December 2001 Display and Operation 6 – 283
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77
7 In the PLC, evaluate the M functions which have no fixed meaning for the
NC.
When an M function is transferred to the PLC, the code of the M function is
saved in W260 and the strobe marker M4072 is set:
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7 Set M4092 in order to report the execution of the M function. The next NC
block is run. M4072 is reset by the NC.
The M functions M00 to M99 can also be transferred decoded to the markers
M1900 to M1999:
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7 Activate this function with M4571.
Note
M functions greater than 99 are not transferred to the PLC. They have a
fixed meaning for the NC to activate certain functions.
Set Reset
W260 Code for M functions NC NC
M4072 Strobe signal for M functions NC NC
M4092 Acknowledgment of M functions PLC PLC
M4571 Activation of decoded M-code
transfer in M1900 to M1999
PLC PLC
M1900 -
M1999
Decoded M function if M4571 is set NC NC
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