YASKAWA MP2000 Series Programming manual

MANUAL NO. SIEP C880700 45A
モーションコントロール事業部（A4）（英文）
Overview of Troubleshooting
Troubleshooting Errors in Communication with MPE720
Troubleshooting Errors in Message Communication
1
2
3
MP2300
TEST
RDY
ALM
TX
RUN
ERR
BAT
MON
CNFG
INT
SUP
STOP
SW1
OFF ON
M-4/10
BATTERY
CPU I/O
DC24V
DC 0V
RUN
STRX
TX
ERR
COL
RX
PORT
OFF ON
10Base-T
INIT
TEST
Ethernet Communication
Machine Controller MP2000 Series
Troubleshooting Manual

Copyright ©2010 YASKAWA ELECTRIC CORPORATION
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording,
or otherwise, without the prior written permission of Yaskawa. No patent liability is assumed
with respect to the use of the information contained herein. Moreover, because Yaskawa is con-
stantly striving to improve its high-quality products, the information contained in this manual is
subject to change without notice. Every precaution has been taken in the preparation of this
manual. Nevertheless, Yaskawa assumes no responsibility for errors or omissions. Neither is
any liability assumed for damages resulting from the use of the information contained in this
publication.

ii
Preface
This manual describes the methods for troubleshooting the trouble that occurs while using devices that are connected to
an MP2000 Series Machine Controller via Ethernet.
Read this manual carefully to ensure correct operation in Ethernet communication with MP2000 Series Machine Con-
trollers.
Using this Manual
Read this manual carefully to ensure the proper use of the MP2000 Series Machine Controller. Also, keep this manual
in a safe place so that it can be referred to whenever necessary.
Visual Aids
The following aids are used to indicate certain types of information for easier reference.
• Indicates important information that should be memorized.
• Indicates supplemental information.
Copyrights
IMPORTANT
INFO
• DeviceNet is a registered trademark of the ODVA (Open DeviceNet Venders Association).
• PROFIBUS is a trademark of the PROFIBUS User Organization.
• Ethernet is a registered trademark of the Xerox Corporation.
• MPLINK is a registered trademark of the YASKAWA Electric Corporation.
• Microsoft, Windows, Windows NT, and Internet Explorer are registered trademarks of the Microsoft Corporation.
• MECHATROLINK is a trademark of the MECHATROLINK Members Association.
• Other product names and company names are the trademarks or registered trademarks of the respective company. “TM”
and the ®mark do not appear with product or company names in this manual.

iii
Related Manuals
Refer to the following related manuals as required. Thoroughly check the specifications, restrictions, and
other conditions of the product before attempting to use it.
Manual Name Manual Number Contents
Machine Controller MP2200 User’s Manual SIEP C880700 14 Describes how to use the MP2200 Machine Control-
ler and the modules that can be connected.
Machine Controller MP2000 Series MPU-01
Multiple-CPU Module User’s Manual SIEP C880781 05
Describes the functions, specifications, and operation
procedures of the MPU-01 Motion CPU Module that
can be connected to MP2000 Series Machine Con-
trollers.
Machine Controller MP2300 Basic Module
User’s Manual SIEP C880700 03 Describes the application methods and modules to be
connected.
Machine Controller MP2000 Series Communica-
tion Module User’s Manual SIEP C880700 04
Describes the functions, specifications, and applica-
tion methods of the MP2000-series Communication
Modules (217IF, 218IF, 260IF, 261IF).
Machine Controller MP900/MP2000 Series
User’s Manual, Ladder Programming SIEZ-C887-1.2 Describes the instructions used in MP900/MP2000 ladder programming.
Machine Controller MP900/MP2000 Series
User’s Manual Motion Programming SIEZ-C887-1.3 Describes the instructions used in MP900/MP2000 motion programming.
Engineering Tool for MP2000-series Machine
Controller MPE720 Version 6 User’s Manual SIEP C880700 30
Describes the installation and operation of the engi-
neering tools for MP2000-series Machine Controller
MPE720 Version 6.
Machine Controller MP900/MP2000 Series
MPE720 Software for Programming Device
User’s Manual
SIEP C880700 05 Describes how to install and operate the MP900/
MP2000-series programming system (MPE720).
Machine Controller MP900/MP2000 Series
New Ladder Editor User’s Manual
Programming Manual
SIEZ-C887-13.1
Describes the programming instructions of the New
Ladder Editor, which assists MP900/MP2000-series
design and maintenance.
Machine Controller MP900/MP2000 Series
New Ladder Editor User’s Manual Operation SIEZ-C887-13.2
Describes the operating methods of the New Ladder
Editor, which assists MP900/MP2000-series design
and maintenance.

