absolute rotary encoder with ethernet tcp/ip and udp interface user
Contents
1. data transmission The hub connects different network segments e g in an Ethernet net work IP address allow a logic addressing from computer in a network The Internet Protocol is widespread in computer networks It is the im plementation of the internet layer of the TCP IP model Transmission rate or baud rate million bits per second Acronym OPTOCODE name of an encoder series manufactured by POSITAL The Open System Interconnection reference model is a open layer model for the organisation of a communication The Point to Point Protocol will be needed for a connection establish Page 19 UMUS OCD ETA1 SMTP Switch TCP TCP Client UDP POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Simple Mail Transfer Protocol managed the transmission of e mails segments in a local network Unlike a hub a switch uses stacks to avoid network collisions sion protocol in a network coder transferred in a reliable way Version 05 09 Page 20 ment It enables the transmission between different network protocols A switch is an electronic device to connect computers e g network The Transmission Control Protocol is a connection orientated transmis MS DOS program available from FRABA to communicate with the en User Datagram Protocol is utilized to send data that does not need to be UMUS OCD ETA12. value and a time stamp These can be used in arbitrary combinations The following functions of the absolute rotary en coder can be programmed directly via the Ethernet connection Used scope of physical resolution Total scaled resolution Preset value Code sequence Complement There is no specific software required to initiate and use the absolute rotary encoder because the sen sor can be read out and programmed by any stan dard web browser For this purpose the absolute rotary encoder contains a web server which pro vides HTML documents with embedded Java ap plets These documents are a widely self explanatory graphical user interface GUI that is described in detail in chapter 2 The automated data transfer with a control system is done with TCP IP by simple plain text commands and data in ASCII format UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 1 2 Ethernet The present developments in the field of Industrial Ethernet are based on the vision of an integrated access of all data of a company through a uniform communication system In higher levels of enter prise communication Ethernet is the main medium of data transfers Combined with other IT technolo gies it is internationally standardized In the long run automation engineers will benefit from the rapid technological progress in the mass markets of IT and web technologies Ethernet technically provides a system with higher data
3. will still be sent once you press enter The Java program can be finished with CTRL C C fraba ethernet gt java tcpcl 18 10 10 10 6000 Connected to server 16 16 16 16 runt BOS ITION 26969556 4 5 Advanced functionality In the subdirectory advanced on our CD there is a version of the TCP client with enhanced func tionality e the time from the command till the encoder issues an answer can be measured in steps of 10 ms This can be switched on off using time notime e the binary values transmitted by the encoder can be transferred to ASCII again if it does Version 05 09 Page 14 not contain 0 or n This can be switched by binary ASCII it will be automatically switch ed when the encoder is switched from to bi nary mode e Scrolling of the output can be turned on off via scroll noscroll e new renews the connection to the encoder e exit will close the TCPClient application UMUS OCD ETA1 4 6 Parameters 4 6 1 Commands Important Please note spaces upper and lower case lt Value gt means the parameter to enter All POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL the output value You can change and read the settings of the encoder by using the following com commands and parameters have to be entered in mands one line and started with lt ENTER gt Value means Commands Run set lt Variable gt lt Value gt read lt Variable gt Version 05 0
4. 9 Remarks This command will order the encoder to send a position value regardless of the time mode This command will set a variable to a given value If successful the encoder will answer in the form lt Variable gt lt Value gt else an error message will be issued All variables modes are stored in the internal flash a few seconds after they were set After the value was saved the message Parameters successfully written is issued to all connected TCP Clients If the encoder is turned off while writing to the flash the process can damage the flash and destroy the encoder program Please take care under all circumstances that the encoder is not turned off while it is writing to the flash This command will read out a variable from the encoder The encoder will answer in the form lt Variable gt lt Value gt Page 15 UMUS OCD ETA1 4 6 2 Variables Variables UsedScopeOfPhysRes TotalScaledRes CountingDir Preset Offset TimeMode Version 05 09 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Remarks Values Specifies the part of the physical resolution used for the encoder in physical steps If e g for an encoder with a resolution of 8192 steps per revolution 16384 is chosen the encoder will count 8192 steps per revolution if TotalScaledRes is set to the same value as UsedScopeOfPhysRes and start with zero again after 2 revolutions If this value is not set to a value which re
