Siemens SINUMERIK 840D sl Function Manual page 380

Data Description
8.4 System variables
Table 8-10 Overview of system variables
$A_CMDSI 10x change timer timeout value
for long forced checking proce-
dure pulses and/or single–channel
test stop logic
$A_LEVELSID Crosswise data comparison stack
level display: Number of signals
for which NCK and PLC detect
different signal levels
$A_XFAULTSI Bit 0=1:
In a crosswise data comparison
between NCK and drive of any
particular safety axis, an actual
value error was detected.
Bit 1=1:
In the crosswise data comparison
between NCK and drive of any
axis, an error was detected and
the delay time until STOP B is ini-
tiated for this axis is either running
or has already expired.
$VA_XFAULTSI[axi Bit 0=1:
s] The crosswise data comparison
for this axis between NCK and
drive has detected an actual value
error
Bit 1=1:
In the crosswise data comparison
between NCK and the drive of this
axis, an error was detected and
the delay time until STOP B is ini-
tiated in this axis is either running
or has already expired.
$VA_STOPSI[axis] Current Safety Integrated stop of
the relevant axis
–1:
0:
1:
2:
3:
4:
5:
10:
11:
$A_STOPESI Current Safety Integrated STOP E
for any axis
0:
otherwise: For one of the axes,
$A_PLCSIIN[1...32] Single–channel direct commu-
nication between NCK and PLC–
SPL. Signals can be written by
the PLC and read by the NCK.
$A_PLCSI- Single–channel direct commu-
OUT[1...32] nication between NCK and PLC–
SPL. Signals can be read by the
PLC, written and read by the
NCK.
8-380
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Bit 0 = 1
10x time active
0...320
[0,3]
[0,3]
[–1,11]
No stop
Stop A
Stop B
Stop C
Stop D
Stop E
Stop F
Test stop
Test, external pulse
cancellation
[0,MAX_INT]
No stop
a Stop E is present
[FALSE,
TRUE]
[FALSE,
TRUE]
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BOOL x x x
INT x x
INT x x
INT x x
INT x x
INT x x
BOOL x x
BOOL x x
© Siemens AG 2008 All Rights Reserved
05.08
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