GE GEH6505A Network Card User Manual
Contents
1. LEADER Meter Spectra ECM EN Multilin 565 commnet devices Figure 2 Typical use of Ethernet Gateway 1 2 Physical Description Figure 3 is an outline drawing showing the dimensions of the Ethernet Gateway Figure 4 is a rear view of the Gateway showing its control power Ethernet RS485 and RS232 connections The following ports and connections are provided on the Gateway e A pair of Ethernet ports provides input and output connections to the either a 10BaseT or a lOBase2 Ethernet network e Four RS485 ports support up to fourModbus RTU networks labeled Network 1 to Network 4 with as 7 5 in 166 0 mm Status LEDs o Power o HDD o Reset cee fon COOOL DES 0 32 in g 7 32 in 196 0 mm 8 0 mm Figure 3 Front view with dimensions many as 31 Modbus devices each and up to 247 Modbus addresses each RS485 ports are DB 9 9 pin D shell connectors with the following pin assignments One RS232 port also DB 9 style allows connection of a dumb terminal for configuration and troubleshooting of the Ethernet Gateway A standard PC style power connectorfor AC control power input Com 1 RS232 port for dumb terminal Com 2 RS232 port not used keyboard port not used Control power Four 10Base2 and connection RS485 10BaseT ports Ethernet ports Fig2. The Ethernet Gateway works with GE s Power Management Control System PMCS a comprehensive power management software platform that acts as the host to RS485 networks attached to the Ethernet Gateway A special part of the PMCS called the Dynamic Data Exchange DDE server is a database that records the addresses and configurations of all attached devices The Ethernet Gateway serves as a pass through device interpreting the addressing information and routing queries from the host to the Modbus RTU networks and passing answers to those queries from the attached devices back to the host The Ethernet Gateway strictly conforms to the Modbus RTU protocol providing the capability to tie the supported Modbus RIU devices into an Ethernet network Table 1 contains a partial list of devices that are compatible with the Ethernet Gateway and conform to the Modbus RIU standard POWER LEADER Ethernet Gateway Chapter 1 Introduction Device Description EPM 3710 Full function three phase electronic meter with optional pulse initiation vvavefom capture data logging and protective relay outputs EPM 3720 Full function three phase electronic meter with optional pulse initiation waveform capture data logging protective relay outputs and harmonic distortion measurements Multilin 269 Plus Protection for medium voltage Motor Management industrial motors and associated Relay mechanical systems Multil
3. 19200 RS485 Port N 8 1 Message monitori Enabled all ports Ethernet driver DIX Ethernet Run gateway diagnostics Save configuration and exit Discard configuration and exit Default configuration and exit sot U 5 Q MQ RAUR T T U D GP Os Gr Ort Os TO 8 o gracies HH CO CO A Q UI HS N nternal Use Only Gateway socket identifier kkk amp UZ eee a Oe L26 CA ope dede kk kK KKK KKK KK KKK EX kk ok kk ok kK kK k KK he Gateway IP address Gatway subnet mask PC TCP kernel serial number 19 PC TCP kernel authentication key 20 Update gateway software 21 Router 0 0 0 0 0 0 0 0 22 MAC Address 00 00 00 00 00 020 020 Figure 13 Ethernet Gateway configuration menu Enter the setting number you want to change then press lt ENTER gt NOTE The lower portion of the Configuration Menu is labeled Advanced Options These options are for use ONLY by GE technical support personnel Do NOT select any of these options IF YOU ACCIDENTALLY SELECT ANY ADVANCED OPTION FROM THE CONFIGURATION MENU PRESS lt ESC gt TO EXIT THEN PRESS lt ENTER gt TO RETURN TO THE CONFIGURATION MENU 3 At the prompt enter the new setting then press lt ENTER gt If you enter an invalid value th
4. 3742 if the problem is not resolved by these procedures Symptom Possible Cause Corrective Action 1 No response at either Lack of power Check that control power cable is working and host PC or dumb correctly connected es Ethernet Gateway internal Remove and reapply power to the Ethernet Ethernet Gateway fail G f the fail itself ailure ateway to see if the failure clears itse possibly caused by external noise Contact Customer Support if the problem persists WARNING Voltages hazardous to personnel and equipment may be present at the power connection 2 No response at host Faulty Ethernet wiring Check that the Ethernet connector is properly PC from the Ethernet between Ethernet Gateway wired and firmly seated Test wiring for Gateway but terminal and host PC continuity and polarity to host PC connection is OK Ethernet driver may be Check with your system administrator as to incorrect which Ethernet driver is being used DIX or IEEE Make sure Gateway is set accordingly Section 3 5 3 Ethernet connections Faulty RS485 wiring between Check that the RS485 connector is properly OK but no response Ethernet Gateway and wired and firmly seated Test wiring for from RS485 RS485 networks continuity and polarity on RS485 wiring device s Lack of control power at Check that control power present and correctly RS485 device s connected at device s 4 Some devices on Addressing problems or too Refer to
