P300M USER`S MANUAL
Contents
1. Unzip the vComMgr 2 x zip and run the Setup exe to install the utility J Setup exe Virtual Serial Port Setup Completed CO Extract comOcom inf 100 A Extract cncport inf 100 J Extract comport inf 100 Extract comOcom syS 100 Extract vComHost exe 100 Extract vComMgr exe 100 Created uninstaller C Program Files ycom uninstall exe Delete file C DOCUME 1 ebrother LOCALS 1 Temp nsq3 tmp Create folder C Documents and Settings ebrother Start Menu Programs V COM Create shortcut C Documents and Settings ebrother Start Menu Programs COM y Create shortcut C Documents and Settings ebrother Start Menu Programs COM Completed vv Close Click on the menu Start gt Programs gt vcom gt vComMgr the vComMgr runs as the following Y Virtual Serial Port Utility OBRAR Device Tool Help Serial Port Server IP Notes vComMgr takes high privilege to install serial port driver Some free anti virus software may regard it as virus by mistake Be aware of the incorrect warning messages 5 2 VIRTUAL SERIAL PORT CONFIGURATION 5 2 1 ADD SERIAL PORT Before add a virtual serial port please set the corresponding P300M s serial port operation mode with VCOM Server as the following Serial Port Interface Operation Mode Local Pot Server IP Domain Server Port COM1 RS 232 VCOM Server 8001 0 0 0 0 62. Serial Portrait dat o 16 5d Install SoftWare iii a a a 16 5 2 Virtual Serial Port ConfiguratiON comocoocoscnoncnnncnnenanenannnannananano 17 5 2 1 Add Serial Port cccccecseeeeeeeeeeeeeeeeeseueeeeueeeenteeeenensegs 17 52 2 Delete Serial Poltica 19 523 Start CONNECHON ina ce eatou veel dean cocaine eu E a coca ies 19 52 4 Stop Connection 2 A 19 5 2 0 Restart Conne Clon ccoo tds 19 5 2 6 Restart All CONNECHIONS cccce cece cece cess ee eeeeeeeeeeeaaeenees 19 5 2 7 Clear Counters riia raaraa dvicva te A aa A 19 BG A E a a TA 19 5 3 1 Mon itor Dataie nidad race a camaaaeens 19 5 3 2 Scan Online Devices ccccccccecceceeeeceeeeeeeeeeeeeeauueeeenauneees 20 1 INTRODUCTION 1 1 OVERVIEW P300M serial port server is designed to make your serial devices Internet ready instantly P300M device server makes it the ideal choice for connecting your RS 232 485 serial devices such as card readers payment terminals LED wall PLC sensors base station monitor devices etc to an IP based Ethernet LAN making it possible for your software to access serial devices remotely located on a local LAN even on the Internet P300M supports several operation modes including TCP Server TCP Client UDP Server Client Pair Connection ensuring the compatibility of network software that uses a standard network API Winsock BSD Sockets In addition P300M s Virtual COM TTY drivers allow you to set up your COM TTY port soft
3. The original Modbus protocol was not designed for simultaneous requests or simultaneous masters so only one request on the network can be handled at a time When a master sends a request to a slave no other communication may be initiated until after the slave responds The Modbus protocol specifies that masters use a response timeout function to identify when a slave is nonresponsive due to device or line failure This function allows a master to give up on a request if no response is received within a certain amount of time We provide a simple way to set Response Timeout Our serial port server will measure each response time and save the max one which is displayed at the System Information page So when user starts the serial port server at the first time we suggest that let Master Slave communicate for a long time and observe the max response time here say 156ms so 180ms is a good Response Timeout to be set extra 24ms is reserved to reduce risk RX Interval TX Interval Response Port Baudrate Data Parity Stop Flow control Timeout ms Timeout ms Timeout ms com1 115200 afz None y 1 None 5 3 500 COM2 115200 8 None 1 w None 5 3 500 com3 115200 y 8 None e 1 None y 5 3 500 4 1 5 SYSTEM SETTINGS This chapter specifies how to set language reboot device restore factory settings etc 4 1 5 1 LANGU
