System Variables - Siemens SINUMERIK 840D sl Function Manual

Data Description

8.4 System variables

8.4 System variables
8.4.1 System variable for SINUMERIK 840D sl
System variables
Table 8-10 Overview of system variables
System variables Description
Actual position
$VA_IS[axis] Safe actual position for Safety In-
tegrated
$AA_IM[axis] Actual position of the closed–loop
control
$VA_IM[axis] Encoder actual value in the ma-
chine coordinate system
Internal inputs/outputs
$A_INSI[n] NCK input
$A_INSID[n] NCK inputs
$A_INSIP[n] Image, PLC input
$A_INSIPD[n] Image of the PLC – SPL inputs
from the drive monitoring channel
$A_OUTSI[n] NCK output
$A_OUTSID[n] NCK outputs
$A_OUTSIP[n] Image, PLC output
$A_OUTSIPD[n] Image of the PLC – SPL outputs
from the drive monitoring channel
External inputs/outputs
$A_INSE[n] NCK input
$A_INSED[n] NCK inputs
8-378
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Value range Data
type
Axis identifier
DOUBLE
GEOAX
CHANAX
MACHAX
SPINDLE
Axis identifier
DOUBLE
GEOAX
CHANAX
MACHAX
SPINDLE
Axis identifier
DOUBLE
GEOAX
CHANAX
MACHAX
SPINDLE
n = 1, 2, ... 64 BOOL
stand for the
No. of the input
n = 1, 2 INT
n = 1,2, ...64 BOOL
n = 1, 2 INT
n = 1, 2, ... 64 BOOL
stand for the
No. of the out-
put
n = 1, 2 INT
n = 1, 2, ... 64 BOOL
n = 1, 2 INT
n = 1, 2, ... 64 BOOL
stands for the
No. of the input
1)
1)
n = 1, 2 INT
© Siemens AG 2008 All Rights Reserved
05.08
Possible access for
Part program Synchronized
action
r w r w
x x
x x
x x
x x
x x
x x
x x
x x x x
x x x x
x x
x x
x x
x x