iv
Safety Information
This manual presents safety information using the following notices. The safety information is important and
must be observed.
Indicates precautions that, if not heeded, could possibly result in loss of life, serious
injury, or property damage.
Indicates precautions that, if not heeded, could result in relatively serious or minor
injury, or property damage.
If not heeded, even precautions classified under can lead to serious results
depending on circumstances.
Indicates prohibited actions. Specific prohibitions are indicated inside .
For example, indicates prohibition of open flame.
Indicates mandatory actions. Specific actions are indicated inside .
For example, indicates mandatory grounding.
WARNING
CAUTION
CAUTION
PROHIBITED
MANDATORY

v
Safety Precautions
The following precautions are for checking products on delivery, storage, transportation, installation, wiring, operation,
application, inspection, and disposal. These precautions are important and must be observed.
General Precautions
• Before connecting the machine and starting operation, ensure that an emergency stop procedure has
been provided and is working correctly.
There is a risk of injury.
• Do not touch anything inside the product.
There is a risk of electrical shock.
• Always keep the front cover attached when power is being supplied.
There is a risk of electrical shock.
• Observe all procedures and precautions given in this manual for trial operation.
Operating mistakes while the servomotor and machine are connected may damage the machine or even cause
accidents resulting in injury or death.
There is a risk of electrical shock.
• Do not remove the front cover, cables, connector, or options while power is being supplied.
There is a risk of electrical shock.
• Do not damage, pull on, apply excessive force to, place heavy objects on, or pinch cables.
There is a risk of electrical shock, operational failure or burning of the MP2000 Series Machine Controller.
• Do not attempt to modify the MP2000 Series Machine Controller in any way.
There is a risk of injury or device damage.
• Do not approach the machine during a momentary interruption of the power supply. When the power
is restored, the MP2000 Series Machine Controller and the device connected to it may start opera-
tion suddenly. Implement safety measures in advance to ensure the safety of personnel in the event
that operation restarts suddenly.
There is a risk of injury.
• Do not allow installation, disassembly, or repairs to be performed by anyone other than specified per-
sonnel.
There is a risk of electrical shock or injury.
WARNING

vi
Storage and Transportation
Installation
• Do not store or install the MP2000 Series Machine Controller in the following locations.
There is a risk of fire, electrical shock, or device damage.
Direct sunlight
Ambient temperature exceeds the storage or operating conditions
Ambient humidity exceeds the storage or operating conditions
Rapid changes in temperature or locations subject to condensation
Corrosive or flammable gas
Excessive dust, dirt, salt, or metallic powder
Water, oil, or chemicals
Vibration or shock
• Do not overload the MP2000 Series Machine Controller during transportation.
There is a risk of injury or an accident.
• Never subject the product to an atmosphere containing halogen (fluorine, chlorine, bromine, or
iodine) during transportation or installation.
There is a risk of device damage or an accident.
• If disinfectants or insecticides must be used to treat packing materials such as wooden frames, pal-
lets, or plywood, the packing materials must be treated before the product is packaged, and methods
other than fumigation must be used.
Example: Heat treatment, where materials are kiln-dried to a core temperature of 56°C for 30 minutes or
more.
If the electronic products, which include stand-alone products and products installed in machines, are packed
with fumigated wooden materials, the electrical components may be greatly damaged by the gases or fumes
resulting from the fumigation process. In particular, disinfectants containing halogen, which includes chlorine,
fluorine, bromine, or iodine can contribute to the erosion of the capacitors.
• Never use the MP2000 Series Machine Controller in locations subject to water, corrosive atmo-
spheres, or flammable gas, or near burnable objects.
There is a risk of electrical shock or fire.
• Do not step on the MP2000 Series Machine Controller or place heavy objects on it.
There is a risk of injury.
• Do not block the air exhaust port or allow foreign objects to enter the MP2000 Series Machine Con-
troller.
There is a risk of element deterioration inside, an accident, or fire.
• Always mount the MP2000 Series Machine Controller in the specified orientation.
There is a risk of an accident.
• Do not subject the MP2000 Series Machine Controller to strong shock.
There is a risk of an accident.
CAUTION
CAUTION

