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| 11/7/2011 4:56 AM | |
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Posts: 2348 Rating:
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1) There is no attachment) 2) Try finding SFC14 3) If didnt help - find all indirect addressing in PLC to see where it can be. |
| 11/7/2011 7:29 AM | |
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Posts: 98 Rating:
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Hi Aret, Thanks for respons 1. Sorry i have revised 2. "SFC14" in offline this not use, when see online this object protected
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| 11/7/2011 7:34 AM | |
Joined: 10/7/2005 Last visit: 9/4/2025 Posts: 3049 Rating:
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Hello Chehombing tick "Overlapping access to memory areas" in the "Go To Location" window and see if that fixes it (the Output might be accessed as a whole Byte in which case it will be shown once you make the above tick, see also the "Help" button in the "Go To Location" window for more on this). If it doesn't help, please upload your S7 project here for evaluation. |
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Cheers |
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| 11/7/2011 8:07 AM | |
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Posts: 98 Rating:
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Hi fritz, Thanks please find attach for my project program I have tried, q0.0 is find but is not work, because have command from q1.0 Cheers. Ando AttachmentMmu_34.zip (176 Downloads) |
| 11/7/2011 8:09 AM | |
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Posts: 98 Rating:
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Please see attachment for HMI capture for command digital output. Cheers Ando
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| 11/7/2011 8:42 AM | |
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Joined: 10/7/2005 Last visit: 9/4/2025 Posts: 3049 Rating:
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Hello Chehombing had a quick look at your project and only Q 0.0 and Q 1.0 are used inside FC17 (did also a quick source file based search for any possible indirect addressing, SFC20 usage etc., but failed to find any). It appears though that there is a corruption of either FC17 and/or OB1. FC17 has three output paramters (type WORD, BYTE and BYTE) which areNOT written tooinside FC17 and which are NOT part of FC17's call inOB 1 (there is a time stamp conflict warning about this when you openOB1). I wouldn't be surprised if the BYTE outputs of FC17 where used to write to QB0 and QB1 at one stage, but amonlyspeculating here. Unless you can get hold of an original uncorrupted project, we may never know. The only other possibility I can see is that the outputs are driven directly by your HMIinstead of by any PLC logic (i.e. HMI writes directly to the DQ via the button). Any chance of finding a documented orginal project (or perhaps a printout of it)? |
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Cheers |
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| 11/7/2011 9:26 AM | |
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Posts: 98 Rating:
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Hi fritz, Yes..for OB1 for call FC17, have conflict with OB35 I have deleted call FC 17 on OB1...there are no conflict again, I think, no directly command from HMI, because they have command to auto open and close when process trips. andunfortunately, i don't have the original documentation you can see the another program for Festo system, you can find it attachment for GSD. But..thanks for respons...I will try to find one by one for pointer this adress. Thank you.. Cheers. Ando AttachmentCPX_Profibus_GSE_052011.zip (169 Downloads) |
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