1654 HEIDENHAIN Technical Manual MANUALplus 620
8.13 Data Transfer NC => PLC, PLC => NC
8.13.1 Introduction
Functions that are to be executed by the PLC are transferred from the NC to
the PLC. The job (M, G or T function), the job parameter and the
acknowledgment by the PLC are transmitted in strobes.
M functions: Jobs from the NC to the PLC and acknowledgment by the PLC
are transmitted in M strobes (see "M Functions (M Strobe)" on page 1548).
Special G functions that are executed by the PLC must be configured
correspondingly. This configuration is described below. Jobs from the NC to
the PLC and acknowledgment by the PLC are transmitted in M strobes (see
"M Functions (M Strobe)" on page 1548).
T functions are executed by the PLC. Jobs from the NC to the PLC and
acknowledgment by the PLC are transmitted in strobes (see "T Functions (T
Strobe)" on page 1574).
S functions are executed by the NC. However, an S strobe must be defined.
To do so, define a dummy S strobe in the parameter object CfgPlcSStrobe
(see "S Function (S Strobe)" on page 1560).
8.13.2 Data transfer NC program => PLC
Settings in the configuration editor MP
number
System
PLC
CfgPlcMStrobe: 1548
[Key name of M strobe]
CfgPlcStrobeAlias
[Key name of alias strobe]
type: GFUNCTION
mCode: 1000
mOffset: TRUE
NCchannel
ChannelSettings
[Key name of the machining channel]
CfgPlcStrobes
mStrobes
aliasStrobes
104201
104202
104203
201601
201604
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