vii
Wiring
Selecting, Separating, and Laying External Cables
• Check the wiring to be sure it has been performed correctly.
There is a risk of motor run-away, injury, or an accident.
• Always use a power supply of the specified voltage.
There is a risk of burning.
• In places with poor power supply conditions, take all steps necessary to ensure that the input power
supply is within the specified voltage range.
There is a risk of device damage.
• Install breakers and other safety measure to provide protection against shorts in external wiring.
There is a risk of fire.
• Provide sufficient shielding when using the MP2000 Series Machine Controller in the following loca-
tions.
There is a risk of device damage.
Noise, such as from static electricity
Strong electromagnetic or magnetic fields
Radiation
Near to power lines
• When connecting the battery, connect the polarity correctly.
There is a risk of battery damage or explosion.
• Only qualified safety-trained personnel should replace the battery.
If the battery is replaced incorrectly, machine malfunction or damage, electric shock, or injury may result.
• When replacing the battery, do not touch the electrodes.
Static electricity may damage the electrodes.
• After replacing the battery, separate the used battery from regular waste and deal with it according to
the applicable local regulations.
• Consider the following points when selecting the I/O signal lines (external cables) to connect the
MP2000 Series Machine Controller to external devices.
Mechanical strength
Noise interference
Wiring distance
Signal voltage, etc.
• It is possible to reduce the influence of noise from the power lines. For that purpose, separate the I/O
signal lines from the power lines both inside and outside the control box.
If the I/O signal lines and power lines are not separated properly, malfunctioning may result.
CAUTION
CAUTION
Example of Separated External Cables
Steel separator
Power
circuit
cables
General
control cir-
cuit cables
Digital I/O
signal
cables

viii
Maintenance and Inspection Precautions
Disposal Precautions
General Precautions
• Do not attempt to disassemble the MP2000 Series Machine Controller.
There is a risk of electrical shock or injury.
• Do not change wiring while power is being supplied.
There is a risk of electrical shock or injury.
• When replacing the MP2000 Series Machine Controller, restart operation only after transferring the
programs and parameters from the old Module to the new Module.
If the MP2000 Series Machine Controller is operated without having transferred the data, there is a risk of
device damage.
• Dispose of the MP2000 Series Machine Controller as general industrial waste.
Observe the following general precautions
to ensure safe application.
• The products shown in illustrations in this manual are sometimes shown without covers or protec-
tive guards. Always replace the cover or protective guard as specified first, and then operate the
products in accordance with the manual.
• The drawings presented in this manual are typical examples and may not match the product you
received.
• If the manual must be ordered due to loss or damage, inform your nearest Yaskawa representative
or one of the offices listed on the back of this manual.
CAUTION
CAUTION