5. Chapter 1 Introduction 1 4 Specifications 7 6 Terminology The specifications of the Ethernet Gateway are listed in Table 2 Following are definitions of some of the terms used in this document POWER LEADER The GE family of comprehensive power management devices and system software used Parameter Value 90 132 Vac or 180 264 Vac 47 63 Hz autoranging Control power Power supply 150 VA min contact your GE sales representative for additional voltage options Modbus communications Four RS485 ports 1200 baud 2400 baud 4800 baud 9600 baud and 19 2 Kbaud One PCL 843 16 bit Ethemet card supports 10BaseT or 10Base2 transport mediums Ethemet communications Standards UL Listed CSA Certified 508 amp 840 C22 2 No 14 Table 2 POWER LEADER Ethernet Gateway specifications 7 5 Environmental Requirements The environmental requirements of the Ethernet Gateway are listed in Table 3 endurance Severity Class 1 Electrostatic discharge IEC 801 2 Severity Class 4 Table 3 POWER LEADER Ethernet Gateway environmental requirements to minimize downtime and overall power cost PMCS Power Management Control System software SCADA supervisory control and data acquisition A group of systems including power management and control systems DCS distributed control system A group of systems including building automation and status monitoring systems Ethernet An
6. terminal to the RS232 port 2 6 Wiring Rules Modbus Networks When wiring Modbus RTU devices to an Ethernet Gateway follow the wiring rules below to ensure proper configuration Refer to GEH 6502 the PMCS Network Architecture Guide for specific examples of correct and incorrect configurations Il Up to 31 Modbus devices may be attached to a single Modbus network RS485 repeaters do not have Modbus addresses but do count as devices toward the 31 physical devices per network limit 2 Every device on a single Modbus network must have a unique address Devices on different networks may use the same Modbus address i e it is acceptable to have a device addressed as device 10 on Network 1 and another device addressed as device 10 on Network 2 Use the Modbus address worksheets at the end of this manual to record the devices attached to each network and verify that each device on each network has a unique address 3 Modbus Concentrators may be used to add POWER LEADER commnet devices to a Modbus network The Concentrator assigns a Modbus equivalent address to each commnet device attached to it See Section 2 7 for a discussion of commnet and Modbus equivalent addresses NOTE While Modbus Concentrators are counted as regular Modbus devices the commnet devices attached to Modbus Concentrators do NOT count toward the 31 device network limit but ARE considered in the 247 address network limit 4 No con
7. to and assumes no responsibility for the accuracy completeness sufficiency or usefulness of the information contained herein No warrantees of merchantability or fitness for purpose shall apply POWER LEADER is a registered trademark of GE Company Modbus RTU is a registered trademark of AEG Schneider Automation For details of the Modbus RTU protocol refer to PI MBUS 300 Rev E from Modicon AEG Schneider Automation For details of RS485 communications refer to the EIA 485 standard Copyright 1996 GE Company All Rights Reserved POWER LEADER Ethernet Gateway Table of Contents ne le ONON e A R A A A AA A A EA A AAAS l E ED o a Me enn eT 4 lo pere DES UO ieran ARRANA NARRAN 3 IM CSS FO r E E T E S 3 ORNE ER A OS T O E E E E E E E A EEE S 3 dE pe NCA ONS e ene en rT 4 0 EI CO CSC GE CR AAR dl 4 1 0 Lerminology essenin cet cis se sae ve ase ses ae aces aes ese oe EEE SEE estaments testa sr 4 aa aa 5 ZN MORA SEE EEE 5 2 2 Control Power Connections ss 5 Dao UCI MEL CON MC ClO ia AAN EEEE OEEO NOES 5 2A Modbus Connectors or nn aro ornar ore nEn rE En I E a nE rE ENE E aE n EE ra ara ara ai 6 2 0 TACOS UEC COIS CO O RE mantenen 6 2 6 Wiring Rules for Modbus NEUW OL KS caceronoamcamsst smtsstemesemestassmemesemtasmemsmes te 6 2 7 Modbus Equivalent Addresses sicceiccscedscadcostescderudacednendnasiacsduceducadecetunsdacedncudsadoesdeqedesseardonedaces 7 aa 8 GE cats cabell ci TOC UN cass sacar oe eats sce 8 One
8. 8 The Gateway is equipped with a PCL 843 16 bit Ethernet card il 4 Figure 8 Making the Ethernet connection to the Gateway POWER LEADER Ethernet Gateway Chapter 2 Installation 2 4 Modbus Connection The Modbus RTU networks should be connected to the RS485 ports on the back of the Ethernet Gateway as shown in Figure 9 Figure 9 Connecting an RS485 network to the Ethernet Gateway Per the EJA 485 standard the RS485 networks must be terminated at both ends Position the Ethernet Gateway at one end of the RS485 networks as it is internally terminated The user must ensure that the final device on each network is terminated correctly as shown in Figure 10 ab LE Bees coy 9 a our Res Mocs ATU Figure 10 Terminating an RS485 network at the last device 2 5 Diagnostic Connection The RS232 port on the back of the Ethernet Gateway is provided for connection of a dumb terminal to the Gateway The terminal may be used for configuring the Ethernet Gateway s settings or for diagnostic purposes For diagnostic purposes the Gateway may be set to display all messages and traffic on the terminal so that problems may be tracked down and corrected To connect a terminal usually a laptop computer running Windows Terminal accessory software to the Gateway plug its RS232 cable into the RS232 port on the back of the Ethernet Gateway as shown in Figure 11 Figure 11 Connecting a dumb
