e DHCP to obtain an IP address automatically or e manually enter an IP address j NOTE All Access Point RLMs must have a unique IP address value to allow you to address each Radio Link Module specifically Duplicate IP address values ma or negative impac y cause unexpected behavior of the network and on network performance 8 2
195. setup menu gives you the ability to select an operating frequency from a range of sub channels within the 2 4 GHz frequency band The number of selectable channels is determined by the radio regulations that apply in your country Click the Advanced button on the Wireless Interfaces tab of the edit mode to change the frequency parameters To optimize network traffic we recommend that you assign different operating frequencies to Radio Link Modules that service neighboring wireless cells Doing so stations in each of the cells will be able to use the maximum bandwidth available to their cell Wireless stations equipped with PC cards CP 1515 can dynamically change the operating channel when roaming between Access Point RLMs that operate at different sub channels 192 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Parameters 8 2 1 2 RTS CTS Medium Reservation RTS CTS medium reservation may provide a solution for networks where e Density of stations and Access Point RLMs is very low e You witness poor network performance due to excessive frame collisions at the Radio Link Modules However in most networking environments it is very unlikely that you will need to enable RTS CTS medium reservation on the Access Point RLM to prevent collisions You are advised to read the information about Optimizing Wired Connections page 121 prior to changing this setting for the Access Point RLM To en
196. ss Point RLM units simultaneously You can use the Site Monitor to investigate the overall coverage of your SIMATIC NET IWL network and to perform site verifications Site Verification 286 A procedure to determine or optimize the placement of your Radio Link Module See also Site Monitor Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 SNMP Simple Network Management Protocol A standard network protocol that can be used to manage networks locally or worldwide via the Internet SNMP IP Access List An advanced Security option that enables you to authorize SNMP management to a restricted group of SNMP Management stations To authorize a station to access the Radio Link Module configuration or diagnostic information you will need to add the IP address of that station to the so called SNMP IP Access List When you enable the SNMP IP access option the RLM will deny all requests to read the configuration data or diagnostic tallies when the IP address of the requesting station is not registered in the SNMP IP access list You can use the SNMP IP Access List in combination with other security options such as the Read and Read Write passwords To create or edit the SNMP IP Access List use the SNMP tab of the RLM Manager program SNMP Polling Interval A parameter that enables you to control the responsiveness of the RLM Manager Monitor options Valid values 1 second 5 m
197. ss Access to Ethernet Networks Advanced Infrastructures ccccccccscsccceeececceeeeseseeeeeeceseseeceettstssaeees 29 Multiple Channel Configuration cc ccccceceeceeeeeeeeeeeeeeeeeeeeeseeteesneeeees 29 Setting Up your LAN Administrator Station MTFODUGHON sacs fe Seared deplores ol Alege newchcesteatine tite We eee cole iece E 32 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 w w gt UO wo 9 an Eas WN N O00 oH No i NM Bou gag WAR ARR A W WWW WW N No Assigning an LAN Administrator Station 0 ccccccccceeeeceessseeeeeeees 34 Minimum REQUIrEMENtS ieuan a a aAa E 34 Managing Peer to Peer Workgroups cccceceeeeeeeeeeeeeeeeeeeeteneteees 35 Managing Infrastructure N tWOFrkS cccccececcccccsseeeeeeesseeeeesteeeeeesaes 36 Wired or WireleSS ccceeeeeeeeeeeeeeeeees 36 nstalling SIMATIC NET IWL Software 40 CP 1515 Manager cs iiia iaaa 40 RLM Manager 05 ke4 nstalling RUM Manager e israsesecdevecops aa Aa NE 42 Configuration Scenarios 2 0 0 cece cceecceeccsseeeeeeetseeeecnteeeeeeseeeeeeseeeeees Wired LAN Administrator Station F Wireless LAN Administrator Station ccccccceecseeeeececeeeeeeeeeeteeeteeeseneees 50 Uninstalling SIMATIC NET IWL Software ccccccccccsseceeeseeeeeesseeees 54 Basic Network Configuration NUOGUCTION Aa EEEE EE E E N E EA deateled
198. sword 177 233 Reboot manually 241 remotely 243 Redundant Traffic 117 Refresh Button 105 Remote Link Test 103 Remote Statistics 98 Reset see Reboot 241 RLM Manager 98 about 19 Roaming 229 RTS see Medium Reservation 134 a S Securing Unauthorized Access 155 Security access control 159 data encryption 167 read password 177 SNMP IP access 178 trap host alerts 180 WEP Encryption 168 write password 178 Setup bridge parameters 197 SIMATIC NET IWL install software 40 Site 81 Site Monitor 81 logging measurement data 92 selecting another domain ID 86 SNMP default router 210 IP access list 215 IP address access list 177 parameters 211 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 297 polling interval 113 read password 213 SNR Signal to Noise Ratio 84 Spanning Tree 203 SSID 90 97 Static MAC Address Filter 202 Storm Threshold 205 Subnet Mask 46 210 Subnets about 229 System Interval Parameters 112 a T TCP IP Protocol Settings 43 Technical Support 262 Time Interval 112 114 Time To Live 211 Tools CP 1515 Manager 19 Trap Host 210 activate 181 alerts 180 disable 180 IP address 214 mechanism 180 password 180 215 Trap Messages 210 Troubleshooting problem solving approach 236 a U Unicast Packets see also Traffic 117 Up Time 101 Upgrade access point software 258 Upload Software 253 259 about 261 RLM Manager
