ISPSoft User Manual 17.4 Program Comparison 17.4.1 Introduction to Program Comparison ISPSoft provides a program comparison tool for users to compare 2 ISPSoft projects, or to compare an ISPSoft project and the PLC internal programs. Here are the comparison rules. Comparison items include product series, models, POUs, global symbols, local symbols and programs. For a POU comparison, the name of a POU will be checked first. Different POU name will be seen as different, even for those with the same contents. For a variable symbol comparison, the order of a variable symbol will be checked first.
Different variable symbol order will be seen as different, even for those with the same contents. As the image shown below, the var_a and var_b from the left and right are with different order; thus they will be seen as different. 17-64