Mitsubishi Electronics FX3G User Manual

583

/FX

3GC

/FX

3UC

Series

Programming Manual - Basic & Applied Instruction Edition

22 External Device – FNC170 to FNC179

22.3 FNC176 – RD3A / Read form Dedicated Analog Block

FNC160

-F

NC1
69

eal
T

ime C

lock

ontrol

FNC17

0-F

NC
179

xternal D

evice

FNC

180

Alternate

Instructions

C181-

FNC18

thers

FNC190

-F

NC1
99

k D
ata

Op
er

ation

FNC20

0-F

NC209

har

r S

trin

Con
tro

FNC2
10-
FNC21

Dat
a

Operati

on 3

FNC220

-F

NC2
49

omp
ari

son

FNC25

0-F

269

ata T

abl
e

Operation

FNC2

70-
FNC276

-Dev

ice

22.3

FNC176 – RD3A / Read form Dedicated Analog Block

Outline

This instruction reads an analog input value from the analog block FX

-3A

or FX

-2AD.

1. Instruction format

2. Set data

3. Applicable devices

Explanation of function and operation

1. 16-bit operation (RD3A)

: Special block number

/FX

3GC

/FX

3UC

(D, DS, DSS)

PLCs : K0 to K7

3UC

-32MT-LT(-2) : K1 to K7 (K0 indicates the built-in CC-Link/LT master.)

: Analog input channel number

-3A

: K1 (ch 1) or K2 (ch 2)

-2AD : K21 (ch 1) or K22 (ch 2)

: Read data

A value read from the analog block is stored.
FX

-3A

: 0 to 255 (8 bits)

-2AD : 0 to 4095 (12 bits)

*1.

The FX

-3A is available only for the FX

and FX

3UC

PLCs.

Operand Type

Description

Data Type

Special block number

- FX

/FX

3GC

/FX

3UC

(D, DS, DSS) PLCs: K0 to K7

- FX

3UC

-32MT-LT(-2) : K1 to K7

16-bit binary

Analog input channel number

16-bit binary

Word device storing the read data

16-bit binary

Oper-

and

Type

Bit Devices

Word Devices

Others

System User

Digit Specification

System User

Special

Unit

Index

Con-
stant

Real

Number

Charac-

ter String

Pointer

X Y M T C S D .b KnX KnY KnM KnS T C D R U \G

V Z Modify K H

" "

FNC 176

RD3A

Mnemonic

Operation Condition

16-bit Instruction

7 steps

RD3A
RD3AP

Mnemonic

Operation Condition

Continuous

Operation
Pulse (Single)

Operation

32-bit Instruction

−

FNC176

RD3A

Command

input