4. 001 vComMgr maps the serial port server s port to local serial port through IP address and port Server IP not only supports IP address but also supports DNS Virtual Serial Port Utility SerialPort Serveri Port RxBytes txBytes Create Virtual Serial Port Serial Port COM3 X Server IP fisz 68 1 234 Port g Be noticed that the serial port driver will be installed twice The installation process is identical as the following Found New Hardware Wizard Welcome to the Found New Hardware Wizard This wizard helps you install software for comOcom serial port emulator Y _ If your hardware came with an installation CD or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue Next gt Cancel Found New Hardware Wizard Please wait while the wizard searches y combcom serial port emulator Cancel Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for 3 comOcom serial port emulator Click Finish to close the wizard After the driver is installed vComMgr will automatically connect to P300M Each time host computer starts up the connection will be established The virtual serial port works only the connection state is connected vComMgr supports a
5. 1 2 Flow control RTS CTS DTR DSR Signal TxD RxD RTS CTS DTR DSR DCD GND ESD 2KV RS 485 Port number 3 Interface 3 81mm terminal block Max baud rate 230 4 Kbps Data 5 6 7 8 Parity None Even Odd Space Mark Stop 1 2 Signal Data Data GND ESD 2KV Max slaves 32 Software Protocol IP TCP UDP ICMP DHCP TFTP TELNET DNS HTTP Tools vComMegr virtual serial port tools OS Windows XP 7 2003 Linux Kernel 2 4 x 2 6 x 3 0 x Mechanical Aluminum case 1 mm Power 6 to36 VDC Operating 40C 80 C temperature Notes User can only select one of RS 232 RS 485 interfaces to connect your device WEB console provides the way for configuration for details please refer to the chapter Mode Settings 2 GETTING STARTED 2 1 CONNECTING TO THE NETWORK P300M s default IP address is 192 168 1 222 Please visit http 192 168 1 222 to access P300M Both user name and password are admin 2 2 CONNECTING TO THE SERIAL DEVICE Connect the serial data cable between the P300M and the serial device User must select RS 232 RS 485 interface via WEB console when the corresponding port is connected to serial device For details please refer to the chapter Mode Settings DCD RxD TxD DTR GND DSR RTS CTS Rl DB9 Male 2 3 CONNECTING TO THE POWER Connect the 6 36 VDC power line with the P300M s terminal block If the power is properly supplied all Rx Tx LEDs will show a blinking green color unti
6. AGE SETTINGS P300M currently supports two languages Simplified Chinese and English After saving the selected language please refresh the page or press F5 button to make the browser load the new language Language Settings Language 4 1 5 2 REBOOT DEVICE Press the Reboot Device to reboot the system Reboot Device Click on the button will reboot the system Reboot Device 4 1 5 3 RESTORE FACTORY SETTINGS Press the Restore Factory Settings button to load default settings Be noticed that the previous settings will be lost after this operation Restore Factory Settings Click on the button will make system restore to factory settings Restore Factory Settings 4 1 5 4 WEB ADMINISTRATION For security reason user may need to change http server s port After port is changed you should reboot the system and then input http 192 168 1 222 XXXX in your web browser XXXX is the new port WEB Administration WEB Port 4 1 5 5 CHANGE PASSWORD Input New Administrator and new Password to change Change Password To change administrator name amp password Old Administrator Old Password New Administrator New Password Conti Password C 4 1 5 6 UPGRADE FIRMWARE Upgrading firmware through network greatly improve the maintenance of serial port server at field Before upgrading firmware please download firmware file say R3 0 05 bin and save i
7. P300M USER S MANUAL Contents INTO dUC ION rai a A A A E 3 VTA OVA A A E Da 3 1 2 ProductFeallreS amic aia 3 1 3 Product pecitica lO Sica trocito ads 4 A A nnes iad E ee E a E 5 2 1 Connecting to the Network i e ccsiescveesees ecenvane ve antes or na 5 2 2 Connecting to the Serial dlevice oomocooccosncocnoncnancnancnncnnnanannnnnos 5 23 gt Connecting to the POWER A nance 5 2 4 RESET Button aar a vase eens a 5 25 LED NdiCatorS iros iii radic 6 Operation MOS sss cases cere deveeecsoe ese ANUN decuebenereteedeekseee cues ee eeeekeus teers s 7 34h TOP Server Mode iii A A 7 3 2 TOP Server Ext MOde rica 7 3 3 Telnet Server Mode oooccccocccnncnncncnnnancnana nan ca anar rr 7 34 TOP Glient Mode aa Clade a aa a a aaa 7 3 5 TCP Client Ext MOode snsssssssnnsnnsnnsnnsnnsnunnunnuanssnnnnnsnunnunnunnan 7 36 UDP Server Mode nrin iii a TE EE E A 8 3 7 UDPGlientMode inicia 8 3 8 VGOM Server M da aate a a a a rr 9 39 RTU Slave Mode cexiriracaon n naa aa ae 9 3 10 RTU Master Mode 00ccccccccccccccnacaan nan eia 9 3 11 Disabled MOde viii a a ew a a ia 9 Configuring DEVICS sicooconmorainonr corn E ETA AA cee 10 4 1 WEB Console Configuration ici ce estes 10 4 1 1 System Information wees cs essecveceve ces rc 10 4 1 2 Networking Settings 2 ici siearisesneed 11 41 3 Mode OCIO Sara cn EEEE 11 4 1 4 Serial Port Settings sesessssunnnnnnsnnnnnnnnrnrnrnrnrnrnnnrnrnsrsnns 12 41 5 System SCUINGS a e eerie 13 Virtual
