User manual

Digital Monitor AMC-1DBx Series User Manual
105
The following running MODBUS messages appear in the communication log file every minute for each
Modbus channel:
MB<Channel #> Pkt(s) TX:<Count> RX:<Count>
MB<Channel #> CRCs G:<Count>,B: <Count>
MB<Channel #> TO:<Count>,dtim:<Count>
MB<Channel #> CE:<Count>,Gap:<Count>,Len:<Count>
MB<Channel #> Char(s) TX:<Count>,RX:<Count>
The following MODBUS exception messages appear in the communication log file when they occur and
indicate problem(s) in the system which should be addressed:
MB<MB Channel #>:<MB Address> Timeout
MB<MB Channel #>:<MB Address> Short Message
MB<MB Channel #>:<MB Address> Bad RX CRC
MB<MB Channel #>:<MB Address> RX PARITY: <Count> FRAMING: <Count> OVERRUNS: <Count>
DROPPED:<Count>
MB<MB Channel #>:<MB Address> RX PACKET GAP:<Count> PARITY: <Count> FRAMING: <Count>
OVERRUNS: <Count> DROPPED: <Count>
The following Sensor exception messages also appear in the communication log file as a result previous
MODBUS exception messages:
Sensor <MB Channel #>:<MB Address> Inst:<MB Instance> Missing Device Fault
Sensor <MB Channel #>:<MB Address> Inst:<MB Instance> Bad Read of Status Fault
Sensor <MB Channel #>:<MB Address> Inst:<MB Instance> <Device Name> Bad Read Fault
The following Relay exception messages also appear in the communication log file as a result previous
MODBUS exception messages:
Relay <MB Channel #>:<MB Address>:<MB Instance> Missing Device Fault
Relay <MB Channel #>:<MB Address>:<MB Instance> Bad Read Fault
Relay <MB Channel #>:<MB Address>:<MB Instance> Bad Write Fault
The following Analog Output exception messages also appear in the communication log file as a result
previous MODBUS exception messages:
Analog_out <MB Channel #>:<MB Address>:<MB Instance> Missing Device Fault
Analog_out <MB Channel #>:<MB Address>:<MB Instance> Bad Read of Status Fault
Analog_out <MB Channel #>:<MB Address>:<MB Instance> Bad Write Fault