Action Instructions - Fagor CNC 8060 Installation Manual

I n s t a l l a t i o n m a n u a l .
4.4

Action instructions.

Action instructions allow changing the status of PLC resources and CNC-PLC
communication marks depending on the result of the logic expression.
Logic expression = Action instruction
There may be several action instructions associated with a single logic expression. All the
action instructions must be preceded by the "=" sign.
All the action instructions admit a prior NOT that inverts the result of the expression for that
action.
I2 = O3 = NOT M100 = NOT TG1 2 100 = CPR 1 100
Output O3 will show the status of input I2.
Mark M100 will show the negated state of input I2.
A down-flank at input I2 will activate the trigger input TG1 of timer T2.
An up-flank at I2 will preset counter C1 with a value of 100.
The action instructions are divided into:
• Assignment binary action instructions.
• Conditional binary action instructions.
• Sequence breaking action instructions.
• Arithmetic action instructions.
• Logic action instructions.
• Specific action instructions.
Action instructions may change the status of all the PLC resources except for the physical
inputs being used. When seeing the field "I 1/1024", one must understand that only the status
of the unused inputs may be changed.
For example, if physical inputs I1 through I32 are used, only inputs I33 through I1024 may
be changed.
4.
CNC 8060
CNC 8065
(R : 1709)
EF
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