5. POSITAL FRABA 192 168 036 cyi 8 9 0 1 2 3 4 5 6 7 8 0 8 0 8 0 8 0 8 0 8 0 8 0 58 0 168 0 80 80 t 3 3 4 4 4 4 4 4 4 4 L ABSOLUTE ROTARY ENCODER WITH ETHERNET TCP IP AND UDP INTERFACE USER MANUAL FRABA Inc 1800 East State Street Suite 148 Hamilton NJ 08609 Phone 1 609 750 8705 Fax 1 609 750 8703 www posital com info posital com POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Imprint FRABA Inc 1800 East State Street Suite 148 Hamilton NJ 08609 USA Phone 1 609 750 8705 Fax 1 609 750 8703 www posital com info posital com Copyright The company FRABA POSITAL claims copyright on this documentation It is not allowed to modify to extend to hand over to a third party and to copy this documentation without written approval by the company FRABA POSITAL Nor is any liability assumed for damages resulting from the use of the information contained herein Further this publica tion and features described herein are subject to change without notice Version 05 09 Page 2 Alteration of Specifications reserved Technical specifications which are described in this manual are subject to change due to our perma nent strive to improve our products Document information Documentname UMUS OCD ETA1 Versionnumber 05 09 Author Reiner Batjer Service Phone For technical support questions and suggestions for improving our products and documentations
6. al TX 1 2 Rx Tx 3 4 Rx Rx 2 1 TX Rx 4 3 Tx UMUS OCD ETA1 2 4 Diagnostic LED s LED Rx1 Link1 Collosion1 Rx2 Link2 Collosion2 Error Run Version 05 09 Err Run Rx1 Coll Linki _ PWR Color Green Yellow Green Red Yellow Red Red Green POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Description for LED on Incoming and outgoing traffic for port 1 Link to another Ethernet component for port 1 Ethernet oS TCP IP Rx2 A Link2 Col2 S ff Port 1 S o Port2 lt Page 9 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP 3 Programming 3 1 Programming of Parameters USER MANUAL The encoder is able to provide three different kinds of output data the position value a velocity value and a time stamp These can be used in arbitrary combinations Parameter Used scope of physical resolution parameter 1 Total scaled resolution parameter 2 Code sequence Preset value Description Specifies the part of the physical resolution used for the encoder in physical steps If e g for an encoder with a resolution of 8192 steps per revolution 16384 is chosen the encoder will count 8192 steps per revolution if Total scaled resolution is set to the same value as Used scope of physical resolution and start with zero again after 2 revolutions If
7. ata trans fer Http RFC 2068 and SMTP MIL STD 1781 be long to layer 7 of the OSI model and allow to trans fer data and documents via web browser or to send e mails UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 1 4 UDP User Datagram Protocol is utilized to send data that does not need to be transferred in a reliable way The UDP packet is encapsulated in an IP packet which in turn is encapsulated in a PPP packet Both UDP and IP have checksum octets and the PPP packet has its FCS octets however this can only guarantee that the data and the destination are correct If a packet is lost it will not be resent using UDP this issue is only addressed by the TCP pro tocol 1 5 OSI Modell Layer 7 Application Layer 3 SMTP FTP HTTP SEN 6 Presentation Application Layer 5 Session Layer 4 Transport Layer TCP and UDP Data rensport 3 Network Layer IP and IPX 2 Data Link Layer Ethernet 1 Physical Layer 1OBASET 100BASET Cable Version 05 09 Page 6 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 2 Hardware set up and Ethernet Connection 2 1 Network Topology Using Ethernet there are different kinds of topolo gies possible The connection of the encoder can be made both directly to the computer with a net work card or indirectly with a switch hub or compa ny network see figure below If you use a direct connection to a com