8. P300M provides a unique IP Port address on a TCP IP network each TCP local port corresponds to a P300M s serial port The P300M waits passively to be connected by the host computer allowing the host computer to establish a connection with and get data from the serial device This operation mode also supports up to 6 simultaneous connections so that multiple hosts can collect data from the same serial device at the same time The data is transparently sent and received by P300M 3 2 TCP SERVER EXT MODE The difference with TCP Server mode is that it only supports master slave mode TCP client runs as a master and sends command to serial port server then serial port server sends the command to serial device working as a slave and waits for the response for details about response timeout setting please refer to chapter Serial Port Settings After serial port server receives response data it ONLY sends the data the the TCP client which sends the commana it will not copy the data to other clients 3 3 TELNET SERVER MODE Console management is commonly used by connecting to RS 232 ports of routers switches and UPS units Telnet server works similar with TCP Server except that it parses tenet protocol 3 4 TCP CLIENT MODE In TCP Client mode the P300M can actively establish a TCP connection to a pre defined host computer before serial data arrives After the data has been transferred the P300M will disconnect from the ho
9. S Server 2 8 8 8 8 4 1 2 NETWORKING SETTINGS This page configures P300M s networking settings If you accidently set an invalid IP and reboot the device you could press reset button for 5 seconds to restore factory settings or configure the networking via serial console for more information please refer to chapter Serial Console Configuration If the IP address is retrieved via DHCP Dynamic IP the vComMgr utility provides the feature to scan online devices Networking Settings Method Static IP Y IP Address 192 168 1 222 Netmask 255 255 255 0 Gateway 192 168 1 1 First DNS Server 208 67 222 222 Second DNS Server 8 8 8 8 Notes The settings in this page take effect after device reboots 4 1 3 MODE SETTINGS Each P300M s serial port support RS 232 and RS 485 Before connecting serial device to P300M user should select the interface and operation mode The operation modes are specified in details in chapter Operation Mode Local Port and Server Port are a bit confusing When operation mode is configured as server mode P300M will listen at the port and accept incoming connection and data When operation mode is configured as client mode the local port will be bound as source port Remote host computer may identify the serial port by IP and source port If local port s value is zero it means that user would let system automatically gen
10. ation from Serial Device i e PLC that it is on Similarly DTR indicates to Serial Device that the P300M is on In this flow control mode P300M sends data to serial device only it detects DSR voltage level is high 3 15VDC lt gt DSR CTS In this flow control mode P300M sends data to serial device only it detects both DSR and CTS voltage level is high 3 15VDC Be noticed that user should connect P300M s RTS signal to Serial Device s CTS signal and P300M s DSR signal to Serial Device s DTR signal when flow control is selected Please refer to the chapter Connecting to the serial device for DB9 signal definition RX Timeout The maximum time allowed elapsing between the arrivals of two bytes on the Serial Port line in milliseconds During a Read operation the time period begins when the first byte is received If the interval between the arrivals of any two bytes exceeds this amount the Read operation is completed and any buffered data is sent to TCP UDP stack Zero means Read operation returns immediately TX Timeout The maximum time allowed elapsing between the arrivals of two bytes on the TCP UDP stack in milliseconds During a Write operation the time period begins when the first byte is received If the interval between the arrivals of any two bytes exceeds this amount the Write operation is completed and any buffered data is written to serial port line Zero means Writing buffered data immediately Response Timeout
