My issues go beyond Wrte protecting the M2017P
The issue is the loss of the program, due to electrical transients.
I have gone through the excersize to add ing TVS diodes, as well as isolating the T100MD888 using a Dc/Dc converter.
This is a mobile aplication where power is +12 VDC from a vehicle. We have purchased in excess of FORTY T100MD-888+ units, and I buy replacement M2017P's
My ONLY problem is the loss of the program due to some electrical issue ( Load Dump has been mentioned as the culprit). NO OTHER component has failed as much as the M2017P.
Some times I can re program, but other times, the PLC will not communicate to the host PC, and the solution is to replace the M2017P.
So again is it possible to replace the M2017P with a One Time programmable PROM?.
You have no idea how pissed I am about this issue.
Ben