9. Ethernet Gateway PACS oo 9 Dm DC RAC D C CA OR N S 9 3 4 Message Monitoring ost dd ee 10 ar OMIC NIT Bass ste E as ese ee ese eave esata E eaten 10 3 6 Gateway Diagnostics imants 11 Display Socket IP Address and Subnet Mask ss 1 SO OR E E 1 Ethernet Uy chs epee eee me ne ee ee ee ee ee 11 FC D EnO S E OO rd a EAA IAOEE ts 11 Network Test RAC LORS ONE 12 3 7 Advanced Options Technical Support Personnel ONLY 12 Updating the Gateway Software sisi 12 Chapter 4 Operation cccccccccccucceccnnccnnsceennennnsnennnnennnncesenenennnaeseesansnensunsnensnassenssenses 13 Chapter 5 Diagnostic Messages and Errors 14 D MO ON MO ei nee Dee ee de Le ent de de ce ei este 14 E Dol estretes rr ME RES 14 Chapter 6 Troubleshooting Guide 15 RS485 Port Configuration Worksheets 16 POWER LEADER Ethernet Gateway Table of Contents List of Figures rieure POWER LEADER PtMeriiet Gateway oon nt a er de end le I Fioure 2 Typical use ol EL Mere Gateway a aaa E EEE E EEE E 2 Figure 3 Front view of Ethernet Gateway showing dimensions ss 2 Figure 4 Rear view of the Ethernet Gateway showing Ethernet RS485 and RS232 pOrts 2 FiSure 2 Eth rmet Headers On Modbus IM CSSa OCS nn T E n one lte nent te
10. GEH 6505A POWER LEADER Ethernet Gateway User s Guide WARNINGS CAUTIONS NOTES REFERENCES GEH 6505 WARNINGS CAUTIONS AND NOTES AS USED IN THIS PUBLICATION Warning notices are used in this publication to emphasize that hazardous voltages cur rents or other conditions that could cause personal injury exist in this equipment or may be associated with its use Warning notices are also used for situations in which inattention or lack of equipment knowledge could cause either personal injury or damage to equipment Caution notices are used for situations in which equipment might be damaged if care is not taken Notes call attention to information that is especially significant to understanding and operating the equipment This document is based on information available at the time of its publication While efforts have been made to ensure accuracy the information contained herein does not cover all details or variations in hardware and software nor does it provide for every possible contingency in connection with installation operation and maintenance Features may be described herein that are not present in all hardware and software systems GE Electrical Distribution amp Control assumes no obligation of notice to holders of this document with respect to changes subsequently made GE Electrical Distribution amp Control makes no representation or warranty expressed implied or statutory with respect
11. Section 5 1 to diagnose the precise RS485 networks not many devices on segment problem and correct accordingly recognized at host 15 POWER LEADER Ethernet Gateway Contiguration Worksheets RS485 Port Configuration Worksheets Use the following worksheets to record the devices attached to the Ethernet Gateway for reference and troubleshooting Record the Ethernet Gateway s Ethernet address on the first page only then fill in the information on the Modbus devices attached to each network device type and physical location and the Modbus address assigned to it Ethernet Gateway Address RS485 Port 1 Worksheet Baud Rate for RS485 Port 1 YY Modbus Network NO Device Modbus Number Device Type amp Physical Location Notes Address 16 POWER LEADER Ethernet Gateway Contiguration Worksheets RS485 Port 2 Worksheet Baud Rate for RS485 Port 2 YP f Modbus Device Modbus Network Number Device Type amp Physical Location Notes Address Or 17 POWER LEADER Ethernet Gateway Contiguration Worksheets RS485 Port 3 Worksheet Baud Rate forRSi85Port3 _ O Modbus Device Modbus Network Number Device Type amp Physical Location Notes Address OUI A 09 pd XI 18 POWER LEADER Ethernet Gateway Contiguration Worksheets RS485 Port 4 Worksheet Baud Rate for RS485 Port 4 PY Modbus Device Modbus Network Number Device Type amp Physical Loca
12. The following prompt appears Before running this test make sure the loop back cable is connected between two R548653 porte RSAC p rt to test 1 port L Zy A OBC SES DE DO EE Quer DOLE D 11 POWER LEADER Ethernet Gateway Chapter 3 Configuration Enter the port to be tested 1 2 3 or 4 The following message displays Transmitting 256 bytes on port X where X is the port being tested If the loop back is successful the following message will be displayed Loop back test passed Message received on port Y 256 bytes Press lt ENTER gt where Y is the loop back port If the loop back is unsuccessful the following message displays Loop back test failed Press lt ENTER gt Default settings on the RS485 ports for the loop back tests are 115 2 Kbps 8 N 1 Ethernet Test Select menu item 3 to test the Gateway s internal Ethernet connections This performs a self test of the Gateway s Ethernet card to ensure that it is functioning correctly The following message displays Performing ethernet test If the test passes the following message displays Ethernet test passed Press lt ENTER gt If the test fails the following message displays Ethernet test failed Press lt ENTER gt In either case pressing lt ENTER gt returns you to the diagnostics menu Exit Diagnostics Program Select menu item 4 to exit the Gateway diagnostic software and reload the Gateway softw
