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Chapter 5 Positioning Instructions
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• The instruction only sets the item of the operation data, and the basic parameter items related to
the operation such as the bias speed and speed limit are fixed in the positioning basic parameters.
• If you use the DST instruction, the operation pattern is fixed as End operation, and the operation
method is fixed as the single operation. But if continued operation or repeated operation is needed,
use indirect starting (IST instruction).
(b) Error
• If the value designated as ax (instruction axis) is other than 0 and 1, the error flag (F110) is set
and the instruction is not executed.
• This case if an error of execution of the instruction, so the error of positioning area K flag (axis
X:K4201, axis Y: K4301) does not turn On.
(2) Example of Use of the Instruction
• Direct starting instruction is described with the example of the following program.
• The example of use of the DST instruction is described on the basis of axis X.
(a) Example of the Program
(b) Device Used
Device Description Data size Example of setting
M0000
axis X origin return
instruction signal
BIT -
M0001
axis X direct starting
instruction signal
BIT -
K4200
signal during axis X
operation
BIT -
K4201 axis X error BIT -
D0000 Target position DINT 100,000
D0002 Target speed DWORD 30,000
D0004 Dwell time WORD 100
D0005 M code number WORD 123
D0006 Control word WORD H’20
※
※ H`
20 : Bit5~6 : 1 (No.2 acceleration/deceleration pattern), Bit 4 : 0 (absolute coordinates),
Bit0 : 0(position control)