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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
4 Before Programming
4.7 Items To Be Observed in Programming
B - 71
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
*1. Y002 (pulse output destination) cannot be specified when the 14-point or 24-point type FX3G PLC is
connected.
*2. Y003 can be specified as the pulse output destination only if two FX
3U-2HSY-ADP adapters are
connected to the FX
3U PLC.
Use with PLSY (FNC57) and PLSR (FNC59) instructions:
Along with the positioning instructions (FNC150 - FNC159), the pulse output instructions (FNC57 and FNC59)
require hardware for outputting pulses.
• Do not use the same output number for both a positioning instruction (FNC150 - FNC159) and a pulse
output instruction (FNC57 or FNC59).
• The use of a positioning instruction together with a PLSY or PLSR instruction will complicate the operation
of the register that controls the number of output pulses (see the following table). For this reason, it is
recommended that a positioning instruction should be used in place of the PLSY or PLSR instruction.
→ For details on the related devices, refer to Section 4.1 to Section 4.4.
*1. Y002 (pulse output destination) cannot be specified when the 14-point or 24-point type FX
3G PLC is
connected.
*2. Y003 can be specified as the pulse output destination only if two FX
3U-2HSY-ADP adapters are
connected to the FX
3U PLC.
• If it is necessary to use a positioning instruction (FNC150 to FNC159) together with a pulse output
instruction (FNC57 or FNC59), use the following positioning instruction in place of the pulse output
instruction:
- FNC57(PLSY), FNC59(PLSR)→FNC158(DRVI)
Pulse output
destination device
Current value register
For FNC150 - FNC159 instructions For FNC57 and FNC59 instructions
Y000 D8341,D8340 D8141,D8140
Y001 D8351,D8350 D8143,D8142
Y002
*1
D8361,D8360 -
Y003
*2
D8371,D8370 -