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PLCSIM V5.4 - Input invalid after download PLC program

8/24/2009 11:06 PM	Rate (0)
awu10 Posts: 55 Rating: (0)	Hello, I am using Step 7 V5.4, PLCSIM and WinCC V7.0. I have PIW 560 is defined in PLC program. When I use PLCSIM to Input PIW560, it converted to the symbol, the same symbol as in PLC symbol table. This is ok before I download PLC program. As soon as I download the PLC program, PIW560 becomes invalid. Where is the problem, please advise. Thank you awu10
awu10 Posts: 55 Rating: (0)
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8/25/2009 12:04 AM	Rate (0)
H-H Platinum Member Joined: 7/2/2008 Last visit: 8/7/2025 Posts: 928 Rating: (309)	Hello Awu10, I have some questions like, What is your CPU? Do you have this PIW coming through a CP? I also recommend to take a look at this thread and also to download SP3. Best regards. H-H

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8/25/2009 9:11 PM	Rate (0)
awu10 Posts: 55 Rating: (0)	Hello, H-H I have read the linked thread, I have the following configuration: 1. CPU: CPU 416-2DP 2. PLCSIM Version: V5.4 + SP2 3. S7 V5.4 + SP4 From the thread, it said, PLCSIM SP2 has to bedownto SP1 to solve this problem? Do I have to do this? Thank you awu10
awu10 Posts: 55 Rating: (0)
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1/18/2010 10:40 AM	Rate (0)
SSE Posts: 45 Rating: (8)	Hi, Such an issue may appear when you download a hardware (System data) together with program blocks. Try to start blank PLCSIM simulation and download program blocks only (without system data). Best regards
SSE Posts: 45 Rating: (8)
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