199. t the Radio Link Module from a remote location 1 Start the RLM Manager program 2 Select the target Access Point RLM from the list or enter the IP address for a specific RLM 3 Open the RLM menu Select Reboot RLM The RLM Manager program will now prompt you to enter the password required to reboot the device 5 Enter the Read Write password and click OK 6 The Radio Link Module will restart and run the start up diagnostics After approximately 15 seconds the RLM will start bridging operation using the configuration parameters as they were stored in the RLM prior to the reboot If you would like to display the configuration file or monitor the Radio Link Module s performance after a reboot you may have to wait until the unit completes the start up diagnostics before you can access the Access Point RLM again Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 243 C c1 244 Forced Reload Procedure Introduction A forced reload allows you to recover from a situation where The Radio Link Module has stopped responding to the system You have mislaid the unique identifiers such as IP address SNMP read write password or other parameters that prevent communication with the RLM The Access Point RLM has been configured with incorrect network parameters preventing you to access the RLM via the network interface CAUTION When you need to do a forced reload please keep in mind the
200. table Impact Network performance is OK but your network might not do as well as you expected Action Refer to Optimizing Performance page 116 to determine the cause of the problem and optimize your network performance 1 or more Status Performance is poor Impact The performance problem may be caused by your network cabling or connections Action Refer to Optimizing Performance page 116 to solve the problem 2 or more Status Performance is very poor Impact Your network operating system is likely to face severe performance problems Action Refer to Optimizing Performance page 116 to investigate the problem in more detail You may need to consult an external expert Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 111 Using the RLM Manager 5 3 6 System Intervals 112 To display the system interval parameters to monitor the RLM you must first connect to the target Access Point RLM as described in Connecting to Access Points RLMs page 99 Select the System tab and click the Options button to display the window pictured in Figure 22 Intervals window Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the RLM Manager Figure 22 Intervals window Monitor Access Point 153 69 254 253 x Interface SNMP ICMP TCP UDP iP IEEE 80211 System Bridge Leam Table IPARPTable Remote System Identification Name I
201. terface of the RLM Manager Remote Link Test is very similar to the Link Test of the CP 1515 Manager 5 3 4 1 Starting the Remote Link Test To display the remote statistics for the Radio Link Module you must first connect to the target RLM as described in Connecting to Access Points RLMs page 99 1 Select the System tab and click the Link Test button to display the window pictured in Figure 19 Select a Link Test Partner The fields in the top section of this window identify the initiator station you selected when connecting to the Access Point RLM Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 103 Using the RLM Manager Figure 19 Select a Link Test Partner Select a Remote Link Partner for 153 69 254 253 21 x Name incoming Goods Department Description access Point SN 97L Location Access Point Floor 2 Up time E days 2 45 21 Station Name Address Interface Radio Type Tom s Palmtop 00 60 1d 1e 23 31 2 WaveL ANAEEE Richard s Notebook 00 60 1d 1e 1f 8f 2 WaveL ANAEEE William s Workstation 00 60 1d 1e 1f 92 2 WaveL ANAEEE Jason s Notebook 00 60 1d 1e 20 ac 2 WaveL ANAEEE Mary s Palmtop 00 60 1d 17 27 d1 2 WaveL ANAEEE John s Powerstation 00 60 1d 1e 20 c5 2 WaveL ANAEEE Jennifer s Notepad 00 60 1d 1e 1t 27 2 WaveL ANAEEE Harry s Handheld 00 60 1d f0 19 b3 2 WaveL ANAEEE Susan s Scanner PC 00 60 1d 1e 1f 7c 2 WaveL ANAEEE John s Workstation 00 60 1d 1e 1f 29 2 W
