Appendix
A.1 Tags of the technology object SpeedAxis
S7-1500 Motion Control V13 Update 3
324
Function Manual, 07/2014, A5E03879256-AC
A.1.6
DynamicLimits tags (speed axis)
The tag structure <TO>.DynamicLimits.<tag name> contains the configuration of the
dynamic limits. During Motion Control, no dynamic values greater than the dynamic limits are
permitted. If you have specified greater values in a Motion Control instruction, then motion is
performed using the dynamic limits, and a warning is indicated (alarm 501 to 503 - Dynamic
values were limited).
Tags
Tag
Data type Values
W
Description
DynamicLimits.
STRUCT
MaxVelocity
LREAL
0.0 to 1.0E12
RES Maximum permissible velocity of the axis
MaxAcceleration
LREAL
0.0 to 1.0E12
DIR Maximum permissible acceleration of the axis
MaxDeceleration
LREAL
0.0 to 1.0E12
DIR Maximum permissible deceleration of the axis
MaxJerk
LREAL
0.0 to 1.0E12
DIR Maximum permissible jerk on the axis
A.1.7
DynamicDefaults tags (speed axis)
The tag structure <TO>.DynamicDefaults.<tag name> contains the configuration of the
dynamic defaults. These settings will be used, if you specify a dynamic value less than 0.0 in
a Motion Control instruction (exceptions: MC_MoveJog.Velocity, MC_MoveVelocity.Velocity).
Changes to the dynamic defaults will be applied with the next rising edge at the "Execute"
parameter of a Motion Control instruction.
Tags
Tag
Data type Values
W
Description
DynamicDefaults.
STRUCT
Velocity
LREAL
0.0 to 1.0E12
DIR Default velocity
Acceleration
LREAL
0.0 to 1.0E12
DIR Default acceleration
Deceleration
LREAL
0.0 to 1.0E12
DIR Default deceleration
Jerk
LREAL
0.0 to 1.0E12
DIR Default jerk
EmergencyDeceleration LREAL
0.0 to 1.0E12
DIR Emergency stop deceleration