11. dding a max number of 128 virtual serial ports Y Virtual Serial Port Utility Device Tool Help Serial Port Server Port RxBytes txBytes 0 192 168 1 234 Connected When installing serial port driver at WIN7 the system may prompt a Windows Security warning be sure to select installing the driver The warning dialogue box may be prompted four times do as the same way Notes To make all VCOM work correctly it is strongly recommended to reboot host computer when installing multiple virtual serial ports 5 2 2 DELETE SERIAL PORT Before deleting VCOM please make sure that no application is opening the serial port then select Device gt Delete VCOM menu to delete the virtual serial port the whole process may take several seconds please be patient to wait 5 2 3 START CONNECTION Start connecting to serial port server when the connection is previously stopped 5 2 4 STOP CONNECTION Stop the connection When host computer starts next time the connection will be also at the stop state 5 2 5 RESTART CONNECTION Restart the connection to serial port server 5 2 6 RESTART ALL CONNECTIONS Restart all connections in the list table 5 2 7 CLEAR COUNTERS Clear RX and TX counters 5 3 TOOLS 5 3 1 MONITOR DATA Select the serial port to be monitored then press the menu Tool gt Monitor Traffic a dialogue box will we displayed as the follow
12. erate UPD TCP source port P300M also support connecting to server by DNS when the operation mode is client Operation Mode Settings When local port is set with 0 and operation mode is configured as client e g TCP client UDP client then the local port will be automatically generated by the sytem If local port is non zero the value will be bound as local port Notes Please reboot the device for the settings in this page to take effect Serial Port Interface Operation Mode Local Port Server IP Domain Server Port COM1 RS 232 y VCOMSener 8001 0 0 0 0 6001 COM2 RS 232 VCOM Server 8002 0 0 0 0 6002 com3 RS 232 VCOMSener 8003 0 0 0 0 6003 4 1 4 SERIAL PORT SETTINGS RS 232 baud rate supports 50bps to 921600bps and RS 485 s max baud rate is 230400bps Data bits are 5 6 7 and 8 Stop bits are 1 and 2 Parity options are None Even Odd Space and Mark Flow controls mean hardware flow control There are NONE CTS DSR DSR CTS for selection lt gt NONE no flow control Factory default lt gt CTS Signal RTS Request To Send from P300M and CTS Clear To Send from the Serial Device are used to control In most Asynchronous situations RTS and CTS are constantly on throughout the communication session In this flow control mode P300M sends data to serial device only it detects CTS voltage level is high 3 15VDC lt gt DSR Signal Data Set Ready DSR is an indic
13. ing This tool is very useful to debug and trace the communication between application and serial device Monitor traffic 1 702643 1 711887 7 295398 7 300650 11 387423 11 396286 11 636916 11 646213 12 658365 12 667813 12 878691 12 888643 Baudrate 115200 8 N 1 RTS 1 DTR 1 Flow Control CTS Modem Status DSR 1 CTS 1 DCD 0 61 61 62 62 62 62 63 63 63 63 0 1 2 3 4 5 6 7 8 9 a a D a ed ea me O 5 3 2 SCAN ONLINE DEVICES Compare with the traditional online devices scanning the following feature to scan online devices could cross different subnets Scan online devices IP Address WEB Port sn Device Num Firmware Version 192 168 1 234 OC3A00000001 Clear Start 1p 192 168 1 Endp 192 168 1 255
14. l the system is ready at which time the Rx Tx LEDs will be off Notes Grounding and wire routing helps limit the effects of noise caused by electromagnetic interference Run the ground connection from the ground screw to the grounding surface prior to connecting devices 2 4 RESET BUTTON When user forgets password or IP address and wants to restore the factory settings the reset button is the simplest way to accomplish that When P300M powers on please press reset button for at least 5 seconds all three Rx Tx LEDs will blink one by one until the factory settings are restored 2 5 LED INDICATORS The top panel has four LED indicators as described as the following table D Name Specification COM3 RS 232 RS 485 is sending or receiving data jor pa COM2 RS 232 RS 485 is sending or receiving data for Noda COM1 RS 232 RS 485 is sending or receiving data No data Power on Power off LED group specification Group Action Specification System is booting slowly blink for 3 seconds System is upgrading firmware COM3 Rx Tx COM2 Rx Tx System is at runtime state and waits fro serial COM1 Rx Tx console input at COM1 The Rx Tx LEDs will be solid green for 3 seconds System is restoring factory settings the reset must be pressed for at least 5 seconds 3 OPERATION MODE 3 1 TCP SERVER MODE In TCP Server mode the
