Mitsubishi Electric FX3G SERIES Programming Manual page 813

Programmable controllers

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Table of Contents

Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

-Timing chart

X010: Preparation

for measurement

SW(X000,X001)

value of T246

2. Example of program to measure the short pulse width using a high-speed ring counter (only in

When the rising edge of

X000 is detected

When the falling edge of

X001 is detected

I001(Interrupt processing)

Part A in the previous page

D8099 is set to ON

36 Interrupt Function and Pulse Catch Function

36.3 Input Interrupt (Interrupt Triggered by External Signal) [Without Delay Function]

I100(Interrupt processing)

Part B in the previous page

Interrupts are enabled by the EI instruction.

The main program is described.

The ring counter is set to ON.

When X000 turns ON: The ring counter is reset

Measurement data

When X001 turns OFF: The ring counter value

is completed

The special data register M8099 up-counts the

0.1 ms clock from the next operation cycle after

being driven.

When the count value exceeds "32767", it is

returned to "0".

measurement is started.

is transferred to D0,

and measurement is

Fx3u series Fx3uc series