MurrayR
Member
In the last two months I have had an issue after making some online changes between the software and an Schneider M221 PLC via ethernet network.
On going offline the software tells me that I have a communications error.
The first time it happened I found that the PLC code was missing from the PLC and had to be reinstalled.
Today the PLC did not go out of the run mode but all the counter and timer presets were zero. Click on the timer showed me the original preset. Re entering the preset and applying the change corrected the issue for the 28 timers.
I have made online changes to these PLC's for more than two years.
Has anyone experienced this before?
On going offline the software tells me that I have a communications error.
The first time it happened I found that the PLC code was missing from the PLC and had to be reinstalled.
Today the PLC did not go out of the run mode but all the counter and timer presets were zero. Click on the timer showed me the original preset. Re entering the preset and applying the change corrected the issue for the 28 timers.
I have made online changes to these PLC's for more than two years.
Has anyone experienced this before?
