Mitsubishi MELSEC-A series Manuale utente

MELSECNET/10

Network Module

User's Manual

(Hardware)

A1SJ71LP21GE

Thank you for buying the Mitsubishi general-purpose programmable

controller MELSEC-A Series

Prior to use, please read both this manual and detailed manual

thoroughly and familiarize yourself with the product.

MODEL A1SJ71LP21GE-U-E

MODEL

CODE 13J886

IB(NA)-66739-D(0706)MEE

zSAFETY PRECAUTIONS z

(Always read before starting use.)

Before using this product, please read this manual and the relevant manuals

introduced in this manual carefully and pay full attention to safety to handle the

product correctly.

The instructions given in this manual are concerned with this product. For the

safety instructions of the programmable controller system, please read the CPU

module user's manual.

In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".

Indicates that incorrect handling may cause hazardous

conditions, resulting in death or severe injury.

Indicates that incorrect handling may cause hazardous

conditions, resulting in medium or slight personal injury or

physical damage.

Note that the CAUTION level may lead to a serious consequence according

to the circumstances.

Always follow the instructions of both levels because they are important to

personal safety.

Please store this manual in a safe place and make it accessible when required.

Always forward it to the end user.

[INSTALLATION PRECAUTIONS]

CAUTION

zUse the programmable controller in an environment that meets the general

specifications contained in CPU module user’s manual. Using this

programmable controller in an environment outside the range of the general

specifications could result in electric shock, fire, erroneous operation, and

damage to or deterioration of the product.

zFully insert the projection on the bottom of the module into the hole in the

base unit, press the module into position, and tighten the module fixing

screws.

Not installing the module correctly or not fixing it with the screws could result

in malfunction, damage, or drop of some pieces of the product.

Always tighten the module fixing screws within the specified torque range.

Loose tightening could result in drop of some pieces of the product,

short-circuit, and malfunction.

Tightening the screws too much could result in drop of some pieces of the

product, short-circuit, or malfunction due to the breakage of a screw or the

module.

DANGER

CAUTION

[INSTALLATION PRECAUTIONS]

CAUTION

zDo not directly touch the printed circuit board, the conducting parts and electronic

parts of the module.

It may cause damage or erroneous operation.

zBefore handling the module, touch a grounded metal object to discharge the static

electricity from the human body. Failure to do so may cause malfunction or failure

of the module.

zCompletely turn off the externally supplied power used in the system before

mounting or removing the module.

Not doing so could result in damage to the product.

[WIRING PRECAUTIONS]

DANGER

zBefore wiring, be sure to shut off all phases of the external power supply used by the

system.

Failure to do so may cause electric shocks or damage the product.

CAUTION

zBe sure there are no foreign substances such as sawdust or wiring debris inside the

module. Such debris could cause fires, damage, or erroneous operation.

zMake sure to place the communication and power cables into a duct or fasten them

using a clamp.

Cables not placed in the duct or not clamped may hang or shift, allowing them to be

accidentally pulled, which may cause a module malfunction and cable damage.

zWhen removing the communication cable or power cables from the module, do not

pull the cable. When removing the cable with a connector, hold the connector on the

side that is connected to the module.

When removing the cable connected to the terminal block, first loosen the screws

on the terminal block.

Pulling the cable that is still connected to the module may cause malfunction or

damage to the module or cable.

About the Manuals

The following product manuals are available. Please use this table as a reference to

request the appropriate manual as necessary.

Detailed Manual

Manual name Manual No.

(Model code)

Type MELSECNET/10 Network System

(PLC to PLC network) Reference Manual

IB-66440

(13JE33)

Type MELSECNET/10 Network System

(Remote I/O network) Reference Manual

SH-3509

(13JE72)

Before use of this module, be sure to read the Type MELSECNET/10 Network

System (PLC to PLC network) Reference Manual or the Type MELSECNET/10

Network System (Remote I/O network) Reference Manual.

Compliance with the EMC Directive and the Low Voltage Directive

When incorporating the Mitsubishi programmable controller into other industrial

machinery or equipment and keeping compliance with the EMC and low voltage

directives, refer to Chapter 3 "EMC Directive and Low Voltage Instruction" of the User’s

Manual (Hardware) for the CPU module used or the programmable controller CPU

supplied with the base unit.

