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1-9GFK-0804B Chapter 1 Programming for the Micro PLC
Programming Examples
Two simple programming examples are shown below.
Example #1:
For an analog input, the program might read the input value and turn on a discrete
output when the analog input reaches a specific value. In this example, the program
compares the value of the first analog input (IR1) with a value stored in register R4. If
the analog input is greater than that value, then a discrete output (O18) is turned on.
[IR1 > R4]
O18
The output that is turned on might represent an actual output device such as a switch, or
a logical output that is used elsewhere in the program.
Example #2:
The logic below might be used for an analog output.
[R3 ! OR1]
In this example, each program scan, the Move function copies the content of register R3
to reference OR1, which is the reference used by the analog output.