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Chapter 4. PLC Program
13) STEP or STEP+
(1) Definition
The X/Y axis +direction absolute position movement(STEP or STEP+) application command
executes a +direction absolute position movement function by a designated velocity,
completes the execution of +direction absolute position movement by starting a command
via a rise edge input, and outputs the completion of execution.
--- An absolute position value can be designated by using a P variable or L variable.
--- For a velocity designation value, you can use an F variable or L variable.
--- When using an L variable as an absolute position designation value, the designated
address is used as an X axis position value, and the next address is used as a Y
axis position value.
The output is turned ON after completing the execution of a STEP application command,
and is reset(OFF) during movement by another movement command.
(2) Sequence and timing chart
LOAD X0.0
STEP P0 F0
/*STEP+ P0 F0
OUT Y0.0
X0.0
STEP
REQ OUT
X0.0 Y0.0
2000
Y0.0
P0
POS
VELF0
CUR-Y
POSITION
?
P0_X
1234
P0_Y(5678)
F0
2000
POSITION MOVE
CURRENT
VELOCITY
?
?
P0_Y
5678
CUR-X
POSITION
? P0_X(1234)POSITION MOVE ?
Example of use: -- STEP P0 F0 or STEP+ P0 F0 -- STEP L0 F0 or STEP+ L0 F0
-- STEP P0 L10 or STEP+ P0 L10 -- STEP L0 L10 or STEP+ L0 L10
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