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POWER LEADER™

Ethernet Gateway

GEH–6505A

User’s Guide

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Summary of Contents for POWER LEADER GEH-6505A

Page 1: ...g POWER LEADER Ethernet Gateway GEH 6505A User s Guide ...

Page 2: ...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 Control assumes no obligation of notice to holders of this document with respect to changes subsequently made GE Electrical Di...

Page 3: ...Modbus Equivalent Addresses 7 Chapter 3 Configuration 8 3 1 Configuration Procedure 8 3 2 Ethernet Gateway IP Address 9 3 3 Baud Rate Specification 9 3 4 Message Monitoring 10 3 5 Ethernet Driver 10 3 6 Gateway Diagnostics 11 Display Socket IP Address and Subnet Mask 11 RS485 Loop back Test 11 Ethernet Test 11 Exit Diagnostics Program 11 Network Test FACTORY USE ONLY 12 3 7 Advanced Options Techni...

Page 4: ... Ethernet connection to the Gateway 5 Figure 9 Connecting an RS485 network to the Ethernet Gateway 6 Figure 10 Termination of the RS485 network at the last Modbus device 6 Figure 11 Connecting a dumb terminal to the RS232 port 6 Figure 12 Terminal communications settings 8 Figure 13 Ethernet Gateway configuration menu 8 Figure 14 Gateway diagnostics menu 11 List of Tables 1 Examples of Modbus RTU ...

Page 5: ...nd 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 Motor Management Relay Protection for medium voltage industrial motors and associated mechanical systems Multilin 565 Feeder Management Relay Complete time overcurrent phase and g...

Page 6: ... either a 10BaseT or a 10Base2 Ethernet network Four RS485 ports support up to fourModbus RTU networks labeled Network 1 to Network 4 with as 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 Data Pin 1 Data Pin 2 Ground Pin 5 One RS232 port also DB 9 style allows connection of a dumb terminal for con...

Page 7: ...he message by the Gateway and the remainder of the message is sent without changes to the destination device or interpreted by the 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...

Page 8: ...e GE family of comprehensive power management devices and system software used 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 con trol systems DCS distributed control system A group of systems including building automation and status monitoring systems Etherne...

Page 9: ... the chassis is mounted securely The hole pattern for the mounting flanges of the Ethernet Gateway is shown in Figure 6 8 R5 4 R2 5 12 in 1 in 7 1 8 190 6 mm 305 0 mm 23 0 mm Figure 6 Mounting hole pattern for Ethernet Gateway 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 ...

Page 10: ...nd 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 terminal to the RS232 port 2 6 Wiring Rules Modbus Networks When wiring Modbus RTU devic...

Page 11: ...resses Each Modbus Concentrator keeps track of up to 32 commnet devices and directs traffic between the Modbus network and the commnet 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 addresses The valid ra...

Page 12: ... 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 the Terminal accessory program from Windows Use a null modem cable to attach the laptop to the RS232 port of the Gatewa...

Page 13: ...the Ethernet Gateway is ready for operation Turn off the unit until the rest of the network is ready for operation 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 7 to modify the IP address WAR...

Page 14: ... menu NOTE Pressing ESC while entering a new value for a setting discards the changes and redisplays the Configuration menu 3 Follow steps 5 and 6 of Section 3 1 to save any changes and exit configuration mode 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 messa...

Page 15: ...S485 port and a test message is transmitted from the port being tested The following prompt appears Enter the port to be tested 1 2 3 or 4 The following message displays where X is the port being tested If the loop back is successful the following message will be displayed where Y is the loop back port If the loop back is unsuccessful the following message displays Default settings on the RS485 po...

Page 16: ...ings from the advanced options area of the Configuration menu WARNING ALTERING ANY OF THESE SETTINGS MAY RENDER THE ETHERNET GATEWAY INOPERABLE IF YOU AC CIDENTALLY SELECT ANY OPTION FROM THE ADVANCED SETTINGS PRESS ESC TO EXIT THEN PRESS ENTER TO RETURN TO THE CONFIGURATION MENU Select menu item 15 to modify the Gateway socket identifier The format is Select menu item 16 to modify the Gateway Int...

Page 17: ...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 ...

Page 18: ...timer ticks Indicates the direction of the message E n n 1 2 3 or 4 indicates a message sent from the Ethernet 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 Header byte added to regular Modbus message Printed as two hex digits Binary data of regular Modbus message Printed as two hex digits Table 6 Diagnostic messages ...

Page 19: ...t the power connection 2 No response at host PC from the Ethernet Gateway but terminal connection is OK Faulty Ethernet wiring between Ethernet Gateway and host PC Ethernet driver may be incorrect Check that the Ethernet connector is properly wired and firmly seated Test wiring for continuity and polarity to host PC Check with your system administrator as to which Ethernet driver is being used DIX...

Page 20: ...e 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 Modbus Network Device Number Device Type Physical Location Notes Modbus Address 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 1...

Page 21: ...rt 2 Worksheet Baud Rate for RS485 Port 2 Modbus Network Device Number Device Type Physical Location Notes Modbus Address 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 20 2 21 2 22 2 23 2 24 2 25 2 26 2 27 2 28 2 29 2 30 2 31 ...

Page 22: ...rt 3 Worksheet Baud Rate for RS485 Port 3 Modbus Network Device Number Device Type Physical Location Notes Modbus Address 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 3 22 3 23 3 24 3 25 3 26 3 27 3 28 3 29 3 30 3 31 ...

Page 23: ...rt 4 Worksheet Baud Rate for RS485 Port 4 Modbus Network Device Number Device Type Physical Location Notes Modbus Address 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 4 17 4 18 4 19 4 20 4 21 4 22 4 23 4 24 4 25 4 26 4 27 4 28 4 29 4 30 4 31 ...

Page 24: ...g GE Electrical Distribution Control General Electric Company 41 Woodford Ave Plainville CT 06062 GEH 6505A 0996 1996 General Electric Company ...

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