13. are POWER LEADER Ethernet Gateway Chapter 3 Configuration Network Test FACTORY USE ONLY NOTE A client program may be requested from GE to run on the host when performing the network test The client attempts to establish a connection to a server the Gateway with the specified IP address subnet mask and port number Menu item 5 is for factory testing of the network End users should NOT select this option This test attempts to communicate with a host across the Ethernet To complete this test you will need an RS232 null modem cable available at an electronics retailer Before performing this test the host PC must be running the client software mentioned above and must be connected to the Ethernet Gateway via the null modem cable When you select menu item 4 the following message is displayed Before proceeding with this test make sure that the ethernet gateway is connected to the Host and the client program is running on the host Press CENTERS to continue If the network test passes the following message is displayed Connection with client established Network test passed Press lt ENTER gt If the network test fails the following message is displayed Timeout connection with client failed Network test failed Press lt ENTER gt In either case pressing lt ENTER gt returns you to the diagnostics menu 12 3 7 Advanced Options Technical Support Personnel ONLY Or
14. ddresses The valid range of commnet addresses recognized by the concentrator is 300 514 These addresses are one to one mapped to the equivalent Modbus address range of 33 247 For a more detailed discussion of commnet devices and the function of the Modbus Concentrator see GEH 6491 the Modbus Concentrator Users Guide Table 4 lists commnet devices supported by the Modbus Concentrator and the Ethernet Gateway POWER LEADER EPM Full function three phase electronic meter with optional pulse initiation simple retrofit to existing electromechanical installations See GEH 6302 for a full description Full function three phase meter with optional protective relaying and waveform capture See GEH 5892 POWER LEADER Meter POWER LEADER MDP Overcurrent Relay Three phase and ground protection against overloads and rapid detection of short circuits See GER 100682 Advanced motor protection in full voltage nonreversing FVNR and full voltage reversing FVR combination starter applications See GEH 6435 Overcurent protection and optional full function metering and protective relaying See GEH 5934 Spectra ECM MicroVersa Trip PM trp unit In Spectra RMS molded case circuit breakers MicroVersa Trip PM trip unit in AKR Power Break and Power Break ll insulated case circuit breakers Overcurrent protection and optional full function metering and protective relayin
15. dinarily these options will have been configured by the system integrator or direct from the factory you should NOT alter any of the settings from the advanced options area of the Configuration menu WARNING ALTERING ANY OF THESE SETTINGS MAY RENDER THE ETHERNET GATEWAY INOPERABLE IF YOU ACCIDENTALLY SELECT ANY OPTION FROM THE ADVANCED SETTINGS PRESS lt ESC gt TO EXIT THEN PRESS lt ENTER gt TO RETURN TO THE CONFIGURATION MENU Select menu item 15 to modify the Gateway socket identifier The format is FFF Select menu item 16 to modify the Gateway Internet Protocol IP address Enter the IP address in dot notation e g 123 145 51 126 Select menu item 17 to modify the Gateway subnet mask Enter the subnetwork mask in dot notation e g 255 255 255 0 Select menu item 18 to modify the FTP PC TCP kernal serial number The number has the following format 1234 5678 901 2 Select menu item 19 to modify the FTP PC TCP kernal authentication key The number has the fol lowing format 1234 5678 901 2 Select menu item 21 to modify the Gateway Router This item has the following format 0 0 0 0 0 0 0 0 0 0 0 0 Note that the Router numbers may have multiple digits in each placeholder and each set of four numbers represents one router for example 205 109 43 11 0 0 0 0 0 0 0 0 is configured for one router The Gateway may be configured with a maximum of three routers Updating the Gateway Software Option 20 of th
