Comm Port Monitor; Factory Service - GE 489 Instruction Manual

4.13 S12 TESTING
PATH: SETPOINTS S12 TESTING

COMM PORT MONITOR

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4
During communications troubleshooting, it can be useful to see the data being transmitted to the 489 from some master
device, as well as the data transmitted back to that master device. The messages shown here make it possible to view that
data. Any of the three communications ports may be monitored. After the communications buffers are cleared, any data
received from the monitored communications port is stored in Rx1 and Rx2. If the 489 transmits a message, it appears in
the Tx1 and Tx2 buffers. In addition to these buffers, there is a message indicating the status of the last received message.
PATH: SETPOINTS S12 TESTING

FACTORY SERVICE

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This section is for use by GE Multilin personnel for testing and calibration purposes.
4-82
COMM PORT MONITOR
ð
MONITOR COMM. PORT:
ENTER
ð
ESCAPE Computer RS485
CLEAR COMM.
ESCAPE
BUFFERS: No
MESSAGE
LAST Rx BUFFER:
ESCAPE
Received OK
MESSAGE
Rx1: 02,03,00,67,00,
ESCAPE
03,B4,27
MESSAGE
Rx2:
ESCAPE
MESSAGE
Tx1: 02,03,06,00,64,
ESCAPE
00,0A,00,0F
MESSAGE
Tx2:
ESCAPE
MESSAGE
FACTORY SERVICE
ð
ENTER FACTORY
ENTER
ð
ESCAPE PASSCODE: 0
489 Generator Management Relay
4.13.6 COMM PORT MONITOR
Range: Computer RS485, Auxiliary RS485,
Front Panel RS232
Range: No, Yes
Range: Buffer Cleared, Received OK, Wrong Slave
Addr., Illegal Function, Illegal Count, Illegal Reg.
Addr., CRC Error, Illegal Data
Range: received data in HEX
Range: received data in HEX
Range: received data in HEX
Range: received data in HEX
4.13.7 FACTORY SERVICE
Range: N/A
4 SETPOINTS
GE Multilin