MSC-3 Start Up
Error:
Function code 1 byte 134 (128+function code, 0x86)
Exception code 1 byte 1, 2 or 3
Function Code 07: Read Exception Status
Request:
Function code 1 byte 7
Response:
Function code 1 byte 7
Output data 1 byte 0 to 255
Function Code 08: Diagnostics, Sub Codes 0, 2, 10...18, 20
Request:
Function code 1 byte 8
Sub function 2 bytes
0, 0 Return query (request) data
0, 2 Return diagnostic register
0, 10 Clear counters and diagnostic register
0, 11 Return network message count
0, 12 Return network communication error count
0, 13 Return network exception error count
0, 14 Return slave message count
0, 15 Return slave no response count
0, 16 Return slave NAK count
0, 17 Return slave busy count
0, 18 Return network character overrun count
0, 20 Clear overrun counter and ag
Data 2 bytes Data for MSC-3 MODBUS diagnostics
Response:
Function code 1 byte 8
Sub function 2 bytes 0,2,10...18,20
Data 2 bytes
Error:
Function code 1 byte 136 (128+function code, 0x88)
Exception code 1 byte 1 or 3
Function Code 15: Write Multiple Coils
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