The CE logo is printed on the rating plate of the programmable controller, indicating

compliance with the EMC and low voltage directives.

For making this product compliant with the EMC and low voltage directives, please refer

to Section 3.1.3 "Cable" in Chapter 3 of the above-mentioned user’s manual.

1. Overview

This manual explains the specifications and names of each part, etc., of the

A1SJ71LP21GE model MELSECNET/10 network module (abbreviated as Network

Modules) which are used with MELSECNET/10 network system of the MELSEC-A

series.

(1) The use, cable used and installation position of the Network Modules are indicated

on the following chart.

Cable used

Application Optical fiber

cable Coaxial cable Position

A1SJ71LP21GE

The control

station, normal

station and remote

master station of

MELSECNET/10

(GI-62.5/125

cables)

Main base,

Extension

base I/O

slot

(2) After unpacking the Network Modules, confirm that any of the following products is

enclosed.

Model Description Quantity

A1SJ71LP21GE Model A1SJ71LP21GE MELSECNET/10

network module (optical loop type) 1

2. Performance Specifications

2.1 Performance specifications for the network module

The performance specifications for Network Modules are indicated as follows.

Item Specifications

X/Y 8192 points

B 8192 points

Maximum link

points per

network W 8192 points

PLC to PLC

network Y+B

8+ (2 W) <2000 bytes

Maximum link

points per station

Remote I/O

network

yRemote master station remote I/O station

Y+B

8+ (2 W) <1600 bytes

yRemote I/O station remote master station

X+B

8+ (2 W) <1600 bytes

Communication speed 10Mbps (equivalent to 20Mbps for multiple transmission)

Communication method Token ring

Synchronization method Frame synchronization

Encoding method NRZI encoding (Non Return to Zero Inverted)

Transmission route format Duplex optical loop

Transmission format Conform to HDLC (frame format)

Maximum number of networks 255 (The sum total of PLC to PLC network and remote I/O network)

Maximum number of groups 9 (Only for PLC to PLC network)

PLC to PLC

network

64 stations (Control station: 1 Normal stations: 63)Number of

stations for

connection per

network

Remote I/O

network

65 stations (Remote master station: 1 Remote I/O stations: 64)

Overall distance

(Station-to-station distance)

30km (2km)

Error control method Retry by CRC (X16+X12+X5+1) and overtime

RAS function yLoop back function due to abnormality detection and cable disconnection

yDiagnostic function for local link circuit check

yPrevention of system down due to shifting to control station (Only for PLC

to PLC networks)

yAbnormality detection by link special relay, resistor

yNetwork monitor, each type of diagnostic function

Transient transmission yN:N communication (Monitor, program upload/download, etc.)

yZNRD/ZNWR instructions (N:N) : AnUCPU dedicated instructions

Connection cable GI-62.5/125 optical fiber cable (Arranged by user *1)

Applicable connector 1-core optical connector plug (Arranged by user *1)

5VDC current consumption 0.65A

Weight 0.18kg *2

No. of occupied I/O points 32 points (I/O assignment: 32 points as special)

*1: Specialised training and specific tools are required to connect the connector to the optical fiber cable;

the connector itself is a custom product. Please contact your nearest Mitsubishi Electric System

Service Corporation when purchasing these items.

*2: The weight for the hardware version B or earlier is 0.33kg.

For general specifications of the network module, refer to the user's manual for the programmable

controller CPU that is to be used.

2.2 GI-62.5/125 optical fiber cable specifications

(1) Applicable cable specifications

yThe specifications for the GI-62.5/125 cable are given below.

yIf you prepare a GI-62.5/125 cable yourself, it must comply with the specifications

indicated below.

Item Specification

Fiber type GI (graded index) type multimode quartz glass

Core diameter 62.5μm

Clad diameter 125μm

Transmission loss 3dB/km or less

Wave length 0.85μm

Transmission band 300 MHz km or more

(2) Cable loss

Optical

module

OUT

A1SJ71LP21GE

Conversion cable (1m) *1

Adaptor

Connection loss: 1 dB (max.) Connection loss: 1 dB (max.)

