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Display STRING from DB in HMI

5/22/2012 11:26 AM	Rate (0)
Sujoy Posts: 7 Rating: (0)	Hi all, Before evrything, I'm a newbie here. I'm using a barcode reader whose scanned value is stored in a DB (CPU used:313C-2DP) as STRING[12]. I want to display the scanned value in the HMI (OP77A). How do I do it? Please help. Its very urgent. Best regrds, Sujoy.
Sujoy Posts: 7 Rating: (0)
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5/22/2012 11:37 AM	Rate (0)
BeVee Platinum Member Joined: 7/18/2011 Last visit: 4/11/2025 Posts: 521 Rating: (91)	Hi Sujoy, What visualisation software are you using ? Is the string that you scanned stored as S7 string (including 2 bytes header) or is it stored as an array of chars ? Kind regards, BV

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5/22/2012 11:43 AM	Rate (0)
Sujoy Posts: 7 Rating: (0)	Dear BV, I'm using WinCc Flexible. Yes, it is a string (with 2 byte header). Regards, Sujoy.
Sujoy Posts: 7 Rating: (0)
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5/22/2012 12:09 PM	Rate (0)
BeVee Platinum Member Joined: 7/18/2011 Last visit: 4/11/2025 Posts: 521 Rating: (91)	Hi Sujoy, 1. Createcommunication connection to the PLC I suppose this is already done 2. Define the new tag data type: string length:12 connection: the one youcreated under point 1 address: start address of your string in the PLC 3. Create an IO field on the screen where you want to display the tag Mode output, or input/output if you want to change it on the screen too Format type: string String field length: 12 Tag: enter the name of the tag you created under point 2 Make sure the size of the I/O field is big enough to display 12 chars Kind regards, BV

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3/24/2017 10:43 PM
sathishkumarbe198... Posts: 1 Rating: (0)	Sujoy Dear BV, I'm using WinCc Flexible. Yes, it is a string (with 2 byte header). Regards, Sujoy.
sathishkumarbe198... Posts: 1 Rating: (0)
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