16. e Configuration menu allows updat ing of the Ethernet Gateway s operating software and is for use ONLY by factory service personnel Chapter 4 Operation The Ethernet Gateway once properly configured requires no user intervention for operation During normal operation the Ethernet Gateway passes messages to and from the attached Modbus devices and translates these messages between the Ethernet and Modbus RTU protocols Should power to the Ethernet Gateway be inter rupted communications between the host and the RS485 networks will resume automatically and immediately when power is restored Likewise if the Ethernet connection or any of the RS485 connections are broken communications will be immediately resumed when the connections are restored Any errors encountered by the Ethernet Gateway will result in a message being sent back to the host where it will be interpreted and displayed for correc tive action by the operator All processing error messages are sent to the RS232 port Processing error messages are listed in Section 5 1 of this manual 13 POWER LEADER Ethernet Gateway Chapter 4 Operation POWER LEADER Ethernet Gateway Chapter 5 Errors and Diagnostic Messages Chapter 5 Diagnostic Messages and Errors 5 1 Monitor Mode 5 2 Processing Error Messages The Ethernet Gateway can be set to send diagnostic Table 7 gives error messages that may be generated messages to the RS232 por
17. e Gateway if a configuration message Messages from the RS485 devices to the host are processed by adding the 15 byte header onto the start of the message For messages from devices to the host the byte in the DD position contains the RS485 port from which the message came Cyclic redundancy check CRC handling is done by the host on the Ethernet and the RS485 device on the Modbus The Gateway does not check the CRC when receiving messages from the host or from RS485 devices Modbus messages from host to device Ethernet Gateway strips off header Ethernet x Modbus information message header Message traveling on Ethernet D i Ethernet header ee lt y Ethernet p Modbus fi RS485 Gateway message device Message traveling on RS485 Re TN rr Modbus Ethernet i Modbus RS485 information message Gateway Message device Modbus messages from device to host Ethernet Gateway adds header Figure 5 Ethernet headers on Modbus messages Gateway Host Interface The Gateway uses TCP IP Transmission Control Protocol Internet Protocol to interface with the host on the Ethernet The Gateway initially opens a socket and waits for a host device to attempt to connect with the socket Once a connection is established data messages may be transmitted to the Gateway and ultimately the RS485 devices and messages from RS485 devices passed to the host POWER LEADER Ethernet Gateway
18. e Terminal accessory program from Windows Use a null modem cable to attach the laptop to the RS232 port of the Gateway power up the laptop and launch the Terminal program located in the Accessories program group in the Windows program manager Click on the Settings menu then choose Communications Set your communications options to look like figure 12 When you have set your communications options close the options window and power up the Gateway the ON switch is located on the front panel When the Gateway finishes powering up the following message is transmitted to the terminal Powerup complete Communications Baud Rate Odo 300 0600 1700 once Gateway active Data Els Stop Bite OO o Os Os O7 P8 81 Ors O2 Flow Control Connector Lon oli 5 Hardware 3 None Parity None Odd gt Even CS Mark OO Space COM1 g COM Li Parity Check Li Camer Detect Figure 12 Terminal communications settings You are now ready to configure the Gateway as outlined below 1 Type SET must be typed in capital letters then press lt ENTER gt to bring up the configuration menu If you make an error typing in this string wait ten seconds and try again 2 The menu terminal displays the configuration Change which setting RS485 Port J RS485 E RS485 Por RS485 I RS485 E RS485 E RS485 I 5 gt t K b U te 1 i Nepal Por te
19. e following message will be displayed Invalid entry Pressing lt ENTER gt configuration menu press lt ENTER gt to continue returns you to the NOTE Pressing lt ESC gt while entering a new value for a the redisplays the configuration menu setting discards changes and 4 Configure parameters as desired by repeating steps 2 and 3 5 When you are finished making changes select option 12 SAVE CONFIGURATION AND EXIT The configuration file on drive A is modified with the new parameters and the terminal displays the following message Configuration saved If an error has been made select option 13 DISCARD CONFIGURATION AND EXIT The currently displayed settings are discarded and the following message is displayed on the terminal Configuration discarded Correct the error by repeating steps 1 3 6 When you have saved the configuration and exited the Ethernet Gateway is ready for operation Turn off the unit until the rest of the network is ready for operation POWER LEADER Ethernet Gateway Chapter 3 Configuration 3 2 Ethernet Gateway IP Address Ethernet Gateway s IP address must be properly set for it to receive messages sent by the host software Consult your LAN personnel or system administrator for assistance in selecting the correct IP address Follow Section 3 to modify the IP address WARNING Setting the Ethernet Gateway to an incorrect or conflicting IP address can cau
