Real time clock lost after program update?

Ethan Zeman 2 years ago updated by Gustav Widén (System support) 2 years ago 1

Reportedly I had a customer who lost the date and time on one of their MD4s after recently flashing a program update (we went from 3.0 to Design 5.0 as part of the update).

Is there any chance this had to do with the update?  I think it's more likely that the real time clock had already failed on this unit and they just discovered it when they did the update as we've had a handful of hardware related issues with the MD4s losing the time saving mechanism in the past.

Below is our system architecture and a photo the customer sent me of the failure. 

Please let me know your thoughts.

It cannot have been version 3.0 that the system was upgraded from, the version that the MD4-7 was introduced in was version 3.10. The system must have been on a later 3.x version, e.g. 3.19.12

But with that said, the system shouldn't loose its RTC when updating. 

I am not sure, but what you might possibly have is one MD4 with a bad RTC component. If that is the case you could spot it by first setting the date and time in the system, and then start up each module alone without starting the other two.