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Installation manual
CNC 8055
CNC 8055i
7.
CONCEPTS
SOFT: V02.2X
Treatment of emergency signals
These emergency signals are the physical output /EMERGENCY OUTPUT (output O1 of the PLC)
and the general logic output /EMERGEN" which is mark M5000 of the PLC.
It must be borne in mind that every time a new PLC program cycle is initiated, the real inputs are
updated with the physical inputs. Therefore, input I1 will have the value of the physical input
/EMERGENCY STOP.
Also, before executing the PLC program cycle, the values of the M and R resources corresponding
to the CNC logic outputs (internal variables) are updated as well as mark M5507 corresponding to
the /ALARM signal.
After the execution of each cycle, the PLC updates the physical outputs with the values of the real
outputs except the physical output /EMERGENCY OUTPUT which will be activated whenever the
real output O1 or mark M5507 (/ALARM signal coming from the CNC) is active.
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