Mitsubishi MELSEC-A AJ71PT3 User manual

User's

Manual

a~-------------------

•

Master

type

MELSECNET/MINI

•MITSUBISHI

;"ELECTRIC

•

CONTENTS

1. INTRODUCTION ··· ····..·..·..··..··1-1

-1-4

1.1

MINILinkFeatures·

· ·..·..·..·..· ·..·..·..·..· ·..· ·

·1-2

1.2 Function Block Diagram ··· ·..·..

····1-4

2. SYSTEM CONFIGURATION 2-1 - 2-9

2.1 Overall Configuration ·..

·········

··2-1

2.2 Applicable A-Series System· ·..·..·..····

··········

········

··········

·..·..·..·.. 2-3

2.3 System Configuration Example 2-4

2.4

Equipment

Used

with

the

MINI Link 2-5

2.5 Noteson Configuring

the

System 2-7

3. SPECIFICATIONS 3-1 - 3-21 •

3.1 General Specifications·..·..·..···..·..····..·····..·.... ····..···..·..

·········

..· ·..····..··3-1

3.2 Performance Specifications·..······..······....

·········

..·....

·········

..·..···..·..···..· ·..·..·..·..·3-2

3.2.1 Performance

specifications·················

..·..·..······..······..· ·....

·······

·..····..·· 3-2

3.2.2 Optical

fiber

cable specifications·..··..·..

·······

..··..

·······

..· ····..·..·· 3-4

3.2.3 Twisted

pair

cable specifications 3-5

3.3 1/0 List

for

the

PCCPU ·..· · · 3-6

3.4 Buffer

Memory·

......····..·..· ······..···· ······..·..·..······ ·..·..········..

·······

·..·..·..·· 3-9

3.4.1 Buffer

memory

assignment

3-9

3.4.2 Buffer

memory

and data location..· · ·..·..·..· · ·..·..· · ·..· 3-10

3.4.3 Buffer

memory

assignment

and

the

number

stations occupied·..· ·.. 3-17

3.5 1/0

Refresh·······

···········

..·.... ······..·..·.... ·..·.... ·..·.... ····.... ····..

··············

..···..······..· 3-18

3.5.1 Relation between PCCPU operating status and 1/0 refresh 3-18

3.5.2 1/0 refresh at occurrence

communication

error

·..· · · · 3-19

3.5.3 1/0 delay

time

in remote 1/0 stations ·

·3-20

4. PRE-OPERATION SETTING

AND

PROCEDURE 4-1 - 4-14

4.1 Master

Module

Handling Instructions 4-1

4.2 Pre-Operation Setting and Procedure 4-2

4.3 MasterStation Nomenclature and Settings ·..·..· · ·..· · · · 4-3

4.3.1 Master

module

nomenclature ·..·..· · ·..·..· ·..· ·..·..

·4-3

4.3.2

Mode

setting

switch···

..·..·..····..·..··..

·······

..·..

···········

..·..

··············

..······..···..

··4-4

4.3.3

Monitor

station

number

setting switch · · ·..· ·..·..

·4-5

4.4 Setting

the

Remote 1/0 Station

Numbers

· ·..·..·..· · ·..· 4-6

4.5

Wiring

4-8

4.5.1 Handling instructions

for

optical

fiber

and

twisted

pair

cables 4-8

4.5.2 Connection

optical

fiber

cables · · · · · ·..·..

·4-8

4.5.3 Connection

oftwisted

pair

cables 4-10

4.5.4 Connection

units

for

both optical and

twisted

pair data links 4-11

4.6

TestMode·········

·······

..····..

········

············

················

..····..········..······..·..······..

·4-12

4.6.1 Line check

mode

..·..· 4-12

4.6.2

Luminous

energy check

mode

· · · · · · · 4-14

•

18(NA) 66164·A

•

PROGRAMMING···························································································5-1

- 5-16

5.1

Programming

Procedure..·..···..·· ·..·..· ····..·..· ·..·..·..·..· ·· ·· ·..·..·..···5-1

5.2

Writing

the Initial Data 5-2

5.3

Programming

for

Batch Refresh Type Remote 1/0 Units 5-3

5.3.1 Buffer

memory

for

batch refresh 5-3

5.3.2 Reading the

input

data 5-4

5.3.3

Writing

the

output

data 5-5

5.4

Programming

for

Partial Refresh Type 1/0 Units· · · · · 5-6

5.4.1 Buffer

memory

for

partial refresh station 5-6

5.4.2 Setting

the

partial refresh stations 5-9

5.4.3 Reading

the

input

data 5-11

5.4.4

Writing

the

output

data 5-12

5.5 Program Example ·..·..

··5-13

6. TROUBLESHOOTING ·6-1 - 6-10

6.1 Data Communication Errors 6-1

6.1.1 Data

communication

continue

error

· · · · ·

6-1

6.1.2 Data

communication

stop

error

6-2

6.2 Troubleshooting 6-3

6.2.1 General

troubleshooting

flowchart

6-3

6.2.2 Master

module

RUN LED

off

6-4

6.2.3 Master

module

RDISDLED

off"

6-5

6.2.4 Remote 1/0 staion RDISDLED

off

6-6

6.2.5

Input

fault

..··..·..·..·..·..· ·..·..· · ·..·..· ·..··..·..· ·..· 6-7

6.2.6

Output

fault

·..·..·..· ·..·..· ·..·..·..·..· ·· ·..···..·..·..·· 6-9

APPENDiCES············································ APP-l - APP-7

Appendix

1. Optical ConnectorManufacturing

Method

· · APP-l

Appendix

2. Communication Data

Assignment

Sheets APP-4

Appendix

3. Dimensions APP-7

JB(NA) 66164-A

•

INTRODUCTION

SYSTEM

CONFIGURATION

SPECIFICATIONS

PRE-OPERATION

SETTING

AND

PROCEDURE

PROGRAMMING

TROUBLESHOOTING

APPENDICES

INTRODUCTION

1. INTRODUCTION

This manual includes specifications, handling instructions and

programming

procedures

for

the AJ71PT32 data link

module

(referred to as

"master

module")

for

use as

the

master station

MELSECNET/MINI data link system (referred to as

"MINI

link").

