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Reading S7-1500's I or Q address data from Comfort Panel

Created by: Gabe at: 10/2/2013 8:14 PM (9 Replies)

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10/2/2013 8:14 PM	Rate (0)
Gabe Posts: 21 Rating: (2)	I have an s7-1500 (1516-3 PN/DP) and am trying to read data from %I or %Q addresses to a TP1900 Comfort Panel. I'm getting an error "Invalid data type for selected PLC". I can read the global memory addresses but not the ones mentioned above. Any ideas what is happening? I don't have this problem with an S7-1200 PLC. Thanks you Gabe Tosello
Gabe Posts: 21 Rating: (2)
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10/3/2013 11:34 AM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/28/2025 Posts: 4434 Rating: (1487)	Hi, do you wrok with STEP7 V12 SP1 upd2? I tried to reproduce your problem but I can't. Can you post a simple program example, or at least, some printscreens about it?
	Denilson Pegaia Siemens Industry Sector Technical Support
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10/3/2013 1:35 PM	Rate (0)
Gabe Posts: 21 Rating: (2)	Yes, I work with STEP 7 V12 SP1. See the screenshot attached. The pink area reference an %I or %Q address. The other one references a memory address. Thanks Gabe Tosello Attachment C:\Documents and Settings\tosellog\Desktop\InvalidDataType.JPG (314 Downloads)
Gabe Posts: 21 Rating: (2)
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10/4/2013 11:42 AM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/28/2025 Posts: 4434 Rating: (1487)	Hi, could you please post a printscreen of the Rig39_Cntrl_Pwr variable definition on PLC side?
	Denilson Pegaia Siemens Industry Sector Technical Support
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10/4/2013 7:56 PM	Rate (0)
Gabe Posts: 21 Rating: (2)	See attached file. Gabe Tosello Attachment C:\Documents and Settings\tosellog\Desktop\IO_Configuration.JPG (300 Downloads)
Gabe Posts: 21 Rating: (2)
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10/4/2013 9:55 PM	Rate (0)
Denilson Pegaia Diamond Expert Joined: 9/23/2005 Last visit: 12/28/2025 Posts: 4434 Rating: (1487)	Hi, I suspect that it is not a question of address but of the Display format. Please try to change your IO field display format property from decimal to Binary
	Denilson Pegaia Siemens Industry Sector Technical Support
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10/7/2013 1:28 PM	Rate (0)
Gabe Posts: 21 Rating: (2)	I'm not sure what you mean. When I define a tag in the "Default tag table" of the Comfort Panel, the data type is predefined by the PLC configuration. Using "absolute access" or "symbolic access" as an Access mode gives me the same error. Regards, Gabe Tosello
Gabe Posts: 21 Rating: (2)
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10/7/2013 8:23 PM	Rate (0)
Gabe Posts: 21 Rating: (2)	Well, here's what I did today. I thought there might have been some corruption in the S7 file that affected the PLC data types. So I created a whole new simplified project, added theIO modules, and named all the tagsbut did not have any ladder logic. Tried to connect to a PLC tag via the HMI and got the same datatype error as previous. So this simplified version of the S7 configuration had the same problem. But ... I went back to the PLC and toogled (re-selected and manually set the datatypes) the INT and BOOL PLC datatypes (%IW and%Q) and the datatype error in the HMI had disappeared. There is something in STEP 7 and that particular PLC that does not configure the datatype properly. Gabe Tosello
Gabe Posts: 21 Rating: (2)
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This contribution was helpful to 1 thankful Users JoshD

7/15/2015 2:01 PM	Rate (0)
pz1974 Posts: 4 Rating: (0)	I had the same issue with "Invalid data type for selected PLC" The cause of the problem was a wrong Connection which was set to the tag in HMI Tags default tag table. The Connection was changed somehow after removing HMI and adding it again in Devices&networks.
pz1974 Posts: 4 Rating: (0)
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8/20/2015 10:24 AM	Rate (0)
Min_Moderator Posts: 4758 Rating: (122)	New question published by aditzu is split to a separate thread with the subject Read data from Bool array, "Invalid Data Type ...". Best regards Min_Moderator
Min_Moderator Posts: 4758 Rating: (122)
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