MODBUS recieve hang AC700 version 2013
I have a problem with a Modbus installation.
During normal conditions there are no problem whatsoever.
If something happens, line break or some other disturbances the
Modbus reciever hang and must be restarted by making some
changing in the Modbus setup and then changed back again.
This starts up the communication again.
There is no system alarm, Modbus just stops receiving.
Pls see attached file from log
In earlier versions of Freelance I remember some form of reset.
Is it still there and I dont find it?
Need more information and interested to know, If something happens (line break) > communication breaks receive count freezes (that’s fine) But then when communication again reestablished reciever start receiving? or at this moment also communication hangs ?
You are using modbus rtu(serial) or tcp(ethernet) ? image of modbus interface statistics in lower pen from HWtree will help, while modbus receiver hangs.
AFAIK there are some events on 12th and 13th 2015, but not sure what it is ? but under TCP/IP there are some sings about unreachable destination 117, receive error at invalid address 237. are you using modbus tcp ? and any address in network at 237 ?