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String datatypes in user web pages

Created by: Jorsal at: 5/5/2013 6:10 PM (2 Replies)

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5/5/2013 6:10 PM	Rate (0)
Jorsal Posts: 74 Rating: (31)	Hi, Does anybody know, if it is or will be possible to read (and eventually write) STRING values on a user web page in the S7-1500? I have tried on the S7-1200, but If i simply make a readout like: [code]:="DB_Name".DataString:[/code] -Then the readout is empty. I can readout all the simple datatypes like BOOL,INT,REAL etc, but not a complex one like STRING. The S7-1500 Web Server Manual (A5E03484625-01) as well as the S7-1200 user manual doesn't really say anything about datatypes, although all examples are with simple datatypes. I am still waiting for my ordered S7-1511-1PN to arrive, so I haven't tested it on the S7-1500 yet.
Jorsal Posts: 74 Rating: (31)
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5/6/2013 10:01 AM	Rate (1)
Ryze Experienced Member Joined: 8/2/2010 Last visit: 8/22/2024 Posts: 11 Rating: (2)	Hi, here you can find an application example. There is a full description about Webserver on S7-1200. The function is the same for S7-1500. http://support.automation.siemens.com/WW/view/en/58862931 In the descrition are some topics about string variables on HTML: Page 46 / 4.1.4 DataString (FB2) Page 53 / Figure 4-15 (HTML Code) Ialso recommmend that you use instruction S_MOVE to fill your DataString variable in S7-Program. Attachment E:\s_move.GIF (1186 Downloads)

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This contribution was helpful to 1 thankful Users Jorsal

5/12/2013 6:54 PM	Rate (0)
Jorsal Posts: 74 Rating: (31)	Thanks a lot - now it works for me. I wonder why it didn't work in the first place though.
Jorsal Posts: 74 Rating: (31)
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