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Installation manual
CNC 8060
CNC 8065
5.
CNC-PLC COMMUNICATION.
(REF: 1402)
Transferring auxiliary functions -M-, -H-, -S-.
5.4.2 Non-synchronized transfer.
This type of transfer takes place with the H function and with the M functions set without
synchronization.
Transferring -M- functions
1 The CNC indicates in registers MFUN1 to MFUN7 of the channel the M functions
programmed in the block and it activates the MSTROBE mark so the PLC executes them.
2 The CNC keeps the MSTROBE mark active for a time period indicated by parameter
MINAENDW.
3 After this time, the CNC goes on executing the program regardless of the time required
by the PLC to execute that function.
Transferring -H- functions
1 The CNC indicates in registers HFUN1 to HFUN7 of the channel the H functions
programmed in the block and it activates the HSTROBE mark so the PLC executes them.
2 The CNC keeps the HSTROBE mark active for a time period indicated by parameter
MINAENDW.
3 After this time, the CNC goes on executing the program regardless of the time required
by the PLC to execute that function.
Considerations for transferring these functions.
The value of parameter MINAENDW should be the same or longer than the PLC program
execution period parameter PRGFREQ in order to ensure that the PLC detects that signal.
When sending non-synchronized H or M functions corresponding to consecutive blocks of
the same program, the CNC waits between blocks for a time period indicated by MINANEDW
so the PLC can read all the functions.
PLC
1 2 3
MINAENDW
SSTROBE
MSTROBE
EXECUTION
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