ProSoft Technology MVI56E-MNETCR - Manual (Page 114)

Reference MVI56E-MNETCR ♦ ControlLogix Platform
User Manual Modbus TCP/IP Multi Client Enhanced Communications Module for Remote Chassis
Page 114 of 159 ProSoft Technology, Inc.
June 14, 2011
Standard Modbus Exception Code Errors
Code Description
1 Illegal function
2 Illegal data address
3 Illegal data value
4 Failure in associated device
5 Acknowledge
6 Busy; message was rejected
Module Communication Error Codes
Code Description
-2 Timeout while transmitting message
-11 Timeout waiting for response after request
253 Incorrect slave/server address in response
254 Incorrect function code in response
255 Invalid CRC/LRC value in response
MNET Client Specific Errors
Code Description
-33 Failed to connect to server specified in command
-36 MNET command response timeout
-37 TCP/IP connection ended before session finished