Hitachi LQE521 User manual

First Edition, February 2003, SVE-1-116(B) (out of print)

Second Edition, June 2005, SVE-1-116(C) (out of print)

Third Edition, October 2008, SVE-1-116(D) (out of print)

Fourth Edition, February 2013, SVE-1-116(E)

The contents of this publication may be revised without prior notice.

No part of this publication may be reproduced in any form or by any means without permission in

writing from the publisher.

Printed in Japan.

BI<IC> (FL-MW2007, AI10)

S-1

WARNING

NOTICE

SAFETY PRECAUTIONS

z Before installation, operation, maintenance, and/or inspection of this product, be sure to read

through carefully this manual and other related manuals. Do not use this product until you are

familiar with all the information concerning this product, safety information, and precautions

provided in those manuals.

z Keep this manual in a readily accessible place so that users of this product may easily reach it.

z This manual contains information on potential hazards that is intended as a guide for safe use of

this product. The potential hazards listed in the manual are divided into four hazard levels of

danger, warning, caution, and notice, according to the level of their severity. The following are

definitions of the safety labels containing the corresponding signal words DANGER,

WARNING, CAUTION, and NOTICE.

: This safety label identifies precautions that, if not heeded, will result in

death or serious injury.

: Identifies precautions that, if not heeded, could result in death or serious

injury.

: Identifies precautions that, if not heeded, could result in minor or moderate

injury.

: This safety label without a safety alert symbol identifies precautions that,

if not heeded, could result in property damage or loss not related to

personal injury.

Failure to observe any of the CAUTION and NOTICE statements used in this manual

could also lead to a serious consequence, depending on the situation in which this product is used.

Therefore, be sure to observe all of those statements without fail.

The following are definitions of the phrases “serious injury,” “minor or moderate injury,” and

“property damage or loss not related to personal injury” used in the above definitions of the safety

labels.

Serious injury: Is an injury that requires hospitalization for medical treatment, has aftereffects,

and/or requires long-term follow-up care. Examples of serious injuries are as follows: vision loss,

burn (caused by dry heat or extreme cold), electric-shock injury, broken bone, poisoning, etc.

Minor or moderate injury: Is an injury that does not require either hospitalization for medical

treatment or long-term follow-up care. Examples of minor or moderate injuries are as follows: burn,

electric-shock injury, etc.

Property damage or loss not related to personal injury: Is a damage to or loss of personal

property. Examples of property damages or losses not related to personal injury are as follows:

damage to this product or other equipment or their breakdown, loss of useful data, etc.

The safety precautions stated in this manual are based on the general rules of safety applicable to

this product. These safety precautions are a necessary complement to the various safety measures

included in this product. Although they have been planned carefully, the safety precautions posted

on this product and in the manual do not cover every possible hazard. Common sense and caution

must be used when operating this product. For safe operation and maintenance of this product,

establish your own safety rules and regulations according to your unique needs. A variety of

industry standards are available to establish such safety rules and regulations.

DANGER

CAUTION

S-2

1. General Safety Guidelines

Before installing, operating inspecting or conducting maintenance on this unit, read the

following instructions carefully:

z Follow all the operating procedures provided in this manual.

z Pay special attention to and follow all the hazard warnings on the machine and in the

manual. Failure to do so can cause injury to yourself or damage to the machine.

z Do not perform any operation or action in any way other than as provided in this

manual. When in doubt, call the designated field engineer. Keep in mind that the

hazard warnings in this manual or on the machine cannot cover every possible case,

as it is impossible to predict and evaluate all circumstances beforehand.

Be alert and use your common sense.

z Do not install, wire, handle, modify, or use maintenance parts in any manner not

described in this manual. Such a practice may result in breakdown of this equipment

or peripherals, injury or even death. Hitachi will not be responsible for any accident or

failure resulting from such mishandling.

Read the following safety guidelines carefully and follow them when you conduct maintenance

of the machine.