8. ate Binary Browser CAT5 CRC EMC Ethernet Fast Ethernet Term FCS Bytes Flash HTML HTTP Hub IP Adresse IP Protokoll Mbit OCD OSI Modell PPP Packet Version 05 09 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Explanation Transmission line with 10 Mbit data transmission rate Transmission line with 100 Mbit data transmission rate American Standard Code for Information Interchange ASCII describes as code the correlation from digital integers to a normal font described character Script program for MS DOS Transmission rate it display the transmission bits per second Numeric system with value 0 or 1 Software program to display HTML Sides on different operating systems Linux Unix Windows Terminations for transmission rates up to 100 Mbit The cyclic redundancy check is a method from the information technol ogy to control a checksum for data to reduce errors by the transmis sion Electromagnetic compatibility there are rules to verifying devices Ethernet is a computer network technology based on frames Transmission technology with 100 Mbit transmission rate Explanation The Frame Check Sequenz Bytes are a 32 Bit CRC Checksum Internal memory saved data will be available after power down The Hypertext Markup Language is a document format used in the World Wide Web to be displayed by a browser The Hypertext Transfer Protocol is a stateless transmission protocol for
9. call our telephone line 49 221 96213 0 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 1 Introduction vas cccstscsccsseccccsssesssesndesesacandeanscatsccnsecs 4 1 1 Absolute Rotary Encoders eeeeeeeees 4 12 Ethernet uoin 5 123 TCPAP criei ean ee 5 1 4 UDP eeina ene 6 2 Hardware set up and Ethernet Connection 7 2 1 Network Topology ccceessseeetesseeeeeeneeeeees 7 2 2 Connecting an Absolute Encodet 00 8 2 3 Ethernet Cables 0 ecceceeeeeseeeeeeeeeseneeeeeeeee 8 2 3 1 RJ45 M12 crossed eccere 8 2 3 2 RJ45 M12 straight ceceecereeereeees 8 2 3 3 M12 M12 CrOSSed ce eeesceeeeeneeeeeeneeeeeeee 8 2 4 Diagnostic LED S eee eeseeeeeeneeeeteneeeeeees 9 3 PrOGraMmMinG seccsssseeseseeeessseeeessseeeeeneeeenens 10 3 1 Programming of Parameters ccceceee 10 3 2 Operating by the integrated Web Server 11 3 3 E mail and Network Configuration 12 4 Operating by TCP IP Command 04 13 4 1 IMtrOUCTION wae sioccesien nese eel ieee 13 4 2 InStallathonmiesse iciseiieiesveee eee deel 13 4 3 PATH Variables iiien 13 4 3 1 MS DOS Win95 Win98 WinME 13 4 3 2 WinNT3 51 WinNT4 Win2000 WinXP 14 4 4 Operating eee eeeeeeeeeeseeeeeeeeseeeeneeeseeeeseees 14 Version 05 09 Page 3 4 5 Advanced functionality eee eeseeeeneeeeees 14 4 6 Parameters ce eeeceeeseseeeeeeneeeese
10. e Encoder will send the output values only if either the position or the velocity has changed The values are checked every 5 ms to reduce unwanted network traffic Page 16 UMUS OCD ETA1 Variables OutputMode OutputType CycleTime IP NetMask Gateway OwnEmailAddr RmtEmailAddr SMTPServerlIP Verbose Version 05 09 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL Remarks Values Possible output modes are Position_ Velocity_ Timestamp_ where the components mean e Position Encoder will send a scaled Position value e Velocity Encoder will send a velocity Value steps s e Timestamp Encoder will send a timestamp in microseconds starting with 0 at the startup of the encoder As the counter is a 32 Bit value the timestamp will reach zero again after approx 1 2 hours Possible output types are e ASCII Encoder will send ASCll letters in the form POSITION lt POSITION gt VELOCITY lt VELOCITY gt TIME STAMP lt TIME gt e ASCIIl_SHORT Encoder will send ASCll numbers in the form lt POSITION gt lt VELOCITY gt lt TIME gt separated by spaces e BINARY Encoder will send 32 bit binary values without any separator between the values States the time in ms for the cyclic time mode Can have values between 1 ms and 999 999 ms Sets the IP address of the encoder and must be a valid IP address in the form a b c d with a b c d from 0 to 255 Attention The IP address will only be acti
11. eTime OO set ft o Age of Values 100 ms Encoder Messages Offset 229657 Modes Parameters successfully written Setting Cycle Time to 1 ms TimeMode OutputMode OutputType CycleTime 1 Parameters successfully written C Polled I Position ASCII cos I Velocity C A_SHORT Cyclic Timestamp C Binary Send Parameters per E Mail Reset connection 0 2004 FRABA POSITAL GmbH Cologne Germany hitpvituww posital coms Applet MainControllerPanel started Version 05 09 Page 11 Auto Copy ENABLED UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 3 3 E mail and Network Configuration The rotary encoder can be used either with the wired IP 10 10 10 10 or the software IP address which can be programmed A switch to choose either option is located in the connection cap If the switch 2 is in position off the programmable IP has been chosen Both Hex rotary switches and switch 1 are not in use for this encoder The configuration window can be accessed via the Main Controller Site or the start page FRABA POSITAL Optical Encoder WebControl Mozilla Firefox A laj xj Datei Bearbeiten Ansicht Gehe Lesezeichen Extras Hilfe O ca KE a gt S amp E http 198 100 100 55 webserver networkConfig networkConfig html z F Go G E3 L FRABA POSITAL Optical Encoder We o POSITAL FRABA Sat benu E MAIL AND NETWORK CONFIGURATION Main Controller Site Netw