Adaptor

Conversion cable (1m)

OUT

Total cable loss = 7.5 dB or less

5.5 dB or less

*1: Conversion cable

Conversion Type Cable

CA type ↔FC type AGE-1P-CA/FC1.5M-A

CA type ↔ST type AGE-1P-CA/ST1.5M-A

CA type ↔SMA type AGE-1P-CA/SMA1.5M-A

Purchased from: Mitsubishi Electric Europe GmbH

3. Handling

3.1 Cable length restrictions between stations

(1) The main modules case is made of plastic, so do not drop it or subject it to strong

impacts.

(2) Do not dismount the printed wiring board from the case. It may damage the module.

(3) When wiring, be careful never to let foreign matter from the above module such as

wiring scraps get inside the module. If something goes in, get rid of it.

(4) The module installation screw should be kept within the following range.

Screw Locations Tightening Torque Range

Module installation screws (M4 screws) 78 to 118Nycm

4. The Name and Setting of Each Part

Indicates the name and setting of each part of Network Modules.

A1SJ71LP21GE

OFF

N.ST

PRM

REM.

MNG

D.PRM

ST,SIZE

8,16,32,64

LB/LW SIZE

2,4,6,8k

CRC

OVER

AB. IF

TIME

DATA

UNDER

REM.

SW.E.

M/S.E.

PRM E.

R.E.

CPU R/W

RUN

MNG

S.MNG

DUAL

D.LINK

T.PAS.

F.E.

DISPLAY

(F.L) (R.L.)

NETWORK

NO.

X100

X10

OFF ON

FRONT SIDE

GR.NO.

ST.NO.

X10

MODE

0:ONLINE(A.R)

2:OFFLINE

F-RD

R-SD

Display of

hardware version

B or earlie

OUT

R-RD

F-SD

R-SD

F-RD

OUT

F-SD

R-RD

No. Name Contents

Name Status Contents

ON Normal stateRUN

OFF WDT error, SP.UNIT ERROR

MNG Operating as control station or remote master

station

(OFF: Normal station)

S.MNG Operating as sub-control station

DUAL Multiplex transfer in execution

(OFF: Multiplex transfer not executed)

D.LINK Data link being performed

(OFF: Data link stopped)

T.PAS. Participating in token passing

(Transient transmission is available.)

F.E. Forward loop (F.LOOP) is faulty.

<Cause> Power-off of ad

acent station, cable

disconnection, no connection, etc.

The position of

switch for the

display switch

over of 6) is

valid when it is

on the left

side.

PW Power being supplied

(OFF: No power being supplied)

PC Set as PLC to PLC network

(SW1 turned OFF)

REM. Set as remote I/O network (SW1 turned ON)

SW.E. Incorrect setting of switches 2) to 5) and 7)

M/S.E. Station number or control/remote master

station status is duplicated on the same

network.

PRM.E. yDuplication of network refreshes

parameters when multiple modules are

mounted.

yInconsistency between the common and

station specific parameters

yDifference between parameter received

from sub-control station and the one of the

host (received from control station).

R.E. Reverse loop (R.LOOP) is faulty.

<Cause> Power-off of adjacent station, cable

disconnection, no connection, etc.

The position of

switch for the

display switch

over of 6) is

valid when it is

on the right

side.

CPU R/W Communicating with CPU

CRC Error detected in code check of receive data

<Cause> Timing at which station sending data to target

station is disconnected from network, hardware failure, cable

fault, noise, etc.

OVER Error occurred when receive data processing is delayed

<Cause> Hardware failure, cable fault, noise, etc.

AB.IF yConsecutive 1s exceeding the specified number were

received.

yLength of received data is too short.

<Cause> Timing at which station sending data to target

station is disconnected from network, too short monitoring

time, cable fault, noise, etc.

TIME Data link WDT times out.

<Cause> Monitoring time too short, cable fault, noise, etc.

DATA Abnormal data larger than 2 kbytes are received.

<Cause> Cable fault, noise, etc.

UNDER

Internal send data processing is not done at fixed intervals.

<Cause> Hardware failure

SD Data being sent

1) LED

A1SJ71LP21GE

CRC

OVER

AB. IF

TIME

DATA

UNDER

REM.

SW.E.

M/S.E.

PRM E.

R.E.

CPU R/W

RUN

MNG

S.MNG

DUAL

D.LINK

T.PAS.

F.E.

Dimly

ON Data being received

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