Before starting maintenance

z Maintenance of the machine must be done only by trained and qualified field

engineers.

z Read and follow the safety guidelines and procedures in this manual and the related

manuals.

z In this manual and on the machine, hazard warnings are provided to aid you in

preventing or reducing the risk of death, personal injury, or product damage.

Understand and follow these hazard warnings fully.

z Keep in mind that the hazard warnings in this manual or on the machine cannot

cover every possible case, as it is impossible to predict and evaluate all

circumstances beforehand.

Be alert and use your common sense.

S-3

During work

z For each procedure, follow the given sequence of steps.

z Use the special tools and instruments, specified for the work in the manual or

commercially available tools and instruments which fit the purpose.

z Use measurement instruments and powered tools which are properly calibrated or

periodically inspected.

z Keep the maintenance area neat and tidy.

z Always put away parts, materials or tools when not in use.

z Wear an eye protector where anything may fly about.

z When using sharp objects or cutting tools, make sure that no part of your body lies in

the path of the blade bit, or point.

z Before finishing your work, make sure that all parts removed during maintenance

have been installed back in their original positions in the machine.

Make sure that no tool or foreign material is left in the machine.

S-4

Prevention of electric shocks

z Before starting work, make sure that, unless otherwise specifically instructed, there is

no potential electric hazard in the maintenance area such as insufficient grounding or

a wet floor.

z Before starting work, note where the emergency power-off switches are located and

make sure you know how to operate them.

z Unless otherwise specifically instructed, cut off all power sources to the machine

before starting maintenance. Just switching off the machine power supplies is usually

not enough.

When power is fed from a wall or floor outlet, unplug the power supply cord, or turn

off the switch on the power distribution panel or board. Attach a notice on the panel

or board prohibiting the use of the switch.

If the energy isolating device such as the switch on the power distribution panel or

board accepts a lockout device, turn off the power, lock out the energy isolating

device, and bring the key with you. When you take over the work and the key for the

lockout device if applicable, do not assume that the power is off. Make sure yourself

that the above-mentioned conditions such as switches are satisfied. If necessary,

use a measurement tool to ensure that the power is off.

z Do not touch any uninsulated conductor or surface, where so instructed, which

remains charged for a limited time after the external power supply to the machine is

disconnected.

z When working on a machine which has a grounding terminal, make sure that the

terminal is properly connected to the facility’s ground.

z When working close to a hazardously energized part, do not work alone; work with

another person who can immediately turn off the power in an emergency.

z Do not wear any metallic item such as a wrist watch with a metallic surface, or

metallic accessories.

If you wear eyeglasses with a metallic frame, take care not to let the frame touch an

uninsulated surface.

z Make sure that your hands and arms are dry.

z Unless otherwise specifically instructed, use only one hand when it is necessary to

work near an exposed live electric circuit.

This prevents the completion of the circuit through your heart even if you accidentally

touch the circuit.

z Do not use a dental mirror near an exposed live electric circuit.

The mirror surface is conductive and can become hazardous even if it is made of

plastic.

z Unless otherwise specifically instructed, do not supply power to any subassembly

such as a power supply unit or a motor while it is removed from the machine.

S-5

Procedures in an emergency

For electric shock

z Do not panic. Do not become another victim through contact with the injured person.

z First, shut off the electric current passing through the victim.

Use the emergency power-off switch, if there is one, or, otherwise, a normal power-

off switch. If this cannot be done, push the victim away from the source of the electric

current by using a nonconductive object such as a dry wooden stick.

z Then, call an ambulance.

z If the victim is unconscious, artificial respiration may be necessary.

A proper method for performing artificial respiration or resuscitation should be

learned beforehand. If the victim’s heart is not beating, cardio-pulmonary

resuscitation should be performed by a trained and qualified person.

For outbreak of fire

z First, shut off all the power from the machine using the emergency power-off switch,

if there is one, or the normal power-off switch.

z If the fire continues burning after the power is shut off, take suitable actions including

the use of a fire extinguisher or a call for the fire department.

S-6

2. Hazard Warning Statements

The following are the hazard warning statements contained in this manual.

