Datasheet WT30 Datasheet (OMRON)

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Cat. No. N138-E1-01

WT30

FA Wireless SS Terminal

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Authorized Distributor:

Cat. No. N138-E1-01 Note: Specifications subject to change without notice

Printed in Japan 0105-?M (0105) (?)

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Notice

(1) This manual may not be copied, reproduced, or reprinted, in whole or in part, without permission

from OMRON. (2) The specifications listed within this manual may be revised without prior notice. (3) The information in this manual was compiled with the utmost care. However, if you should find any

errors or inconsistencies, please contact the OMRON business office. Be sure to tell us the revi-

sion number of the manual in which you found the error.

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Introduction

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

Thank you for purchasing this WT30 FA Wireless SS Terminal (also referred to as WT30 or WT30 Terminal in this manual). The WT30 System consists of a Serial Master Station and I/O Slave Stations. The Serial Master Station is a wireless terminal that collects ON/OFF data using wireless communications and is connected to a device with an RS-232C interface (e.g., a personal computer or PLC). I/O Slave Stations with I/O terminals can also be connected to a DeviceNet-compatible WD30 Master.

Intended Audience

This manual is intended for the following readers.

• Persons in charge of introducing FA devices

• Persons who design FA systems

• Persons who install or connect FA devices

• Persons who manage working FA installations Persons who use this product must have sufficient knowledge of electrical systems (i.e., an electrical

engineer or the equivalent).

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READ AND UNDERSTAND THIS DOCUMENT

Please read and understand this document before using the product. Please consult your OMRON representative if you have any questions or comments.

WARRANTY

OMRON’s exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON’S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

SUITABILITY FOR USE

THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY ARE NOT DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS, AND SHOULD NOT BE RELIED UPON AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs for OMRON's safety rated products.

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer’s application or use of the product.

At the customer’s request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

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NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PERFORMANCE DATA

Performance data given in this document is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user’s programming of a programmable product, or any consequence thereof.

This document shall not be copied for sales or promotions without permission.

This document is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this document in any manner, for any other purpose. If copying or transmitting this document to another, please copy or transmit it in its entirety.

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Approved Standards

Conforming Wireless Standards: Japan: ARIB STD-T66

USA: FCC part 15.247 Europe: EN 300 440-2 Conforming Safety Standards: UL508 (Listing)

Conforming EMC Standards: EN 301 489-3

Conforming EMF Standards: EN 50371

Applicable Countries

This product has been approved for wireless standards in the countries listed below. This product cannot be used in any other countries.

Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungry, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, UK, USA

Conformance to EN Standards

Use a DC power line less than 3 m to conform to EN standards. If a power line of 3 m or longer is required, extend the length at the Switching Power Supply’s primary side (i.e., the AC power line).

EN 60950-1

EN 301 489-17

Conformance to UL Standards

Always use a Class 2 power supply to conform to UL standards.

FCC Notice

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Caution

To ensure that the WLAN transmitter complies with current FCC regulations limiting both maximum RF output power and human exposure to radio frequency radiation, a separation distance of at least 20 cm must be maintained between the Unit’s antenna and the body of the user and any nearby persons at all times and in all applications and uses.

Notice

Changes or modificatiaons not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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CE NOTICE

English Hereby, Omron Corporation, declares that this WT30 is in

compliance with the essential requirements and other relevant provisions of Directive 1995/5/EC.

Finnish Omron Corporation vakuuttaa täten että WT30 tyyppinen laite

on direktiivin 1995/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

Dutch Bij deze verklaart Omron Corporation dat deze WT30 voldoet

aan de essentiële eisen en aan de overige relevante bepalingen van Richtlijn 1995/5/EC.

Swedish Härmed intygar Omron Corporation att denna WT30 står I

överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1995/5/EG.

Danish Undertegnede Omron Corporation erklærer herved, at følgende

udstyr WT30 overholder de væsentlige krav og øvrige relevante krav i direktiv 1995/5/EF

German Hiermit erklärt Omron Corporation die Übereinstimmung des

Gerätes WT30 mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1995/5/EG.

Italian Con la presente Omron Corporation dichiara che questo WT30 è

conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1995/5/CE.

Spanish Por medio de la presente Omron Corporation declara que el

WT30 cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1995/5/CE

Portuguese

Norwegian

French Par la Présente Omron Corporation déclare que l'appareil WT30

Omron Corporation declara que este WT30 está conforme com os requisitos essenciais e outras disposições da Directiva 1995/ 5/CE.

Omron Corporation erklærer herved, at følgende utstyr WT30 overholder de vesentlige krav og øvrige relevante bestemmelser i direktiv 1995/5/EF

est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1995/5/CE.

La France étant le seul pays ayant une directive locale qui diffère légèrement de la directive Européenne, ce produit ne peut être utilisé en France.

Greek

Czech

Hungarian

Polish

Omron Corporation tímto prohlasuje, ze tento WT30 je ve shode se základními pozadavky a dalsími príslusnymi ustanoveními smernice 1999/5/ES.

Alulírott, Omron Corporation nyilatkozom, hogy a WT30 megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/ EC irányelv egyéb elõírásainak.

Niniejszym Omron Corporation deklaruje, ze dane urzadzenie WT30 spelnia wymagania zasadnicze i inne stosowne postanowienia Dyrektywy 1995/5/EC.

Overseas Use Export permission must be obtained from the Japanese government before

exporting (or providing to a non-resident) items or technology classified as export-restricted under the Japanese Foreign Exchange and Foreign Trade Control Law.

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Safety Precautions

Definition of Precautionary Information

The following notation is used in this manual to provide precautions required to ensure safe usage of the product.

The safety precautions that are provided are extremely important to safety. Always read and heed the information provided in all safety precautions.

The following notation is used.

WARNING

Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or may result in serious injury or death. Additionally there may be significant property damage.

Symbols

CAUTION

Symbol Meaning

Caution

Prohibition

Mandatory Caution

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage.

General Caution Indicates non-specific general cautions, warnings, and dangers.

Electrical Shock Caution

Indicates possibility of electric shock under specific conditions.

General Prohibition

Indicates non-specific, general prohibitions.

Disassembly Prohibition

Indicates prohibitions when there is a possibility of injury, such as from electric shock, as the result of disassembly.

General Caution

Indicates non-specific, general cautions, warnings, and dangers.

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Precautions

WARNING

Always provide protective circuits in the network. Without protective circuits, malfunctions may possibly result in accidents that cause serious injury or significant property damage. Provide double or triple safety measures in external control circuits, such as emergency stop circuits, interlock circuits, or limit circuits, to ensure safety in the system if an abnormality occurs due to malfunction of the product or another external factor affecting the product's operation.

Design the system to ensure safety in the event of temporary interruptions in communications due to interference with the electromagnetic waves used for communications caused by the ambient environment and application methods.

Do not use this product for real-time control.

Using the FA Wireless SS Terminal near a pacemaker or other medical device may affect the operation of the medical device, possibly resulting in serious injury. Never use the FA Wireless SS Terminal near pacemakers or other medical devices.

CAUTION

Make sure that the direction and polarity (+/−) are correct when connecting terminal blocks and connectors. Turning ON the power to I/O circuits with the I/O cables connected in reverse, may result in a blown output fuse.

Do not apply a voltage or connect a load to the outputs that exceeds the maximum switching capacity.

Leave the dustproof label attached to the Unit when wiring. Be sure to remove the label after the completion of wiring, however, to ensure proper heat dissipation. Removing the label during wiring or leaving the label attached after wiring may result in fire.

Do not allow pieces of metal, wire clippings, or fine metallic shavings or filings from installation to enter the product. Doing so may occasionally result in minor electric shock, fire, or malfunctions.

Do not attempt to disassemble, repair, or modify the product, or touch the internal parts of the product. Doing so may occasionally result in minor electric shock, fire, or malfunctions. In Japan, disassembly and modification is also prohibited under Japan's Radio Law and may be punishable by law.

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Precautions for Safe Use

Be sure to observe the following precautions to ensure safe use of the product.

1. Transport the product in the box in which the product was packaged, making sure the product is not subjected to excessive vibrations or shock, or dropped.

2. Store the product within the specified environment. Allow the product to warm up to room temperature for at least 3 hours after it has been stored at

−10°C or lower.

3. Use the product within the specified temperature and humidity ranges.

4. Do not use the product in the following locations.

• Locations subject to extreme temperature changes resulting in condensation

• Locations subject to static electricity, excessive noise, or electric fields

• Locations where the product may come into contact with water, oil, or chemicals

• Locations where corrosive gases or flammable gases are present

• Locations where large amounts of dust or dirt are present

• Locations subject to spatters, iron chips, or filings

5. Do not install the product outdoors (outside a control panel).

6. Use tape, cord, or other means to hold the product while adjusting the installation position to prevent the product from damage due to falling.

7. Do not install the product in areas where it will be subject to excessive external force, or in walkways.

8. Tighten the mounting screws to the specified torque of 0.5 to 0.6 N·m.

9. Provide sufficient space around the product for heat dissipation.

10. Do not install the product in walkways or locations subject to traffic when installing the product outside a control panel.

11. Do not reverse the power supply connection or connect the product to an AC power supply.

12. Use the correct power supply voltage.

13. Use AWG22 to AWG16 to connect wires for post terminals. For solid or stranded wires, however, use AWG20 to AWG16 (0.52 to 1.5 mm length of exposed wire is 10 mm.

14. Do not apply voltage to the inputs exceeding the rated voltage range.

15. Use communications cables (RS-232C cables) with a length of 15 m maximum and a load of 2,500 pF maximum.

). The

16. Do not lay communications cables (RS-232C cables) and antenna cables near other high-voltage cables or power lines.

17. Use the specified cables for communications cables (RS-232C cables).

18. Be sure to perform communications tests to confirm operation after wiring before using the product.

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19. Always set the product after it is installed or replaced. Set the product correctly according to the manual, and be sure to perform the tests provided with the product (e.g., communications tests) before operating it.

20. When operating the product without checking serial numbers, check whether an existing system is present, and design the system carefully to prevent radio interference.

21. Do not apply excess vibrations or shock to this product. Do not drop this product.

22. Make sure that wiring and switch settings are correct before starting operations.

23. Other wireless devices operating within the same frequency band may interfere with this product or be adversely affected by this product. Therefore, be sure to perform the tests provided with the product (e.g., installation tests) before operating it.

24. Make sure that the antenna is not disconnected during operation.

25. Do not use this product near other devices that may malfunction due to the electromagnetic waves emitted by this product.

26. Turn OFF the power supply before performing any wiring or replacing devices.

27. Do not touch the product with wet hands.

Precautions for Correct Use

Always heed these precautions to prevent faulty operation, malfunction, or adverse affect on the product's performance and functionality.

1. Communications performance will vary according to the operating environment. Always check operations before using the product.

2. Do not install the antenna in a location surrounded by metal, such as in a control panel.

3. Install the antenna so that it is as far away as possible from and not parallel to electric wires or metal plates.

4. Do not use this product in areas exposed to extremely high humidity, near televisions or radios, near motors or drills that emit sparks, near strong magnets, or near fluorescent lights.

5. Make sure that the terminal blocks, communications cables (RS-232C cables), and other items with locking devices are properly locked into place.

6. Do not pull or bend cables with force.

7. Do not change the mode selection switch during operation.

28. Dispose of the product as industrial waste.

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Package Contents

• WT30 FA Wireless SS Terminal

• Instruction Sheet

• Terminal labels (I/O Slave Stations only)

• Non-slip feet (Serial Master Stations only)

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Application Guide

Select the required communications configuration and refer to the relevant pages.

WT30 Basic Communications Configuration

The basic configuration uses 8 inputs and 8 outputs, or 16 inputs.

PLC

WT30-M01-FLK Serial Master station

I/O Slave station

64 max.

WT30-S@@@ I/O Slave station

Note Refer to Features . Select from either of two patterns of points for the input/

output terminals of the I/O Slave Station in a system configured using WT30. A maximum of 16 input terminals per station can be used.

Extending the Communications Distance Using Relay Function

Using Relay Stations

Extending Communications Distance

Switching Communications Path

I/O Slave Station

PLC PLC

WT30-M01-FLK Serial Master Station

Relay station (I/O Slave Station)

I/O Slave Station

WT30-S@@@

I/O Slave Station

1. Communications are not possible.

Note Refer to 4-1 Relay Function on page 60. The communications distance can be

extended by using an I/O Slave Station as a Relay Station.

WT30-M01-FLK Serial Master Station

2. Switch path.

I/O Slave Station

Relay station (I/O Slave Station)

3. Perform communications via relay station.

Relocation

WT30-S@@@ I/O Slave Station

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Communications between WT30 Terminals

Communications with Unregistered Slaves (No Scan List Registration)

Nodes can be added, changed, or moved.

I/O Slave Station No. 2

Communications are performed with specified I/O Slave Stations on the same frequency channel within the signal range. Scan list registration is not required, so I/O Slave Stations can be added and replaced using switch settings only. (See note 1.)

Communications with Registered Slaves (Scan List Registration)

PLC PLC

Serial Master Station

Unregistered

I/O Slave Station No. 1

I/O Slave Station No. 2

Communications are performed only with those I/O Slave Stations within the signal range with the same frequency channel and that are registered in the Serial Master Station. Select whether to register the serial number of the I/O Slave Station when registering it in the Serial Master Station. (See note 2.)

Serial Master Station

EEPROM

Registered

I/O Slave Station No. 1

I/O Slave Station No. 1 is registered in EEPROM.

Note 1. Refer to 3-4 Using Unregistered Communications Partners on page 42.

2. Refer to 3-5 Registering the Communications Partner on page 45.

Applied Functions

Communications Error Output Control

Serial Number Check Perform communications with a specific I/O Slave Station registered in the

Replacing WT30 Terminal s

Installation Methods Refer to page 22.

Available Frequencies Refer to page 105.

I/O Terminal Details Refer to page 28.

Select the status of output terminals if errors occur during wireless communications.

Note Refer to 3-6-6 Output Control for Communications Errors on page 56 under 3-

6 Function Setting Switch.

Serial Master Station including the serial number (the serial number is the product’s unique number).

Note Refer to 3-6-1 Scan List Registration on page 50 under 3-6 Function Setting

Switch.