ix
Warranty
( 1 ) Details of Warranty
Warranty Period
The warranty period for a product that was purchased (hereafter called “delivered product”) is one year from the time
of delivery to the location specified by the customer or 18 months from the time of shipment from the Yaskawa factory,
whichever is sooner.
Warranty Scope
Yaskawa shall replace or repair a defective product free of change if a defect attributable to Yaskawa occurs during the
warranty period above. This warranty does not cover defects caused by the delivered product reaching the end of its
service life and replacement of parts that require replacement or that have a limited service life.
This warranty does not cover failures that result from any of the following causes.
1. Improper handling, abuse, or use in unsuitable conditions or in environments not described in product catalogs or
manuals, or in any separately agreed-upon specifications
2. Causes not attributable to the delivered product itself
3. Modifications or repairs not performed by Yaskawa
4. Abuse of the delivered product in a manner in which it was not originally intended
5. Causes that were not foreseeable with the scientific and technological understanding at the time of shipment from
Yaskawa
6. Events for which Yaskawa is not responsible, such as natural or human-made disasters
( 2 ) Limitations of Liability
1. Yaskawa shall in no event be responsible for any damage or loss of opportunity to the customer that arises due to
failure of the delivered product.
2. Yaskawa shall not be responsible for any programs (including parameter settings) or the results of program execu-
tion of the programs provided by the user or by a third party for use with programmable Yaskawa products.
3. The information described in product catalogs or manuals is provided for the purpose of the customer purchasing
the appropriate product for the intended application. The use thereof does not guarantee that there are no infringe-
ments of intellectual property rights or other proprietary rights of Yaskawa or third parties, nor does it construe a
license.
4. Yaskawa shall not be responsible for any damage arising from infringements of intellectual property rights or other
proprietary rights of third parties as a result of using the information described in catalogs or manuals.

x
( 3 ) Suitability for Use
1. It is the customer’s responsibility to confirm conformity with any standards, codes, or regulations that apply if the
Yaskawa product is used in combination with any other products.
2. The customer must confirm that the Yaskawa product is suitable for the systems, machines, and equipment used by
the customer.
3. Consult with Yaskawa to determine whether use in the following applications is acceptable. If use in the application
is acceptable, use the product with extra allowance in ratings and specifications, and provide safety measures to
minimize hazards in the event of failure.
• Outdoor use, use involving potential chemical contamination or electrical interference, or use in conditions or
environments not described in product catalogs or manuals
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, vehicle systems,
medical equipment, amusement machines, and installations subject to separate industry or government regula-
tions
• Systems, machines, and equipment that may present a risk to life or property
• Systems that require a high degree of reliability, such as systems that supply gas, water, or electricity, or sys-
tems that operate continuously 24 hours a day
• Other systems that require a similar high degree of safety
4. Never use the product for an application involving serious risk to life or property without first ensuring that the sys-
tem is designed to secure the required level of safety with risk warnings and redundancy, and that the Yaskawa
product is properly rated and installed.
5. The circuit examples and other application examples described in product catalogs and manuals are for reference.
Check the functionality and safety of the actual devices and equipment to be used before using the product.
6. Read and understand all use prohibitions and precautions, and operate the Yaskawa product correctly to prevent
accidental harm to third parties.
( 4 ) Specifications Change
The names, specifications, appearance, and accessories of products in product catalogs and manuals may be changed at
any time based on improvements and other reasons. The next editions of the revised catalogs or manuals will be pub-
lished with updated code numbers. Consult with your Yaskawa representative to confirm the actual specifications
before purchasing a product.

xi
Contents
Preface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Using this Manual- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Safety Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - iv
Safety Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - v
Warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ix
1 Overview of Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
1.1 Flow for Checking Trouble- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
1.1.1 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
1.1.2 Details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
1.2 Checking Ethernet Cables - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
1.3 Checking Ethernet Communication Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
1.4 Checking the LED Indications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
1.4.1 Built-in Ethernet Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
1.4.2 218IF-02 Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
1.4.3 218IF-01 Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-7
1.5 Troubleshooting Quick Reference - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-8
2 Troubleshooting Errors in Communication with MPE720 - - - - - - - - - - - - - - - - 2-1
2.1 Flow for Checking Trouble- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
2.2 Checking Error Details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
2.2.1 Connection Error - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
2.2.2 Communication Error - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
2.2.3 Model Error - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
2.3 Checking the IP Address of the Computer - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
2.4 Checking the Communication Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-7
2.5 Checking the Communication Process Settings- - - - - - - - - - - - - - - - - - - - - - - - 2-9
2.6 Communication Time-out Error - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-12
3 Troubleshooting Errors in Message
Communication - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
3.1 Flow for Checking Trouble- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
3.2 Checking Switch Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
3.2.1 Built-in Ethernet Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
3.2.2 218IF-02 and 218IF-01 Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
3.3 Message Communication Error - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6
3.3.1 Checking the Error Status and Transmission Status - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6
3.3.2 Checking the Connection Parameters- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-9
3.3.3 Checking the Message Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
3.4 Communication Broken off during Message Communication- - - - - - - - - - - - - - 3-23
3.4.1 When No Error Is in Effect - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-23
3.4.2 When an Error Is in Effect - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-24
3.5 Other Trouble during Message Communication - - - - - - - - - - - - - - - - - - - - - - - 3-25
Index
Revision History

