Mitsubishi Electric MELSEC FX3U Programming Manual page 621

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
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.
Timing clock output destination device
4) When the command input is set to ON, the operation is started. The timing clock output destination
device
D
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
n1/n2 status
n1 = 0, n2 ≥ 0
n1 > 0, n2 = 0
Related devices
Device
M8330 Timing clock output 1
M8331 Timing clock output 2
M8332 Timing clock output 3
M8333 Timing clock output 4
M8334 Timing clock output 5
Counted number of scans for
D8330
timing clock output 1
Counted number of scans for
D8331
timing clock output 2
Counted number of scans for
D8332
timing clock output 3
Counted number of scans for
D8333
timing clock output 4
Counted number of scans for
D8334
timing clock output 5
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
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 M8334 is set to
D
D
M8330
M8331
M8332
M8333
M8334
is set to ON or OFF by END instruction.
ON/OFF status
D
D Fixed to OFF
Fixed to ON
D
Name
Timing clock output in DUTY (FNC186) instruction
Counted number of scans for timing clock output 1 in DUTY (FNC186)
instruction
Counted number of scans for timing clock output 2 in DUTY (FNC186)
instruction
Counted number of scans for timing clock output 3 in DUTY (FNC186)
instruction
Counted number of scans for timing clock output 4 in DUTY (FNC186)
instruction
Counted number of scans for timing clock output 5 in DUTY (FNC186)
instruction
24.3 FNC186 – DUTY / Timing Pulse Generation
.
Scan counting device
D8330
D8331
D8332
D8333
D8334
is set to the following status:
D
Description
(error code: K6705)
D
24 Others – FNC181 to FNC189
for two or more
D
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