Refer to page 73.

Useful Functions

Monitoring All Wireless Channels Automatically

Refer to page 38.

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Manual Outline

Outline of This Manual

Section 1 Introduction

This section explains the features of the WT30 Terminal, including the system configuration and the names and functions of parts.

Section 2 Hardware Installation and Connection

This section provides information on connection methods and precautions related to installation.

Section 3 Basic Settings

This section describes the procedures for making the WT30 settings and also provides information on the basic system configuration.

Section 4 Relay Function

This section provides information on the setting methods used to extend the communications distance.

Section 5 Troubleshooting and Maintenance

This section describes error processing, daily inspection, and troubleshooting and maintenance procedures needed to keep the wireless network operating properly. We recommend reading through the error processing procedures before operation so that operating errors can be identified and corrected more quickly.

Section 6 CompoWay/F

This section describes the CompoWay/F communications format and the variables that store the ON/OFF data and received signal strength readings.

Appendices

The appendices provide information on the WT30 specifications and optional accessories. .

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TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Precautions for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Application Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Manual Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

SECTION 1

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Nomenclature and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SECTION 2

Hardware Installation and Connection . . . . . . . . . . . . . . . . 13

2-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2-3 Wireless System Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SECTION 3

Basic Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3-1 Scan List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3-2 Monitoring Unused Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3-3 Setting Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3-4 Using Unregistered Communications Partners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3-5 Registering the Communications Partner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3-6 Function Setting Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

SECTION 4

Relay Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4-1 Relay Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4-2 Setting Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4-3 Using Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

SECTION 5

Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 67

5-1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5-2 Maintenance and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5-3 Replacing WT30 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

SECTION 6

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TABLE OF CONTENTS

CompoWay/F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

6-1 Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

6-2 List of Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6-3 Detailed Description of the Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6-4 Variable Area (Setting Range) List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6-5 Slave Station Entry Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6-6 Slave Station Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6-7 Slave Station Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

6-8 Number of Communications Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6-9 Slave Station Route Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6-10 Slave Station Output Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

6-11 Slave Station I/O Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

6-12 Serial Number Registration Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

6-13 CompoWay/F Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Appendices

Comparison between WT30 and WD30 . . . . . . . . . . 96

List of Supported Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Frequency Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

xvi

Page 20

SECTION 1

Introduction

This section describes the WT30 Terminal features, communications configuration, and part names and their functions.

1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-1-3 Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-2-1 WT30 Terminals: Serial Master Stations . . . . . . . . . . . . . . . . . . . . . 6

1-2-2 WT30 Terminals: I/O Slave Stations . . . . . . . . . . . . . . . . . . . . . . . . 10

Page 21

Fe at ur e s Section 1-1

1-1 Features

Information on systems using WT30 FA Wireless SS Terminals (also referred to as WT30 or WT30 Terminals in this manual) is provided here.

1-1-1 Overview

The WT30 System consists of a Serial Master Station and I/O Slave Stations. The Serial Master Station is a wireless terminal that collects ON/OFF data using wireless communications and is connected to a device with an RS232C interface (e.g., a personal computer or PLC). I/O Slave Stations with I/O terminals can also be connected to a DeviceNet-compatible WD30 Master.

Simple Relay Functions The relay functions enable an increase in the communications area. The

WT30 system supports a maximum of one relay stage using an I/O Slave Station as the Relay Station.

Install Multiple Sets in the Same Area

Advantage of Full Range of Channels

Easy Installation and Settings

I/O Slave Stations with Built-in I/O

High-level Security Wireless Communications

Determine Operating Status from the LED Display

Path Switching Function Communications will continue via the Relay Station even if communications

Antennas (Optional) Three antenna types are available: Magnet-base Antennas, Flat Antennas,

Changing frequencies removes interference between different sets installed in the same area. This enables you to construct a wireless system consisting of up to 10 sets (depending on the installation environment).

Supporting up to 67 channels, you can construct multiple systems without interference caused by intermodulation.

DIN Rail mounting makes installation easy. The system can be registered simply by setting the switches on the WT30 Terminal, so Support Software is not required.

I/O Slave Stations are available in three types: With 16 inputs (DC inputs), 8 inputs/8 outputs (DC inputs/transistor outputs), or with different output terminal polarity.

Registering the I/O Slave Station data (serial number and I/O size) in the Serial Master Station enables communications to be performed with specified I/O Slave Stations only.

The LED display on the WT30 Terminal can be used to check the WT30's error status, whether wireless communications are normal, and the received signal strength.

with the Serial Master Station and I/O Slave Station are unstable, or if the I/O Slave Station is removed.

and Pencil Antennas.

Compatible with Generalpurpose RS-232C Interface

Supported in OMRON Function Block Library for SYSMAC CS/CJ-series PLCs

A CompoWay/F command must be created to read (write) ON/OFF or other data. By using the OMRON Function Block Library, PLC users can reduce the amount of programming required.

The WT30 is supported the OMRON Function Block Library for SYSMAC CS/ CJ-series Programmable Controllers. The I/O Slave Station's input conditions, output controls, and wireless communications status can be read simply via the WT30-M01-FLK Serial Master Station connected to the PLC. Using the OMRON Function Block Library eliminates the need to create communications programs for the WT30, reduces the load on system startup and maintenance, and improves software quality through programming standardization. For details on the OMRON Function Block Library, refer to the OMRON FB Library Start-Up Guide (Cat. No. R123).

Page 22

Fe at ur e s Section 1-1

1-1-2 System Configuration

The Serial Master Station is connected to the PLC (Programmable Controller) or personal computer to perform ON/OFF data communications with the I/O Slave Stations. The I/O Slave Station can also be used as a Relay Station to select the path and extend the communications area.

Basic Configuration

Personal computer

PLC

RS-232C cable

N T

Serial Master Station

I/O Slave Stations

A N

T 2

N T

3 0

I D

1 6

A N

T 1

N T2

I D

64 max.

(total number of I/O

Slave Stations)

ON/OFF data

Device A Device B Device C

N T

I D

ON/OFF data

A N

T 2

Page 23

Fe at ur e s Section 1-1

Relay Configuration The communications area can be extended by using a Relay Station, and the

communications path can also be switched when the WT30 Terminals are moved due to layout changes.

Personal computer

PLC

RS-232C cable

The frequency channel is

Serial Master Station

A NT2

T 3

I D

N T1

A NT

3 0

0 1

always the same.

Relay station

(3) Perform communications

via the relay station.

(2) Switch the

path.

(1) Communications

are not possible.

64 max.

(total number of I/O

N T

3 0

I D

3 0

Relocation

T 2

I/O Slave Station

Slave Stations)

N T1

3 0

I D

A N

T 2

T 3

I D

A NT

N T

3 0

I D

N T

A NT

I D

ON/OFF data ON/OFF data ON/OFF data ON/OFF data ON/OFF data

Device A Device B Device C Device D Device E Device F

Page 24

Fe at ur e s Section 1-1

Connecting Multiple Serial Master Stations

The K3SC RS-232C/RS-485 Interface Converter can be used to configure a network requiring two or more Serial Master Stations (31 stations max.) or in environments in which communications are not possible even when Relay Stations are used in the system. Make sure that the Serial Master Stations are each allocated unique unit numbers and frequency channels. For details on wiring cables, refer to the operation manual provided with the K3SC Interface Converter.

PLC

RS-485 cable

K3SC Interface Converter

RS-232C cable RS-232C cable

N T

Serial Master Station Serial Master Station

I/O Slave Stations

N T

30-

L K

A different frequency channel is set for each Serial Master Station.

I/O Slave Stations

K3SC Interface Converter

N T

A N

T 2

T 30

M 01

31 max.

N T

A N

30-

I D

N T1

T 2

A N

T 2

I D

T 1

N T2

T 3

I D

64 max.

(total number of

I/O Slave Stations)

30-

I D

N T

3 0

I D

64 max.

(total number of I/O

Slave Stations)

ON/OFF data ON/OFF data ON/OFF data ON/OFF data ON/OFF data ON/OFF data

Device A Device B Device C Device D Device E Device F

1-1-3 Available Models

The following models are available in the WT30 Series according to the polarity (NPN/PNP) of the terminals and number of I/O points.

WT30 Terminal model Type Specifications

WT30-M01-FLK Serial Master

Station WT30-SID16 I/O Slave StaWT30-SMD16 8 DC inputs (NPN/PNP) + 8 transistor

tions

WT30-SMD16-1 8 DC inputs (NPN/PNP) + 8 transistor

Note The Antenna and Mounting Brackets are not included with the WT30 Termi-

nals.

RS-232C

16 DC inputs (NPN/PNP)

outputs (NPN)

outputs (PNP)

N T1

A N

T 2

3 0

I D

Page 25

Nomenclature and Functions Section 1-2

1-2 Nomenclature and Functions

1-2-1 WT30 Terminals: Serial Master Stations

Appearance

ANT1

ANT2

WT30-M01-FLK

Unit No. switch Set the unit number of the Serial Master Station. This is used for Host Link communications.

Node setting switch (WNODE)

Antenna terminal (ANT1)

Set the number of connected I/O Slave Stations.

Channel setting switch (WCH) Set the communications frequency.

Antenna terminal (ANT2)

Status indicators

Mode selection switch

Serial Communications Setting Switch Set the baud rate.

Power supply terminal Supply power to the Unit.

ANT1

PWR

MODE

RUN TEST SET

DC24V 0V

WT30-M01-FLK

COMM

MS WS

UNIT No.

W NODE W CH

123 4 5 6 7

x10 x1 x10 x1 x10 x1

RS-232C MODE

123 4 5 6 7 8 9

RS-232C

FUNCTION

ANT2

RSSI

ENTER

ON OFF

Received signal strength indicator

Special function switch

Function setting switch Make the detailed settings for RUN/TEST/SET mode.

RS-232C terminal Connect the PLC, personal computer, etc.

Settings

Unit No. Switch Set the unit number for the Serial Master Station. The setting is read when the

power is turned ON. The default is 00.

UNIT No.

X10

Page 26

Nomenclature and Functions Section 1-2

Node Setting Switch (WNODE)

Set the number of I/O Slave Stations connected to the Serial Master Station. The setting is read when the power is turned ON. The default is 01.

W NODE

Channel Setting Switch (WCH)

X10

Set the communications frequency. The setting is read when the power is turned ON. For details on frequencies, refer to Appendix F Frequency Table on page 105. The default is 02.

W CH

X10

Mode Selection Switch Set the operation mode of the Serial Master Station (three positions).

RUN

TEST

SET

Setting range: 01 to 34, 51 to 83

(The channels 01/51 cannot be used for this product in China.)

Switch setting Operation mode

RUN RUN mode TEST TEST mode SET SET mode

By switching the operating mode, a software reset is performed, and the set value (setting switch setting) is read.

Special Function Switch Use this switch to end operation during scan list registration or as a trigger to

return to the factory settings.

ENTER

ON OFF

Function Setting Switch Make the detailed settings for RUN/TEST/SET mode.

No. Applicable

mode

1 RUN mode Holds I/O status data when a

2 Enable scan list Disable scan list 3 Relays used Relays not used 4 TEST mode Signal strength monitor dis-

5 All channels automatically

6 --- --7 SET mode Scan list recognition Nothing done 8 Registers specified I/O Slave Registers all I/O Slaves

9 Recognizes serial numbers

10 Not used. --- ---

ON functions OFF functions

Clears I/O status data when communications error occurs.

a communications error

occurs.

Signal strength monitor abled

enabled

Specified channel selected selected

automatically

Ignores serial numbers (See note.)

Page 27

Nomenclature and Functions Section 1-2

Note The serial number indicates the product’s unique number.

Serial Communications Setting Switch

Note For example, if pin numbers 2, 3, and 4 are all ON, the total is 7, which corre-

Set the baud rate and other settings.

No. Function ON operation OFF operation

1 Communica-

tions setting selection

2 Baud rate (bps)

(See note.)

32 0

Tot a l v al u e

44 0

= 0: 1,200 = 1: 2,400 = 2: 4,800 = 3: 9,600 = 4: 19,200 = 5: 38,400 = 6: 57,600

= 7: 115,200 5 Data length 8 bits 7 bits 6 Parity None Yes 7 Odd Even 8 Stop bits 1 bit 2 bits

Detailed settings (settings for No. 2 to 8 used)

Default settings (baud rate: 9,600 bps; data length: 7 bits; parity: even; stop bits:

2) Settings for No. 2 to 8 are ignored.

sponds to a baud rate of 115,200 bps.

Power Supply Terminal Supplies 24-VDC (allowable voltage range: 20.4 or 26.4 VDC) power to the

WT30 Terminal. The terminal construction uses a screwless terminal block (Phoenix Contact: FFKDS/V1-5.08 or equivalent).

RS-232C Terminal The serial terminal construction uses D-sub, 9-pin (female) inch screws

(OMRON XM2F-0910-132 or equivalent)

Antenna Terminal Install an Antenna on both the right and left sides. Always use two Antennas.

Display

Status Indicators for Serial Master Station

(1) (2) (3) (4) (5)

RSSI

PWR COMM MS WS

Indicator Color Status Meaning (primary error)

(1) PWR Green Lit Power is being supplied.

Not lit Power is not being supplied.

(2) COMM Yellow Lit Serial communications in progress.

Not lit No serial communications.

(3) MS

(Module Status)

Red Lit A fatal error has occurred that cannot be recovered from, such as a

watchdog timer error, EEPROM, or hardware error. Replace the WT30 Terminal.

Flashing A non-fatal error, illegal switch settings, or EEPROM checksum error

has occurred that can be recovered from by resetting the system.

Green Lit Communications are normal.

Flashing TEST mode or SET mode has been activated.

--- Not lit Power is not being supplied or the system is resetting.

Page 28

Nomenclature and Functions Section 1-2

Indicator Color Status Meaning (primary error)

(4) WS

(Wireless Status)

(5) RSSI (See note 2.)

(Received Signal Strength Indicator)

Red Lit A fatal wireless communications error or code sense error has

occurred.

Flashing A non-fatal wireless communications error or verification error (slave

station I/O size mismatch) has occurred, or the slave is not registered.

Green Lit RUN mode: Connection to wireless communications is completed or

remote I/O communications are in progress. SET mode: Scan list creation completed.

