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11 POSITIONING INSTRUCTION
11.1 Positioning Instruction
DDVIT [For the FX5 Series operand specification]
This instruction executes interrupt 1-speed constant quantity feed.
■Descriptions, ranges, and data types
■Applicable devices
*1 T, ST, C cannot be used.
This instruction executes interrupt 1-speed constant quantity feed.
• For (s1), specify the transfer distance that is output after an interrupt, in user units. (The distance must be within the range
of -2147483647 to +2147483647 number of pulses.)
• For (s2), specify the speed in user units. (The speed must be 200 Kpps or lower in frequency.)
• For (d1), specify the axis number from which pulses are output.
• For (d2), specify the bit device of the normal complete flag or abnormal end flag for the DDVIT instruction.
For details on the function and error code, refer to Built-in positioning manual.
Two devices are occupied from the device specified in (d2). Make sure that these devices are not used in other controls.
For other precautions, refer to Built-in positioning manual.
Ladder diagram Structured text
ENO:=DDVIT(EN,s1,s2,d1,d2);
Operand Description Range Data type Data type (label)
(s1) Positioning address after an interrupt input -2147483648 to +2147483647 32-bit signed binary ANY32
(s2) Command speed 1 to 2147483647 32-bit signed binary ANY32
(d1) Specify the axis number from which pulses are to be output K1 to 4 16-bit signed binary ANY_ELEMENTARY
(d2) Bit device number of the positioning complete flag or
abnormal end flag
Bit ANY_BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s1)
(s2)
(d1)
(d2)
*1
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