202. the colored circles e Roaming stations in a specific cell will remain connected to the servicing Access Point RLM until they exit the wireless cell Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 149 Designing High Capacity Networks This setting provides you with the maximum radio range possible with the minimum number of Radio Link Modules to cover the wireless network area Figure 30 Large Distance between APs The examples in Figure 31 Medium Distance between APs and Figure 32 Small Distance between APs show you the effect of changing the Distance between APs parameter Although the absolute range of the wireless radio is still the same the Distance between APs setting has virtually reduced the range of the wireless cell by applying different levels of receiver sensitivity 150 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Designing High Capacity Networks e The absolute range of the radio signal from the Access Points RLMs is identified by the gray dotted circles e The reduced virtual range is identified by the colored areas With the new settings for the Distance between APs parameter stations will only defer for radio signals that are received at a level that is equal or higher to the average signal as applicable in the colored areas Messages with a lower signal level are considered to be traffic belonging to another cell so will be ignored wh
203. the following Caution This software may only be used for the applications described in the catalog or the technical description and only in connection with software products devices or components from other manufacturers which have been approved or recommended by Siemens Before you use the supplied sample programs or programs you have written yourself make certain that no injury to persons nor damage to equipment can result in your plant or process Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Prior to Startup Before putting the product into operation note the following warning Caution Before installation and startup read the instructions in the appro priate documentation For ordering data of the documentation please refer to catalogs or contact your local Siemens represen tative Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Preface Purpose of the Operating Instructions These Operating Instructions support you when configuring commissioning and troubleshooting networks including the Industrial Ethernet Wireless LAN RLM Manager and CP 1515 Manager Further Documentation The manuals e SIMATIC NET Industrial Ethernet Twisted Pair and Fiber Optic Networks e SIMATIC NET Industrial Ethernet Wireless LAN Basics e SIMATIC NET Industrial Ethernet Wireless LAN RLM e SIMATIC NET Industrial Ethernet Wireless LAN CP 1
204. the number of frames that have reached the Retry Limit Failed frames will no longer attempt to re transmit lf the Failed Count is 1 or more of the Multiple Retry Count your network may be suffering from interference Use the RLM Manager Remote Link Test Window page 103 to look for either suddenly high noise figures or low SNR values to find the cause of the interference 6 2 8 3 Remote Statistics Tallies Select the Remote tab in the monitor mode Select either one of the interfaces from the pull down menu to display the statistics for the wireless network interface s Then use the following to diagnose link quality 1 Compare the number of In errors with the number of Bridge in packets e When the number of In errors is 1 or more of the Bridge in packets this may indicate that the wireless medium is very busy To verify this assumption also compare the number of packets Out errors with the number of Bridge out packets Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 129 Eliminating Redundant Traffic 130 e When the number of Out errors is 1 or more of the Bridge out packets it is likely that one or more stations suffer form a poor link quality Compare the number of packets Out collisions with the number of Bridge out packets e If the number of Out collisions is 1 or more of the Bridge out packets it is likely that the wireless medium is very busy T
205. thods The CP 1515 Manager offers four monitoring methods e PC Card CP 1515 diagnostics see Diagnose Card page 96 e Link test see Link Test Window page 74 e Site monitor see Site Monitor Window page 81 e Logging measurement data see Logging Measurement Data page 92 The site monitor link test and logging measurement data options are only available when the CP 1515 Manager is installed in Advanced mode see CP 1515 Manager page 19 for more information To start the CP 1515 Manager tool 1 The CP 1515 Manager program starts automatically when Windows is started The CP 1515 Manager icon is displayed on the windows task bar If the program is not running e Select the Start button on the windows task bar e Select Programs and click the Siemens I GATE program group e Next select Client Manager to start the CP 1515 Manager program 2 Click on the CP 1515 Manager icon willl in the taskbar to open the main CP 1515 Manager window pictured in Figure 13 Main CP 1515 Manager Window Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 71 Using the CP 1515 Manager 72 Figure 13 Main CP 1515 Manager Window Client Manager Mm E File Actions Advanced Help CA Current configuration profile X LF Status Connected to network Your Company Network Name Radio connection Excellent Access Point name Channel ael Signal Encryption Off The main CP
