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G1 Introduction to AC500 1-86 AC500 / Issued: 07.2006
Symbolic names for I/Os
In our example we use one digital input and one digital output. We want to label them with symbolic
names. Proceed as follows: Click on the
symbol in front of "DC532" in order to display the I/O
configuration:
Now define a symbolic name for the digital input (digital input 0) as follows. First click on the
symbol in
front of "Digital Inputs 0-15[FIX]":
In the line of input 0, click twice on "AT". Then enter the symbolic name, e.g. I0dig.
Complete your input by pressing the <Enter> key (displayed entry: I0dig AT %IX0.0 …). Now the
program can access this input by its symbolic name. Using the same procedure, we then have to label
the digital output with a symbolic name. Click on the
symbol in front of the entry "Digital In/Outputs -
outputs 16-31 [FIX]".
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