Mitsubishi Electric Melsec-F FX3GC Series User Manual page 124

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
Use with PLSY (FNC 57) and PLSR (FNC 59) instructions:
Along with the positioning instructions (FNC150 - FNC159), the pulse output instructions (FNC 57 and FNC
59) require hardware for outputting pulses.
• Do not use the same output number for both a positioning instruction (FNC150 - FNC159) and a pulse
output instruction (FNC 57 or FNC 59).
• 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.
Pulse output
destination device
Y000
Y001
Y002
Y003
*1. Y002 is not available in FX
*2. Y003 is available only when two high-speed output special adapters are connected to the FX
• If it is necessary to use a positioning instruction (FNC150 to FNC159) together with a pulse output
instruction (FNC 57 or FNC 59), use the following positioning instruction in place of the pulse output
instruction:
- FNC 57(PLSY), FNC 59(PLSR)FNC158(DRVI)
B - 80
PLC User's Manual - Positioning Control Edition
 For details on the related devices, refer to Section 4.1 to Section 4.4.
For FNC150 - FNC159 instructions
D8341,D8340
D8351,D8350
*1
D8361,D8360
*2
D8371,D8370
PLC (14-point and 24-point type) and FX
3G
4.7 Items To Be Observed in Programming
Current value register
For FNC 57 and FNC 59 instructions
D8141,D8140
D8143,D8142
/FX
3S
4 Before Programming
-
-
PLC.
3GC
PLC.
3U