Flashing RUN mode: There is no wireless communications connection or there

are no slaves participating in remote I/O communications. TEST mode: The received signal strength is being monitored. SET mode: Scan list is being created.

--- Not lit Wireless communications are not in progress. Red/yellow/

green

0 to 9 lit Displays the received signal strength in 10 levels. The field strength is

determined by the number of indicators lit: weak for a small number and strong for a large number.

Green Flashing Special function operation has completed.

Note (1) For details on troubleshooting, refer to 5-1 Troubleshooting on page 68.

(2) The RSSI can be used to confirm the operation status.

Red indicators Yellow indicators Green indicators

Field strength

Number of indicators lit

RUN mode

Test mode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

Range in which specified channel cannot be used.

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

Page 29

Nomenclature and Functions Section 1-2

pply p

1-2-2 WT30 Terminals: I/O Slave Stations

Appearance

ANT1

ANT2

WT30SID16

(WT30-SID16)

Status indicators

Mode selection switch

Settings

Node Setting Switch (WNODE)

Antenna terminal (ANT1)

ANT1

PWR E RR

MODE

RUN TEST SET

WT30SID16

Power supply terminal Su

ower to the Unit.

Set the node number of the I/O Slave Station (64 max.). The setting is read when the power is turned ON. After the power is turned ON, any changes to the switch setting are ignored. The setting for WT30 Terminals used as Relay Stations is always 99. The default is 01.

Node setting switch (WNODE) Set the node number of the I/O Slave Station.

I/O terminal status indicators (0 to 7 or 8 to 15) The contact status is displayed.

0 1 2 3 4 5 6 7

8 9 10 1 1 12 1 3 14 1 5

W NODE W CH

123 4 5 6 7 8 9

IN IN

FUNCTION

x10 x1 x10 x1

V G 0 1 2 3 COM 4 5 67 COM ERRP

0V 8 9 1 0 11 COM 12 13 14 15 COM ERRN

DC24V

I/O terminals Connect the contact signals.

Channel setting switch (WCH) Set the communications frequency.

Antenna terminal (ANT2)

ANT2

RSSI

ENTER

Received signal strength indicato

Special function switch

OFF

Function setting switch Make the detailed settings for RUN/TEST/SET mode.

W NODE

X10

Page 30

Nomenclature and Functions Section 1-2

Channel Setting Switch (WCH)

Set the communications frequency. For details on frequencies, refer to Appendix F Frequency Table on page 105. The default is 02.

W CH

X10

Mode Selection Switch Set the operation mode of the Serial Slave Station (three positions).

RUN

TEST

SET

By switching the operating mode, a software reset is performed, and the set value (setting switch setting) is read.

Special Function Switch Use this switch to clear the recorded signal strength or to return to the factory

settings.

ENTER

Setting range: 01 to 34, 51 to 83

(The channels 01/51 cannot be used for this product in China.)

Switch setting Operation mode

RUN RUN mode TEST TEST mode SET SET mode

ON OFF

Power Supply Terminals Supplies 24-VDC (allowable voltage range: 20.4 or 26.4 VDC) power to the

WT30 Terminal. The terminal construction uses a screwless terminal block (Phoenix Contact: FFKDS/V1-5.08 or equivalent).

I/O Terminals Connect the I/O contact signals.

Antenna Terminal Install an antenna on both the right and left sides. Always use two antennas.

Function Setting Switch Make the detailed settings for I/O Slave Station operations in RUN mode,

TEST mode, and SET mode.

No. Mode ON functions OFF functions

1 RUN mode Holds I/O status data when a

communications error

occurs. 2 Input hold Normal mode 3 Input filter: 100 ms Input filter: 10 ms 4 TEST mode Signal strength monitor dis-

abled 5 All channels automatically

selected 6 Installation test function Nothing done. 7 to 10Not used. --- ---

Clears I/O status data when a communications error occurs.

Signal strength monitor enabled

Specified channel selected

Page 31

Nomenclature and Functions Section 1-2

(3) (4)

Display

Status Indicators for I/O Slave Stations

(1) (2)

0 1 2 3 4 5 6 7

8 9 10 1 1 12 13 14 15

PWR ERR

Indicator Color Status Meaning (primary error)

(1) PWR Green Lit Power is being supplied.

Not lit Power is not being supplied.

(2) ERR Red Lit Error output is ON: Wireless device error, wireless communications

error, or host network error has occurred preventing normal I/O communications.

Not lit Error output is OFF: Causes of the above conditions have been

removed.

(3) MS

(Module Status)

Red Lit A fatal error has occurred that cannot be recovered from, such as a

watchdog timer error, EEPROM error, or hardware error. Replace the WT30 Terminal.

Flashing A non-fatal error, illegal switch settings, or EEPROM checksum error

has occurred that can be recovered from by resetting the system.

Green Lit Communications are normal.

Flashing TEST mode or SET mode has been activated.

--- Not lit Power is not being supplied or the system is resetting.

(4) WS

(Wireless Status)

Red Lit A fatal wireless communications error has occurred, or duplicate wire-

less node addresses have been set.

Flashing A non-fatal communications error, disconnection, or communications

timeout has occurred.

Green Lit RUN mode: Connection to wireless communications is completed.

Flashing RUN mode: Wireless communications not connected.

TEST mode: Received signal strength monitoring in progress.

--- Not lit No wireless communications

(5) RSSI (See note 2.)

(Received Signal Strength Indicator)

Red/yellow/ green

0 to 9 lit Displays the received signal strength in 10 levels. The field strength is

determined by the number of indicators lit: weak for a small number and strong for a large number.

Green Flashing Special function operation has completed.

(6) 0 to 15 Yellow Lit/not lit Input or output signal ON/OFF status (0 to 7, 8 to 15)

(5)(6)

RSSI

Field strength

Number of indicators lit

RUN mode

TEST mode

Field strength monitor test

Installation/confirmation test

Note (1) For details on troubleshooting, refer to 5-1 Troubleshooting on page 68.

(2) The RSSI can be used to confirm the operation status.

Red indicators Yellow indicators Green indicators

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

Range in which specified channel cannot be used.

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

Page 32

Hardware Installation and Connection

This section provides information on connection methods and precautions related to installation.

2-1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-1-1 Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-1-2 Installation Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-1-3 Determining the Antenna Installation Position. . . . . . . . . . . . . . . . . 14

2-1-4 Flat Diversity Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2-1-5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2-1-6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-2 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2-2-1 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2-2-2 Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2-2-3 WT30 Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2-2-4 I/O Terminal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2-3 Wireless System Design Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2-3-1 Construction of Multiple Wireless Systems . . . . . . . . . . . . . . . . . . . 32

2-3-2 Communications Errors Caused by Intermodulation . . . . . . . . . . . . 33

2-3-3 Serial Master Station Input/Output Data . . . . . . . . . . . . . . . . . . . . . 33

SECTION 2

Page 33

Installation Section 2-1

2-1 Installation

Make sure that the radio wave conditions at the installation site are favorable before actually installing the WT30 Terminals.

2-1-1 Installation location

Do not install this device in locations such as the following:

• Areas exposed to direct sunlight

• Areas with extremely high humidity

• Near devices such as televisions, radios, and computers

• Near devices that emit sparks, such as motors, drills, and welding equipment

• Near strong magnets

• Near fluorescent lights

• Inside metal panels or locations surrounded by metal or concrete

If the WT30 Terminal is installed in a metal panel, be sure to mount the entire Antenna outside the panel where there are no interfering objects.

2-1-2 Installation Precautions

• Install the Antennas for the Serial Master Station and I/O Slave Stations or the Relay Stations and I/O Slave Stations in parallel.

• Install the Antennas as far away as possible from and not parallel to electric wires or metal panels.

• Use wood screws when installing the WT30 on a wooden surface.

• Use M4 screws for installation if the provided installation screws are not used.

• Communications are not possible if the Terminals is too close to each other (within 1 m). Make sure that sufficient distance is provided between WT30 Terminals.

2-1-3 Determining the Antenna Installation Position

The WT30 uses radio waves with a frequency of 2.4 GHz, which is very high. High-frequency waves exhibit strong rectilinear propagation and are reflected easily. For this reason, careful consideration of the Antenna installation position is required to achieve optimum wireless performance.

1,2,3... 1. If possible, install Antennas so that there is a direct line of sight between

them. High-frequency waves, which exhibit strong rectilinear propagation, are used and so it is difficult for the waves to reach areas that are not in a direct line of sight, as shown in the following diagram. This is a particularly important point for communications at long distances (e.g., exceeding 50 m or 60 m.)

Transmitting Antenna

Area not in a direct line of sight from the Antenna

Obstacle

Antenna that is difficult for the waves to reach

Antenna that waves will reach

Page 34

Installation Section 2-1

If the Antennas are installed in locations with relatively high ceilings and a lot of open space, even if there is no direct line of sight between the Antennas, if one of the Antennas is installed in a high location, communications may still be possible via radio waves that are reflected off the ceiling.

2. Install in as high a location as possible. As mentioned in the preceding paragraph, if the Antennas are installed in high locations, because the space surrounding the Antennas will be more open, there will be less influence from obstacles, and the radio waves will propagate more easily.

High Antenna

Radio wave energy

Obstacle

3. Do not place obstacles (especially metal objects) near the Antennas. If there are obstacles near the Antennas (in particular, in the direction of radio wave propagation), the radio waves may not be propagated due to the influence of the objects. Metal objects have the greatest influence as they reflect radio waves, whereas glass and plastic objects allow the waves to pass through and so have the least influence. Be sure to install Antennas at least 30 cm away from any obstacles.

4. Cable Loss in Magnet-base Antennas Loss occurs in the cable when using WT30-AT001 Magnet-base Antennas. Therefore, the maximum communications distance is approximately 50 m indoors, which is shorter than for Pencil Antennas.

5. Cable Bending Radius The minimum bending radius for WT30-AT001 Magnet-base Antennas is 38 mm. Also, do not bend the cable at points less than 34 mm from the end connected to the WT30 Terminal or at points less than 40 mm from the end connected to the Antenna. The minimum bending radius for WT30-AT002 Flat Diversity Antennas is 50 mm. Also, do not bend the cable at points less than 23 mm from the end connected to the WT30 Terminal or at points less than 20 mm from the end connected to the Antenna.

Cable Bending Radius and Dimensions

R38

WT30-AT001

Magnet-base Antenna

WT30-AT002

Flat Diversity Antenna

R50

(Unit: mm)

Page 35

Installation Section 2-1

6. Separate different sets of Antennas as much as possible. If different sets of Antennas are close to each other, they will influence each other and thereby influence wireless communications, causing an increase in the number of retries, and a reduction in the possible communications distance. Separate different sets of Antennas by at least 2 m if possible.

7. Do not install the two Magnet-base Antennas close to each other. If the two Antennas are close to each other, the diversity effect will not be utilized. Magnet-mounting allows the positions to be adjusted easily. If possible, separate the Antennas by an even greater distance.

8. Install the Antennas with the same orientation. Install Antennas that are performing communications with the same orientation, as shown in the following diagram. Install Flat Diversity Antennas in the same way. If they are installed at an angle of 90 sible communications distance will be shortened.

° to each other, the pos-

9. Separate the Antennas from ID Tags by at least 3 m. The OMRON V690 Microwave RFID System uses frequencies within the range used by the WT30 Terminals. Therefore, if the two systems are used on the same floor, observe the following points when installing the systems.

• Separate the Antennas and ID Tags by at least 3 m.

• Set the frequency to a channel other than channels 12 to 30 or channels 62 to 79.

10. Direction of Waves Emitted from Magnet-base Antennas Antennas emit waves in certain directions, and there are certain directions in which waves are received easily. These directions are known as the “directional characteristics.” The directional characteristics for Pencil Antennas and Magnet-base Antennas when they are installed vertically are donut-shaped, spreading outwards horizontally. Radio waves are emitted in every horizontal direction but are not emitted upwards or downwards. Radio wave emissions from the tip of the Antenna are low, so the communications distance will be shortened if the tips of the Antennas for both the WT30 Terminals are installed facing each other.

Page 36

Installation Section 2-1

(

Radio Wave Emission Pattern

(Actual Measurements)

270˚

Side View

240˚

210˚

300˚

330˚

Overhead View

180˚

150˚

120˚

Antenna

Area that waves will reach

90˚

60˚

-40-50-60

2.45 GHz

30˚

-30

0˚

11. Other Points about Magnet-base Antennas

• The magnet on the Magnet-base Antenna is very strong. Do not remove the Antenna by pulling on the cover or cable. Doing so may damage the Antenna. Always hold the base when handling the Antenna.

• Twist the cable as little as possible.

• Design the hole for passing the cable through so that the cable is protected.

12. Direction of Waves Emitted from Flat Diversity Antennas Flat Diversity Antennas also have directional characteristics, in the same way as Magnet-base Antennas.

270˚

240˚

300˚

Direction of Radio Wave Emissions

Visualization)

210˚

180˚

150˚

120˚

90˚

2.45 GHz

Radio Wave Emission Pattern (Actual Measurements)

60˚

330˚

0˚

-40-50-60

-30

30˚

Page 37

Installation Section 2-1

13. Do not subject the Antenna to shock. Do not install the Antenna in a location in which it may be hit by other objects. If installation in such a location is required, take sufficient measures to protect the Antenna. Subjecting the Antenna to strong shock may cause either external or internal damage to the Antenna. Internal damage that is not necessarily externally visible may prevent communications, such as broken wires.

2-1-4 Flat Diversity Antennas

Secure the Flat Diversity Antenna to the Mounting Bracket with screws. The Mounting Bracket includes a magnet for attachment to metal surfaces. Do not tighten the vertical and horizontal angle adjustment knobs at first to allow adjustment of the Antenna position and angle. After adjusting to the correct position, tighten the knobs securely.

M3 screws

Magnet

Adjustment knob for vertical angle

WT30-FT011 Flat Diversity Antenna Mounting Bracket

Vertical angle

Horizontal angle

Magne

Adjustment knob for horizontal angle

Page 38

Installation Section 2-1

2-1-5 Dimensions

WT30 FA Wireless SS Terminals

Serial Master Station

(Unit: mm)

105

8.1 40 8.9

I/O Slave Station (Example: WT30-SID16)

7.3

ANT1

PWR

MODE

RUN TEST SET

WT30-M01-FLK

ANT1

PWR ERR

MODE

RUN TEST SET

VG0123

DC24V

COMM

UNIT No.

