I’m looking for a way to access individual elements inside a tag that has been configured as StringArray. I want to access it from within a script. How can I do that? In fact, I need to know the uper bound which could be anything. So how could I know the size of the array programmatically?

OK I was able to write back using that code: stringArray = system.tag.read("StringArray").value for index in range(len(stringArray)): element = "StringArray[" + str(index) + "]" system.tag.write(element, "") I would use itemCount = len(stringArrays) to know the exact length of the array and make…

Here are three (of many) possible ways to get each element in the array. Python actually makes it easier to get the the individual element than do get an index in the loop (that’s what the enumerate() call is for, in the third example). As you can see, individual elements can be reference with strin…

How about writing back in each element? Suppose I want to clear the array and write an empty string in each element?

system.tag.write("StringArray", [""] * len(current))

Sorry I ment a specific element to write in the array.

You can also write back to individual elements without blanking the rest of the array, if that’s what you’re after: system.tag.write("StringArray[%s]" % 1, "Test") Also, doing the string formatting of the tagpath inline should definitely work - although I notice that in your example code you’re no…

With this code: tagSource = "[ProviderX]SomeUDDTInstance/Message[%s]" % idx tagDest = "[ProviderX]SomeUDDTInstance/Message[%s]" % (idx + 1) valueSource = system.tag.read(tagSource) valueDest = system.tag.read(tagDest) print tagSource print tagDest Why do I print the name of the tag instead of its …

You need to put .value on the end of the system.tag.read calls. valueSource = system.tag.read(tagSource).value valueDest = system.tag.read(tagDest).value

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Access StringArray Tag elements from script

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