Siemens SINUMERIK 840D sl Function Manual page 334

Data Description
8.4 System variables
Bit 0 set
Bit 1 set
System variable $VA_STOPSI
Axial system variable that contains the present stop. For a value of 2, a Stop E is
active for this axis.
System variable $A_STOPESI
Global system variable that with a value not equal to 0 indicates that a Stop E is
active for one particular axis.
System variables $A_INSI[1...64]
The status signals of the NCK monitoring channel can be used in the NCK-SPL
using these system variables. Each of the system variables $A_INSI[1...64] can be
assigned any safety-related output signal or the AND logic operation of several
signals using axial MD $MA_SAFE_xxx_OUTPUT. These system variables can
only be read by the user program.
Parameterizing example:
– $MA_SAFE_CAM_PLUS_OUTPUT[0] = 04010101H
=> the SGA "SN1+" can be evaluated in the SPL using the system variable
$A_INSI[1].
Programming example:
; Copying an SGA from the internal SPL interface into the external
SPL interface
N1010 IDS = 01 DO $A_OUTSE[1] = $A_INSI[1]
These system variables can only be read by the user program.
System variable $A_INSE[1...64]
The system variables $A_INSE contain the input circuit of the NCK-SPL.
8-334
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
In the crosswise data comparison between NCK and drive an ac-
tual value error was detected.
In the crosswise data comparison between NCK and drive – an
error was detected and the delay time – up until a STOP B
($MA_SAFE_STOP_SWITCH_TIME_F) is initiated – is either
running or has expired.
© Siemens AG, 2006. All rights reserved
03.06