Siemens S7-1200 - Mc_Movevelocity (Move Axis at Predefined Velocity) Instruction

Technology instructions
9.3 Motion control
S7-1200 Programmable controller
468 System Manual, 03/2014, A5E02486680-AG
Override response
The
MC_MoveRelative task can be aborted
by the following motion control tasks:
•
MC_Home Mode = 3
•
MC_Halt
•
MC_MoveAbsolute
•
MC_MoveRelative
•
MC_MoveVelocity
•
MC_MoveJog
The new MC_MoveRelative task aborts the
following active motion control tasks:
•
MC_Home Mode = 3
•
MC_Halt
•
MC_MoveAbsolute
•
MC_MoveRelative
•
MC_MoveVelocity
•
MC_MoveJog
9.3.5.8
MC_MoveVelocity (Move axis at predefined velocity) instruction
Table 9- 41 MC_MoveVelocity instruction
LAD / FBD
SCL
Description
"MC_MoveVelocity_DB"(
Axis:=_multi_fb_in_,
Execute:=_bool_in_,
Velocity:=_real_in_,
Direction:=_int_in_,
Current:=_bool_in_,
InVelocity=>_bool_out_,
Busy=>_bool_out_,
CommandAborted=>_bool_out_,
Error=>_bool_out_,
ErrorID=>_word_out_,
ErrorInfo=>_word_out_);
Use the MC_MoveVelocity
instruction to move the axis
constantly at the specified velocity.
In order to use the
MC_MoveVelocity instruction, the
axis must first be enabled.
1
STEP 7 automatically creates the DB when you insert the instruction.
2
In the SCL example, "MC_MoveVelocity_DB " is the name of the instance DB.