15. ot shows the page in Google Chrome browser Q Inter Device Networking Y gt O 102 168 1 222 INTERNET OF DEVICES System Information Networking Settings sy sees MONTES Mode Settings Serial Port Settings System Settings Model Device Number Serial Number Boot Version Firmware Version Building Date IP Address Netmask Gateway DNS Server 1 DNS Server 2 P300M 3100 0C3A00000001 21 3 0 05 2012 05 06 13 52 34 192 168 1 222 255 255 255 0 192 168 1 1 208 67 222 222 8 8 8 8 4 1 1 SYSTEM INFORMATION System Information page shows P300M s basic settings as the following pictures Connection State Serial Port Operation Mode IP Address COM1 RTU Slave 0 0 0 0 COM2 Disabled 0 0 0 0 COM3 Disabled 0 0 0 0 Performance Counter Received Max Response Serial Port Bytes Sent Bytes Timecms COM1 0 0 0 com2 0 0 0 com3 0 0 0 Clear Max Response Time is measured during the communication It is a very important reference to set Response Timeout at the Serial Port Settings page This parameter is only valid when the corresponding serial port operates as RTU Slave RTU Master or TCP Server Ext mode System Information P300M 3100 0D1600000202 2 1 Model Device Number Serial Number Boot Version Firmware Version 3 0 51 Building Date 2013 03 01 09 37 04 IP Address 192 168 1 222 Netmask 255 255 255 0 Gateway 192 168 1 1 DNS Server 1 208 67 222 222 DN
16. st computer by using the TCP alive check time The keep alvie time interval is 10 seconds and the total timeout is 2 minutes P300M can also connect to remote host computer via DNS such as the following settings Serial Port Interface Operation Mode Local Port Server IP Domain Server Port COM1 RS 232 TCP Client 8001 abc dyndnsorg 6001 3 5 TCP CLIENT EXT MODE TCP Client EXT mode is the extended mode of TCP Client When TCP Client connects to remote host computer at Internet both source IP address and source port may be translated to a public IP and port NAT So host computer can t distinguish a serial port through IP and port when this kind of application is encountered As soon as TCP client connects to host P300M will send the following 18 bytes of data for host to detect serial port corresponding to the P300M Byte O Byte 1 Byte 2 Byte 3 Byte 4 Byte 15 Byte 16 Byte 17 OxAA OxFB Length 1 Serial Number Serial Port CRC Number Byte 0 Preamble code OxAA Byte 1 Preamble code OxFB Byte 2 Payload length it calculates from byte 3 to the byte before CRC In this case the payload length is 14 Byte 3 Command code it is always 1 Byte 4 15 SN in ASCII format the size is 12 bytes Byte 16 Serial port number which starts at 1 Byte 17 CRC checksum of the whole payload calculates from byte 3 to the byte before CRC The CRC is the two s complement of
17. sum of all bytes in 8 bits The following code is an example of crc verification in C language unsigned char crc length i temp if buf O OxAA buf 1 OxFB buf 3 1 Return fail code return len buf 2 temp 0 for i 0 i lt len i temp buf 3 i crc temp if cre buf 17 Return fail code return CRC is correct do whatever you want to do next 3 6 UDP SERVER MODE Compared to TCP communication UDP is faster and more efficient UDP Server receives data from UDP client and sends it to serial device 3 7 UDP CLIENT MODE UDP Client receives data from serial device and send it to host computer by IP address and port which are set at web page The target address could be an IP address broadcast IP address network segment IP address or a domain name for example if the target IP address 10 1 1 1 50 it denotes that the serial port server will send the data one by one through UPD to the IP 10 1 1 1 to 10 1 1 50 If the target address is only one host there is no need to add the subfix XXX Be noticed that two consecutive UPD packet interval is about 1 ms if user wants to send data to 50 hosts it will take about 50ms to complete this action For details please refer to Mode Settings 3 8 VCOM SERVER MODE Compared to TCP Server mode VCOM Server mode especially handles RTS CTS DTR DSR flow control and baudrate settings and it is
