09.95 8 PLC Machine Data (PLC MD)
8.5 PLC MD for the operating system (system bits)
6044
DL 22
DR 4 DL 4 DR 3 DL 3 DR 2 DL 2 DR 1 DL 1
6045
DR 22
DR 8 DL 8 DR 7 DL 7 DR 6 DL 6 DR 5 DL 5
6046
DL 23
DR 12 DL 12 DR 11 DL 11 DR 10 DL 10 DR 9 DL 9
6047
DR 23
DL 16 DR 15 DL 15 DR 14 DL 14 DR 13 DL 13
PLC MD
DB63
DW No.
Bit No.
76543210
Signal DB 58
Signal DB 58
Signal DB 58
Signal DB 58
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.
Note:
If the same bit is also set for error messages (PLC MD 6036 to 6039), the PLC goes into the
Stop loop.
Sample application:
DB 58 D 5.1 1 signal operational message 9073;
PLC MD 6045.1 = 1
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 8–21
SINUMERIK 840C (IA)