2.1 NOTICE Statements

(chapter 1, page 1-2)

NOTICE

z LQE521 can be used with the SV.LINK module (LQE021) dedicated to the

S10mini, when used in the CPU unit of the S10mini (though LQE021 cannot

be used in the LPU unit of the S10V).

z When used in the LPU unit of the S10V, LQE521 cannot be used with the

ET.NET module (LQE720) (but can be used with LQE520).

(chapter 1, page 1-3)

NOTICE

When using 10BASE-5 connections, a 12-VDC external power supply is required.

(chapter 1, page 1-4)

NOTICE

z The physical line between the S10mini or S10V and MELSEC must be

exclusively used for high-speed I/O communications. Ensure that nothing is

connected to the physical line except for the S10mini or S10V and MELSEC.

z When using two high-speed I/O communication channels, provide a physical

line for each channel.

(chapter 1, page 1-6)

NOTICE

User of this product must have adequate knowledge of the Windows®

environment and user interface. This system conforms to the Windows®

standard. This manual is prepared for users who are familiar with the basic

Windows® operating procedures.

S-7

(chapter 2, page 2-2)

NOTICE

Switch off the power supply before operating the module number setting switch.

If you operate while the power supply is applied, it may result in a malfunction.

(chapter 3, page 3-2)

NOTICE

For the S10mini Series, mount option modules from the leftmost slot so that the

I/O module may not exist between the CPU module and an option module and

any empty slot may not exist between the option modules.

For the S10V series, there is no constraint on the mounting position and empty

slot.

S-8

(chapter 3, page 3-3)

NOTICE

z Dust or other foreign matter might accumulate on the connector, resulting in

poor contact. Immediately after the module is unpacked, perform the

mounting and wiring procedures.

z To prevent the module from being damaged, observe the following precautions

when you mount or demount the module:

• Before mounting the module to the mount base connector, check that the

connector pins are properly aligned and not bent, broken, or soiled with dirt

or the like.

• Ensure that the module is parallel to the mount base vertical surface as

shown below when mounting. If you connect a module to or disconnect it

from its connector while it is tilted, the connector pins may become damaged.

• If the mount base is positioned overhead due to the employed enclosure

structure, use a stepladder or the like and mount the module squarely. If

you mount the module obliquely, the connector may become damaged.

(chapter 3, page 3-4)

NOTICE

z For communication using the 10BASE-5, perform class D grounding for the FG

terminal of the SV.LINK module through the FG terminal of the mount base.

z Use a ground wire with a wire diameter of 2 mm2 or more.

z While the power supply is ON, do not touch the 10BASE-5 connector. The

system may malfunction due to static electricity.

[Bad example] [Good example]

Mount base

Module

S-9

(chapter 3, page 3-5)

NOTICE

z This hardware unit may malfunction if it is connected poorly or has a broken

line. After connecting the 10BASE-5 connector, check whether the locking

post is locked by the retainer.

z Do not touch the 10BASE-5 connector during power-on. Otherwise, the

system may malfunction due to static electricity, etc.

(chapter 3, page 3-6)

NOTICE

z The following 12 VDC external power supply is recommended. Use the

recommended power supply.

Power supply model name: HK-25A-12 (manufacturer: Densei-Lambda K.K.)

z When the two ET.NET modules LQE020 and LQE520 are installed, no

SV.LINK module can be installed.

z When ET.NET module LQE720 is installed, no SV.LINK module can be

installed.

z When mounting the SV.LINK module and ET.NET module on the same mount

base, perform setup so that the main module and submodule are distinctively

defined.

Example: If the ET.NET module is defined as the main module, be sure to

define the SV.LINK module as the submodule. If the ET.NET

module is defined as the submodule, be sure to define the SV.LINK

module as the main module.

z A total of up to two modules (ET.NET and SV.LINK modules) can be mounted

on the same mount base.

z Even if no ET.NET module is installed, you can mount only one SV.LINK

module.