12. ew Edit Delete CE cee If you use a Windows PC you can try the following connection to the sensor Go to the command prompt DOS and type in ping lt computer name gt or ipconfig In response you get the IP address of your computer If the encoder IP address is not located within your subnet mask you will need to prepare the data transfer to the encoder by entering the command route add lt lP sensor gt lt lP computer gt Maybe are administrator rights necessary Otherwise your PC control system will Version 05 09 Page 13 try to reach the encoder via your computers standard gateway The default IP address of the sensor is 10 10 10 10 You can check the connection to the sensor with the command ping lt lP sensor gt 4 2 Installation To communicate with the Encoder using our example tools tcpcl or updcl a Java runtime environment is required on your PC If you have not installed Java you can get it from our CD look under the section accessories You can also download the latest version from http java sun com products j2se Copy the FRABA Java programs which you can find on our CD in the folder CD_Manual Tools EthernetEncoderTools or on our web site http www posital de products ocd ethernet etherne t html onto your hard disk e g in the folder c fraba ethernet Afterwards you need to set up the PATH variable for the Java installation and the FRABA Ja
13. field of the browser The factory setting for the IP address is 10 10 10 10 Chapter 3 2 2 will deal with changing the IP address If the encoder has built up a connection to the browser you can see its start page To be able to parameterize the encoder please open the page Main Controller Site see image below The other links on the starting page will open a html page showing all available commands Information about Commands or the page to configure the network settings Chapter 4 describes these commands in more detail To continuously please set the desired cycle time and read for example the position values choose the cyclic mode Each command to the encoder and messages from the encoder are logged in the encoder message window FRABA POSITAL Optical Encoder WebControl Mozilla Firefox 18 xl Datei Bearbeiten Ansicht Gehe Lesezeichen Extras Hilfe Q ca z gt z amp x J A L http 198 100 100 55 webserver mainController mainController html zi 6 Go G Erste Schritte Aktuelle Nachrichte _ Posital C3 L FRABA POSITAL Optical Encoder We x FRABA Start Menu Email and Network Configuration MAIN CONTROLLER SITE Encoder Output Parameterisation 100 Position steps Run CountingDir cow C cow Velocity stepsis UsedScopeOfPhysRes 16384 Set 23554432 Timestamp us TotalScaledRes 512 Set 23554432 PresetOffset 100 229657 PosiTioN 100 Raw _set Cycl
14. neeeeeeneeeeee 15 4 6 1 Commands eeeeeeeeeeeeeeeeeeeeeteeeeteeeeeaeeeee 15 4 6 2 Variables cceeceeeeseceeeeeeenereeseeeeeeseneeeeees 16 4 6 3 Encoder AnswerS c cceesseeeseeeeeereeeeeee 18 5 Using UDP transmisSiON csssseeseseeees 18 6 GIOSSANY sesctiscecccceccsccesstavessctectecessecccsdessctecencrnss 19 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 1 Introduction 1 1 Absolute Rotary Encoders Absolute rotary encoders provide a definite value for every possible rotary position All these values are reflected on one or more code discs The beams of infrared LEDs are sent through the code discs and detected by Opto Arrays The output signals are electronically amplified and the resulting value is transferred to the interface The absolute rotary encoder has a maximum reso lution of 65 536 steps per revolution 16 Bit The Multi Turn version can detect up to 16 384 revolu tions 14 Bit Therefore the largest resulting resolu tion is 30 Bit 2 1 073 741 824 steps The standard Single Turn version has 13 Bit the stan dard Multi Turn version 25 Bit The encoder sends the data in decimal code via standard or fast Ethernet 10 Base T 100 Base T At present it supports the following international standardized protocols IP TCP UDP http and SMTP Version 05 09 Page 4 The encoder is able to provide three different kinds of output data the position value a velocity
15. occur the encoder will issue a warning This could for example happen if the variable UsedScopeOfPhysRes is set to a value which does not result in an integer division with the physical resolution of the encoder when dividing the total physical resolution of the encoder The reason for the warning will be sent following the WARNING tag Parameters successfully If any variable was set it is important to wait until the encoder displays this written message before the encoder can be turned off otherwise the internal flash might be damaged 5 Using UDP transmission After starting the batch file UDP_10101010 bat which will start a UDP client on the PC and connect to the encoder run can be entered to read out the position value As UDP is not connection oriented as TCP is only the POLLED mode is sup ported using UDP encoder values cyclically send will not be received by UDP clients The parameterization of the encoder can only be changed by TCP commands see chapter 4 As UDP is not connection orientated The encoder allows UDP connections to port 5000 only c Eingabeaufforderung UDP_10101010 C gt cd fraba ethernet C fraba ethernet gt UDP_16161616 C fraba ethernet gt java udpcl 10 10 10 10 5606 Local UDP socket opened will send to server 16 16 10 16 on port 500A runt POS ITION 26969556 Version 05 09 Page 18 UMUS OCD ETA1 6 Glossary Term 10 Base T 100 Base T ASCII Batch file Baudr
