hello miss/mr
We have a control system that works with plc S5-135U.
two cpu (p/n:6ES5 921 & 922)of plc have ram card.
The problme is here:When cpu manualy have gone to stop (without intrupt power supply and with good battery back up)and cant run again cpu until download again programs.
We have a control system that works with plc S5-135U.
two cpu (p/n:6ES5 921 & 922)of plc have ram card.
The problme is here:When cpu manualy have gone to stop (without intrupt power supply and with good battery back up)and cant run again cpu until download again programs.