16-499
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
840Di Specific Data and Functions
16.1
Interface signals
For detailed information on interface signals, please refer to the descriptions of functions:
S
/FB1/
Description of Functions – Basic Machine
S
/FB2/
Description of Functions – Extended Functions
S
/FB3/
Description of Functions – Special Functions
S
/FBSY/ Description of Functions – Synchronized Actions
For a complete list of all existing interface signals, please refer to:
S
/LIS/
Lists, Section: Interface signals
16.1.1
840Di-specific interface signals
DB number
Byte, bit
Name
Doc. Ref-
erence
Signals from NC to PLC
10
108.2
MMC ready, communication via MPI
10
108.3
MMC ready, communication via shared memory communication
10
109.4
PC OS fault
10
57.3
PC shutdown
16.1.2
Interface signals not supported
DB number
Byte, bit
Name
Doc. Ref-
erence
Axis/spindle-specific
Signals from PLC to axis/spindle
31, ...
20.0
Ramp-function switch U/F mode
31, ...
20.2
Torque limit 2
Safety Integrated signals from PLC to axis/spindle
31, ...
22.0
Deselection of safe velocity and safe operational stop (SBH/SG de-
selection)
31, ...
22.1
Deselection of safe operational stop (SBH deselection)
31, ...
22.3
Velocity limit – bit value 0 (SG selection)
31, ...
22.4
Velocity limit – bit value 1
31, ...
23.0–23.2
Ratio selection – bit value 0 through bit value 2
31, ...
23.5
Enable limit position pair 2
31, ...
23.7
Enable test stop
Signals from axis/spindle to PLC
31, ...
92.0
Setup mode active
31, ...
92.2
Torque limit 2 active
Safety Integrated signals from axis/spindle to PLC
16
