5-28
G60 Generator Protection System
GE Multilin
5.2 PRODUCT SETUP
5 SETTINGS
5
The RS485 port can be connected to a computer running EnerVista UR Setup. This software can download and upload set-
ting files, view measured parameters, and upgrade the relay firmware. A maximum of 32 relays can be daisy-chained and
connected to a DCS, PLC, or PC using the RS485 port.
The baud rate for standard RS485 communications can be selected as 300, 1200, 2400, 4800, 9600, 14400, 19200,
28800, 33600, 38400, 57600, or 115200 bps. If COM2 is used for both a field ground module (GPM-F) and remote RTD
unit (RRTD), then the
RS482 COM2 BAUD RATE
is fixed at 19200 bps.
For the RS485 port, the minimum time before the port transmits after receiving data from a host can be set. This
feature allows operation with hosts that hold the RS485 transmitter active for some time after each transmission.
If the
COM2 USAGE
setting is “RRTD only”, then the COM2 port is used to monitor the RTDs on a remote RTD unit. The
remote RTD unit uses the Modbus RTU protocol over RS485. The RRTD device must have a unique address from 1 to
254. The baud rate for RRTD communications can be selected as 300, 1200, 2400, 4800, 9600, 14400, or 19200 bps.
If the RS485 COM2 port is used for an RRTD, GPM-F, or RRTD and GPM-F, then there must not be any other devices con-
nected in the daisy-chain for any other purpose. The port is strictly dedicated to RRTD or GPM-F usage when
COM2 USAGE
is selected as “RRTD only”, “GPM-F only”, or “RRTD & GPM-F”.
The field ground module (GPM-F) has a fixed slave address of 1. Therefore, the RRTD SLAVE ADDRESS setting is appli-
cable only to the RRTD unit and has a setting rage of 2 to 254 if the
COM2 USAGE
is set as “RRTD & GPM-F”.
Power must be cycled to the G60 for changes to the
COM2 USAGE
setting to take effect.
c) ETHERNET NETWORK TOPOLOGY
The G60 has three Ethernet ports. Each Ethernet port must belong to a different network or subnetwork. Configure the IP
address and subnet to ensure that each port meets this requirement. Two subnets are different when the bitwise AND oper-
ation performed between their respective IP address and mask produces a different result. Communication becomes
unpredictable when more than one port is configured to the same subnet.
Example 1
IP1/Mask1: 10.1.1.2/255.255.255.0 (where LAN 1 is 10.1.1.x/255.255.255.0)
IP2/Mask2: 10.2.1.2/255.255.255.0 (where LAN2 is 10.2.1.x/255.255.255.0)
IP3/Mask3: 10.3.1.2/255.255.255.0 (where LAN3 is 10.3.1.x/255.255.255.0)
Example 2
IP1/Mask1: 10.1.1.2/255.0.0.0 (where LAN1 is 10.x.x.x/255.0.0.0)
IP2/Mask2: 11.1.1.2/255.0.0.0 (where LAN2 is 11.x.x.x/255.0.0.0)
IP3/Mask3: 12.1.1.2/255.0.0.0 (where LAN3 is 12.x.x.x/255.0.0.0)
Example 3 — Incorrect
IP1/Mask1: 10.1.1.2/255.0.0.0
IP2/Mask2: 10.2.1.2/255.0.0.0
IP3/Mask3: 10.3.1.2/255.0.0.0
This example is incorrect because the mask of 255.0.0.0 used for the three IP addresses makes them belong to the same
network of 10.x.x.x.
NOTE
NOTE
Summary of Contents for Multilin g60
Page 10: ...x G60 Generator Protection System GE Multilin TABLE OF CONTENTS INDEX ...
Page 32: ...1 22 G60 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 160: ...4 30 G60 Generator Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 486: ...5 326 G60 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 518: ...6 32 G60 Generator Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 532: ...7 14 G60 Generator Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 748: ...D 10 G60 Generator Protection System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 760: ...E 12 G60 Generator Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...