6 Before Starting Positioning Operation
6.3 System Wiring
33
FX3U-1PG User's Manual
1
Introduction
2
Specification
3
System
Configuration
4
Installation
5
Wiring
6
Before Starting
Positioning
Operation
7
Buffer Memory
8
Manual Control
9
Positioning
Control
10
Program
Example
6.3.3 Interrupt input via PLC (BFM)
In the interrupt 1-speed positioning operation, the interrupt stop operation, the interrupt 2-speed positioning
operation, and the external command positioning operation, interrupt input (INT0, INT1) via PLC (BFM) can
be used.
When interrupt input via PLC (BFM) is used, select a terminal to be used for the interrupt input in the interrupt
input setting BFM#3 (b3, b2), BFM#37 (b3, b2) and turn on operation command II BFM#57 (b1, b0) by the
PLC input.
Interrupt input setting [BFM#3 (b3, b2), BFM#37 (b3, b2)]
Point
Interrupt input via PLC (BFM) will be used for INT0 and INT1.
The DOG terminal and STOP terminal of the FX
3U-1PG are used for DOG and STOP.
Operation command ΙΙ (BFM#57)
Point
Connect and link an arbitrary input of the PLC (X000, X001, etc.) to the INT0 (b0), INT1 (b1) of the operation
command II (BFM#57).
Response time
Response time of INT0, INT1 is as follows.
• During operation at 1 kHz or higher: within 3 ms
• During operation at less than 1 kHz: within 3 pulses
Caution of interrupt input is used
When both INT0 and INT1 are set to ON at the same time in the external command positioning or interrupt 2-
speed positioning, INT0 is effective.
BFM#3 or BFM#37
Interrupt input 0 Interrupt input 1 Content
b3 b2
00 DOG STOP
The DOG terminal is used for interrupt input 0.
The STOP terminal is used for interrupt input 1.
01 DOG INT1
The DOG terminal is used for the interrupt input 0.
Interrupt input 1 (INT1) via PLC is used for interrupt input 1.
10 INT0 STOP
Interrupt input 0 (INT0) via PLC is used for interrupt input 0.
The STOP terminal is used for interrupt input 1.
11 INT0 INT1
Interrupt input 0 (INT0) via PLC is used for interrupt input 0.
Interrupt input 1 (INT1) via PLC is used for interrupt input 1.
BFM No. Item Content
#57
b0 INT0
The interrupt input is executed via the PLC (BFM).
The INT0 turns to ON when b0 = ON.
b1 INT1
The interrupt input is executed via the PLC (BFM).
The INT1 turns to ON when b1 = ON.
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