Programming - Siemens SINUMERIK 840D sl Function Manual

Measurement (M5)
8.5 Axial measurement (optional)
8.5.3

Programming

Programming
Axial measurement can be programmed with and without deletion of distance-to-go.
MEASA: With deletion of distance-to-go
MEAWA: Without deletion of distance-to-go
MEASA[axis] = (mode, trigger event1, trigger event2, trigger event3, trigger event4)
Parameter description:
● Axis: Channel axis name (X, Y, ...)
● Mode:
● Trigger event
674
– Units decade
0 = abort measurement job (e.g., for synchronized actions)
1 = up to 4 different trigger events can be activated concurrently
2 = up to 4 trigger events can be activated successively
Error output if the first trigger event is already present
3 = up to 4 trigger events can be activated successively
NO error output if the first trigger event is already present, alarms 21700/21703 are
suppressed
– Decade (= encoder selection)
0/not set = use active measuring system
1 = 1st measuring system
2 = 2nd measuring system (if available. Otherwise the first measuring system is used;
no alarm is generated)
3 = 1st and 2nd measuring system
If two measuring systems are used to take the measurement, a maximum of two trigger
events may be programmed. The measured values of both encoders are recorded for
each of the two trigger events.
1 = rising edge of probe 1
-1 = falling edge of probe 1
2 = rising edge of probe 2
-2 = falling edge of probe 2
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions