Auxiliary Function Output To The Plc - Siemens SINUMERIK 840D sl Function Manual

Program code
N50 M100 M200
M17
Without a traverse movement, auxiliary functions are always output to the PLC immediately.
1)
The following figure shows the time sequence of the part program. Please note the time
difference during the processing of parts program blocks N20 and N30.
8.9

Auxiliary function output to the PLC

Function
On output of an auxiliary function to the PLC, the following signals and values are transferred
to the NC/PLC interface:
● Change signals
● "Address extension" parameter
● "Value" parameter
Data areas in the NC/PLC interface
The change signals and values of the auxiliary functions are within the following data areas in
the NC/PLC interface:
● Change signals for auxiliary function transfer from NC channel:
DB21, ... DBB58 - DBB67
● Transferred M and S functions:
DB21, ... DBB68 - DBB112
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
H2: Auxiliary function outputs to PLC
8.9 Auxiliary function output to the PLC
Comment
; Output of M200: immediate 1)
; Output of M100: immediate 1)
; Acknowledgment: slow
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