W NODE W CH

x10 x1 x10 x1 x10 x1

123 4 5 6 7

RS-232C

123 4 5 6 7 8 9

MODE

105

0 1 2 3 4 5 6 7

8 9 10 11 12 13 14 15

W NODE W CH

x10 x1 x10 x1

123 4 5 6 7 8 9

COM

4567

0V 8 9 10 11

COM

12 13 14 15

FUNCTION

COM ERRP COM

ANT2

RSSI

ENTER

ON OFF

WT30-FT001 or WT30-FT002 DIN Rail Mountin

ANT2

RSSI

ENTER

ON OFF

ERRN

Bracket

(Unit: mm)

8.1 40 8.9

7.3

WT30SID16

WT30-FT001 or WT30-FT002 DIN Rail Mountin

Bracket

Page 39

Installation Section 2-1

With Antenna Installed (Same for Serial Master Station and Slave I/O Stations)

Cable Bending Angle and Dimensions

150

8.1

(Unit: mm)

8.9

R38

WT30-AT001

Magnet-base Antenna

R50

WT30-AT002

Flat Diversity Antenna

WT30-AT003

Pencil Antenna

WT30-FT001 or WT30-FT002

DIN Rail Mounting Bracket

Magnet-base Antenna Flat Diversity Antenna

WT30-AT001

(Unit: mm)

WT30-AT002

57.5

(Unit: mm)

Three, 3 dia.

115

35.8 dia. 39

13.3

2010

10.5 dia.

57.5

10.5 dia.

2010

Page 40

Installation Section 2-1

Pencil Antenna

WT30-AT003

(Unit: mm)

12 dia.

Flat Diversity Antenna Mounting Bracket

WT30-FT011

(Unit: mm)

Magnet

15 15

60.5 36

Page 41

Installation Section 2-1

2-1-6 Installation

The WT30 Terminal can be installed either by standing it on a table top, fixing it with screws, or mounting it to a DIN Rail. When fixing with screws, mount the WT30 Terminal to the L-shaped Surface Mounting Bracket before mounting to a panel or other surface.

Table-top Mounting Attach the adhesive non-slip feet to the bottom of the Serial Master Station

and stand the Serial Master Station on a flat surface.

Adhesive non-slip feet

Using an L-shaped

Holes are required for mounting with L-shaped Brackets.

Bracket

Mounting Hole Dimensions (Unit: mm)

120

Surface Mounting Bracket

Mounting Hole Dimensions (Unit: mm)

Mounting hole

ANT1

ANT2

WT30-M01-FLK

Surface Mounting Bracket

Serial Master Station

Mounting hole

WT30-

120

Surface Mounting Bracket

SID16

Surface Mounting Bracket

I/O Slave Station

Tighten the WT30 mounting screws using the specified torque of 0.5 to

0.6 N·m.

Page 42

Installation Section 2-1

Using a DIN Rail Do not install the WT30 in a metal panel when using a Pencil Antenna. Doing

so will decrease the wireless performance significantly. To install the WT30 in a panel, use either a Magnet-base Antenna or Flat Antenna and install the Antenna on the outside of the panel. Refer to Appendix D Optional Accesso- ries on page 101.

Insert spring

A (1) Insert the end of section

A into the base of the Adapter.

Suitable

DIN Rails

Two types of suitable DIN Rail are available. Both have a width of 35 mm. The height is either 7.5 mm or 15 mm (conform to DIN, EN, IEC, and JIS C2812 standards).

Model DIN Rail Specifications

WT30-FT001 TH35-7.5 Rail width: 35 mm, Height: 7.5 mm WT30-FT002 TH35-15 Rail width: 35 mm, Height: 15 mm

Mounting the

(3) Position the Adapter on

the WT30 and secure with screws.

DIN Rail Adapter

DIN Rail Dimensions (Unit: mm)

No burrs

Part A

35±0.3

0.3 max.

TH35-7.5 Part A Detail

7.5

-0.4

TH35-15 Part A Detail

1±0.04

15˚

(2) Pull section A to the right

and lower while compressing the spring.

Mounting Method

Tighten the WT30 mounting screws using the specified torque of 0.5 to

0.6 N·m.

Hook the top of the

(1)

WT30 over the DIN Rail.

DIN Rail

(2)

Dust-proof Label Remove the dust-proof label after mounting.

ANT1

T 3

ANT2

Page 43

Connections Section 2-2

Removal Method

ANT1

COMM

PWR

MODE

RUN TEST SET

DC24V 0V

WT30-M01-FLK

Insert a flat-blade screwdriver or other tool into the lower hook and pull down.

2-2 Connections

2-2-1 Cable Connections

WT30 (Serial Master Station)

Connect the Serial Master Station to the PLC or personal computer using RS232C cable. If the WT30 is installed in a location subject to frequent vibration, secure the RS-232C cable close to the connector so that force will not be applied to the connector.

ANT1

PWR

MODE

RUN TEST SET

WT30-M01-FLK

MS WS

UNIT No.

W NODE W CH

x10 x1 x10 x1 x10 x1

RS-232C

123 4 5 6 7 8 9

123 4 5 6 7

FUNCTION

MODE

RS-232C

COMM

MS WS

UNIT No.

x10 x1 x10 x1 x10 x1

RS-232C

123 4 5 6 7

MODE

DC24V 0V

ANT2

RSSI

ENTER

ON OFF

W NODE W CH

123 4 5 6 7 8 9

RS-232C

Unhook the WT30

(2)

from the DIN Rail.

DIN Rail

Pull the bottom side

(1)

forwards.

54321

ANT2

RSSI

ENTER

OFF

FUNCTION

9876

D-sub, 9-pin Female End at WT30

Pin No.

Signal

---

I/O direction

---

Output

Input

---

1 2 3 4 5 6 7 8 9

RS-232C cable

Connected to PLC or personal computer

Page 44

Connections Section 2-2

Serial Connection Example 1

The serial setting for the personal computer is set to no flow control.

Personal computer

D-sub, 9-pin, Female End

Signal Pin No. CD 1 RD 2 SD 3 ER 4 SG 5 DR 6 RS 7 CS 8 RI 9

RS-232C

cable

D-sub, 9-pin, Male End

Signal Pin No. 1 RD 2 SD 3 4 SG 5 6 7 8 9

N T

3 0

0 1

WT30

The connections indicated by dotted lines are used with the recommended cables, but are not a problem for operation.

Recommended Cables

Model Cable length

XW2Z-0100U-3 1 m XW2Z-0200U-3 2 m XW2Z-0500U-3 5 m

Serial Connection Example 2

If the serial setting for the personal computer cannot be set to no flow control, prepare the cables short-circuiting pins 4 and 6, and pins 7 and 8.

A N

T 2

Personal computer

D-sub, 9-pin, Female End

Signal Pin No. CD 1 RD 2 SD 3 ER 4 SG 5 DR 6 RS 7 CS 8 RI 9

RS-232C

cable

D-sub, 9-pin, Male End

Signal Pin No. ޓ 1 RD 2 SD 3 ޓ 4 SG 5 ޓ 6 ޓ 7 ޓ 8 ޓ 9

T 1

F L

WT30

A N

Page 45

Connections Section 2-2

Serial Connection Example 3

The serial setting for the OMRON PLC is set to no flow control.

PLC

D-sub, 9-pin, Female End

Signal Pin No. 1 SD 2 RD 3 RS 4 CS 5 6 7 8 SG 9

RS-232C

cable

D-sub, 9-pin, Male End

Signal Pin No. 1 RD 2 SD 3 4 SG 5 6 7 8

T 1

-F L

WT30

The connections indicated by dotted lines are used with the recommended cables, but are not a

roblem for operation.

Recommended Cables

Model Cable length

XW2Z-0200U-5 2 m XW2Z-0500U-5 5 m

When connecting to CS/CJ-series set the communications ports on the PLC side as shown in the following table.

Communications Settings: User Settings (User-specified Settings)

Item name Set value Connecting to a WT30 with

initial settings

Serial communications mode

Parameters Data length

Stop bits Parity

Baud rate Matches the communications

Send delay time Sets a user-specified time

CTS control Sets a user-specified time

Response timeout monitoring time

Serial Gateway Serial Gateway

Matches the communications settings of the WT30 Terminal.

Data length: 7 bits Stop bits: 2 Parity: Even

9,600 bit/s settings of the WT30 Terminal.

Same (Default: None) Note: The communications port of the CPU Unit cannot be set.

Sets a user-specified time

Same (Default: 5 s)

A N

2-2-2 Wiring Precautions

• Wire the signal lines separately from power lines to prevent noise interference.

• Do not lay wiring close to the Antenna.

• Turn OFF the power before performing any wiring.

Page 46

Connections Section 2-2

• Wire the terminals using the following post terminals and cables.

Length of exposed wire Cable (AWG22 to AWG16)

single/stranded wire (0.32 to 1.5 mm

)

Use a tool of the appropriate size to crimp the post terminal. Make an incision in the cable and remove the covering so that the cable is either the same length as or approximately 0.5 mm longer than the post terminal, as shown in the following diagram. Make sure that no stray wires are protruding and the post terminal is not damaged.

10 mm

Correct Example

Incorrect Example

Stray wire

0 to 0.5 mm

Surface damage

Insufficient length removed

Manufactured by Phoenix Contact

Post terminal

AWG22 AI 0.34-12

AWG20 AI 0.5-10

AWG18 AI 0.75-10,

AI 1-10

AWG16 AI 1.5-10

Crimping tool

CRIMPFOX ZA3

Insert a screwdriver into the screwless terminal block as shown in the following diagram, and keeping the screwdriver inserted, insert the post terminal. Use the same procedure to remove the post terminal. Secure the wiring close to the connector to prevent direct force from being applied to the wiring due to twisted cables or the weight of the cables.

Dust-proof Label Remove the dust-proof label after completing wiring.

Attaching Terminal Labels (I/O Slave Stations Only)

Attach terminal labels inside the switch cover to the positions shown in the following diagram.

ANT1

PWR ERR

MODE

RUN TEST SET

0 1 2 3 4 5 6 7

8 9 10 11 12 13 14 15

W NODE W CH

x10 x1 x10 x1

123 4 5 6 7 8 9

RSSI

FUNCTION

ENTER

ANT2

ON OFF

2-2-3 WT30 Power Supply Wiring

The power supply voltage for WT30 Terminals is 24 VDC.

Page 47

Connections Section 2-2

Error output power supply

DC24V

Power supply voltage 24 VDC Allowable voltage range 20.4 to 26.4 VDC

WT30 Terminals require a 24-VDC power supply. Provide a power supply of at least 15 W, considering the inrush current generated at startup. An OMRON Switching Power Supply Unit is recommended. Refer to Appendix B List of Supported Devices on page 97 for details.

2-2-4 I/O Terminal Wiring

WT30-SID16 Input Unit

VG 0 1 2 3

0123

Inputs

COM

4567

COM COM

45 67

InputsPower supply

COM ERRP

ERRN

Input Characteristics

Error Output Characteristics

Item Specifications

Input voltage 24 VDC Allowable voltage range 20.4 to 26.4 VDC Input impedance 4.7 kΩ (typical) Input current 5 mA (typical) ON voltage/current character-

17.4 VDC, 3.0 mA min.

istics OFF voltage/current charac-

5.0 VDC, 1.0 mA max.

teristics Input filter 10 ms/100 ms (Selected using switch.)

Item Specifications

Input voltage 24 VDC Allowable voltage range 20.4 to 26.4 VDC Max. switching current 100 mA max. per output (at 20.4 to 26.4 VDC)

Simultaneous usage of error output NPN/PNP is not

possible. Leakage current 0.1 mA max. Residual voltage 1.0 V max. Fuse One for every two outputs except for error output cir-

cuits, which have one for every NPN/PNP output. (No

fuses can be replaced by the user.)

Page 48

Connections Section 2-2

)

Input Circuit Diagram

Error output power supply

VG 0 1 2 3

DC24V

0123

Power suppl

Inputs

COM

4567

COM COM

45 67

uts

WT30-SMD16(-1) I/O Slave Stations

Output/Error Output Characteristics

Input voltage 24 VDC Allowable voltage range 20.4 to 26.4 VDC Max. switching current 100 mA max. per output (at 20.4 to 26.4 VDC)

Leakage current 0.1 mA max. Residual voltage 1.0 V max. Fuse One for every two outputs except for error output cir-

Error output (PNP)

COM ERRP

Secondary internal circuit

ERRN

Error output (NPN

Item Specifications

Simultaneous usage of error output NPN/PNP is not

possible.

cuits, which have one for every NPN/PNP output. (No

fuses can be replaced by the user.)

IN 0

IN 1

IN 2

IN 15

COM (IN)

Error output/output power supply

Error output/output power supply Inputs Error output (PNP)

VG 0 1 2 3

DC24V

0123

COM

4567

COM COM

45 67

COM ERRP

ERRN

Power supply Outputs Error output (NPN)

With WT30-SMD16 NPN outputs, the output COM terminal (lower level) is internally connected to the V terminal. When the error output ERRN terminal is used, the COM terminal on the output side can be shared. The polarity of PNP outputs is opposite from that of the error output ERRP terminal, and therefore the common cannot be shared. With WT30-SMD16-1 PNP outputs, the output COM terminal (lower level) is internally connected to the G terminal. When the error output ERRP terminal is used, the COM terminal on the output side can be shared. The polarity of NPN outputs is opposite from that of the error output ERRN terminal, and therefore the common cannot be shared.

