Opta PLC Modbus restart

Hardware Opta
1

Sometimes Modbus connections hang up (i have Opta running as Master for both RTU and TCP). Especially when devices are unavailable Opta does never try connect them again. A cold restart does it's job but i would like to automatically detect hanging devices.

Does someone know how to implement a ST function for resetting the modbus?

I guess it should be possible with the sys* functions tho.

regards, Rouven

2

try installing PLC-IDE 1.0.3 and reupload the program to the Opta using 1.0.3 to compile it.
let us know if this change the behaviour