Input Interruption; To I50 ) - With Delay Function; Allocation Of Pointers To Input Numbers (Input Signal On/Off Duration); Input Interruption Delay Function - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
10.4 Input Interruption (I00
The PLC (main unit) is provided with an input interruption function (input delay interruption function) and has
six interruption input points.
The ON or OFF duration of interruption input signals should be 5µs or more.

10.4.1 Allocation of pointers to input numbers (input signal ON/OFF duration)

Input No.
Interruption on
leading edge
X000
X001
X002
X003
X004
X005

10.4.2 Input interruption delay function

This input interruption has a function to delay execution of interruption routine in 1ms units.
With this delay function, the position of the sensor used for input interruption can be adjusted in the sequence
program. It is necessary to adjust the actual position of the sensor.

10.4.3 Cautions for input interruption

1. Non-overlap of of input numbers
The input terminals X000 to X007 can be used for high-speed counter, input interruption, pulse catch, SPD,
ZRN, DSZR and DVIT instructions and general-purpose inputs.
Take care not to overlap the input numbers.
Example:
When the input interrupt pointer "I001" is used, X000 is occupied. Therefore, it is impossible to use C235,
C241, C244, C246, C247, C249, C252 and C254, input interruption (including delay interruption) pointer I000,
pulse catch contact M8170 and SPD, ZRN, DSZR and DVIT instructions at the same time.
2. Cautions in wiring
• The wiring length should be 5m or less.
• Connect a bleeder resistance of 1.5kΩ (1 W or more) to the input terminal, so that the sum of the load
current of the open collector transistor output on the other side device and the input current of the main
body is 20 mA or more.
- Source input: PNP open collector transistor
- Sink input: NPN open collector transistor
PLC
(sink input)

to I50 ) - With Delay Function

→ For details on programming, refer to the programming manual.
Interrupt pointer
Interruption on
trailing edge
I001 I000
I101 I100
I201 I200
I301 I300
I401 I400
I501 I500
Bleeder
24V
resistance
2-wire
S/S
Rb proximity
I sensor
X
0V
10 Input Wiring Procedures (Input Interruption and Pulse Catch)
10.4 Input Interruption (I00
Interrupt disable ON or OFF duration of input
control
M8050
M8051
M8052
M8053
M8054
M8055
→ For the programming, refer to the programming manual.
0V
S/S
PLC
X
(source input)
24V
to I50 ) - With Delay Function
signal
5µs or more
Bleeder
resistance
2-wire
Rb proximity
I sensor
1
2
3
4
5
6
7
8
9
10
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