Page 49

Connections Section 2-2

NPN Output Circuit Diagram PNP Output Circuit Diagram

Fuse

Secondary internal circuit

Fuse

Error Output Circuit Diagram

Fuse

ERRP

V OUT 0

OUT 1

OUT 2

OUT 7

Secondary internal circuit

Fuse

OUT 0

OUT 1

OUT 2

OUT 3

OUT 7 G

Connecting to Input Devices

Fuse

ERRN

Secondary internal circuit

Input Device with Contact Output

WT30

INOutput

COM

Internal circuits

Input Device with NPN Open-collector Output

WT30

Internal circuits

Output

0 V

Sensor power supply

COM

Page 50

Connections Section 2-2

Input Device with Voltage Output

Sensor power supply

Output

Sensor circuits

0 V

Input Device with NPN Output

Internal circuits

0 V

Input Device with PNP Output

Sensor power supply

Sensor circuits

Output

0 V

WT30

COM

WT30

INOutput

COM

WT30

COM

Connecting to Output Loads

PNP Output

Load

NPN Output

Load

WT30

OUT (P)

COM

WT30

COM

OUT (N)

Page 51

Wireless System Design Considerations Section 2-3

Connecting to Error Output

PNP Output

Load

WT30

ERRP

NPN Output

WT30

Load

ERRN

2-3 Wireless System Design Considerations

2-3-1 Construction of Multiple Wireless Systems

When constructing a system for using multiple Serial Master Stations, the following points must be considered. Consult your OMRON representative.

Setting Wireless Channels Frequencies that are not interfered with by radio waves must be selected for

the wireless channels. (Radio interference can be handled by retry processes between the wireless networks, but will lengthen the system response time.)

The WT30 supports 67 wireless channels from which to select. As a rough guide, however, a maximum of 10 wireless systems can be used in a single area without radio interference on account of the following considerations.

1,2,3... 1. Do not select neighboring wireless channels as they have a large amount

of interference.

2. Due to the fundamental nature of radio waves, if two or more waves with different frequencies are output at exactly the same time, mutual interference will occur between the different frequencies, and new waves will be generated with frequencies at intervals equal to the intervals between the output frequencies. (This phenomenon is called intermodulation.) For example, if channels 5 and 9 are used, electromagnetic interference will be generated with channels 1 and 13, as shown in the following diagram. In this case, channels 2 and 14 can be used, but the frequency of channel 51 is located between the frequencies for channels 1 and 2, and the frequency of channel 63 is located between the frequencies for channels 13 and 14. Therefore, the channel with the frequency following channel 1 is channel 51. Channels 5, 9, 51, and 63 can be used without interference. For details on frequencies, refer to Appendix F Frequency Ta- ble on page 105.

Page 52

Wireless System Design Considerations Section 2-3

1 - (f2 - f1) = Channel 1

Radio wave created by intermodulation

Serial Master

Station

I/O Slave Station

Channel 51

f1 = Channel 5 f2 = Channel 9

Serial Master

Station

I/O Slave Station

Channel 63

2 + (f2 - f1) = Channel 13

Radio wave created by intermodulation

Do not select the frequencies of radio waves created by intermodulation.

Antenna Separation Distance

The distance between WT30 Terminals has a large influence on the amount of interference received. In particular, there may often be cases where Serial Master Stations are installed relatively closely to each other. Separate the Antennas for different Serial Master Stations by at least 2 m if possible.

Test Confirmation Perform a test to see whether or not the WT30 Terminals are receiving inter-

ference. Use the RSSI (Received Signal Strength Indicator) on both the Serial Master Station and I/O Slave Station to check the interference.

Frequenc

2-3-2 Communications Errors Caused by Intermodulation

Communications errors and retry processing may occur due to intermodulation resulting in transmission delays. To eliminate the influence of intermodulation, do not set the wireless channels for WT30 Terminals in every system to frequencies at regular intervals.

2-3-3 Serial Master Station Input/Output Data

The Serial Master Station’s input/output data is cleared by turning OFF the power. After turning ON the power, an output signal of all zeros (OFF) is sent to the output of the I/O Slave Stations from the Serial Master Station.

(1) At power OFF: All I/O data cleared.

Serial Master Station

3 0

A N

F L

(2) AT power ON: Sends all "0" output signal.

I/O Slave Station

A N

N T

(3) Output signal: All "0"

Intermodulation

Due to the fundamental nature of radio waves, if two or more waves with different frequencies are output at exactly the same time, mutual interference will occur between the different frequencies, and new waves will be generated with frequencies at intervals equal to the intervals between the output frequencies.

Page 53

Wireless System Design Considerations Section 2-3

Page 54

SECTION 3

Basic Settings

This section describes the procedures for making the WT30 settings and also provides information on the function settings.

3-1 Scan List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3-2 Monitoring Unused Frequencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3-2-1 Wireless Channel Monitor for Specified Channels . . . . . . . . . . . . . 37

3-2-2 Monitoring All Wireless Channels . . . . . . . . . . . . . . . . . . . . . . . . . . 38

3-2-3 Clearing the Recorded Peak Values for the Received Signal Strength 40

3-3 Setting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3-4 Using Unregistered Communications Partners . . . . . . . . . . . . . . . . . . . . . . . . 42

3-4-1 Finding Unused Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3-4-2 Operation Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3-4-3 Confirming Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3-5 Registering the Communications Partner . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3-5-1 Finding Unused Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3-5-2 Registering Communications Partners (All I/O Slave Stations). . . . 47

3-5-3 Operation Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3-5-4 Confirming Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3-6 Function Setting Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3-6-1 Scan List Registration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3-6-2 Stopping Registration of All I/O Slave Stations . . . . . . . . . . . . . . . . 51

3-6-3 Scan List Enabled/Disabled Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3-6-4 Input Hold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3-6-5 Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3-6-6 Output Control for Communications Errors. . . . . . . . . . . . . . . . . . . 56

3-6-7 Returning to Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Page 55

Scan List Section 3-1

3-1 Scan List

Communications are divided into two types depending on whether the communications partner (I/O Slave Station) is registered or unregistered. Registration of communications partners is referred to as scan list registration. The mode for communications with specified, registered communications partners is referred to as scan list enabled mode. The mode for communications between the Serial Master Station and unregistered I/O Slave Stations from the specified node number 1 up to the specified number of nodes is referred to as scan list disabled mode. For details, refer to 3-6-1 Scan List Registration on page 50.

• Communications with Unregistered Communications Partner (Scan List Disabled Mode)

Add or replace WT30 Terminals easily

WT30 I/O Slave Station Node No. 2

Mistaken recognition will occur if an I/O Slave Station set with the same node number or frequency channel is present in the radio signal range.

Immediate operation is possible by simply setting the frequency channel and node number for the I/O Slave Station after it is added or replaced. This usage is supported provided that the same frequency channel is not already being used nearby, and that the operation on a different frequency channel can be confirmed.

• Communications with Registered Communications Partner (Scan List Enabled Mode)

PLC PLC

No. 1

EEPROM

Not registered Registered

WT30 I/O Slave Station Node No. 1

Unregistered Slaves Registered Slaves

WT30 I/O Slave Station Node No. 2

Communications are performed with registered I/O Slave Stations only. Therefore, mistaken recognition will not occur. Communications are also only performed with the specified I/O Slave Stations, thereby eliminating unnecessary polling and heightening security.

By registering the I/O Slave Station with the serial number check enabled, re-registration at the Serial Master Station is required when an I/O Slave Station is replaced.

WT30 Serial Master StationWT30 Serial Master Station

WT30 I/O Slave Station Node No. 1

For details on using unregistered slave stations, refer to 3-4 Using Unregistered Communications Partners and for using registered slave stations, refer to 3-5 Registering the Communications Partner.

Page 56

Monitoring Unused Frequencies Section 3-2

3-2 Monitoring Unused Frequencies

The peak value of the received signal strength in the frequency band being used is monitored onsite, enabling selection of available channels (frequencies).

3-2-1 Wireless Channel Monitor for Specified Channels

The actual received signal strength for the channel specified using the channel setting switch can be monitored in realtime using the display.

1,2,3... 1. Before turning ON the power, set the function setting switch as follows:

Bit 4: OFF (field strength monitor enabled) Bit 5: OFF (specified channel)

2. Set the frequency channel to be monitored using the channel setting switch (WCH switch).

W CH

X10

3. Set the mode setting switch to TEST mode, and turn ON the power. The MS and WS indicators will flash green.

RUN

Setting range: 01 to 34, 51 to 83

MS: Module status indicator WS: Wireless status indicator

TEST SET

4. The monitoring results are displayed using the 10 levels of the RSSI (received signal strength indicator).

WSMS

Number of LEDs lit:

Field strength: Weak

Few

Many Strong

5. The received signal strength is indicated using 10 levels according to the

Received Signal Strength Indicator

Field strength

Number of indicators lit

RUN mode

TEST mode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

frequency monitoring results obtained by setting the channel setting switch. The monitoring results are not recorded in the EEPROM.

Red indicators Yellow indicators Green indicators

Range in which specified channel cannot be used.

Page 57

Monitoring Unused Frequencies Section 3-2

3-2-2 Monitoring All Wireless Channels

The received signal strength for all wireless channels is automatically scanned (the channel is changed every second), and the peak value is automatically recorded in EEPROM. (All channels are level 0 in the default settings.) The recorded peak value can be read during automatic scanning or when automatic scanning is stopped. Approximately 70 seconds is required to read the received signal strength for all channels. The automatic scan status can be confirmed using the WS indicator. In the first cycle, the WS indicator flashes green, and from the second and subsequent cycles, the WS indicator is lit green.

When starting the automatic scan to perform monitoring for the first time, allow a minimum of approximately 70 seconds before reading the peak values.

During automatic scanning, data is constantly overwritten. Therefore, to read data collected onsite from an office, for example, the data must be read when automatic scanning is stopped.

Note To change the installation position of the WT30 Terminal if the surrounding

radio wave conditions change, the recorded peak values for the received signal strength must be cleared to enable an accurate reading of the surrounding radio wave conditions. Clear the recorded data and then start a new automatic scan.

1,2,3... 1. Before turning ON the power, set the function setting switch as follows:

Bit 4: OFF (field strength monitor enabled) Bit 5: ON (automatically select all channels)

2. Change the mode setting switch setting to TEST mode and turn ON the power. The MS/WS indicators will flash green.

MS: Module status indicator WS: Wireless status indicator

WSMS

The automatic scan will start for all channels. The automatic scan will start from the specified channel, proceed sequentially up to channel 83, and then return to channel 1. Scanning will continue until the power is turned OFF (for the total 67 channels).

RUN TEST SET

Page 58

Monitoring Unused Frequencies Section 3-2

3. The WS indicator will change from flashing green to being lit green when the automatic scan completes one cycle (the received signal strength is recorded). Automatic scanning will continue.

Lit greenFlashing green

WS WS

Automatic scanning executes a single scan for each channel. Radio waves may be received from channels for which the automatic scan has been completed. Therefore, executing the automatic scan for longer periods of time, and not for just a single cycle, is recommended.

4. Specify the channel to be monitored using the channel setting switch.

Reading the Recorded Received Signal Strength after Stopping the Automatic Scan

1,2,3... 1. Set the function setting switch as shown below and change the setting of

W CH

X10

5. The peak value for the recorded received signal strength is displayed using the 10 levels indicated by the RSSI.

This operation is used to monitor the peak value after first stopping the automatic scan temporarily so that the recorded received signal strength peak values will not be overwritten.

the mode setting switch from RUN mode to TEST mode. The MS indicator will flash green.

Setting range: 01 to 34, 51 to 83

Bit 4: ON (field strength monitor disabled)

MS: Module status indicator

Number of LEDs lit:

Field stren

th: Weak

Few

Many Strong

2. Set the frequency channel to be monitored using the channel setting switch.

W CH

X10

3. The peak value for the recorded received signal strength is displayed using the 10 levels indicated by the RSSI.

Setting range: 01 to 34, 51 to 83

Number of LEDs lit:

Field stren

th: Weak

Few

Many Strong

Page 59

Monitoring Unused Frequencies Section 3-2

3-2-3 Clearing the Recorded Peak Values for the Received Signal

Strength

Use the following procedure to clear the peak values recorded for all the channels.

1,2,3... 1. Set the function setting switch as follows:

Bit 4: ON (field strength monitor disabled)

2. Change the setting for the mode setting switch from RUN mode to TEST mode.

RUN TEST SET

3. Change the setting of the special function switch as follows:

ENTER

ON OFF

4. Confirm that data has been cleared using the RSSI. The RSSI’s green indicators will flash 4 or 5 times to indicate that data has been cleared.

OFF → ON → OFF

RSSI display: Green indicators flashing

Page 60

Setting Flowchart Section 3-3

3-3 Setting Flowchart

The setup procedure for the WT30 is described below. To perform simple communications without registering I/O Slave Stations, perform the following settings omitting step 2.

Monitor received signal strength to find unused

frequency.

Using unregistered

communications partner

The WT30-TOOLS can also be used.

communications partner.

(1) I/O Slave Station settings

· Set node number.

· Set frequency channel.

(2) Serial Master Station settings

· Set node number.

· Set frequency channel.

Make operation settings.Make operation settings.

Check communications

status.

Common Settings for Serial Master and I/O Slave Stations

· Set frequency channel.

· Check RSSI level.

(1) I/O Slave Station settings

· Set node number.

· Set frequency channel.

(2) Serial Master Station settings

· Set node number (i.e., number of nodes in network).

· Set frequency channel.

· WS indicator lit green.

· RSSI flashing green.

Serial Master Station settings

· Enable/disable scan list

Confirmation at I/O Slave Station

· Check that MS and WS indicators are lit green.

· Check RSSI level.

Confirmation at Serial Master Station

· Check that MS and WS indicators are lit green.

· Set the node number.

· Check RSSI level.

Check the installation location's electromagnetic wave status and find an unused frequency. Confirm using the RSSI on the Serial Master Station or I/O Slave Station.

Register the I/O Slave Stations in the Serial Master Station. Execute scan list registration to register the I/O Slave Station data (serial number and I/O size) in the Serial Master Station. Set the number of Stations to register using the Serial Master Station's node number setting.

Make each of the settings using the function setting switch. When the Serial Master Station's scan list is enabled, communications are performed with the specified I/O Slave Stations registered in step 2. When the scan list is disabled, communications are performed with the number of I/O slave Stations set on the Serial Master Station's node number switch. For example, if node number 3 is set, communications are performed iwth I/O Slave Stations 1 to

Check whether communications are normal using the RSSI and WS (wireless network status) indicators on the Serial Master Station or I/O Slave Stations.

WT30 Utility WT30-TOOLS

The WT30 utility called WT30-TOOLS can be downloaded free of charge from the OMRON website. Be sure to read the software licence agreement before downloading the utility.

