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390
FX
3G
/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
13.8
FNC 57 – PLSY / Pulse Y Output
Outline
This instruction generates a pulse signal.
→
For the frequency control mode, refer to Subsection 13.6.3.
1. Instruction format
2. Set data
3. Applicable devices
S
1: Specify a transistor output on the main unit or Y000 or Y001 on a special high speed output adapter
*1
.
S
2: This function is supported only in FX
3U
/FX
3UC
PLCs.
*1. High-speed output special adapters can be connected only to FX
3U
PLC.
Explanation of function and operation
1. 16-bit operation (PLSY)
A pulse train of frequency
is output in the quantity
from the output (Y)
.
• Specify the frequency in
.
Allowable setting range: 1 to 32767 (Hz)
• Specify the generated pulse quantity in
.
Allowable setting range: 1 to 32767 (PLS)
• Specify the output (Y) number from which pulses are to be output in
.
Allowable setting range: Y000, Y001
Operand Type
Description
Data Type
Output pulse frequency
16- or 32-bit binary
Number of output pulses
16- or 32-bit binary
Device number (Y) from which pulses are output
Bit
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System
User
Special
Unit
Index
Constant
Real
Number
Charac-
ter String
Pointer
X
Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modify K
H
E
"
"
P
3
3
3
3
3 3 3 3
S
2
3 3
3
3
3
3
3
3
3
3 3 3 3
S
2
3 3
3
3
3
S
1
3
FNC 57
PLSY
D
Mnemonic
Operation Condition
32-bit Instruction
13 steps DPLSY
Continuous
Operation
7 steps PLSY
Continuous
Operation
16-bit Instruction
Mnemonic
Operation Condition
S
1
S
2
D
S
1
S
2
D
S
1
S
2
D
S
1
S
2
FNC 57
PLSY
Pulse quantity
Frequency
S
1
D
S
2
D
Command
input
S
1
S
2
D