9/24/2016 11:26 AM | |
Joined: 10/12/2014 Last visit: 9/19/2024 Posts: 66 Rating: (0) |
Please i want ur help |
9/24/2016 2:30 PM | |
Joined: 9/27/2006 Last visit: 10/13/2024 Posts: 12287 Rating: (2685) |
Hello neththi; The S5 CPUs had some physical registers (accessible on the system board with specific instructions) of a type that are not used in a S7 structure. You could call Sequence registers on some CPUs for example, and in the CPU 945 (and a few others) you could address Indirect registers, using instructions LIR (load indirect register) and TIR (transfer to indirect register. They were used for indirect addressing in the S5 CPU; since they do not exist on a S7 board, they will not be converted. You have to find other ways of programming your indirect addressimg that a S7 will recognize. The best explanation I have found on how to "translate" them to a S7 system comes from our friend fritz, in the following discussion: conversion S5 to S7 (LIR and TIR) https://support.industry.siemens.com/tf/ww/en/posts/33637/ Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 9/24/2016 2:30:40 PM |
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