Wierd Issue converting a String to a integer file (PLC5)

[wlemst88]

Hey all,

I've encountered something weird today that I can't explain.

I have a variable in a string file, call it ST15:18. I need to convert this value to an integer file. So I do a copy from the string to a N37:60, with a length of 5. N37:60 is the length, fine. But if the varible in the string is less than 10 (ie only one number) then the value in the integer shows up with a "2" concatonated onto it. For example, if ST15:18 holds a 52, then I copy it over to N37:60, and N37:61 holds the ASCII value for 52. But if ST15:18 holds an 8 (or anything else less than 10) then N37:61 holds the ASCII value for 82 (instead of 8). Anyone know why this is? I got around the problem by concatonating a 0 before the 8, and then the copy works fine. But I don't understand!

Wes

 

[Mark Buskell]

Why don't you just use the ACI instruction. Ascii To Integer.

 

[wlemst88]

Because that converts the value to the original value, rather than the integer representaion of the ASCII value.

So for example "13" in the string would be "13" in the N37:61 rather than "12595"