1548 HEIDENHAIN Technical Manual MANUALplus 620
8.6 M Functions (M Strobe)
In the control you can program miscellaneous functions, also known as
M functions. The code of an M function is transferred to the PLC before or
after execution of the NC block.
Certain M functions are reserved for the NC or have fixed meanings for the
NC. The other M functions are freely available and are evaluated by the PLC.
The structure of the M Functions menu in the DIN/ISO mode of the
smart.Turn Programming mode can be adapted to the available M functions.
M functions are channel-sensitive. M functions are configured in two steps:
In the channel-sensitive parameter MP_mStrobes, you define a key name
for each M function used in this machining channel. In this way, you assign
the M functions to this machining channel.
In the parameter object System/PLC/CfgPlcMStrobe, you configure the
M function.
8.6.1 Assigning M functions to the machining channels
MP_mStrobes
M strobe descriptions of this machining channel
Format: Array [0...99]
Input: Key name of the M strobes used in this machining channel
Default: –
Access: LEVEL3
Reaction: RESET
In the marker defined in MP_unitOfMeasure, the PLC is informed of the unit
of measure used in the NC program when M, S, T or alias strobes are
executed.
MP_unitOfMeasure
Symbolic name or number of the PLC marker for the unit of
measure of the NC program
Format: String
Input: Name of the PLC marker, which informs the PLC of the unit of
measure of the NC program to be run.
PLC marker = 1: Inches
PLC marker = 0: Metric system
Default: Value optional
Access: LEVEL3
Reaction: RESET
Settings in the configuration editor MP number
Channel
ChannelSettings
[Key name of the channel]
CfgPlcStrobes
mStrobes
unitOfMeasure
201601
201605
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