Page 61

Using Unregistered Communications Partners Section 3-4

3-4 Using Unregistered Communications Partners

Use the following procedure to operate a system configured with a Serial Master Station and either a PLC or personal computer connected via RS232C in which the I/O Slave Stations have not been registered.

3-4-1 Finding Unused Channels

Specify the frequency channel using the channel setting switch and monitor the actual measurement values for the received signal strength in real time.

Common Settings for Serial Master Station and I/O Slave Stations

1,2,3... 1. Before turning ON the power, set the function setting switch as follows:

2. Change the setting for the mode setting switch to TEST mode, and then turn ON the power.

RUN TEST SET

Bit 4: OFF (field strength monitor enabled) Bit 5: OFF (specified channel)

3. Specify the channel to be monitored using the channel setting switch.

Note For details on monitoring wireless channels when all wireless channels are

specified, refer to 3-2-2 Monitoring All Wireless Channels on page 38.

4. Check the monitoring results on the RSSI display indicated using 10 levels.

Received Signal Strength Indicator

Field strength

Number of indicators lit

RUN mode

TEST mode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

W CH

X10

In the RSSI shown in the following table, if one or less indicator is lit, the corresponding channel being monitored can be used.

Red indicators Yellow indicators Green indicators

Setting range: 01 to 34, 51 to 83

Range in which specified channel cannot be used.

Number of LEDs lit:

Field stren

th: Weak

Few

Many Strong

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

Page 62

Using Unregistered Communications Partners Section 3-4

3-4-2 Operation Settings

I/O Slave Station Settings

1,2,3... 1. Before turning ON the power, set the function setting switch as required.

2. Set the node number of the I/O Slave Station using the node setting switch.

Bit 1: Hold/clear I/O data if communications errors occu Bit 2: Input hold/normal mode Bit 3: Input filter (100 ms/10 ms)

Serial Master Station Settings

1,2,3... 1. Before turning ON the power set the function setting switch as required.

W NODE

X10

3. Set the same frequency channel used by the Serial Master Station using the channel setting switch.

Setting range: 01 to 64

W CH

X10

4. Change the setting for the mode setting switch to RUN mode, and then turn ON the power.

Setting range: 01 to 34, 51 to 83

RUN TEST SET

Bit 1: Hold/clear I/O data if communications errors occur Bit 2: OFF (scan list disabled)

Note When the scan list is disabled, communications are performed with the num-

ber of I/O Slave Stations set using the node setting switch. Example 1: If the node setting switch is set to 2, communications will be performed with up to 02 I/O Slave Stations. Example 2: If the node setting switch is set to 64, communications will be performed with up to 64 I/O Slave Stations.

2. Set the number of I/O Slave Stations to be connected using the node setting switch.

Polling will be performed for the number of I/O Slave Stations set here. For example, if the number is set to 2, communications will be performed with only 2 Stations even if 3 or more Stations actually exist.

W NODE

X10

Setting range: 01 to 6

Page 63

Using Unregistered Communications Partners Section 3-4

3. Set the frequency channel using the channel setting switch.

W CH

X10

4. Change the setting for the mode setting switch to RUN mode, and then turn ON the power.

Setting range: 01 to 34, 51 to 83

RUN TEST SET

3-4-3 Confirming Connection Status

Confirm the communications status between the I/O Slave Stations and Serial Master Station using the RSSI (received signal strength indicator) display. To confirm the status from the Serial Master Station, specify the I/O Slave Station to be monitored using the node setting switch. Be sure to turn ON the power to the I/O Slave Station in RUN mode before the Serial Master Station.

I/O Slave Stations

1,2,3... 1. Confirm that the mode setting switch on the I/O Slave Station is set to RUN

mode.

Serial Master Station

RUN TEST SET

2. Confirm that the MS and WS indicators on the I/O Slave Station are lit green.

MS: Module status indicator WS: Wireless status indicator

WSMS

3. Check the strength of the received signal from the Serial Master Station indicated using 10 levels on the RSSI display.

Many

Number of LEDs lit:

Field stren

th: Weak

Few

Strong

1,2,3... 1. Confirm that the mode setting switch on the Serial Master Station is set to

RUN mode.

RUN TEST SET

Page 64

Registering the Communications Partner Section 3-5

2. Confirm that the MS and WS indicators on the Serial Master Station are lit green.

MS: Module status indicator WS: Wireless status indicator

WSMS

3. Specify the node number of the I/O Slave Station to be monitored on the Serial Master Station’s node setting switch.

W NODE

X10

Note The Serial Master Station node number is set to the maximum

4. Check the strength of the received signal from the I/O Slave Station specified by the node setting switch. The strength is indicated using 10 levels on the RSSI display.

Setting range: 01 to 6

number of I/O Slave Stations. When the maximum number of nodes is set to a number higher that the number of nodes connected, however, the highest node number is not used. The communications partner for this node number does not exist, so no display is shown on the RSSI. If the node number is changed to that of a node that is actually connected, the RSSI display will indicate the corresponding signal strength.

Many

Number of LEDs lit:

Field stren

th: Weak

Few

Strong

Received Signal Strength Indicator

Red indicators Yellow indicators Green indicators

Field strength

Number of indicators lit

RUN mode

TESTmode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

Range in which specified channel cannot be used.

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

3-5 Registering the Communications Partner

Page 65

Registering the Communications Partner Section 3-5

3-5-1 Finding Unused Channels

Specify the frequency channel using the channel setting switch and monitor the actual measurement values for the received signal strength in real time.

Common Settings for the Serial Master Station and I/O Slave Stations

1,2,3... 1. Before turning ON the power, set the function setting switch as follows:

2. Change the setting for the mode setting switch to TEST mode, and then turn ON the power.

RUN TEST SET

3. Specify the channel to be monitored using the channel setting switch.

W CH

X10

Bit 4: OFF (field strength monitor enabled) Bit 5: OFF (specified channel)

Setting range: 01 to 34, 51 to 83

Note For details on monitoring wireless channels when all wireless channels are

specified, refer to 3-2-2 Monitoring All Wireless Channels on page 38.

4. Check the monitoring results on the RSSI display indicated using 10 levels.

Received Signal Strength Indicator

Field strength

Number of indicators lit

RUN mode

TEST mode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

The received signal strength is indicated using 10 levels. Check the communications status, referring to the field strength level.

Many

Number of LEDs lit:

Field stren

th: Weak

Few

Strong

In the RSSI shown in the following table, if one or less indicator is lit, the corresponding channel being monitored can be used.

Red indicators Yellow indicators Green indicators

Range in which specified channel cannot be used.

Page 66

Registering the Communications Partner Section 3-5

3-5-2 Registering Communications Partners (All I/O Slave Stations)

Register I/O Slave Stations at the Serial Master Station. The Serial Master Station performs wireless communications only with those I/O Slave Stations that are registered. This prevents unwanted I/O Slave Stations from joining the network. When registering, the serial number check can also be enabled or disabled. Serial number recognition is the function that writes the I/O Slave Station’s unique number to the Serial Master Station.

Scan List Registration with Serial Number Check

Note When the serial number check is not required, turn OFF bit 9 of the Serial

I/O Slave Station Settings

1,2,3... 1. Before turning ON the power, set the function setting switch as required.

The serial number is registered at the same time as the corresponding I/O Slave Station. This function has the advantage of preventing mistaken Slave recognition even if a WT30 Terminal with the same channel (frequency), same node number, and same model is in the radio signal range. The disadvantage is that I/O Slave Stations that are replaced must be re-registered.

Master Station’s function setting switch (serial number check disabled).

Bit 1: Hold/clear I/O data if communications errors occur Bit 2: Input hold/normal mode Bit 3: Input filter 100 ms/10 ms

2. Set the node number of the I/O Slave Station using the node setting switch.

W NODE

X10

3. Set the same channel used by the Serial Master Station using the channel setting switch.

Setting range: 01 to 64

Serial Master Station

W CH

X10

4. Change the setting for the mode setting switch to RUN mode, and then turn ON the power.

Setting range: 01 to 34, 51 to 8

RUN TEST SET

1,2,3... 1. Before turning ON the power, set the function setting switch on the Serial

Master Station as follows:

Bit 7: ON (scan list registration enabled) Bit 8: OFF (automatically register all I/O Slave stations) Bit 9: ON (serial number check enabled)

Page 67

Registering the Communications Partner Section 3-5

2. Set the highest node number of the connected I/O Slave Stations using the node setting switch.

W NODE

X10

3. Set the frequency channel using the channel setting switch.

Setting range: 01 to 64

X10

W CH

Setting range: 01 to 34, 51 to 83

4. Change the mode setting switch to SET mode, and then turn ON the power.

RUN TEST SET

The scan list registration will now start. During scan list registration the WS indicator will flash green.

5. The WS indicator will change from flashing green to being lit green when registration of the I/O Slave Stations (scan list registration) is completed.

Flashing green Lit green

WS WS

Confirm scan list registration using the RSSI. The RSSI’s green indicators will flash 4 or 5 times to indicate that registration has been completed.

RSSI display: Green indicators flashing

Note Be sure to allocate node numbers to I/O Slave Stations in sequence. If the I/O

Slave Station numbers are allocated out of sequence, registration will not be completed. Registration will also not be completed under the following conditions.

• I/O Slave Stations are present for which the power is not turned ON.

• Communications are unstable and cannot be confirmed.

Page 68

Registering the Communications Partner Section 3-5

3-5-3 Operation Settings

Serial Master Station Settings

1,2,3... 1. Before turning ON the power, set the function setting switch as shown be-

low to enable communications with the registered I/O Slave Stations.

Note When the scan list is disabled, however, communications are performed with

the number of I/O Slave Stations set using the node setting switch. Example 1: If the node setting switch is set to 2, communications will be performed with I/O Slave Stations 01 and 02. Example 2: If the node setting switch is set to 64, communications will be performed with I/O Slave Stations 01 to 64.

2. Change the setting for the mode setting switch to RUN mode, and then turn ON the power.

RUN TEST SET

Bit 2: ON (scan list enabled)

3-5-4 Confirming Connection Status

Confirm the communications status between the I/O Slave Stations and Serial Master Station using the RSSI (received signal strength indicator) display. Be sure to turn ON the power to the I/O Slave Station in RUN mode before the Serial Master Station.

I/O Slave Stations

1,2,3... 1. Confirm that the mode setting switch on the I/O Slave Station is set to RUN

mode.

RUN TEST SET

2. Confirm that the MS and WS indicators on the I/O Slave Station are lit green.

MS: Module status indicator WS: Wireless status indicator

WSMS

3. Check the strength of the received signal from the Serial Master Station indicated using 10 levels on the RSSI display.

Number of LEDs lit:

Field stren

th: Weak

Few

Many Strong

Page 69

Function Setting Switch Section 3-6

Serial Master Station

1,2,3... 1. Confirm that the mode setting switch on the Serial Master Station is set to

RUN mode.

RUN TEST SET

2. Confirm that the MS and WS indicators on the Serial Master Station are lit green.

MS: Module status indicator WS: Wireless status indicator

WSMS

3. Specify the node number of the I/O Slave Station to be monitored on the Serial Master Station’s node setting switch.

W NODE

X10

Note The Serial Master Station node number is set to the maximum

4. Check the strength of the received signal from the I/O Slave Station specified by the node setting switch. The strength is indicated using 10 levels on the RSSI display.

3-6 Function Setting Switch

The details of the function setting switch are provided below.

Setting range: 01 to 6

Number of LEDs lit:

Field stren

th: Weak

Few

Many

Strong

3-6-1 Scan List Registration

Scan list registration is used to join and register I/O Slave Stations as communications partners in the network using the Serial Slave Station. This enables communications to be performed with specified communications partners. Set the operation mode to SET mode.

Scan list registration is performed from the Serial Master Station using either of the following two registration methods.

1. Registering all I/O Slave Stations automatically

2. Registering specified I/O Slave Stations

Bit 7: ON (register scan list enabled)

Page 70

Function Setting Switch Section 3-6

Select to either register all I/O Slave Stations automatically by specifying the highest I/O Slave Station node number, or register specified I/O Slave Stations by specifying the I/O Slave Station node numbers individually. When registering all I/O Slave Stations at the same time, it is recommended to set the I/O Slave Station node numbers in the same frequency in sequence from node number 1 up to the number of connected nodes. Before registering, start up all the connected I/O Slave Stations in RUN mode.

Registering All I/O Slave Stations Automatically

All the I/O Slave Stations up to the highest node number are registered.

Registering Specified I/O Slave Stations

The I/O Slave Station for the node number specified at the Serial Master Station is registered. Set the special function switch from OFF to ON, and then OFF again.

Bit 8: OFF (register all I/O Slave Stations automatically)

Bit 8: ON (register specified I/O Slave Stations)

Scan List Registration with Serial Number Check Enabled

Scan List Registration with Serial Number Check Disabled

The serial number is registered at the same time as the corresponding I/O Slave Station. The serial number is the product’s unique number, i.e., no two serial numbers are the same. This setting has the advantage of preventing mistaken Slave recognition even if a WT30 Terminal with the same channel (frequency), same node number, and same model is in the radio signal range. The disadvantage is that I/O Slave Stations that are replaced must be re-registered.

When the serial number check is enabled (bit 9 is ON), the I/O Slave Station’s serial number is registered in the Serial Master Station.

Bit 9: ON (serial number check enabled)

The serial number is not registered when the scan list is registered. This setting has the advantage of not requiring I/O Slave Stations to be re-registered from the Serial Master Station after replacement. The disadvantage is that mistaken Slave recognition may occur if a WT30 Terminal with the same channel (frequency), same node number, and same model is in the radio signal range.

When the serial number check is disabled (bit 9 is OFF), the I/O Slave Station’s serial number is not registered.

Bit 9: OFF (serial number check disabled)

3-6-2 Stopping Registration of All I/O Slave Stations

Scan list registration cannot be completed if the power is not turned ON for all the I/O Slave Stations, or the node numbers are not assigned sequentially, or if the I/O Slave Stations are not within the radio signal range. Use the following settings to stop scan list registration if required. When registration of all I/O Slave Stations is stopped, scan list details will not be written to EEPROM unless this operation is performed.