The AJ71PT32 is a master

unit

used

for

both optical and

twisted

pair data links. The AJ71PT32 and AJ71P32IT32 have

the

same

functions

and are

compatible

with

each other.

The 1/0 specifications

MINI link

remote

1/0 stations are given in

the

MELSECNET/MINI Remote 1/0 User's Manual.

The general CPU names used in

this

manual include the

following

CPU

models:

(1) PC CPU

A1(El. A2(El. A3(E)CPU(P21/R21)

A1N, A2N, A3NCPU(P21/R21)

A3HCPU(P21/R21)

AOJ2CPU(P23/R23)

(2) Building block

type

CPU

A1(E), A2(El. A3(E)CPU(P21/R21)

A1N, A2N, A3NCPU(P21/R21)

A3HCPU(P21/R21)

(3) Compact

type

CPU

AOJ2CPU(P23/R23)

POINT I

this

manual,

the

1/0

addresses

the

master

module

assume

that

the

master

module

is loaded on

slot

the

main

base

unit

used

with

the

building

block

type

CPU.

the

master

module

is loaded on

any

other

slot

is used

with

the

AOJ2CPU,

its

1/0

addresses

should

determined

in accordance

with

the

CPU

module

1/0

address assign-

ment.

1-1

•

IB (NA) 66164-A

REVISIONS

*The

manual

number

is given on the

bottom

left of the back cover.

Print Date £lManual

Number

Revision

Dec., 1988 16 (NA) 66164-A First edition

INTRODUCTION

Thank

you

for

choosing

the

Mitsubishi MELSEC-A Series of General Purpose Programmable

Controllers. Please read

this

manual carefully so

that

the

equipment

is used to its

optimum.

Acopy

this

manual should be

forwarded

to the end User.

•

IBINA)66164-A

•

INTRODUCTION

1.1 MINI Link Features

IMELSEC;4

The MINI

link

is a

remote

1/0 system

which

uses

the

master

module

the

main

extension base unit.

This

system is designed

reduce

wiring

work

costs

for

1/0

devices installed

away

from

the

PC CPU.

For example,

remote

1/0 stations installed

conveyor

line,

machines and

equipment,

etc. can be

controlled

from

the

master

module

via optical

fiberltwisted

pair

cables.

(1) Max. 512 link

points

One

master

module

allows

remote

1/0

stations

connected and up

512

inputsloutputs

controlled.

The

number

master

modules

loaded is

not

limited.

(2) Fast 1/0 refresh

The I/O refresh

time

between

the

master

and

remote

1/0

stations is between 3.2 and 3.9ms

for

512 points.

(3) 1/0 refresh system

Abatch

apartial refresh system is available in accordance

with

the

remote

1/0

unit

used.

(a) Batch refresh

Remote 1/0 station data is transferred by one 1/0 refresh. 8

input

output

points

can be

controlled

by a

remote

1/0

unit

which

occupies 1station.

(b) Partial refresh

Remote 1/0 station data is transferred by several 1/0

refreshes.

This

system

allows

many

1/0

points

controlled

by a

few

occupied stations, e.g. 64

input

and 64

output

points

can be

controlled

the

AJ35PTF-128DT

which

occupies 4stations.

(4) Remote 1/0

unit

types

The

following

remote

1/0

units

and

module

are available:

(a) Stand-alone

remote

1/0

unit

Has a

high-strength,

drip-proof

casing made

aluminum

diecast

for

installation

onto

machine

and

may

be used as

arelay box.

Its protective structure

conforms

IP54G (JEM1030).

(b)

Compact

remote

1/0

unit

Same in style as

the

AOJ2 1/0 units.

Models

available are

32-point

dedicated

input,

24-point dedicated

output,

16-

point

input/12-point

output

and

32-point

input/24-point

output

compound

units.

type

remote

1/0

unit

Refreshes

remote

1/0 station data in

groups

given

points.

Allows

many

I/O

points

controlled

with

few

stations

occupied by

the

master

module.

(d) AJ72PT35 link

module

Allows

the

Aseries

building

block

type

1/0

modules

used in

the

MINI link system.

1-2

•

18(NAI66164-A

INTRODUCTION

IMELSEC;4

(5) The MINI

link

may

be used

with

the

MELSECNET system.

Any

the

tier

two

master station and

the

tier

three

master station

and local stations in

the

MELSECNET

may

be used as

the

master station in

the

MINI link.

(6) Ease

machining

optical cable connectors

Optical cable connectors can be machined easily by the user

with

the

tool

kit available

from

Mitsubishi.

(7) Ease

checking

luminous

energy in optical data link system

luminous

energy check

mode

the

master

module,

luminous

energy can be checked by connecting the optical

power

tester

the

receive connector

each remote I/O

station.

REMARKS

The

MINI linkdoes not have a loopbackfunction as it has only one loop of data link

cables.

1-3

•

IS (NA) 66164-A

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