354
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High Speed Processing – FNC 50 to FNC 59
13.8 FNC 57 – PLSY / Pulse Y Output
6. Others
1) Types of pulse output instructions, positioning instructions and relevant instruction and their target output
numbers
2) When using the same output relay (Y000 or Y001) by several instructions.
While a pulse output monitor (BUSY/READY) flag is ON, a pulse output instruction and positioning
instruction for the same output relay cannot be executed.
While a pulse output monitor flag is ON even after the instruction drive contact is set to OFF, do not
execute a pulse output instruction or positioning instruction for the same output relay.
For driving such an instruction, wait until the pulse output monitor flag turns OFF and one operation cycle
or longer period passes after that, and then execute such an instruction again.
3) "frequency control mode" in which DHSZ (FNC 55) and PLSY (FNC 57) instructions are combined can be
used only once in a program.
Program example (when outputting pulses without any limitation)
When
is set to K0, pulses are output without any limitation.
Classification
Instruction
Instruction name
Target output numbers
Pulse output
PLSY(FNC 57)
Pulse Y output
Y000,Y001
PLSR(FNC 59)
Acceleration/deceleration setup
Y000,Y001
Positioning
DSZR(FNC150)
Dog search zero return
Y000,Y001,Y002,Y003
DVIT(FNC151)
Interrupt positioning
Y000,Y001,Y002,Y003
ZRN(FNC156)
Zero return
Y000,Y001,Y002,Y003
PLSV(FNC157)
Variable speed pulse output
Y000,Y001,Y002,Y003
DRVI(FNC158)
Drive to increment
Y000,Y001,Y002,Y003
DRVA(FNC159)
Drive to absolute
Y000,Y001,Y002,Y003
High speed
processing
PWM(FNC 58)
Pulse width modulation
Y000,Y001,Y002,Y003
Pulse output destination device
Pulse output monitor flag
Y000
M8340
Y001
M8350
S
2
FNC 57
DPLSY
K1000
K0
Y000
Command
input
No limitation (K0)
1000Hz
Y000