FW used by Step7 S5 conversion FC81 to 84

Hello Babycan;

S7 programs do not ue the S5 standard functions for math operations.Step 7 has its own intructions that can be used directly in the S7 program.

Look up these instructions in the LAD manual for s7-300/400:

MUL_16 (in Step 5) can be replaced by MUL_I (in Step 7)

DIV_16 by DIV_I

COD by I_BCD

https://support.industry.siemens.com/cs/ww/en/view/45523822

Instead of converting these functiosn from S5, delete them in the S5 program and replace them by the corresponding instructions in S7.

Hope this helps,

Daniel Chartier