Comm Port Monitor; Factory Service - GE Multilin 489 Instruction Manual

5.13.6 Comm Port Monitor

COMMUNICATION

5.13.7 Factory Service

FACTORY
5–104
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PATH: SETPOINTS S12 489 TESTING
MONITOR COMM. PORT:
[ ] Computer RS485
CLEAR COMM.
MESSAGE
BUFFERS: No
LAST Rx BUFFER:
MESSAGE
Received OK
Rx1: 02,03,00,67,00,
MESSAGE
03,B4,27
Rx2:
MESSAGE
Tx1: 02,03,06,00,64,
MESSAGE
00,0A,00,0F
Tx2:
MESSAGE
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 489 TESTING
ENTER FACTORY
[ ] PASSCODE: 0
This section is for use by GE Multilin personnel for testing and calibration purposes.
CHAPTER 5: SETPOINTS
COMMUNICATION 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: transmit data in HEX
Range: transmit data in HEX
FACTORY SERVICE
Range: N/A
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL