i have error in simatic s5

Dear Experts,
i have a S5 115U cpu 942b


If I power up the system the Run led is off . BASP led is on.

Digital Input led is ON but All digital output led is off

i connect pg2000 with cpu & take shot screen for program istack .

i want need know what's the problem ?

& i want know my the eprom is working or no & the program still in the eprom?

thanks..

Here is the photo--

can any bady help me????????

Hello Medo,

if did you saw only FB239 to FB251, so I think you are without program in PLC.

Check the link below, that may be useful for your case.

also go to internet  find out book--attached picture--read ch.4 learn how to Reset PLC CPU.

BUT before doing any reset make back up by your pg2000--transfer all program from CPU to PG.

turn off power withdraw EPROM module --you should know all S5 program in EPROM will never loss until you erase EPROM BY SPECIAL DEVICE.

AFTER BACK UP AND TAKE OUT eprom  --DO plc cpu OVER ALL RESET. to see your CPU can run (RUN LED on)--that mean your HW OK, then turn off power insert EPROM , AFTER POWER UP again I think program in eprom will transfer to CPU ram automatically , then you can see CPU running or not and making trouble shooting if CPU stop.  

 https://support.industry.siemens.com/tf/ww/en/posts/s5-115u-942b-overall-reset/61618/?page=0&pageSize=10

medo2016

Dear Experts,
i have a S5 115U cpu 942b


If I power up the system the Run led is off . BASP led is on.

Digital Input led is ON but All digital output led is off

i connect pg2000 with cpu & take shot screen for program istack .

i want need know what's the problem ?

& i want know my the eprom is working or no & the program still in the eprom?

thanks..

Here is the photo--

You are welcome. can you post you trouble shooting result here --which may benefit for others.

thanks