206. tion represents a single channel system both station 1 and station 2 share the same medium Station 1 might need to defer communication with the Access Point RLM when it senses that station 2 is already communicating with the Access Point RLM in the neighboring cell Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Advanced Infrastructures As is the case in any roaming environment you must configure all Access Points RLMs in multiple channel configurations with an identical network name The preferred channel separation between the channels in neighboring cells is 25 MHz 5 channels Subject to the number of channels supported by the PC cards CP 1515 available in your country this means that you can apply up to three different channels within your wireless network see Table 2 Recommended Sub Channel Configurations for recommended channel configurations Applying two channels that allow the maximum channel separation will decrease the amount of channel cross talk and provide a noticeable performance increase over networks with minimal channel separation To configure networks with multiple channels refer to Frequency Channel Management page 138 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 31 3 3 32 Setting Up your LAN Administrator Station 1 Introduction SIMATIC NET Industrial Wireless LAN infrastructures are managed from the LAN
207. tion profile in the CP 1515 Manager select the Advanced tab and enable RTS CTS Medium Reservation You can enable RTS CTS Medium Reservation on individual stations i e the setting of this parameter does not have to be the same for all SIMATIC NET IWL equipped devices in your network Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 133 Eliminating Redundant Traffic Figure 25 Medium Reservation Request to Send 6 2 8 6 About the Medium Reservation Mechanism 134 When you enable RTS CTS medium reservation on a suspect hidden station this station and its Access Point RLM will use a Request to Send Clear to Send protocol RTS CTS e The station will send an RTS to the RLM that will include information about the length of the frame that the station would like to transmit see Figure 25 Medium Reservation Request to Send Upon receipt the Access Point RLM will respond with a CTS message to all stations within its range to notify all other stations to defer transmissions for the time frame of the requested transmission Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Eliminating Redundant Traffic confirm the requestor station that the Access Point RLM has checked the medium for availability and has reserved it for the time frame of the requested transmission The CTS process is shown in Figure 26 Medium Reservation Clear to
208. to closing the window 73 1 2 WEP Transmit Key value If you enable WEP encryption you can select one key for wireless data transmissions from the list of WEP encryption key values You can only select a transmit key that has a correct WEP encryption key value assigned Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 171 Wireless Data Encryption In case you specified no more than 2 key values you can only select the transmit key from these two values CAUTION If you cleared the Deny non encrypted Data tick box your RLM may also transmit in non encrypting mode 7 3 1 3 Deny non encrypted Data If you decide to use wireless data encryption you are advised to encrypt all data that will be transmitted via the wireless medium In some cases however you may wish to choose to allow the Radio Link Module also to process non encrypted data as well Examples of such situations could be e Network environments that include both wireless stations equipped with cards CP 1515 that support WEP Encryption and cards that do not support encryption e Network environments where you are about to install a large number of wireless stations using out of the box configurations which by default will have encryption disabled If you would start up such stations with their default configuration these stations would not be able to establish an initial connection to the network since they wou
209. to the log file e For automatic logging click the Start Log button Click the Stop Log button to stop the logging function Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 95 Using the CP 1515 Manager 5 2 5 Diagnose Card If you suspect that your PC card CP 1515 may not be functioning properly you can select Diagnostics in the Advanced menu of the main CP 1515 Manager window to investigate the functionality of the hardware and software of the card The Diagnose Card window allows you to check the software and firmware information configuration information as well as communication statistics To test the PC card CP 1515 click the Test Card Now button on the Card Check tab j NOTE Running the card test will disrupt the normal operation of your PC card CP 1515 which may result in a temporary loss of your connection to the network If the PC card CP 1515 passes all tests the test status will read OK in all fields and the Error Code field will remain blank If an error occurs click the Advice button for more information on how to handle the error 5 2 6 Troubleshooting Site Monitor When the Site Monitor does not display all of the Access Points RLMs that you expected this may be due to one or more of the following reasons 96 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager e Your CP 1515 Manager st
