Mitsubishi FX3U Series Programming Manual

337
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
13 High-Speed Processing – FNC 50 to FNC 59
13.2 FNC 51 – REFF / Refresh and Filter Adjust
11
FNC30-FNC39 Rotation and Shift
12
FNC40-FNC49 Data Operation
13
FNC50-FNC59 High-Speed Processing
14
FMC60-FNC69 Handy Instruction
15
FNC70-FNC79 External FX I/O Device
16
FNC80-FNC89 External FX Device
17
FNC100-FNC109 Data Transfer 2
18
FNC110-FNC139 Floating Point
19
FNC140-FNC149 Data Operation 2
20
FNC150-FNC159 Positioning Control
Cautions
1. Setting the filter time "n"
Set "n" within the range from K0 (H0) to K60 (H3C) [0 to 60 ms].
2. Function of the input filter
A digital filter is built into the inputs X000 to X017
*1
. The filter time can be changed in 1 ms units within the range from
0 to 60 ms using applied instructions. When the filter time is set to "0", the input filter value is as follows.
*1. X000 to X007 in the FX3U-16M, FX3UC-16M.
*2. When setting the input filter time to "5 µs", perform the following actions:
- Make sure that the wiring length is 5 m or less.
- Connect a bleeder resistor of 1.5 kΩ (1 W or more) to the input terminal, and make sure that the load
current in the open collector transistor output of the external equipment is 20 mA or more including the
input current of the main unit.
*3. The filter time is fixed to 10 ms in X010 to X017 when the FX3U-16M, FX3UC-16M is used.
Program example
1. Relationship between the program and the filter time
*4. X000 to X007 in the FX3U-16M, FX3UC-16M.
Input number Input filter value when set to "0"
X000 to X005
5 µs*
2
X006, X007 50 µs
X010 to X017
*3
200 µs
*3
n
X001
X000
END
When X010 is ON
The image memory of X000 to
X017
*4
is refreshed with an input
filter of 1 ms.
The image memory of X000 to X017
*4
is
refreshed with an input filter of 20 ms.
The image memory is refreshed with
the input filter value set in D8020.
Input
processing
Set value of D8020
(Initial value: 10 ms)
1 ms
20ms
Sequence
program
REFF instruction
REFF instruction
END
Output
processing
X010
X000
M8000
FNC 51
REFF
K 1
FNC 51
REFF
K 20

Mitsubishi FX3U Series Specifications

General

Model	FX3U Series
Program Memory	64k steps
Execution Speed	0.065 μs/basic instruction
Type	PLC (Programmable Logic Controller)
Power Supply	100-240V AC
I/O Points	Up to 384
Communication	USB
Expansion	Supported via expansion modules
High-Speed Counters	Up to 6 channels
Analog Input/Output	Available via expansion modules
Temperature Range	0 to 55°C
Programming Language	Ladder Logic, Structured Text
Built-in Functions	PID control
Humidity	5 to 95% (non-condensing)