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Sending String to WinCC

Created by: ShahinM at: 2/7/2007 2:36 PM (6 Replies)

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2/7/2007 2:36 PM	Rate (0)
ShahinM Silver Member Joined: 11/8/2005 Last visit: 6/5/2024 Posts: 335 Rating: (3)	I want to know,how can I send a string fromPLC to WinCC?

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2/7/2007 3:04 PM	Rate (0)
April Posts: 1776 Rating: (95)	Hi, this depends on your PLC and the communication driver. For SIMATIC S7 it is described in the Online help. Communication > SIMATIC S7 Protocol Suite
April Posts: 1776 Rating: (95)
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2/7/2007 4:32 PM	Rate (0)
Peter Posts: 83 Rating: (8)	Hola, S7 side: In DB create a variable with type of STRING[xx], whereas xx is the number of character+2. for example DB100 address 50 as STRING[22] WinCC side: Create tag under your communication driver (S7/TCPIP, MPI or whatever) with data type "TEXT tag 8-bit character set" and length of 22 (the same length in S7 DB) and address DB100,DBB50 And then you can send string from S7 to WinCC. cheers, Peter
Peter Posts: 83 Rating: (8)
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This contribution was helpful to 2 thankful Users glab Tom H

2/8/2007 7:24 AM	Rate (0)
ShahinM Silver Member Joined: 11/8/2005 Last visit: 6/5/2024 Posts: 335 Rating: (3)	If I want to send string with instance DB,what should I do?

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2/8/2007 11:29 AM	Rate (0)
Peter Posts: 83 Rating: (8)	Hi SM, same methode... in S7 open the FB and create tag as STAT variable with datatype STRING[xxx]. Generate again the instance DB. Note the address and access it via WinCC as explained in my previous reply. For example: FB123 and DB123. STAT variable with datatype STRING[xx] at address 80. In WinCC create tag with address DB123.DBB80 with length xx. I hope you know what you are doing when accessing DB instance. Good luck, Peter
Peter Posts: 83 Rating: (8)
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2/16/2007 8:22 PM	Rate (0)
ShahinM Silver Member Joined: 11/8/2005 Last visit: 6/5/2024 Posts: 335 Rating: (3)	If I want to use AS-OS to send these tags to WinCC,what should I do?

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5/17/2016 7:23 AM	Rate (0)
sepehr.hsn Advanced Member Joined: 2/6/2015 Last visit: 11/26/2023 Posts: 44 Rating: (4)	Hello, I used an I/O field for entering a TEXT and i want send this string var to S7. so i used a string var that is defined in a Data Block, in wincc when i assign I/O field to this Tag in DB i can't see any change in it. How can i fix it ? Tanks

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