18. t in a directory Then download the tftp server we strongly recommend user run tftd32 as tftp server which is open source User could visit its website http tftpd32 jounin net to freely download it The main Ul is as the following Press the Browse button to select the directory where the firmware file is saved the tftp server is easily setup Current Directory E 4 y Browse Server interface 492 168 1 123 y Show Dir Tftp Server Tftp Client DHCP server Syslog server Log viewer start time progress a Settings Then input the firmware file name and tftp server IP address in the webpage as the following page press Upgrade button then P300M will automatically download firmware and upgrade it In the upgrading process all three Rx Tx LEDs will fast blink After upgrading successfully finish Rx Tx LEDs will be solid green for 3 seconds then be turned off The whole process takes about 20 seconds be patient to wait Finally click onthe System Information page to check the newly upgraded version Upgrade Firmware TFTP Server 1921681123 Tma P300 FW bin Name Notes Don t power off P300M when it is in upgrading process 5 VIRTUAL SERIAL PORT The virtual serial port utility vComMgr supports 32 Bits Microsoft Windows series Windows XP WIN7 2003 Server and tty driver supports Linux kernel 2 6 x and 3 0 x 5 1 INSTALL SOFTWARE
19. used with virtual serial port vComMgr utility together vComMgr runs as a TCP client The driver establishes a transparent connection between host and serial device by mapping the IP Port of the P300M s serial port to a local COM TTY port on the host computer When the connection is successfully established and software at host computer opens the virtual serial port all configurations will be synchronized with serial port server 3 9 RTU SLAVE MODE ModBus RTU Slave mode is used to connect to the serial device which runs as RTU Slave Serial port server runs as a TCP Server 3 10 RTU MASTER MODE ModBus RTU Master mode is used to connect to the serial device which runs as RTU Master Serial port server will connect to the remote TCP Server which is also called Modbus TCP Slave 3 11 DISABLED MODE When the Operation Mode for a particular port is set to Disabled the port will be disabled If a serial port is not used it is recommended that port be configured with Disabled 4 CONFIGURING DEVICE User could select web console or serial console to configure P300M The web console is the most user friendly way to configure the P300M Serial console is mainly used to configure P300M s networking 4 1 WEB CONSOLE CONFIGURATION Please open your web browser and input http 192 168 1 222 the browser will prompt a dialog box to let you input user name and password both user name and password are admin The following snapsh
20. ware to work over a TCP IP network in no time This excellent feature preserves your software investment and lets you enjoy the benefits of networking your serial devices instantly 1 2 PRODUCT FEATURES Higher price performance ratio in its class of RS 232 RS 485 serial port servers 32 bits ARM Cortex M3 CPU 3 ports of RS 232 support RTS CTS DTR DSR flow control 3 ports of RS 485 with terminal block easy for field deployment ESD 1 5KV protection lighting stroke protection Wide power input voltage ranging from 6 to 36 VDC Terminal block power with polarity reverse protection Run the independently developed Real Time OS optimized for networking traffic Support Telnet Server TCP Server TCP Client TCP Client Ext UDP Server UDP Client VCOM Server operation mode TCP Client and UDP Client modes support DNS server Y Support ModBus RTU Slave RTU Maskter mode and RTU Slave supports max 6 connections Y Any two serial ports could be locally connected via TCP Server and TCP client mode LN NNR SON SSS device at remote field Configuration via WEB Telnet serial console Windows Linux virtual serial port utility Upgrading firmware through tftp protocol greatly improve the maintenance of 1 3 PRODUCT SPECIFICATIONS Ethernet 10 100Mbps RJ45 RS 232 Port number 3 Interface Male DB9 Max baud rate 912 6Kbps Data 5 6 7 8 Parity None Even Odd Space Mark Stop
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