Mc_Power Instruction - Siemens SIMATIC S7-1200 Manual
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10.2 MC_Power instruction
You also configure the homing behavior (passive and active).
Use the "Commissioning" control panel to test the functionality independently from your user
program.
The control panel shows the current status of the axis. Not only can you enable and disable
the axis, but you can also test the positioning of the axis (both in absolute and relative terms)
and can specify the velocity, acceleration and deceleration. You can also test the homing
and jogging tasks. The control panel also allows you to acknowledge errors.
10.2
MC_Power instruction
NOTICE
If the axis is switched off due to an error, it will be enabled again automatically after the
error has been eliminated and acknowledged. This requires that the Enable input
parameter has retained the value TRUE during this process.
Table 10- 4
MC_Power instruction
LAD / FBD
STEP 7 automatically creates the DB when you insert the instruction.
1
In the SCL example, "MC_Power_DB" is the name of the instance DB.
2
194
Click the "Startup" icon to commission the axis.
SCL
"MC_Power_DB"(
Axis:=_multi_fb_in_,
Enable:=_bool_in_,
StopMode:=_int_in_,
Status=>_bool_out_,
Busy=>_bool_out_,
Error=>_bool_out_,
ErrorID=>_word_out_,
ErrorInfo=>_word_out_);
Description
The MC_Power motion control instruction enables
or disables an axis. Before you can enable or
disable the axis, ensure the following conditions:
The technology object has been configured
correctly.
There is no pending enable-inhibiting error.
The execution of MC_Power cannot be aborted by
a motion control task. Disabling the axis (input
parameter Enable = FALSE ) aborts all motion
control tasks for the associated technology object.
Manual, 11/2011, A5E02486774-04
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