Fnc 62 - Absd / Absolute Drum Sequencer - Mitsubishi Electric MELSEC FX3U Programming Manual

Melsec fx series programmable logic controllers

Table of Contents

Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

FNC 62 - ABSD / Absolute Drum Sequencer

This instruction creates many output patterns corresponding to the current value of a counter.

1. Instruction format

1: "D .b" is available only in FX

2: This function is supported only in FX

Explanation of function and operation

1. 16-bit operation (ABSD)

In this example, outputs are controlled to ON or OFF by one rotation (0 to 360° using the rotation angle signal

of 1°/pulse).

The current value

(which occupies "n" lines × 2 devices), and consecutive "n" outputs starting from

OFF during one rotation.

Rotation angle signal of 1°/pulse

16-bit Instruction

Head device number storing the data table (with rising and faling point data)

Counter number for monitoring the current value compared with the data table

Head bit device number to be output

Number of lines in the table and the number of output bit devices

[1 ≤ n ≤ 64]

of the counter is compared with the data table with "n" lines starting from

14 Handy Instruction - FNC 60 to FNC 69

14.3 FNC 62 - ABSD / Absolute Drum Sequencer

Operation Condition

32-bit Instruction

17 steps DABSD

PLCs. However, index modifiers (V and Z) are not available.

16-bit binary

are controlled to ON or

Table of Contents

Melsec fx3uc Melsec fx3g