326
(4) Download program into PLC, run PLC and set M0.
(5) From Free Monitor in the toolbar, we can see that D2 changes to be 30, it means
assignment is successful;
8-6 Program Example
If PLC needs to do complicated calculation (including plus and minus calculation), the
calculation will be used for many times, C language function is easy to use.
Example 1:
Calculation a= b/c + b*c+(c-3)*d
Method 1: use ladder chart:
Get the result of c-3
Get the result of three multiplication equations
Get the sum
Ladder chart only support two original operands, it needs many steps to get the result.
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