S5 problem

T Gibbs · Nov 22, 2017

Who here is an expert on S5?

zova · Nov 22, 2017

we are not yet died out

sigmadelta · Nov 22, 2017

Here!

T Gibbs · Nov 22, 2017

We have an S5 that will not go into run. We think the fault is DB1-FE. Any idea what this would be?

sigmadelta · Nov 22, 2017

Try putting the CPU in RUN using STEP 5. (Menu: PLC -> Start CPU)

T Gibbs · Nov 22, 2017

We did that, several times. We have reloaded the program, changed the CPU, changed the backplane, etc. it still acts the same way

T Gibbs · Nov 22, 2017

We have now started changing I/O cards

sigmadelta · Nov 22, 2017

Is COLD RESTART an option in STEP 5? I assume you have a CPU 928B.

T Gibbs · Nov 22, 2017

Yes, we tried cold restart

sigmadelta · Nov 22, 2017

Since you've been changing CPUs and reloading the program etc...

What happens if you clear the CPU memory and put it in RUN? DO you have an EPROM installed?

sigmadelta · Nov 22, 2017

Can you post pictures of each screen of the ISTACK and BSTACK?

T Gibbs · Nov 22, 2017

Do not have eeprom. We have RAM on this one

T Gibbs · Nov 22, 2017

This is second screen of I stack

T Gibbs · Nov 22, 2017

B stack will not show anything

sigmadelta · Nov 22, 2017

Can you clear the CPU memory and see if the CPU goes into RUN?

S5 problem

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