Siemens SINUMERIK 840C - Page 612

8 PLC Machine Data (PLC MD) 09.95
8.5 PLC MD for the operating system (system bits)
6042
DL 21
DR k+3 DL k+3
PLC MD
DB63
DW No.
Bit No.
76543210
Signal DB 31
Default value: All bits default to 0
K = 0, 4, 8, 12, 16, 20 (1st to 6th spindle)
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 spindles.
2) If the same bit is also set for error messages (PLC MD 6034), the PLC goes into the Stop
loop.
Sample application:
DB 31 D 7.1 1 signal operational message 8029;
PLC MD 6042.1= 1
See PLC Installation Section.
6043
DR 21
DR k+3 DL k+3
PLC MD
DB63
DW No.
Bit No.
76543210
Signal DB 32
Default value: All bits default to 0
K = 0, 4, 8, 12, ... 116 (1st to 30th axis)
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 axes.
2) If the same bit is also set for error messages (PLC MD 6035), the PLC goes into the Stop
loop.
Sample application:
DB 31 D 7.1 1 signal operational message 8029;
PLC MD 6042.1= 1
See PLC Installation Section.
8–20
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SINUMERIK 840C (IA)