20. en items titan 3 Ficure 0 Mountine hole patter tor Ethernet Gateway nn nn A 5 Figure 7 Connecting control power to the Ethernet Gateway 5 Figure 8 Making the Ethernet connection to the Gateway sis 5 Figure 9 Connecting an RS485 network to the Ethernet Gateway ss 6 Figure 10 Termination of the RS485 network at the last Modbus device 6 Figure 11 Connecting a dumb terminal to the RS232 port ss 6 Moure 12 gt Tenia Comm UIC GO ns Se LIC Se 5 35555055assnahanesguenasesanananspasanansoanas en 8 Figure 45 Pthermer Gateway conho urato ME eeg E de tacs 6t 8 Ei UC I Gateway CaS MOStiCs CM Ut st cash austen shan ates ne dd 11 List of Tables I Examples of Modbus RTU compatible devices sisi l 2 POWER LEADER Ethernet Gateway SD GICATHONSE Un a ne 4 3 POWER LEADER Ethernet Gateway environmental requirements 4 4 POWER LEADER commnet devices supported by the Modbus Concentrator ec eeeeesseeeeeeeeeeees 7 Ds ROSI FOL OCUN O Siaosi n AAAA E EA E 10 CAD nOs ates cie Oy SE ee OONO 14 LEONESSA E KE erinra D AEEA AAE 14 Chapter 1 Introduction 1 1 Overview The GE POWER LEADER Ethernet Gateway catalog number PLENETGO1 shown in Figure 1 is a microprocessor based device that connects one to four RS485 based Modbus Remote Terminal Unit RTU networks to an industry standard high speed Ethernet network Up to 31 Modbus RTU devices can be connected to each of the Modbus RTU networks Figure 1 POWER LEADER Ethernet Gateway
21. g See GEH 6273 Table 4 POWER LEADER commnet devices supported by the Modbus Concentrator POWER LEADER Ethernet Gateway Chapter 3 Configuration Chapter 3 Configuration The Ethernet Gateway needs to be properly configured to communicate with your RS485 networks Iwo items are critical to proper performance of your Gateway the Gateway s Ethernet address and the RS485 _ port communication settings The Gateway s Ethernet address should be set so that the host software will know how to address messages to the Gateway You must configure the Ethernet Gateway with the appropriate baud rate and communications settings for each RS485 port to match attached RS485 network After initial setup you should only need to make changes to the Gatevay s settings after adding devices or making system changes Follow the instructions in Section 3 1 to perform the initial configuration After the network is operational you may make configuration changes through the dumb terminal These procedures are described in the following sections In all cases be sure to save any configuration changes to the Gateway s hard drive option 12 for safe retrieval in the event of a power loss 3 1 Configuration Procedure Configuration of the Gateway requires a dumb terminal with RS232 port set to 19 2 Kbps 8 data bits no parity and 1 stop bit The easiest way to do this is to use a portable computer with an RS232 port and run th
22. in 565 Feeder Management Relay Complete time overcurent phase and ground protection by monitoring feeder phase current and ground current Fanuc 90 30 PLC Programmable logic controller PLC for applications from simple relay replacement to midrange process control Fanuc 90 70 PLC Programmable logic controller with multiple processors and programming capabilities for large high speed applications Modbus Maps addresses of up to 32 attached Concentrator POWER LEADER communications network commnet devices to equivalent Modbus addresses for use with the Ethemet Gateway Table 1 Examples of Modbus RTU compatible devices NOTE PMCS is certified for use with power management components manufactured 5 13 96 or later If your system interfaces to 1 any trip units meters or relays manufactured prior to 5 13 96 or 2 any Spectra RMS Circuit Breakers with MicroVersa Trip PM Trip Units please contact the POWER LEADER Customer Support Center at 1 800 843 3742 As mentioned in Table 1 the Modbus Concentrator allows integration of POWER LEADER commnet devices with Modbus RTU compatible networks for use with the Ethernet Gateway See Section 8 5 for more details on the integration of commnet devices into Modbus networks Figure 2 illustrates a typical Modbus RTU network connected to a high speed Ethernet through an Ethernet Gateway POWER LEADER Ethernet Gateway Chapter 1 Introduction Ethernet
23. n the ends to allow for ventilation and cable access To wall mount the Ethernet Gateway attach the brackets to the chassis using six of the provided screws through the six holes on the inner edges of the mounting brackets Then use the remaining four screws to secure the chassis to the wall through the holes in the outer edges of the brackets Be sure that the chassis is mounted securely The hole pattern for the mounting flanges of the Ethernet Gateway is shown in Figure 6 12 in tin e 305 0 mm I 23 0 mm a oaoa CG o ED O O O E TO S i O O O lt gt o CO Coa EE o Figure 6 Mounting hole pattern for Ethernet Gateway 4 R2 5 2 2 Control Power Connections Connect the control power cable included with the Ethernet Gateway to the standard PC style power outlet on the rear of the enclosure as shown in Figure 7 See Section 1 4 for appropriate control power voltage ranges The ON switch for the Ethernet Gateway is located on the front panel Make sure the Gateway is mounted in a location where the power switch is not likely to be accidentally hit or switched off POWER LEADER Ethernet Gateway Chapter 2 Installation Figure 7 Connecting control power to the Ethernet Gateway 2 3 Ethernet Connection 10BaseT and 10Base2 connections are provided on the back of the Ethernet Gateway to connect the Gateway to the Ethernet network as shown in Figure
