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Counting Characters in a String Field

Created by: SDixon578 at: 2/24/2014 1:09 PM (3 Replies)

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2/24/2014 1:09 PM	Rate (0)
SDixon578 Member Joined: 2/24/2014 Last visit: 8/11/2015 Posts: 1 Rating: (0)	Is it possible to count characters in a string field? I keep having trouble with my program due to the cameras only returning a partial result - even though they shouldn't. I want to add logic to only fire the output when the srting is 8 characters long. Is this possible? Thanks

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2/24/2014 6:59 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (985)	SDixon578 Is it possible to count characters in a string field? I keep having trouble with my program due to the cameras only returning a partial result - even though they shouldn't. I want to add logic to only fire the output when the srting is 8 characters long. Is this possible? Thanks Byte [0] gives you the maximum length of string, Byte [1] the actual length of string.
IBN-Service Posts: 8946 Rating: (985)
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2/24/2014 8:09 PM	Rate (2)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 11/15/2019 Posts: 8266 Rating: (1395)	SDixon578 Is it possible to count characters in a string field? I keep having trouble with my program due to the cameras only returning a partial result - even though they shouldn't. I want to add logic to only fire the output when the srting is 8 characters long. Is this possible? Thanks There is a string function to obtain the string length without peeking inside the tag's physical bytes. In this way, should Siemens ever change how a string is stored, you can be assured your code will continue to work as hardware and software evolve by using the string length function. The block is LEN(your_string) To read the max length, MAX_LEN(your_string) will return for string, 254, and for string[20] will return 20.
	science guy
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12/7/2017 2:09 PM	Rate (0)
Jen_Moderator Moderator Joined: 6/19/2017 Last visit: 11/15/2019 Posts: 3624 Rating: (43)	New question published by Kaspervissing79 is split to a separate thread with the subject When or how is the byte [1] "Actual lenght" updated?. Best regards Jen_Moderator

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