1-1
1
Overview of Troubleshooting
1
Overview of Troubleshooting
1.1 Flow for Checking Trouble - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
1.1.1 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
1.1.2 Details - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
1.2 Checking Ethernet Cables - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
1.3 Checking Ethernet Communication Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
1.4 Checking the LED Indications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
1.4.1 Built-in Ethernet Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
1.4.2 218IF-02 Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
1.4.3 218IF-01 Module - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-7
1.5 Troubleshooting Quick Reference - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-8

1.1 Flow for Checking Trouble
1.1.1 Overview
1-2
1.1 Flow for Checking Trouble
1.1.1 Overview
When trouble occurs in Ethernet communication, the important issue is to recover normal system operation as
soon as possible by finding the cause of the trouble and taking the necessary measures.
The overview of troubleshooting on occurrence of trouble is as follows.
Step 1
Check the following points. (Refer to Chapter 1.)
• Ethernet cables and Ethernet communication modes
• LED indications at the front of the Ethernet Module and on the Ethernet connector
Step 2 Check the connection to MPE720.
When connection cannot be established When connection can be established but mes-
sage communication is not possible
Step 3 Check the settings for the connection to
MPE720. (Refer to Chapter 2.) Step 3 Check the switch settings. (Refer to 3.2 Check- ing Switch Settings.)
Step 4
In the module detail definition window of
MPE720, check the following. (Refer to 3.3.1
Checking the Error Status and Transmission
Status, 3.3.2 Checking the Connection Param-
eters.)
• Error status
• Transmission status
Step 5
Check the following with the message func-
tion of MPE720. (Refer to 3.3.3 Checking the
Message Function.)
• Process result of the message function and
status
• Inputs for the message function
• Parameters of the message function

1.1 Flow for Checking Trouble
1.1.2 Details
1-3
1
Overview of Troubleshooting
1.1.2 Details
Start
A cross-over
cable is used for the direct
connection between the computer
and the Ethernet
Module.
NO
YES
Use a cross-over cable.
If the connection is made via
a hub, use straight cables.
Check the following.
• The power to the connecting devices
(computer, hub) is turned ON.
• Ethernet cables are connected properly.
The IP LED at the front of
the Ethernet Module is lit.
NO 12
YES
The IP* or ERR* LED
at the front of the Ethernet Module
is flashing.
The 218IF-01 Module is used.
YES
YES
NO
Check whether the module
configuration definition has
been set and saved to the
flash memory properly.
Replace the module.
*1ޓFor the built-in Ethernet Module
*2ޓFor the 218IF-01 or 218IF-02 Module
NO
The LINK LED on
the Ethernet connector is lit.
YES
NO
Connection with MPE720
version 6 can be established.
NO
YES
This is the trouble related to
message communication.
End
This is the trouble
related to MPE720.
Check whether appropriate Ethernet
communication modes are set.
For details, refer to 1.3 Checking Ethernet Communication
Modes.
For details, refer to 1.2 Checking Ethernet
Cables.
For details, refer to 1.4 Checking
the LED Indications.
Refer to Chapter 2
Troubleshooting
Errors in Communi-
cation with MPE720.
Refer to Chapter 3 Trou-
bleshooting Errors in Mes-
sage Communication.