Page 71

Function Setting Switch Section 3-6

Set the special function switch as follows:

ENTER

ON OFF

Confirm scan list registration using the RSSI display. The RSSI’s green indicators will flash 4 or 5 times to indicate that the operation has been completed.

OFF → ON → OF

RSSI display: Green indicators flashing

3-6-3 Scan List Enabled/Disabled Mode

The scan list enabled/disabled mode is set during RUN mode. In scan list enabled mode, communications are performed with the specified, registered communications partners. In scan list disabled mode, communications are performed without registering any communications partners.

1. Scan list registration is not required: Use scan list disabled mode

2. Scan list registration without serial number check is required: Use scan list

enabled mode

3. Scan list registration with serial number check is required: Use scan list

enabled mode

Scan List Disabled Mode In scan list disabled mode, communications are performed without registering

I/O Slave Stations starting from the node number 1 specified at the Serial Master Station up to the specified number of nodes. Scan list registration is not required in this mode, and I/O Slave Stations can be added and replaced using switch settings only. I/O Slave Stations are detected again, however, when a power interruption occurs at the Serial Master Station. Therefore, the Serial Master Stations cannot determine whether I/O Slave Stations have been changed (connecting a different model to the same node number). Even if only the power to the I/O Slave Station has been interrupted, a different station will not be detected.

Page 72

Function Setting Switch Section 3-6

I/O Slave Stations

Serial Master

Station

-M 0

Normal

communications

N T

S ID

A N

3 0

1 6

A N

T 3

D 1

Node No. 1 Node No. 2 Node No. 3

Scan List Disabled

Set the function setting switch as follows (Serial Master Station only):

Bit 2: OFF (scan list disabled)

Set to the estimated maximum

N T

number of nodes for the system. Example: 5 nodes

New nodes

added as required.

A N

Simply set the frequency channel and node number to easily add any model to the network.

T 1

T 2

Node No. 4

Scan List Enabled Mode In scan list enabled mode, the scan list must be registered. If scan list regis-

tration is performed without the serial number check, I/O Slave Stations can be replaced by simply setting the switches. Scan list registration must be performed again when an I/O Slave Station is added regardless of whether the serial number check is enabled, and also when replacing I/O Slave Stations if the serial number check is enabled. The Serial Master Station performs wireless communications only with the I/O Slave Stations registered in the scan list, preventing unwanted I/O Slave Stations from joining the network. If the serial number check is disabled, replacement of the same node number with the same model will not be detected.

Scan List Enabled

Set the function setting switch as follows (Serial Master Station only):

Bit 2: ON (scan list enabled)

3-6-4 Input Hold

In normal mode, input data is read, and sent to the Serial Master Station as is. The input data is saved according to the polling timing from the Serial Master Station. For example, after an input turns ON, if the input from the Serial Master Station turns OFF during polling, the input OFF data is transmitted to the Serial Master Station and the ON data input in the I/O Slave Station is not correctly transferred.

Page 73

Function Setting Switch Section 3-6

When the input hold is set, the ON data that has been input in the I/O Slave Station is held until it is sent to the Serial Master Station. Therefore, ON data that has been input can be sent accurately to the Serial Master Station. Up to two polling cycles are required for the input terminal status to be reflected.

Communications Timing with the Personal Computer or PLC

In normal mode, when the signal from the input terminal is shorter than one polling cycle, the ON signal may not be received by the Serial Master Station, depending on the polling timing. When the input hold is set, the ON signal is held for twice the polling cycle time. Read the data from the Serial Master Station using this timing. For details on calculating the polling cycle, refer to Wire- less Communications Delay (TWCY) on page 100. The length is

WCY = 10 ms × n stations. Commands are sent to the Serial

Serial Master Station response wait time (approx. 50 ms)

Command

One polling cycle One polling cycle

TWCY TWCY

Response

Command

Response

PC/PLC request command

Serial Master Station variable area (Slave Station input data)

approximately T Master Station from the personal computer or PLC, and the response is received within 50 ms. Allow a command interval that is less than two polling cycles, as shown below.

(Command send time + Wait time (approx. 50 ms) + Response receive time) < Two polling cycles

If a small number of I/O Slave Stations is used, the polling cycle will be shortened, and the time for a response to be received after sending the command to the personal computer or PLC may be exceed two polling cycles. In the following polling cycle, the requested data will be deleted and overwritten by the next data. Determine whether communications are valid, referring to the table on the following page.

Serial Master Station

I/O Slave Station input signal

Input terminal

Polling local node

Polling remote node

Polling remote node Polling remote node

Input hold

Polling local node

If inputs are turned ON multiple times while data is being sent to the Serial Master Station, the data will be cleared after being held for two polling cycles.

Note Polling refers to the operation in which I/O Data is sent and received for each

I/O Slave Station when communications are performed between a single Serial Master Station and multiple I/O Slave Stations. The cycle time refers to the time required for communications to be completed with all I/O Slave Stations.

The following example provides an explanation for the holding time while in input hold mode (two polling cycles in the table), with a communications baud rate of 9,600 or 38,400 bps.

Page 74

Function Setting Switch Section 3-6

Command: 24 bytes STX 00 00 0 01 01 80 0000 00 00** ETX BCC ** indicates the number of Slave Stations.

Response: 33 bytes + (4 × Number of Slave Stations) STX 00 00 00 01 01 00 00

0000 0000 0000 0000 0000

← Data

ETX BCC Transmission data length (bytes) = Command + Response For 5 stations, 24 + 33 + (4 × 5) = 77 bytes. The value obtained when this total value is converted using the communica-

tions baud rate is the personal compute/PLC communications time. List of Communications Cycle Times

Number of connected

Stations

120114 66

5 100 131 10 200 64 1280

1 polling

cycle × 2 (ms)

← Entry data

Personal computer/PLC communications

time

9,600 bps (ms) 38,400 bps (ms)

71 152 76 377 132

Note The shaded area indicates the combinations for which communications are

3-6-5 Input Filter

enabled.

Example 1: When 5 stations are connected, and a baud rate of 38,400 bps is used, two polling cycles are 100 ms > 71 ms (personal computer/PLC communications time). Therefore, data can be read.

If communications are performed at 9,600 bps, however, the two polling cycles will be 131 ms, and communications will not be able to be performed within the two polling cycles. Refer to the above table and consider the serial baud rate and number of connected stations when creating the program.

Normal Mode

Set the function setting switch as follows (I/O Slave Stations only):

Bit 2: OFF (normal mode)

Input Hold

Set the function setting switch as follows (I/O Slave Stations only):

Bit 2: ON (input hold)

Set the filter for I/O Slave Station input. The input filter can be set to 10 ms or 100 ms. The 10-ms filter recognizes ON inputs only when the input’s contact status (ON/OFF) is held for at least 10 ms. The 100-ms filter functions in the same way.

Page 75

Function Setting Switch Section 3-6

Input terminal

Input signal

10 ms/100 ms 10 ms/100 ms

10-ms Filter

Set the function setting switch as follows (I/O Slave Stations only):

Bit 3: OFF (10-ms input filter)

100-ms Filter

Set the function setting switch as follows (I/O Slave Stations only):

Bit 3: ON (100-ms input filter)

3-6-6 Output Control for Communications Errors

Select whether to hold or clear data when a communications error occurs. This function is enabled at the Serial Master Station for the input status from the I/O Slave Station, and at the I/O Slave Stations for the output commands from the Serial Master Station.

For example, when an input of the I/O Slave Station is ON, the ON data is transmitted to the Serial Master Station provided that communications are normal. If a communications error occurs and the WT30 Terminal is set to hold I/O status data if a communications error occurs, the data held in the Serial Master Station turns ON. If the WT30 Terminal is set for data to be cleared if a communications error occurs, the data held by the Serial Master Station will be cleared to OFF.

Hold I/O Data when a Communications Error Occurs

Set the function setting switch as follows (Serial Master Station and I/O Slave Stations):

Bit 1: ON (hold I/O data when a communications error occurs)

Clear I/O Data when a Communications Error Occurs

Set the function setting switch as follows (Serial Master Station and I/O Slave Stations):

Bit 1: OFF (clear I/O data when a communications error occurs)

3-6-7 Returning to Default Settings

Use the following procedure to return to the default settings. The serial numbers and I/O sizes for I/O Slave Stations registered in the Serial Master Station (EEPROM) will be cleared.

Page 76

Function Setting Switch Section 3-6

1. Before turning ON the power, set the function setting switch as follows:

All bits: OFF

2. Set the node setting switch as follows:

W NODE

X10

Setting: 98

3. Change the setting for the mode setting switch to SET mode, and then turn ON the power.

RUN TEST SET

4. Set the special function switch as follows:

ENTER

ON OFF

5. Confirm that settings have returned to the default status using the RSSI display. The RSSI’s green indicators will flash 4 or 5 times to indicate that the operation has been completed.

OFF → ON → OF

RSSI display: Green indicators flashing

Page 77

Function Setting Switch Section 3-6

Page 78

This section describes the setting methods used to extend the communications distance.

4-1 Relay Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4-1-1 Using WT30 Terminal as a Relay Station . . . . . . . . . . . . . . . . . . . . 60

4-2 Setting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4-3 Using Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4-3-1 System Configuration Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4-3-2 I/O Slave Station Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4-3-3 Relay Station Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

4-3-4 Serial Master Station Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

4-3-5 Confirming Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

SECTION 4

Relay Function

Page 79

Relay Function Section 4-1

4-1 Relay Function

The relay function extends the communications distance using an I/O Slave Station as a Relay Station. Even if equipment is relocated, making communications between the Serial Master Station and I/O Slave Stations unstable or resulting in a disconnection, the communications path can be switched, enabling communications to continue automatically via a Relay Station.

4-1-1 Using WT30 Terminal as a Relay Station

Extending Communications Distance

When the Serial Master Station and I/O Slave Stations are separated by a long communications distance, communications with stations for which radio waves are difficult to reach can be made possible with the use of a Relay Station. I/O Slave Stations are also registered through the Relay Station. Only a single Relay Station can be used, but up to 64 I/O Slave Stations can be connected to the Relay Station.

A NT1

T 3 0

0 1

ANT

T 3

ID 1

ANT1

T 3

ID 1

ANT1

ANT2

ANT

T 3

WT30-M01-FLK

Serial Master Station

Relay Station

ANT2

(I/O Slave Station)

I/O Slave Stations

64 max.

WT30-@@@

ANT1

ANT

W T

3 0

S ID

1 6

Note The I/O terminals and error output terminal settings on the I/O Slave Station

being used as the Relay Station are disabled. If an I/O Slave Station is within the communications range for the Serial Master Station, communications with the Serial Master Station can be performed directly even if a Relay Station is installed. Relays are supported for only one stage, i.e., only for one Relay Station.

Page 80

Relay Function Section 4-1

WT30 M01 FLK

Switching Communications Path

The communications path can be automatically switched to perform communications via a Relay Station. With this function, even if an I/O Slave Station moves out of the communications area with the Serial Master Station, communications will continue after switching the communications path.

A N

T 1

-M 0 1-

FLK

Serial Master Station

A N T

A N

N T

T 3

S ID

I/O Slave Station

(1) Communications become impossible.

(2) Communications path switch.

Relocation

N T

A N

T 2

Relay Station

T 3 0

I D

1 6

(I/O Slave Station)

(3) Communications performed

via Relay Station.

N T

A N

T 2

3 0

1 6

I/O Slave Station

Page 81

Setting Flowchart Section 4-2

4-2 Setting Flowchart

The settings required to perform communications using the relay function are described using the following flowchart.

Set the I/O Slave Station.

Set the relay station.

Set the Serial Master Station

· I/O Slave Station settings

· Node number setting

· Frequency channel setting

· Relay station settings

· Node number setting

· Frequency channel setting

· Serial Master Station

settings

· Function setting switch

· Frequency channel setting

Set the node number and frequency channel settings.

Set the node number to 99 to enable the I/O Slave Station to function as a relay station. Set the same frequency channel as other I/O Slave Stations.

Set the function setting switch to enable the relay function. Set the same frequency channel as other I/O Slave Stations. Set the node number to suit the application.

· Using Registered I/O Slave Stations Enable the scan list at the Serial Master Station to enable

communications with the registered specified I/O Slave Station.

· Using Unregistered I/O Slave Stations Disable the scan list to enable communications with the

number of I/O Slave Stations set using the Serial Master

Station's node setting switch. After completing all the settings, change the mode setting switch to RUN mode.

Check communications.

· I/O Slave Station, relay

station, Serial Master Station settings

· MS and WS indicators lit green.

· Node number setting

· Check RSSI display

Check whether communications are normal and check the RSSI display and WS indicator on the Serial Master Station or I/O Slave Stations.

The above example shows the procedure for setting the I/O Slave Stations, followed by the Relay Station, and finally the Serial Master Station. When performing communications, turn ON the power starting from the I/O Slave Stations in the same order as settings are made. Enable the relay function for the I/O Slave Station to be used as a Relay Station by setting the corresponding WT30 Terminal’s node setting switch to 99. Set bit 3 of the Serial Master Station’s function setting switch to ON to enable detection of and communications with the Relay Station.

Page 82

Using Relays Section 4-3

4-3 Using Relays

4-3-1 System Configuration Example

A N

T 1

A N T

Serial Master Station

Frequency channel: 02

-FL K

Function setting switch: Bit 3 ON (relay function enabled)

Relay station

N T 2

I/O Slave Station

1 6

Frequency channel: 02 Node number: 01

Frequency channel: 02 Node number: 99 (reserved for relay mode) I/O signal input/output is not possible. Number of relay stations: 1 max.

W T

3 0-M

A N T 1

T 3

ID 1

N T

3 S I

4-3-2 I/O Slave Station Settings

1,2,3... 1. Set the node setting switch to 01.

W NODE

X10

2. Set the channel setting switch. (Example: 02)

W CH

X10

4-3-3 Relay Station Settings

1,2,3... 1. Set the node setting switch to 99. Setting the node number to 99 reserves

the WT30 Terminal for use as a Relay Station only.

W NODE

X10

Setting range: 01 to 34, 51 to 8

2. Set the channel setting switch. (Example: 02)

W CH

X10

Setting range: 01 to 34, 51 to 83

Page 83

Using Relays Section 4-3

4-3-4 Serial Master Station Settings

1,2,3... 1. Turn ON bit 3 of the function setting switch. This setting enables the relay

function.