24. nections between Modbus networks are permitted either directly or through repeaters 5 Modbus networks are constrained to a maximum 4 000 feet of communication cable without repeaters 6 RS485 repeaters may be used to extend the wiring length of a Modbus network or to provide isolation between runs of cable in a Modbus network Refer to GEH 6502 for appropriate wiring lengths with repeaters 2 7 Modbus Equivalent Addresses A maximum of 31 Modbus devices can be supported on a single RS485 network of the Ethernet Gateway However the Modbus RIU protocol permits up to 247 individual addresses to be recognized These additional 216 addresses may be utilized by commnet devices attached to a special Modbus device the Modbus Concentrator Commnet is a communications protocol utilized by many of the devices from GE s POWER LEADER family of power management devices The Modbus Concentrator is a Modbus RTU device that permits commnet devices to be assigned Modbus equivalent addresses Each Modbus Concentrator keeps track of up to 32 commnet devices and directs traffic between the Modbus network and the commnet POWER LEADER Ethernet Gateway Chapter 2 Installation devices To the Modbus network the commnet devices appear as valid Modbus addresses To provide seamless integration of commnet compatible devices into the Modbus RTU network the Concentrator directly maps commnet addresses to equivalent Modbus a
25. ollow the procedure outlined in Section 3 1 to configure the Gateway 2 At the Configuration menu select the option number then press lt ENTER gt At the prompt enter the new setting then press lt ENTER gt For options 1 3 5 and 7 enter the new setting from the options in Table 5 then press lt ENTER gt For options 2 4 6 and 8 enter each new parameter as prompted using the correct entries from Table 5 If you enter an invalid value the following message display Invalid entry press lt ENTER gt to Continue Press lt ENTER gt to return to the Configuration menu NOTE Pressing lt ESC gt while entering a new value for a setting discards the the Configuration menu changes and redisplays 3 Follow steps 5 and 6 of Section 3 1 to save any changes and exit configuration mode 10 3 4 Message Monitoring For diagnostic purposes you may want to monitor message traffic across the RS485 ports This can be done on a terminal connected to the RS232 port You may monitor messages on any single RS485 port or on all four ports simultaneously Selecting menu item 14 allows you to select whether or not messages are sent to the RS232 port in monitor mode and which RS485 ports are to be monitored The following prompt appears Message monitoring 0O disable V RSASS ADOrE 2 only Z RS485 port 2 only SS R5405 DOLL 2 Only 4 RS485 port 4 only 5 all R5485 ports Enter your selection fr
26. om the above choices 3 5 Ethernet Driver Menu item 10 permits the Ethernet driver to be selected Most systems utilize DIX Ethernet a handful use IEEE Ethernet The Gateway defaults to the DIX Ethernet driver If your network does not function under DIX Ethernet and you have eliminated all other potential sources of trouble change the driver setting to IEEE Ethernet and retry communications If this does not resolve the problem contact Customer Service 3 6 Gateway Diagnostics Selecting menu item 11 exits the Gateway software and runs the Gateway diagnostics program The Gateway Diagnostics menu shown in Figure 14 is displayed on the terminal Diagnostics lay IP address and subnet mask form RS485 loopback test form ethernet test Exit program nternal Use Only form network test Figure 14 Gateway Diagnostics menu Display Socket IP Address and Subnet Mask Select menu item to display the IP address and subnet mask for the Gateway RS485 Loop back Test Select menu item 2 to perform a loop back test on an RS485 port The loop back test is useful for identifying the RS485 ports and for testing communications on an RS485 port To complete this test you will need a short RS485 cable available at an electronics retailer The RS485 port being tested is connected to another RS485 port and a test message is transmitted from the port being tested
