S5 diagnostic OB's?

Hi all,

Are there any diagnostic OB's for S5 (135U) to stop it going into stop when an I/O rack isn't attached?

Thanks in advance

Yes, or at least I believe there is one in the range OB80 to 86. I can't say which one it is until I'm going back to the office on friday. Anyone else can help Marshy?

Kind regards,

Here is a link to a 928B manual which describes the various error processing OB's.

In Step 5 they range from OB19-OB36 (Step 7 are OB80-87,121,122).

http://support.automation.siemens.com/WW/skm/pdfviewer.asp?HitsPerSite=10&ehbid=html_76%2Fehb%2F19397726%2Ehtm&lang=en&nodeid=19396029&query=928B manual&page=1&view=new

Thanks! I won't be able to try until I'm back at work tomorrow but it looks like OB23,24,25 will do the trick. If I remember rightly with the S7 blocks you could just download the OB without any code in them to stop the PLC from going into Stop,is this the same with S5? It's only temporary whilst I sort some SCADA comms to the CP1430.
Thanks once again.

IIRC it's the same.