Siemens SINUMERIK 840D Description Of Functions page 255

11.03
4.3 Interface signals
General The safety-relevant input and output signals (SGEs and SGAs) are signals that
are sent to and received from the system via two channels:
•
•
4.3.1 Interface signals for SINUMERIK 840D
Table 4-3 Interface signals for 840D
DB 31... Signals to/from drive
Byte Bit 7 Bit 6
...
...
...
22 Reserved Reserved
23 Test stop Reserved
Selection:
32 Reserved Reserved
33 SG override selection
Bit 3
...
...
...
108 Axis safely Reserved
referenced
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Via the NCK monitoring channel
<--> NCK I/O devices <--> signal processing <-->
Via the drive monitoring channel
<--> PLC I/O devices <--> signal processing via PLC <-->
Note
The SGEs/SGAs in the drive monitoring channel are mapped in an area of
the NC/PLC interface (signals to/from drive) and must be supplied in the PLC
user program.
As a result of the two-channel structure of Safety Integrated, the machine
manufacturer must supply the SGEs and SGAs in both the NCK monitoring
channel and the drive monitoring channel.
Unused SGEs must be set to a defined state.
Bit 5 Bit 4
Reserved SG selection
Bit 1
Reserved SE-
Selection
SGE (signals to drive)
De- De-
selection selection
ext. ext.
STOP_E STOP_D
Bit 2 Bit 1 Bit 0
Reserved Reserved
NCK SGE/SGA interface <-> NCK-CPU
NC/PLC interface <-->drive CPU
Bit 3 Bit 2 Bit 1
...
...
...
Reserved
Bit 0
selection
Reserved Gear ratio selection
Bit 2
De- De- Reserved
selection selection
ext. ext.
STOP_C STOP_A
Reserved Reserved Reserved
...
...
...
Reserved "Pulses Reserved
cancelled"
status
4 Data Descriptions
4.3 Interface signals
Bit 0
SBH- SBH/SG-
De- De-
selection
Bit 1 Bit 0
Reserved
Reserved
SBH/ SG
active
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