27. open industry standard highperform ance network communications protocol that opeates on lOBasel or lOBase2 transport mediums and yields communications rates up to 10 megabits per second Modbus RTU Remote Terminal Unit An open industry standard highperformance network communica tions protocol developed by Modicor AEG Schneider Automation Modbus compatible device Any device equipped with a Modbus RTU communications port Modbus master A host computer running PMCS software RS485 EIA485 A physical standard for multi drop high speed noisetolerant communications over a twisted pair network often used with the Modbus RTU protocol Commnet A GE proprietary communications network standard Commnet compatible device Any meter relay trip unit or other device equipped with a commnet commu nications port Commnet segment A group of one to four commnet compatible devices including at most one wav orm capturing meter with all communication ports wired to a single Concentrator commnet port Chapter 2 Installation 2 1 Mounting The Ethernet Gateway may be mounted on a horizontal surface or on a wall preferably inside an enclosure or switchgear lineup The Gateway should be mounted so that it is spaced from enclosure walls or from other components in the enclosure A minimum of two inches clearance should be allowed along the long sides of the Gateway and at least six inches clearance o
28. se SERIOUS network problems ALWAYS consult your LAN personnel or system administrator before making any changes to the IP address 3 3 Baud Rate Specification You must configure the baud rate and communications settings on each RS485 port to match the baud rate on the attached RS485 network The Gateway supports RS485 speeds of 1200 baud 2400 baud 4800 baud 9600 baud and 19 2 Kbaud Default settings are 19 2 Kbaud 8 data bits no parity 1 stop bit Each network s baud rate depends on the devices attached to it see GEH 6502 the PMCS Network Architecture Guide for more details on this To configure the baud rate and communications settings for any of the four RS485 ports follow Section 3 1 referencing the special instructions given below regarding the communications options Table 5 lists the valid entries for options through 8 of the Configuration menu relating to the baud rate and communications settings of RS485 ports POWER LEADER Ethernet Gateway Chapter 3 Configuration Option Number Valid Entries at Prompt 1 RS485 Port 1 O 1200 baud 4 19200 baud 3 RS485 Port2 1 2400 baud 5 38400 baud 5 RS485 Portt3 2 4800 baud 6 57600 baud 7 RS485 Port 4 3 9600 baud 2 RS485 Port 1 Data Bits 4 RS485 Port 2 6 RS485 Port 3 8 RS485 Port 4 7 data bits 8 data bits 1 stop bit 2 stop bits Stop Bits None Even Odd Parity Table 5 RS485 Port Settings 1 F
29. t to be displayed on a by the Gateway and displayed at the PMCS host terminal see Chapter 3 These diagnostic EES DES y a eren as in configuration or device addressing Error Buffer Overflow One or more buffers have Diagnostic messages sent to the RS232 port in moni overflowed tor mode have the following format Error Writing to Flash An attempt to write to flash ROM ROM drive A has failed TTTTTTTTT DDD HH BB BB BB lt CR gt lt LF gt Error Reading Flash An attempt to read the flash ROM Table 6 explains what each field means ROM drive A has failed Table 7 Error message key PELTI TTI The relative time of the message in timer ticks This rolls over every 1 000 000 000 timer ticks Indicates the direction of the message E n n 1 2 3 or 4 indicates a message sent from the Ethemet Gateway to RS485 port number 1 2 3 or 4 n E indicates a message sent from RS485 port number 1 2 3 or 4 to the Ethernet Gateway AH Header byte added to regular Modbus message Printed as two hex digits BB BB BB Binary data of regular Modbus message Printed as two hex digits Table 6 Diagnostic messages key 14 POWER LEADER Ethernet Gateway Chapter 6 Troubleshooting Guide Chapter 6 Troubleshooting Guide The following guide is provided for troubleshooting and isolating common problems It does not cover every possible condition Contact the ED amp C Customer Support Center at 800 843
30. tion Notes Address 19 amp GE Electrical Distribution amp Control General Electric Company 41 Woodford Ave Plainville CT 06062 GEH 6505A 0996 7996 General Electric Company
31. ure 4 Rear view Showing ports 1 3 Operational Description The Ethernet Gateway transparently passes message between the host and devices attached to the Gateway Figure 5 illustrates the stripping or adding of Ethernet headers to the Modbus messages This section describes the nature of these messages and how the Gateway routes them The following information is not necessary for configuration and use of the Ethernet Gateway but is provided for users who may be developing custom applications and need such information Message Format Messages sent from the software to RS485 devices via the Ethernet Gateway have a 15 byte header inserted in front of the message The header tells the Gateway where to send the message how long the message is and if parity errors were encountered This header has the following format SS DD EE NN CC Sequence of ten AA hex bytes indicating the start SS ofa message POWER LEADER Ethernet Gateway Chapter 1 Introduction DD Destination device port number the Gateway RS485 port to which the message should be routed 0 3 EE Error status byte 0 no parity errors parity errors encountered NN Number of bytes in the Modbus message CC A one byte checksum calculated by adding the first 14 bytes in the header The header is stripped off the message by the Gateway and the remainder of the message is sent without changes to the destination device or interpreted by th
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