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Simulating Analog Inputs with PLCSIM and Step7 V11

Created by: Eric K at: 5/17/2013 7:12 PM (7 Replies)

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5/17/2013 7:12 PM	Rate (0)
Eric K Posts: 25 Rating: (1)	Apparently the syntax for analog inputs/outputs changes from Step7 5.5 to Step7 11 from PIW/PQW to IW/QW. It appears PLCSIM does not accept the IW/QW Syntax nor does TIA Portal Accept the PIW/PQW Syntax. How can Analog Input Values be simulated in PLCSIM and TIA Portal? I never had an issue in V5.5. Thank you
Eric K Posts: 25 Rating: (1)	Last edited by: Eric K at: 5/20/2013 6:18 PM
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5/22/2013 3:57 PM	Rate (0)
KM_AS Silver Expert Joined: 11/23/2011 Last visit: 9/9/2025 Posts: 202 Rating: (32)	Hello Eric K, please have a look on this link: Maybe it will be helpful in some case http://support.automation.siemens.com/WW/view/de/61931797

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5/22/2013 4:35 PM	Rate (0)
Eric K Posts: 25 Rating: (1)	KM_AS: That link does not address Analog Inputs.Perhaps my request is not clear. I want to be able to modify the values of the IW addresses of my Analog Inputs just like I can modify the inputs of my Discrete Inputs. The addressing format for Analog I/O has changed, can someone confirm if PLCsim has been updated to support the new syntax? Thanks Eric
Eric K Posts: 25 Rating: (1)
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5/22/2013 5:55 PM	Rate (1)
Bofely Posts: 123 Rating: (5)	Try: [code]%IW1[/code] or [code]%IW1:P[/code] (Here the address is 1) This work in V12. I'm not sure if it work in V11.
Bofely Posts: 123 Rating: (5)	Last edited by: Bofely at: 5/22/2013 5:56 PM
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This contribution was helpful to 1 thankful Users Eric K

5/22/2013 7:14 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 8/31/2025 Posts: 6874 Rating: (1368)	Eric K KM_AS: That link does not address Analog Inputs.Perhaps my request is not clear. I want to be able to modify the values of the IW addresses of my Analog Inputs just like I can modify the inputs of my Discrete Inputs. The addressing format for Analog I/O has changed, can someone confirm if PLCsim has been updated to support the new syntax? Thanks Eric Hello, For simulation without error especially for peripheral I/O,the addresses should be included in hardware and also downloaded to simulating module.That is the case for both STEP 7 and TIA Portal for S7 300/400. Hope that helps Hamid Hosseini
	Demo Channel on Youtube
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5/22/2013 7:45 PM	Rate (0)
Eric K Posts: 25 Rating: (1)	Bofely %IW1:P Bofely: entering syntax IW290:P into a logic block in the V11 programworks, and the logic isable to read PIW 290from PLCsim. Now my next question is, will this still be able to read the Analog Value from the Physical I/O cards? I don't have any real hardware in front of me to test it. That being said, what is the difference between IW290 and IW290:P now with Portal? Has there been a differention made between Profibus/Profinet Analog I/O and Physical Analog I/O? Does I/O have to be handled different between the 1200/1500 and 300/400 PLC processors? Eric
Eric K Posts: 25 Rating: (1)
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5/26/2013 1:45 PM	Rate (0)
Bofely Posts: 123 Rating: (5)	From the system manual (http://support.automation.siemens.com/WW/view/en/68113685), page 1250: Append the suffix ":P" to the I/O address if you want the program to access the module directlyinstead of using the process image.
Bofely Posts: 123 Rating: (5)	Last edited by: Bofely at: 5/26/2013 1:46 PM Last edited by: Bofely at: 5/26/2013 1:46 PM
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5/28/2013 9:42 PM	Rate (0)
Eric K Posts: 25 Rating: (1)	In Conclusion: It looks like a ":P" requried connect TIA Portal to PLCsim, so for any simulation, this should be appended to any Analog Input. But unless necessary, due to scan times of the Process Image, after simulation, this ":P" should be removed prior to commissioning. Comments?
Eric K Posts: 25 Rating: (1)
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