S7-200 Checksum calculation.

Fiona

Member
F
Join Date
Apr 2004
Posts
14
Hi Guys.

I've got to print a barcode from a s7200 plc the last character of the barcode is to be a checksum. (mod 43)

Does anyone have a routine for calculating the checksum?
I'm guessing it will involve some sort of lookup table.

I'm ok with adding the values of the individual characters and subtracting 43 until I have a remainder that I can use to reference an entry in the LUT.

Thanks.
 

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