S-10

(chapter 3, page 3-7)

NOTICE

z When using 10BASE-T, do not wire the FG terminal.

z There are two types of 10BASE-T twisted-pair cable available: straight cable

and cross cable. The user should choose one of these two types according

to the requirements of the hardware unit to which this product is to be

connected.

Hardware unit Cable type

Hub Straight

MELSEC

(direct connection)

Cross

(chapter 4, page 4-3)

NOTICE

Before installing the S10mini ET.NET system, be sure to exit all the currently

open Windows® programs. Do not forget to exit anti-virus software and other

memory-resident programs. If you install the S10mini ET.NET system without

exiting such programs, an error may occur during installation. If such an error

occurs, first uninstall the S10mini ET.NET system as directed in “4.2.2

Uninstalling,” exit all the Windows® programs, and then install the S10mini

ET.NET system again.

(chapter 4, page 4-5)

NOTICE

z The S10V Base System is required for operating the S10V ET.NET system.

If it is not installed, you cannot install the S10V ET.NET system.

z Before installing the S10V ET.NET system, be sure to exit all the currently

open Windows® programs. Do not forget to exit anti-virus software and other

memory-resident programs. If you install the S10V ET.NET system without

exiting such programs, an error may occur during installation. If such an error

occurs, first uninstall the S10V ET.NET system as directed in “4.2.2

Uninstalling,” exit all the Windows® Programs, and then install the S10V

ET.NET system again.

S-11

(chapter 4, page 4-5)

NOTICE

If Windows® opens a window during the uninstall process to display the question

“Remove Shared File?,” click the No button to retain shared files.

(chapter 4, page 4-7)

NOTICE

Confirm the version of the ET.NET system in the [Version information (ET.NET)]

window. The [Version information (ET.NET)] window will be displayed by

selecting “Version information (ET.NET)” in the icon located in the upper left

corner of the [ET.NET SYSTEM] window or [[S10V] ET.NET] window.

(chapter 4, page 4-8)

NOTICE

z The S10mini does not support GP-IB. Select “RS232C” on the

[Communication type] window.

z The S10V does not support GP-IB. “GP-IB” is not displayed on the

[Communication type] window.

S-12

(chapter 4, page 4-10)

NOTICE

On the [ET.NET SYSTEM] or [[S10V] ET.NET] window, the setting and the

display method vary depending on whether the ET.NET module is installed or not

as shown in the following table.

Installation

status

IP address Subnet mas

k

Route

information

Physical

address

Installed Settable

(The contents

of setting are

displayed.)

Settable

(The contents

of setting are

displayed.)

Settable

(Button is

displayed.)

Can be

referenced.

(Physical

address is

displayed.)

Not installed Settable

(The contents

of setting are

displayed.)

Settable

(The contents

of setting are

displayed.)

Not settable

(Button is not

displayed.)

Cannot be

referenced.

(FFFFFFFF is

displayed.)

(chapter 4, page 4-11)

NOTICE

The “Search of Station No.” is a function dedicated to SV.LINK (LQE720). This

function is not available for ET.NET (LQE521).

(chapter 4, page 4-12)

NOTICE

SV.LINK is not supporting the following commands. Therefore, the following

commands cannot be executed.

z Ladder and HI-FLOW (Display Communication of Error Log)

z Socket handler (Display Communication of Error Log)

z Display Status of DHP

z Display Status of Network

S-13

(chapter 5, page 5-8)

NOTICE

z Although the parameters are checked at startup, they are not checked for a

duplicate of areas 1 through 4 and transmission/reception areas. The user

should exercise area management so as to avoid area duplication. Also, note

that crossover use of registers is not checked for (the crossover use of

registers means that, if, for instance, a 16-word transmission beginning with

YFC0 is specified, the areas YFC0 through YFFF and Q000 through Q0BF

would be actually transmitted). To prevent unexpected operations, you

should perform setup so as to avoid the crossover use of registers.

z I/O data transmission/reception cannot be invoked simply by setting the above

areas. For the transmission/reception of I/O data, it is necessary to complete

word count setup as indicated in item (5), “Transmission/reception word count

setup areas.”