1.2 Checking Ethernet Cables
1-4
1.2 Checking Ethernet Cables
The use of incorrect Ethernet cables may impede appropriate connection with MPE720 and message
communication. For Ethernet cables, use the twisted-pair cables with RJ-45 connectors shown below.
* 1. Machine Controllers MP2300S, MP2400 and MP2310 incorporate a built-in Ethernet Module.
* 2. Some devices such as switching hubs available in the market support the automatic MDI/MDI-X function that
enables use of either straight or cross-over cables.
1.3 Checking Ethernet Communication Modes
The table below shows the communication modes of the remote device (the hub or the controller of another
manufacturer that is connected directly to the Machine Controller) in which communication is possible.
* 1. Machine Controllers MP2300S, MP2400 and MP2310 incorporate a built-in Ethernet Module.
* 2. The auto-negotiation function automatically detects the Ethernet communication mode (communication speed,
half-/full-duplex).
Module Model Ethernet Type Category Remarks
Built-in Ethernet*1
100Base-TX Category 5 or better
• When connecting to a remote device via a hub:
Use straight cables*2
• When connecting to a remote device directly (without
using a hub):
Use a cross-over cable*2
218IF-02
218IF-01 10Base-T Category 3 or better
Module Model
Communication
Mode of Local
Station
Communication Mode of Remote Station
Auto-
negotiation
10Base-T
Half-duplex
10Base-T
Full-duplex
100Base-TX
Half-duplex
100Base-TX
Full-duplex
Built-in
Ethernet*1 Auto-
negotiation*2
Depending on
the remote
device
Communicates
only in the
10Base-T half-
duplex mode
Communi-
cation
impossible
Communicates
only in the
100Base-TX
half-duplex
mode
Communica-
tion impossible
218IF-02
218IF-01 10Base-T
half-duplex
Depending on
the remote
device
Communicates
only in the
10Base-T half-
duplex mode
Communi-
cation
impossible
Communication
impossible
Communica-
tion impossible

1.4 Checking the LED Indications
1.4.1 Built-in Ethernet Module
1-5
1
Overview of Troubleshooting
1.4 Checking the LED Indications
The error status and the details of the error can be checked using the LED indications at the front of the Ethernet
Module.
This section describes the patterns of LED indications and their details.
1.4.1 Built-in Ethernet Module
Note: Machine Controllers MP2300S, MP2400 and MP2310 incorporate a built-in Ethernet Module.
Note: {: Unlit, z: Lit, : Flashing, –: Indefinite
LEDs at the front of the Ethernet Module
 LEDs on the Ethernet Connector
RDY RUN
ALM ERR
MTX BAT
TRX IP
Ethernet
LINK
100M
Cate-
gory
LED Indication
Indication RemedyModule Front Connector
IP TRX LINK
Normal z–zOperating normally Normal operation is in progress.
Alarm
–{{
No Ethernet connection
Ethernet connection is not established.
Check the following.
• Ethernet cables are connected properly.
• Cables are not broken.
• The power to an Ethernet device such as a hub
that is connected directly to the Ethernet Mod-
ule with an Ethernet cable is turned on.
{––
Module configuration defini-
tion not set
Set the module configuration definition of the
Ethernet Module using MPE720.
Error ––
Module fault Hardware failure has occurred.
Replace the Ethernet Module.

1.4 Checking the LED Indications
1.4.2 218IF-02 Module
1-6
1.4.2 218IF-02 Module
Note: {: Unlit, z: Lit, : Flashing, –: Indefinite
LEDs at the front of the Ethernet Module
LEDs on the Ethernet connector
RUN ERR
STRX IP
TX RX
Ethernet
LINK
100M
Cate-
gory
LED Indication
Indication RemedyModule Front Connector
RUN ERR IP TX RX LINK
Normal z{z –– zOperating normally Normal operation is in progress.
Alarm
z–– {{ { No Ethernet connection
Ethernet connection is not estab-
lished.
Check the following.
• Ethernet cables are connected
properly.
• Cables are not broken.
• The power to an Ethernet
device such as a hub that is
connected directly to the
Ethernet Module with an
Ethernet cable is turned on.
z–{–– –Module configuration definition
not set
Set the module configuration
definition of the 218IF-02 Mod-
ule using MPE720.
Error
 ––– –
Module fault Hardware failure has occurred.
Replace the Ethernet Module.
–––– –