210. ty again ignoring previous results that may have adversely influenced the statistics Help to display general information about the CP 1515 Manager link test To access the on line help system you can also press the function key on your keyboard 5 2 2 2 Test History Tab 80 You can use the Test History tab to display link test results as a line chart You can change the display to include the diagnostic parameters of your choice and a user defined time window You can set the time window to display the information of the last minute last hour or last 24 hours Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager For example if you have an Radio Link Module that shows mysterious performance problems at regular intervals you can run the test history mode for 24 hours to e Determine the exact time the problem occurs in the selected Time window e Analyze what was causing the performance problem without having to watch the dynamic indicators continuously 5 2 2 3 Log Settings Tab You can record the link test measurements to a log file and use this log file to more fully analyze the link quality The measurement data can be logged automatically at regular intervals or manually upon usercommand For more information on log files see Logging Measurement Data page 92 5 2 3 Site Monitor Window The Site Monitor option enables you to display the communications qu
211. u are advised always to use the Deny non encrypted data option default Industrial Ethe rnet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 173 Wireless Data Encryption 73 1 5 Enable Encryption amp Deny non encrypted Data When you select to enable encryption and deny non encrypted data your Radio Link Module will e Only process messages received at its wireless interface when the messages have been encrypted with either one of the four identified keys e Always transmit wireless data using the selected WEP key e Also encrypt all its multicast and broadcast traffic that it will transmit to the wireless medium If your network includes wireless stations configured with a non matching WEP key or equipped with PC Cards that do not support WEP encryption such stations will not be able to establish a wireless connection because they will not be able to understand decrypt crucial network information 73 1 6 Enable Encryption amp Allow non encrypted Data 174 When you select to enable encryption but you cleared the deny non encrypted data check box the RLM will e Process all messages received at its wireless interface regardless whether the messages have been encrypted with one of the identified keys or not e Encrypt wireless transmissions based on the encryption settings of the addressed station e If the addressed station does use WEP encryption the Radio Link Module will send the message
212. ue data connections with such Access Points RLMs This means your computer did not yet e Walk around e Use the AP Names tab When you are running the CP 1515 Manager tool in site monitor mode you can use the AP Names tab to assign the Radio Link Module name on the fly to any Access Point RLM MAC address that you spot When you spot Access Points RLMs identified as unknown proceed as follows 1 Open the tab AP names 2 Enter a MAC address or double click on one of the MAC addresses in the list 3 Enter a name that allows for easy identification of this Radio Link Module in the Access Point RLM Name field 4 Next click the Add to Table button to associate the name with this MAC address 5 Repeat steps 2 through 4 for all other MAC addresses 6 When finished return to the Site Monitor tab to proceed with the site monitor survey When walking throughout the wireless networking environment you may see new MAC addresses appear when approaching other Access Points RLMs If that is the case repeat the steps described above to complete your Access Point RLM Name table Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 91 Using the CP 1515 Manager The Radio Link Module names you assign to a spotted MAC address will be saved into an ASCII file that you can use to Share the file with other LAN Administrators that use the CP 1515 Manager tool to monitor performance of the wire
