Mc_Changedynamic - Siemens SIMATIC S7-1200 Manual

10.11

MC_ChangeDynamic

Table 10- 24 MC_ChangeDynamic instruction
LAD / FBD
STEP 7 automatically creates the DB when you insert the instruction.
1
In the SCL example, "MC_ChangeDynamic_DB" is the name of the instance DB.
2
Table 10- 25 Parameters for the MC_ChangeDynamic instruction
Parameter and type
Axis
Execute
ChangeRampUp
RampUpTime
ChangeRampDown
RampDownTime
ChangeEmergency
EmergencyRampTime
Easy Book
Manual, 11/2011, A5E02486774-04
SCL
"MC_ChangeDynamic_DB"(
Execute:=_bool_in_,
ChangeRampUp:=_bool_in_,
RampUpTime:=_real_in_,
ChangeRampDown:=_bool_in_,
RampDownTime:=_real_in_,
ChangeEmergency:=_bool_in_,
EmergencyRampTime:=_real_in_,
ChangeJerkTime:=_bool_in_,
JerkTime:=_real_in_,
Done=>_bool_out_,
Error=>_bool_out_,
ErrorID=>_word_out_,
ErrorInfo=>_word_out_);
Data type
IN TO_Axis_1
IN Bool
IN Bool
IN Real
IN Bool
IN Real
IN Bool
IN Real
Description
Axis technology object
Start execution on rising edge. Inital value: FALSE
TRUE = Change Ramp up time to the value specified by
parameter RampUp Time. Inital value: FALSE
Time (in seconds) without jerk limitation to accelerate from
standstill to the configured maximum speed. Inital value: 5.00
You can see the status affected variable in the value of
<Axisname>. Config.DynamicDefaults.Acceleration.
TRUE Change the release time according to the input parameter
RampDownTime. Inital value: FALSE
Time (in seconds) without jerk limitation to slow to a standstill
from the configured maximum speed. Inital value: 5.00
You can see the status of the affected variable in the value of
<Axisname>. Config.DynamicDefaults.Deceleration .
TRUE Change emergency stop time corresponding to the input
parameter EmergencyRampTime. Inital value: FALSE
Time (in seconds) without jerk limitation for the emergency stop
mode delay to go from the configured maximum speed to a
standstill. Inital value: 2.00
Status of the affected variable stored in: <Axisname>.
Config.DynamicDefaults.EmergencyDeceleration
Motion control is easy
10.11 MC_ChangeDynamic
Description
Changes the dynamic settings of
a motion control axis.:
Value for acceleration change

Value for delay change

Value for emergency stop-

delay change
Jerk limitation activate /

deactivate
Value for jerk limitation

change
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