Prosoft-technology MVI69L-MBS Manuel d'utilisateur télécharger pdf (Page 101)

MVI69L-MBS ♦ CompactLogix Platform Diagnostics and Troubleshooting

Communication Module User Manual

ProSoft Technology, Inc. Page 101 of 154

January 6, 2014

6.5 Communication Error Codes

Standard Modbus Protocol Exception Code Errors

Code

Description

Illegal Function Code

Illegal Data Address

Illegal Data Value

Failure in Associated Device

Acknowledge

Busy, Rejected Message

Module Communication Error Codes

Code

Description

-1

CTS modem control line not set before transmit

-2

Timeout while transmitting message

-11

Timeout waiting for response after request

253

Incorrect slave address in response

254

Incorrect function code in response

255

Invalid CRC/LRC value in response

Command List Entry Errors

Code

Description

-41

Invalid enable code

-42

Internal address > maximum address

-43

Invalid node address (< 0 or > 255)

-44

Count parameter set to 0

-45

Invalid function code

-46

Invalid swap code

Note: If an error code is reported that is not listed above, check with the documentation of the end

device. Device-specific error codes can be produced by the end device.

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