16. ork Configuration Encoder IP Adress 198 100 1 00 55 Set Encoder Netmask 0 0 0 0 Set Gateway IP Adress fi 98 100 100 30 Set E Mail Configuration SMTP Server IP 21 7 69 67 146 Set Mail Sender Jencoder posital de Set Recipient Adress bauten posital de Set Send Test E Mail Send Parameters per E Mail Reset connection 2004 FRABA POSITAL GmbH Cologne Germany http posital comi Applet NetworkConfigPanel started ga Version 05 09 Page 12 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 4 Operating by TCP IP Commands 4 1 Introduction To use the absolute encoder with a control system platform independent commands and data in ASCII format can be exchanged by TCP IP To take a look at the commands and a short description please see chapter 4 6 To find out how to address the TCP IP interface of your control or operating system please refer to the documentation for these devices 2 xi General Network Identification Hardware User Profiles Advanced 21x Environment Variables q r User variables for Staff TEMP C Documents and Settings StafF STAF TMP C Documents and Settings Staff STAF New Edit Delete m System variables J Variable Value Jos Windovs_NT Os2tibPath C WINNT system32 os2 dll I C WINNTIs vINNT PATHEXT COM EXE BAT CMD VB5 PROCESSOR_AR x86 x N
17. puter without network compo nents in between you need to use a standard Connection to Switch or Hub cat 5 crossover cable cat 5 cable PC Switch Hub Version 05 09 Page 7 straight network cable not a crossover cable You need at least a cable of category 5 to get a data transfer rate up to 100 Mbit If there is a net work component in the network which does not provide Fast Ethernet the sensor will automatically switch down to 10 Mbit Direct connection to PC Cat 5 cable UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 2 2 Connecting an Absolute Encoder The encoder is connected by a 5 pin M12 con nector for the power supply and one 4 pin D coded M12 connector for Ethernet Connector Ethernet 4 pin female D coded Pin Number Signal TX Rx Tx Rx Sketch on encoder view a 4X Fi QD Oo 2 3 Ethernet Cables 2 3 1 RJ45 M12 crossed Signal RJ45 Pin M12 Pin Tx 1 2 Tx 2 4 Rx 3 1 Rx 6 3 TX 3 1 Tx 6 3 Rx 1 2 Rx 2 4 Version 05 09 Page 8 Encoder version B1 uses a second D coded connector and provides an integrated hub func tionality On or in the packaging of the connector is the mounting description Connector power supply 5 pin male A coded Pin Number Signal 1 24 V 2 24 V 3 OV 4 OV 5 PE al 5 1 2 eo Ne S a A 2 3 3 M12 M12 crossed Signal M12 Pin M12 Pin Sign
18. sults in an integer division with the total physical resolution the encoder value will jump to zero when passing the physical zero point Default value Physical resolution of the type label l e 4096 resolutions x 8192 steps per revolution 33 554 432 Specifies the scaled resolution which is used over the area of physical steps defined by UsedScopeOfPhysRes If e g the encoder is set as described above and TotalScaledRes is set to 10 the encoder will count 10 steps over the physical steps defined with UsedScopeOfPhysRes i e 5 steps per revolution Default value Physical resolution of the type label l e 4096 resolutions x 8192 steps per revolution 33 554 432 Specifies the direction to turn the axis which is associated with higher values e CW denotes that clockwise turning will increase the position value e CCW denotes that counterclockwise turning will increase the position value When the preset is set an internal offset will be calculated which will be saved and added to all position values afterwards The value given for the preset denotes the position value the encoder will show at the point where the preset was set This variable makes it possible to directly change the offset calculated and set by the preset function Possible time modes are e polled Encoder will only send output values if asked to do by Run e cyclic Encoder will send output values after time specified by CycleTime e change of state Th