(chapter 5, page 5-9)

NOTICE

z Although the parameters are checked at startup, they are not checked for a

duplicate of the areas 1 through 4 and write/read areas. The user should

exercise area management so as to avoid area duplication.

z Local station and remote station (MELSEC) transmission/reception start

address setup areas must agree in bit/word register. If they do not agree, a

parameter setting error occurs and SV.LINK stops its communications.

(chapter 5, page 5-12)

NOTICE

After necessary communication parameters are set in the BD register, be sure to

start communication by writing a value other than 0 to the setting start flag. If

communication is started with undefined parameter values, a parameter error or

abnormal operation results.

S-14

(chapter 5, page 5-15)

NOTICE

After necessary communication parameters are set in the BD register, be sure to

start communication by writing a value other than 0 to the setting start flag. If

communication is started with undefined parameter values, a parameter error or

abnormal operation results.

(chapter 5, page 5-17)

NOTICE

After setting the required communication parameters in the DB register, be sure

to write a value other than 0 into the setting start flag and start communication.

If the communication is started when the parameters are unstable, a parameter

error or operation error may occur.

(chapter 6, page 6-2)

NOTICE

z Connect a repeater to a coaxial cable via a transceiver cable and a

transceiver.

z A repeater can be attached to a transceiver at any position in the coaxial

segment.

z Do not attach a station to a link cable.

z The distance between attached transceivers shall be a multiple of 2.5 (m).

(chapter 6, page 6-3)

NOTICE

z The number of repeaters between the S10mini or S10V and MELSEC shall be

two(2) or less.

z The number of segments to which two or more repeaters can be connected

shall be one(1).

S-15

(chapter 6, page 6-4)

NOTICE

z The maximum length of a link segment is 500 m.

z Do not attach a station to a link segment.

z The number of repeaters between the S10mini or S10V and MELSEC shall be

two(2) or less.

z The number of segments to which two or more repeaters can be connected

shall be one(1).

z A link segment including the repeaters at both ends is regarded as one

repeater.

S-16

(chapter 6, page 6-5)

NOTICE

Restrictions on multi-port transceiver installation positions

z When multi-port transceivers are installed on the most distant coaxial cable

segment in a system in which the maximum length of coaxial cables is

2,500 m (five segments), data delay time increases due to the installation.

To avoid this, restrictions are placed on the multi-port transceiver installation

positions. The maximum distance between stations via multi-port

transceivers decreases by 100 m (in terms of coaxial cable length) if it passes

one single multi-port transceiver. For this reason, there is the following

restriction on the coaxial cable length (L [m]) of the route from a station to

another station:

L [m] ≤ 2,500 [m] - 100 × N [m]

N: Total number of passing multi-port transceivers

z In a system consisting of coaxial cables of 2,500 m in total, set a multi-port

transceiver 100 m or more inside from the most distant coaxial cable

terminator (such terminator position decreasing the distance between

stations).

M

MPT

S

R

500 m

Coaxial segment

500 m

Link segment

500 m

Coaxial segment

500 m

Link segment

500 m

100 m

Coaxial segment

S

：S10mini or S10V

：Multi-port transceiver

：Repeater

：MELSEC

MPT

R

100 m

R R R

M

MPT

(cont.)

S-17

(chapter 6, page 6-6)

NOTICE

z When connecting a repeater between segments by using multi-port

transceivers, it is also necessary to set the multi-port transceivers at the

positions decreasing the distance between the most distant stations by 100 m

each time in passes one of the multi-port transceiver.

M

MPT

S

R

500 m

Coaxial segment

500 m

Coaxial segment

500 m

Coaxial segment

500 m

Link segment

500 m

100 m

Coaxial segment

S

：S10mini or S10V

：Multi-port transceiver

：Repeater

：MELSEC

MPT

R

100 m

R R

R

M

MPT MPT

MPT

100 m

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