Command list entry errors, Module communication error codes – ProSoft Technology 5201-MNET-ASCII User Manual
Page 54
Diagnostics and Troubleshooting
MNET ♦ ProLinx Gateway
Driver Manual
Modbus TCP/IP Interface Module
Page 54 of 78
ProSoft Technology, Inc.
September 1, 2010
Command List Entry Errors
Code
Description
-40
Too few parameters
-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
-47
ARP could not resolve MAC from IP (bad IP address, not part of a
network, invalid parameter to ARP routine).
-48
Error during ARP operation: the response to the ARP request did
not arrive to the module after a user-adjustable ARP Timeout.
Note: When the client gets error -47 or -48, it uses the adjustable ARP Timeout parameter in the
configuration file to set an amount of time to wait before trying again to connect to this non-existent
server. This feature allows the client to continue sending commands and polling other existing
servers, while waiting for the non-existent server to appear on the network.
Module Communication Error Codes
Code
Description
-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