574
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
24 Others – FNC181 to FNC189
24.3 FNC186 – DUTY / Timing Pulse Generation
3) The counted number of scans is stored in either one among D8330 to D8334 in accordance with the
timing clock output destination device
.
The counted number of scans stored in either one among D8330 to D8334 is reset when the counted
value reaches "n1+n2" or when the command input (instruction) is set to ON.
4) When the command input is set to ON, the operation is started. The timing clock output destination
device
is set to ON or OFF by END instruction.
Even if the command input is set to OFF, the operation is not stopped.
In the STOP mode, the operation is suspended. When the power of the PLC is turned OFF, the operation
is stopped.
5) When "n1" and "n2" are set to "0", the device
is set to the following status:
Related devices
Caution
• DUTY (FNC186) instruction can be used up to 5 times (points).
It is not permitted, however, to use the same timing clock output destination device
for two or more
DUTY (FNC186) instructions.
Errors
An operation error is caused in the following cases; The error flag M8067 turns ON, and the error code is
stored in D8067.
• When "n1" and/or "n2" is less than "0" (error code: K6706)
• When any device other than M8330 to M834 is set to
(error code: K6705)
Timing clock output destination device
Scan counting device
M8330
D8330
M8331
D8331
M8332
D8332
M8333
D8333
M8334
D8334
n1/n2 status
ON/OFF status
n1 = 0, n2
≥
0
Fixed to OFF
n1 > 0, n2 = 0
Fixed to ON
Device
Name
Description
M8330
Timing clock output 1
Timing clock output in DUTY (FNC186) instruction
M8331
Timing clock output 2
M8332
Timing clock output 3
M8333
Timing clock output 4
M8334
Timing clock output 5
D8330
Counted number of scans for
timing clock output 1
Counted number of scans for timing clock output 1 in DUTY (FNC186)
instruction
D8331
Counted number of scans for
timing clock output 2
Counted number of scans for timing clock output 2 in DUTY (FNC186)
instruction
D8332
Counted number of scans for
timing clock output 3
Counted number of scans for timing clock output 3 in DUTY (FNC186)
instruction
D8333
Counted number of scans for
timing clock output 4
Counted number of scans for timing clock output 4 in DUTY (FNC186)
instruction
D8334
Counted number of scans for
timing clock output 5
Counted number of scans for timing clock output 5 in DUTY (FNC186)
instruction
D
D
D
D
D
D
D
D
D
