FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
8 1-Speed Positioning - DRVI/DRVA Instruction
8.3 Drive To Absolute - DRVA Instruction
B - 120
2. Special data registers
The following table shows the related special data registers. Note that Y000, Y001, Y002, and Y003 are
devices that determine the pulse output destinations.
*1. Y002 is not available in 14-point and 24-point type FX3G PLC.
*2. Devices related to Y003 (pulse output destination) are only valid if two FX
3U-2HSY-ADP adapters are
connected to the FX
3U PLC.
Device number
Function
Data
length
Default
value
Refer to
Y000 Y001
Y002
*1
Y003
*2
D8340
Low-
order
D8350
Low-
order
D8360
Low-
order
D8370
Low-
order
Current value register
(PLS)
32-bit 0
Subsection
4.4.1
D8341
High-
order
D8351
High-
order
D8361
High-
order
D8371
High-
order
D8342 D8352 D8362 D8372 Bias speed (Hz) 16-bit 0
Subsection
4.2.6
D8343
Low-
order
D8353
Low-
order
D8363
Low-
order
D8373
Low-
order
Maximum speed (Hz) 32-bit 100,000
Subsection
4.2.5
D8344
High-
order
D8354
High-
order
D8364
High-
order
D8374
High-
order
D8345 D8355 D8365 D8375 Creep speed (Hz) 16-bit 1000
Subsection
4.2.4
D8346
Low-
order
D8356
Low-
order
D8366
Low-
order
D8376
Low-
order
Zero return speed (Hz) 32-bit 50,000
Subsection
4.2.3
D8347
High-
order
D8357
High-
order
D8367
High-
order
D8377
High-
order
D8348 D8358 D8368 D8378 Acceleration time (ms) 16-bit 100
Subsection
4.2.7
D8349 D8359 D8369 D8379 Deceleration time (ms) 16-bit 100
Subsection
4.2.8