19. this value is not set to a value which results in an inte ger division with the total physical resolution the encoder value will jump to zero when passing the physical zero point Specifies the scaled resolution which is used over the area of physi cal steps defined by Used scope of physical resolution If e g the encoder is set as described above and Total scaled resolution is set to 10 the encoder will count 10 steps over the physical steps defined with Used scope of physical resolution i e 5 steps per revolution The code sequence complement can be programmed as an operat ing parameter This parameter determines whether the output code increases or decreases when the axis is turned clockwise The preset value is the desired output value for the actual position of the axis The actual output value will be set to this preset value The html page the programmable parameters and the diagnostics of the encoder are described in the next chapter Max physical position value Max needed position value parameter 2 Version 05 09 Wanted zero Physical zero crossing crossing parameter 1 Page 10 UMUS OCD ETA1 POS TAL FR A BA ETHERNET TCP IP amp UDP USER MANUAL 3 2 Operating by the integrated Web Server The absolute rotary encoder can be addressed by any web browser e g Netscape Internet Explorer Opera etc Please enter the IP address of the encoder in the address
20. transfer rates than common field bus systems TCP IP and UDP do have a statistical access me thod to access the medium thereby prohibiting determined response times Many developments are intensely done on additional real time mechan isms e g Ethernet Powerlink Ethernet IP Profinet or EtherCat However you can already get access times that are sufficient for many applications when using TCP IP or UDP If you directly connect the absolute encoder to a computer via a 100 Mbit network card you will get a cycle time of less than 2 ms In huge networks the cycle times will depend on the utilization of the network Version 05 09 Page 5 1 3 TCP IP Even though Ethernet and TCP IP are often used together and sometimes used interchanged these are three different kinds of terms and you should carefully separate them The coherences are based on the ISO OSI reference model after ISO IEC 7498 that is needed to basically understand these terms Ethernet only describes layer 1 and 2 in this model nevertheless the term is often used in error in engi neering as description of all layers between 1 and T The IP protocol of layer 3 was developed in the 70 s by the US military MIL STD 1777 It allows a uni versal addressing independent of the hardware involved in heterogeneous networks It also man ages the transfer of large packets by splitting them up into smaller packets The well known TCP pro tocol MIL STD 1778 ensures a reliable d
21. va programs For a convenient start we also provided batch files to start the java files depending on the IP addresses you might need to modify them For TCP will be used port 6000 4 3 PATH Variable 4 3 1 MS DOS Win95 Win98 WinME Please add the required paths to c Autoexec bat behind the Path line Example Path c ms dos c Program Files BC BIN Path Path c fraba ethernet Path Path c programme java bin UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 4 3 2 WinNT3 51 WinNT4 Win2000 WinXP In Start Settings Control panel System Advanced Environment Variables you can configure the variable Path Please do not change the other path settings but only add the 4 4 Operating After starting the batch file TCP_10101010 bat the connection to the encoder will be built up Once you are connected you can try e g read offset please note space to read out the calculated offset from the encoder You can see all available commands in the next chapter c Eingabeaufforderung dosi010 C gt ced fraba ethernet C fraba ethernet gt dosi16161616 required paths Depending on the operating system used administrator rights might be necessary If the encoder is running in cyclic mode you can see position values coming continuously from the encoder You can enter a command anyway although your input will be overwritten by new position values the command
22. vated after a new power up when switch 2 is in position off The net mask used by the encoder Please take care that Encoder and PLC PC are within the same subnet or specify a working gateway Gateway to be used by the encoder if own IP address and destination IP address are not within the same subnet specified by the net mask The email address given as the sender in emails from the encoder The email address emails will be send to The IP address of the SMTP server which the encoder will send the email by Level of information output for tracer 0 only errors 1 errors and warn ings 2 errors warnings and clues Page 17 UMUS OCD ETA1 POSITAL FRABA ETHERNET TCP IP amp UDP USER MANUAL 4 6 3 Encoder answers Encoder answers Remarks lt Variable gt lt Value gt If a variable was correctly set the encoder will answer to all connected TCP clients with the variable and its new value This indicates that the Encoder understood the command and now uses the value it does not indicate that the value was already save to the internal Flash please allow some additional seconds for that ERROR If something went wrong the encoder will issue an error e g if it did not un derstand a command or if a value for a variable was not correct It will describe the error after the ERROR tag WARNING If a variable was set to a value which is permitted but which may result in problems when certain conditions
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