Siemens SINUMERIK 840C Installation Instructions Manual page 616

8 PLC Machine Data (PLC MD)
8.5 PLC MD for the operating system (system bits)
PLC MD
DB63
DW No.
6052
DL 26
6053
DR 26
Default value:
An EU interface module's eight interrupt inputs can be enabled separately.
Bit = 0
Bit = 1
Also see PLC MD 30.
PLC MD
DB63
DW No.
6055
DR 27
6056
DL 28
Default value:
A signal change at an EU IM interrupt input triggers the interrupt that invokes OB 2 (enable via
PLC MD 6052). The signal edge (i.e. positive or negative edge) that is to trigger the interrupt
can be specified separately for each interrupt input.
Bit = 0
Bit = 1
The system program checks the machine data for the interrupt-generating I/Os for validity on
cold restart. The PLC issues an error message and goes to STOP when illegal machine data
are encountered. Also see PLC MD 30.
PLC MD
DB63
DW No.
6061
DR 30
Default value:
8–24
More user manuals on
7 6 5
Enable central interrupt byte IF PLC/PLC 135 WD
7 6 5
7 6 5
0
Input is disabled
Input is enabled for OB 2 call
7 6 5
Edge central interrupt byte IF PLC/PLC 135 WD
7 6 5
7 6 5
0
Positive edge triggers interrupt
Negative edge triggers interrupt
7 6 5
All bits default to 0
ManualsBase.com
Bit No.
4 3 2
4 3 2
Reserved
4 3 2
Bit No.
4 3 2
4 3 2
Reserved
4 3 2
Bit No.
4 3 2
© Siemens AG 1992 All Rights Reserved
09.95
1 0
1 0
1 0
1 0
1 0
1 0
1 0
6FC5197- AA50
SINUMERIK 840C (IA)