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
345
A.2.17
FollowingError tags (positioning axis/synchronous axis)
The tag structure <TO>.FollowingError.<tag name> contains the configuration for following
error monitoring.
If the permissible following error is exceeded, then technology alarm 521 is output, and the
technology object is disabled (alarm reaction: remove enable).
When the warning level is reached, a warning is output (technology alarm 522).
Tags
Tag
Data type Values
W
Description
FollowingError.
STRUCT
EnableMonitoring
BOOL
-
RES FALSE: Following error monitoring disabled
TRUE: Following error monitoring enabled
MinValue
LREAL
L:
0.0 to
1.0E12
R:
0.001 to
1.0E12
DIR Permissible following error at velocities below the value of
"MinVelocity".
MaxValue
LREAL
L:
0.0 to
1.0E12
R:
0.002 to
1.0E12
DIR Maximum permissible following error, which may be
reached at the maximum velocity.
MinVelocity
LREAL
0.0 to
1.0E12
DIR "MinValue" is permissible below this velocity, and is held
constant.
WarningLevel
LREAL
0.0 to
100.0
DIR Warning level:
Percentage value relative to the valid maximum following
error.
See also