Siemens SINUMERIK 840D sl Function Manual page 384

Data Description
8.4 System variables
System variables $A_INSED[1,2]
Image of the safety input signals (external NCK interface).
System variables $A_INSID[1,2]
The status signals of the NCK monitoring channel can be evaluated in the NCK–
SPL in a double–word–serial fashion using this system variable:
$A_INSID[1] corresponds to $A_INSI[1...32]
$A_INSID[2] corresponds to $A_INSI[33...64]
These system variables can only be read by the user program.
System variables $A_OUTSE[1...64]
The system variables $A_OUTSE contain the outputs of the NCK–SPL.
System variables $A_OUTSI[1...64]
The control signals of the NCK monitoring channel can be addressed from the
NCK–SPL using these system variables. Each of the system variables
$A_OUTSI[1...64] can be simultaneously assigned any one or several safety–re-
lated input signals by using the axial MD $MA_SAFE_xxx_INPUT.
Parameterizing example:
– $MA_SAFE_VELO_SELECT_INPUT[0] = 04010204H
=> The SGE "SG selection, bit 0" is controlled in the SPL using the system vari-
able $A_OUTSI[36].
Programming example:
; SGA "cam 1+" (refer above) controls the SG selection
;
N1020 IDS = 02 DO $A_OUTSI[36] = $A_INSI[1]
These system variables can be read by the user program and written into by
SAFE.SPF.
System variables $A_OUTSID[1,2]
The control signals of the NCK monitoring channel can be addressed in the NCK–
SPL in a double–word–serial fashion using these system variables:
$A_OUTSID[1] corresponds to $A_OUTSI[1...32]
$A_OUTSID[2] corresponds to $A_OUTSI[33...64]
These system variables can be read by the user program and written into by
SAFE.SPF.
8-384
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
© Siemens AG 2008 All Rights Reserved
05.08