Error 62 Modbus

[ssk]

Can anybody help with this problem?

I am communicating with a device using Modbus TCP.

I run ok for a while but then start to observe Error 62 messages.

Has anybody suffered a similar problem?

I am using WinXP.

Thanks

[JamesC]

Hi SSK,

I have never observed this behaviour before for modbus, but as the transport protocol is TCP/IP, I have seen error 62 before and it is usually a drop out in communication between the devices. The LabVIEW error information is ("The system caused the network connection to be aborted.") Please can you make sure the modbus device you are communicating to is not dropping the TCP connection, or that you are asking it to do a command that means it can not communicate over the TCP port before the host PC times out.

Regards
JamesC
NIUK and Ireland

[ssk]

It turned out to be a problem with the product under test. A firmware upgrade stopped the device dropping the connection.

Thanks