213. uthorized To disable access control click the Delete All button The MAC address window will read lt All will be permitted gt Click OK to return to the Access Control tab Click OK again to save the new configuration to the RLM and to return to the main RLM Manager window Optional Save the configuration to a local back up file cnf as described in Step 4 Create a Back up of the Configuration page 66 Update the Access Point Configuration Record to reflect this change Optional Modify the access control settings for all other Radio Link Modules Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Securing Access to Wireless Data 7 2 8 Enabling RADIUS Server Access Control RADIUS Server Access Control is a method where you use Radio Link Modules in combination with a third party RADIUS server To use RADIUS Server Access Control you will need to 1 Setup a RADIUS server 2 To configure a RADIUS server do the following The list of MAC addresses should be entered in the server s users file database along with the password authorization password Itis also necessary to build a list of IP addresses of all Radio Link Modules that will use the RADIUS server This list should be entered in the server s station file database along with the authorization password 3 Build a list of MAC addresses of all wireless stations that you wish to authorize to esta
214. vior and connect to one of the added Access Points RLMs more quickly 148 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Designing High Capacity Networks e Considering the fact that you have added more Access Points RLMs the deferral behavior does no longer need to be as strict in environments where the density of installed Radio Link Modules was fairly low The stations will only defer transmissions when the signal level of a message sensed on the wireless medium equals or exceeds a specific level Messages with a low signal level are not likely to be addressed at the Access Point RLM that services the local cell since the more active roaming behavior should have caused the station to connect to another RLM To support the more active roaming behavior of the wireless stations and to compensate the lower receiver sensitivity changing the Distance between APs parameter should correspond with the actual increase of and more dense placement of your Access Points RLMs The examples listed on the following pages will illustrate the effect of the various Distance between APs configurations In Figure 30 Large Distance between APs you see the standard configuration of networks where Distance between APs parameter has been set to Large e The receiver sensitivity in this mode causes the wireless radio device to defer transmissions for all messages that it senses within its range identified by
215. will use as the basis to configure the other RLMs in your network CAUTION Do not start using your original back up file as template file Any changes you make to the file might impair your ability to fully restore the original configuration of your first RLM if the unit goes out of service Always store back up copies on a separate disk and or location 8 3 3 3 Configuring other Radio Link Modules Having created the template file we can now start re configuring the other RLMs in batch mode For each Access Point RLM the procedure will be as follows 222 Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Configuring Large Networks e Run RLM Manager and connect to the target Radio Link Module e Upload the template file that contains the values that are common for all RLMs from a template file e Set the unique parameters for each Access Point RLM e Save the values to an individual configuration file on disk The detailed procedure is as follows 1 Start the RLM Manager program 2 Select the target Radio Link Module from the list or enter a specific Access Point RLM IP address If the target Access Point RLM is not displayed in the list choose Refresh Radio Link Module List from the RLM menu If the selected Access Point RLM is still using the factory set IP address for example when you are configuring a new out of the box Radio Link Module you will be prompted to change the
216. you the freedom to roam throughout the network while maintaining your network connection This means that your SIMATIC NET IWL hardware will communicate with other vendors IEEE 802 11 compliant wireless LAN products However you may not always be able to use the SIMATIC NET IWL software suite in combination with other vendors products due to the following reasons e The IEEE 802 11 standard for wireless LANs does not identify standards for diagnostic or management tools i e each vendor may have designed a customized tool to configure and or manage the IEEE 802 11 wireless network Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 69 Introduction 70 e The Siemens SIMATIC NET IWL software suite has been designed to offer an enhanced set of tools to monitor and analyze a wide range of diagnostic tallies Some of these tools require additional functions in the hardware that by default is supported by all Siemens SIMATIC NET IWL products but may not be supported by the other vendors products If other vendors products do not let you display the communications quality or configuration parameters using the SIMATIC NET IWL software suite please refer to the documentation that was shipped with the other vendors product Industrial Ethernet Wireless LAN RLM Manager CP 1515 Manager C79000 G8976 C171 01 Using the CP 1515 Manager 5 2 Using the CP 1515 Manager 5 2 1 Monitoring Me

Siemens 420 S V6.0 Cordless Telephone User Manual

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