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String Length

6/22/2006 3:04 PM	Rate (0)
Controls_Guy Posts: 30 Rating: (2)	I am writing to a database using SQL statements through scripting. Some of the SQL statements are messy due to the length, including tags requiring a lot of commas, single quotes etc. I would like to be able to display this string for troubleshooting in WinCC Flex. However, it appears the string variable is capped at 80 characters which is frustrating since a lot of my SQL statements are greater than that. Step7 allows 254 characters for a string. I dont understand the logic of capping the string variable on the HMI side less than that of Step 7. In this case all SQL statements are generated on the HMI side. Can I go over 80 characters??? I would hate to have to break this down to multiple strings in order to display them.
Controls_Guy Posts: 30 Rating: (2)
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6/23/2006 10:42 AM	Rate (0)
Nemo Posts: 3149 Rating: (172)	Hi did you use a Textfield for displaying? According to WinCC flexible help you can use within a Textfield as many characters as you like. Or do you use string-variables in your tag-management. According to the help for a string-variable up to 255 character are permitted... nemo
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6/23/2006 7:14 PM	Rate (0)
Controls_Guy Posts: 30 Rating: (2)	Nemo, I am using an I/O field since I have a variable associated with it. The variable is defined as a string tag. After reading your post, I double checked the string variable decleration and realized I had defined it as a string length of 80 that would have caused my problem. I changed the length to 125. However, I still get the same message. I did a rebuild all and still capped at 80 characters for the I/O field. I get a balloon that pops up and says "Only Values between 1 and 80 are allowed". Attachment wincc_msg.JPG (630 Downloads)
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6/26/2006 9:28 AM	Rate (0)
Nemo Posts: 3149 Rating: (172)	Hi, are right, EA-fields are limited to 80 characters, but did you already have a try with a TEXTFIELD (setting the text via VBS)? nemo
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6/27/2006 2:25 PM	Rate (0)
Controls_Guy Posts: 30 Rating: (2)	Nemo, Thanks for the text field tip that did work. I still believe that you should be able to have an IO field with length equal to that of Step7. I hope Siemen's will address that in future revisions. Thanks again for your support![:D]
Controls_Guy Posts: 30 Rating: (2)
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