1.4 Checking the LED Indications
1.4.3 218IF-01 Module
1-7
1
Overview of Troubleshooting
1.4.3 218IF-01 Module
Note: {: Unlit, z: Lit, : Flashing, –: Indefinite
LEDs at the front of the Ethernet Module
RUN ERR
STRX COL
TX RX
Cate-
gory
LED Indication
Indication RemedyModule Front
RUN ERR COL TX RX
Normal z{ { ––
Operating normally Normal operation is in progress.
Alarm
z–– {{
No Ethernet connection
Ethernet connection is not established.
Check the following.
• Ethernet cables are connected properly.
• Cables are not broken.
• The power to an Ethernet device such as a
hub that is connected directly to the Ethernet
Module with an Ethernet cable is turned on.
z{ z/––
Collision detected
Transmission data collisions are occurring in
Ethernet communication. Reduce the load of
the network.
<Remedy example>
• Adjust the message transmission cycles.
• Use a switching hub.
Error
 –––
Module fault Hardware failure has occurred.
Replace the Ethernet Module.
––––

1.5 Troubleshooting Quick Reference
1-8
1.5 Troubleshooting Quick Reference
This section provides examples of Ethernet communication trouble that occurs frequently and can be remedied
with relatively simple operations. If the error cannot be corrected by following the information in the table below,
troubleshoot it by referring to the flow in 1.1.2 Details.
Detail of Trouble Cause Remedy
Connection with
MPE720 cannot be
established.
A straight cable is used for the direct connection
between the computer and the Ethernet Module.
Use a cross-over cable.
Note that straight cables are used when connecting via a hub.
Note: The 218IF-02 Module automatically detects the cable
type so either type of cable can be used.
The module configuration of the Ethernet Module is
not defined or not saved to the flash memory.
(When the IP LED at the front of the module is unlit,
with the built-in Ethernet or 218IF-02 Modules. With
the 218IF-01 Module, judgment based on the LED
indication is not possible.)
After setting the INIT or E-INIT switch at the front of the
Ethernet Module to ON and turning the power OFF and back
ON, define the module configuration and save it to the flash
memory using MPE720.
The IP address of the computer is set to be automati-
cally allocated.
Set the IP address of the computer manually, as shown in the
following example.
Example: Ethernet Module: 192.168.1.1
Computer: 192.168.1.10
Connection to the 218IF-01 Module was attempted
with Ethernet LP set for the communication port type.
Set Ethernet for the communication port type and connect
again.
Message communi-
cation does not
start.
The INIT or E-INIT switch at the front of the Ethernet
Module is left at ON.
Set the INIT or E-INIT switch at the front of the Ethernet
Module to OFF and turn the power OFF and back ON.
(If one of these switches is set to ON, message communication
will not be started.)
After changing the transmission definition or connec-
tion parameters, the data has not been saved to the
flash memory or the power has not been turned OFF
and back ON.
Save the data to the flash memory and turn the power OFF and
back ON.
(After changing or adding the IP address or connection param-
eters, it is necessary to turn the power OFF and back ON to
enable the setting.)
No message function has been created or executed in
the ladder program.
Create a message function in the ladder program.
(No message function is required for automatic data reception
or I/O message communication with the built-in Ethernet
Module.)
The Dev-Typ (transmission device type) setting in the
message function is incorrect.
For the built-in Ethernet or 218IF-02 Module: Set 16.
For the 218IF-01 Module: Set 6.
The remote device does not have a transmission func-
tion (setting) for communicating with the Machine
Controller.
Check the transmission function (setting) of the remote device.