Siemens SINUMERIK 840C User Manual
Page 611
09.95
8 PLC Machine Data (PLC MD)
8.5 PLC MD for the operating system (system bits)
6040
DL 20
DR 9
DL 9
DR 8
DL 8
DR7
DL 7
DR 6
DL 6
6041
DR 20
DR 11
DL 11
DR 10
DL 10
PLC MD
DB63
DW No.
Bit No.
7
6
5
4
3
2
1
0
Signal channel DB
Signal channel DB
Default value:
All bits default to 0
Bit = 0
The system software does not evaluate the bits in the corresponding interface
byte for operational messages.
Bit = 1
The system software evaluates the bits in the corresponding interface byte for
operational messages.
Notes:
1) The bit applies to all NC channels.
2) If the same bit is also set for error messages (PLC MD 6032, 6033), the PLC goes into the
Stop loop.
Sample application:
DB 10 D 6.8
1 signal operational message 6000;
PLC MD 6040.0=
1
See PLC Installation Section.
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
8–19
SINUMERIK 840C (IA)