Appendix
A.2 Tags of the positioning axis/synchronous axis technology object
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
347
A.2.19
StandstillSignal tags (positioning axis/synchronous axis)
The tag structure <TO>.StandstillSignal.<tag name> contains the configuration for the
standstill signal.
If the actual velocity value is below the velocity threshold, and does not exceed it during the
minimum dwell time, then the standstill signal <TO>.StatusWord.X7 (Standstill) is set.
Tags
Tag
Data type Values
W
Description
StandstillSignal.
STRUCT
Configuration for the standstill signal
VelocityThreshold
LREAL
0.0 to 1.0E12
DIR Velocity threshold
If velocity is below this threshold, then the minimum
dwell time begins.
MinDwellTime
LREAL
0.0 to 1.0E12
DIR Minimum dwell time
See also
Evaluating the technology data block (Page 173)
A.2.20
StatusPositioning tags (positioning axis/synchronous axis)
The tag structure <TO>.StatusPositioning.<tag name> indicates the status of a positioning
motion.
Tags
Tag
Data type Values
W
Description
StatusPositioning.
STRUCT
Distance
LREAL
-
RON Distance to the target position
TargetPosition
LREAL
-
RON Target position
FollowingError
LREAL
-
RON Current following error
See also