Bit 3: ON (relay enabled)

2. Set the channel setting switch. (Example: 02)

W CH

X10

Setting range: 01 to 34, 51 to 83

4-3-5 Confirming Communications

To check the signal strength between the Serial Master Station and Relay Station using the RSSI display, switch to RUN mode and set the node setting switch on the Serial Master Station to the I/O Slave Station functioning as the Relay Station.

The actual measurement values for the received signal strength of the frequency channel specified using the channel setting switch are monitored in real time.

1,2,3... 1. Change the setting of the mode setting switch to RUN mode for the I/O

Slave Stations, Relay Station, and Serial Master Station, and then turn ON the power to the I/O Slave Stations, Relay Station, and Serial Master Station, in that order.

RUN TEST SET

To communicate with the registered I/O Slave Stations, bit 2 of the Serial Master Station’s function setting switch must be set to ON (scan list enabled).

2. Confirm that the MS and WS indicators on the I/O Slave Stations are lit green. The WS indicator on the Relay Station flashes green.

MS: Module status indicator WS: Wireless network status indicato

WSMS

3. Set the node setting switch to 01.

W NODE

X10

4. The monitoring results are displayed on the RSSI display in 10 levels.

Many

Number of LEDs lit:

Field stren

th: Weak

Few

Strong

Page 84

Using Relays Section 4-3

Relay Function Precautions

The received signal strength of the I/O Slave Stations can be confirmed on the Serial Master Station. When a Relay Station is used, however, only the signal strength between the Serial Master and Relay Station can be monitored. To monitor the received signal strength at I/O Slave Stations connected to the Relay Station, check the RSSI display on the I/O Slave Stations.

Received Signal Strength Indicator

Red indicators Yellow indicators Green indicators

Field strength

Number of indicators lit

RUN mode

TEST mode

Field strength monitor test

Installation/confirmation test

Weak Medium Strong

01 23 45 6 7 89

Unstable communications range Stable communications range

Range in which specified channel can be used.

Unstable communications range Stable communications range

Range in which specified channel cannot be used.

The received signal strength is indicated using 10 levels. Check the communications status, referring to the received signal strength level.

Page 85

Using Relays Section 4-3

Page 86

SECTION 5

Troubleshooting and Maintenance

5-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5-1-1 System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

5-1-2 Troubleshooting with Indicator Displays . . . . . . . . . . . . . . . . . . . . . 70

5-2 Maintenance and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5-2-1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5-2-2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

5-2-3 Replacing Nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

5-3 Replacing WT30 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

5-3-1 I/O Slave Station Replacement Procedure . . . . . . . . . . . . . . . . . . . . 73

Page 87

Troubleshooting Section 5-1

5-1 Troubleshooting

Use the information provided here to identify the cause and location of errors that may occur in the WT30 Terminals and perform troubleshooting.

5-1-1 System Errors

Errors that occur in the wireless system are classified as hardware errors and wireless communications errors. WT30 Terminal hardware errors and wireless communications errors can be checked using the indicators.

Serial Master Station

MS indicator Status Countermeasure

Lit red A fatal error has occurred (watchdog timer error,

EEPROM error, or hardware error). Replacement of the WT30 Terminal is required.

Flashing red A non-fatal error has occurred.

Illegal switch settings have been made. Recovery is possible by correcting the settings.

An EEPROM checksum error has occurred. Initialize the WT30 Terminal. If it does not

First reset the power supply or initialize the WT30 Terminal. If the WT30 does not recover, contact your OMRON representative.

Check the switch settings and make sure they are correct.

recover, replace the WT30 Terminal. Contact your OMRON representative for details.

WS indicator Status Countermeasure

Lit red A fatal wireless communications error has

occurred. A code sense error has occurred.

Flashing red A non-fatal wireless communications error has

occurred. A verification error (I/O size mismatch) has occurred.

A WT30 or WD30 is already present on the same wireless channel. Change the frequency channel and start up the WT30 Terminal again.

The I/O size for the I/O Slave Station registered in the Serial Master Station is different from the I/O size of the I/O Slave Station performing communications. Refer to 5-3 Replacing WT30 Ter- minals on page 73 and either re-register the I/O Slave Station to perform communications or change the I/O Slave Station model (change from 16 inputs to 8 inputs/8 outputs or from 8 inputs/8 outputs to 16 inputs).

I/O Slave Stations

MS indicator Status Countermeasure

Lit red A fatal error has occurred (watchdog timer error,

EEPROM error, or hardware error). Replacement of the WT30 Terminal is required.

Flashing red A non-fatal error has occurred.

Illegal switch settings have been made. Recovery is possible by correcting the settings.

An EEPROM checksum error has occurred. Initialize the WT30 Terminal. If it does not

First reset the power supply or initialize the WT30 Terminal. If it does not recover, contact your OMRON representative.

Check the switch settings and make sure they are correct.

recover, replace the WT30 Terminal. Contact your OMRON representative for details.

Page 88

Troubleshooting Section 5-1

WS indicator Status Countermeasure

Lit red A fatal wireless communications error has

occurred. Duplicate wireless node numbers have been detected.

Flashing red A non-fatal wireless communications error has

occurred. A disconnection has occurred, a communications timeout, or a verification error (I/O size mismatch) has occurred.

Another I/O Slave Station with the same frequency channel and node number settings may be present. Check whether an I/O Slave Station with the same frequency channel and node number settings is within the radio wave range. If an I/O Slave Station with duplicate settings is found, change the frequency channel and node number setting and then restart the system. If the system does not recover, reset the affected I/ O Slave Station to a frequency without interference.

If the RSSI display is not lit, this indicates a disconnection. Change the frequency channel and relocate the WT30 Terminal to a position in which stable wireless communications are possible. If the RSSI display is lit, this indicates an I/ O size mismatch error. Re-register the I/O Slave Station from the Serial Master Station.

Page 89

Troubleshooting Section 5-1

5-1-2 Troubleshooting with Indicator Displays

The status of the MS and WS indicators depends on the communications status, as follows:

MS and WS Indicators The MS (Module Status) indicator shows the status of the local node.

The WS (Wireless Status) indicator shows the status of the wireless system. During normal operation these two indicators are lit green on both the Serial Master Station and the I/O Slave Stations.

Serial Master Station Indicators

(1) (2) (3) (4) (5)

RSSI

PWR COMM MS WS

Indicator Color Status Meaning (primary error)

(1) PWR Green Lit Power is being supplied.

Not lit Power is not being supplied.

(2) COMM Yellow Lit Serial communications in progress.

Not lit No serial communications.

(3) MS

(Module Status)

(4) WS

(Wireless Status)

(5) RSSI (Received Signal

Strength Indicator)

Red Lit A fatal error has occurred that cannot be recovered from, such

as a watchdog timer error, EEPROM, or hardware error. Replace the WT30 Terminal.

Flashing A non-fatal error, illegal switch settings, or EEPROM checksum

error has occurred that can be recovered from by resetting the system.

Green Lit Communications are normal.

Flashing TEST mode or SET mode has been activated.

--- Not lit Power is not being supplied or the system is resetting. Red Lit A fatal wireless communications error or code sense error has

Flashing A non-fatal wireless communications error or verification error

Green Lit RUN mode: Connection to wireless communications is com-

Flashing RUN mode: There is no wireless communications connection or

--- Not lit Wireless communications are not in progress. Red/yellow/

green

Green Flashing Special function operation has completed.

0 to 9 lit Displays the received signal strength in 10 levels. The field

occurred.

(slave I/O size mismatch) has occurred, or the slave is not registered.

pleted or remote I/O communications are in progress. SET mode: Scan list creation completed.

there are no slaves participating in remote I/O communications. TEST mode: The received signal strength is being monitored. SET mode: Scan list is being created.

strength is determined by the number of indicators lit: weak for a small number and strong for a large number.

Page 90

Troubleshooting Section 5-1

(3) (4)

I/O Slave Station Indicators

(1) (2)

0 1 2 3 4 5 6 7

8 9 10 1 1 12 13 14 15

PWR ERR

Indicator Color Status Meaning (primary error)

(1) PWR Green Lit Power is being supplied.

Not lit Power is not being supplied.

(2) ERR Yellow Lit Error output is ON: Wireless device error, wireless communica-

tions error, or host network error has occurred preventing normal I/O communications.

Not lit Error output is OFF: Causes of the above conditions have been

removed.

(3) MS

(Module Status)

Red Lit A fatal error has occurred that cannot be recovered from, such

as a watchdog timer error, EEPROM error, or hardware error. Replace the WT30 Terminal.

Flashing A non-fatal error, illegal switch settings, or EEPROM checksum

error has occurred that can be recovered from by resetting the system.

Green Lit Communications are normal.

Flashing TEST mode or SET mode has been activated.

--- Not lit Power is not being supplied or the system is resetting.

(4) WS

(Wireless Status)

Red Lit A fatal wireless communications error has occurred, or duplicate

wireless node addresses have been set.

Flashing A non-fatal communications error, disconnection, or communi-

cations timeout has occurred.

Green Lit RUN mode: Connection to wireless communications is com-

pleted.

Flashing RUN mode: Wireless communications not connected.

TEST mode: Received signal strength monitoring in progress.

--- Not lit No wireless communications

(5) RSSI (Received Signal

Strength Indicator)

Red/yellow/ green

0 to 9 lit Displays the received signal strength in 10 levels. The field

strength is determined by the number of indicators lit: weak for a small number and strong for a large number.

Green Flashing Special function operation has completed.

(6) 0 to 15 Yellow Lit/not lit Input or output signal ON/OFF status (0 to 7, 8 to 15)

(5)(6)

RSSI

Page 91

Maintenance and Replacement Section 5-2

5-2 Maintenance and Replacement

This section describes the routine cleaning and inspection required and the equipment handling procedure required for replacement.

5-2-1 Cleaning

Clean the devices in the network regularly as described below in order to keep the network in its optimal operating condition.

• Wipe the WT30 Terminal daily with a dry, soft cloth.

• When a spot cannot be removed with a dry cloth, dampen the cloth with a neutral cleanser (diluted to 2%), wring out the cloth, and wipe the WT30 Terminal.

• A smudge may remain on the WT30 Terminal from gum, vinyl, or tape that was left on for a long time. Remove the smudge when cleaning.

!Caution Never use volatile solvents such as paint thinner, benzene, or chemical wipes.

These substances could damage the surface of the WT30 Terminal.

5-2-2 Inspection

Be sure to inspect the system periodically to keep it in its optimal operating condition. In general, inspect the system once every 6 to 12 months, but inspect more frequently if the system is used at high temperatures or humidity or under dirty/dusty conditions.

Inspection Equipment Prepare the following equipment before inspecting the system.

Required Equipment • Standard and Phillips screwdrivers

• Multimeter (or digital volt meter)

• Alcohol and all-cotton cloth

Equipment Required Occasionally

• Synchroscope

• Thermometer, hygrometer

Inspection Procedure Check the items in the following table to make sure that the WT30 Terminal

meets the standard. If the WT30 Terminal does not meet the required standards, improve the sur-

rounding environment so that the standards are met or adjust the WT30 Terminal.

Item Inspection details Standard Inspection method

Environmental conditions

Installation Are the WT30 Terminals installed securely? No looseness Tighten screws

Power supply voltage

Ambient and in-panel temperature See below. Thermometer Ambient and in-panel humidity See below. Hygrometer Dust/dirt accumulation None Visual

Are the communications cables securely connected? No looseness Tighten screws Is the antenna tightened? No looseness Tighten antenna Is the voltage within 20.4 to 26.4 VDC Within rated voltage

range

Multimeter

Ambient Operating Temperature and Humidity Ranges for each WT30 Terminal

WT30 Terminal Acceptable temperature Acceptable humidity

Serial Master Station −10 to 55°C 25% to 85% (with no condensation or icing) I/O Slave Station −10 to 55°C 25% to 85% (with no condensation or icing)

Page 92

Replacing WT30 Terminals Section 5-3

5-2-3 Replacing Nodes

Replacement Precautions

Observe the following precautions when replacing a WT30 Terminal found to be faulty during inspection or by other means.

• After replacement make sure there are no errors with the new WT30 Terminal.

• When a WT30 Terminal is being returned for repair, attach a sheet of paper detailing the problem and return the WT30 Terminal to your OMRON representative.

• If there is a faulty contact, try wiping the contact with a clean, all-cotton cloth dampened with alcohol.

!Caution To prevent electric shock when replacing a WT30 Terminal, be sure to turn

OFF the power supplies before removing the faulty WT30 Terminal.

5-3 Replacing WT30 Terminals

The procedure for replacing I/O Slave Stations registered in the scan list is explained here. When replacing I/O Slave Stations that are not registered in the scan list, registration at the Serial Master Station is not required. Before replacing the I/O Slave Station, set the node number, frequency channel, and function setting switch. Then, either cycle the Serial Master Station power or change the mode setting switch.

5-3-1 I/O Slave Station Replacement Procedure

I/O Slave Station Settings

1,2,3... 1. Before turning ON the power, set the function setting switch to the same

setting used before replacement.

Bit 1: Hold/clear I/O data if communications errors occur Bit 2: Input hold/normal mode Bit 3: Input filter (100 ms/10 ms)

2. Set the node number of the I/O Slave Station using the node setting switch.

W NODE

X10

3. Set the frequency channel using the channel setting switch.

Setting range: 01 to 64

W CH

X10

4. Change the setting for the mode setting switch to RUN mode, and then turn ON the power.

Setting range: 01 to 34, 51 to 8

RUN TEST SET

Page 93

Replacing WT30 Terminals Section 5-3

Serial Master Station Settings

When the I/O Slave Station being set is registered in the Serial Master Station (scan list registration), the I/O Slave Station must be re-registered in the Serial Master Station after replacement, regardless of whether the serial number check is enabled or disabled. Re-registration is not required, however, if the serial number check is disabled and the model is the same as that being replaced. To automatically register all I/O Slave Stations, turn OFF bit 8 of the function setting switch (automatically register all I/O Slave Stations).

1,2,3... 1. Before turning ON the power, set the function setting switch on the Serial

Master Station as follows:

Bit 7: ON (register scan list enabled) Bit 8: ON (register specified I/O Slave Station) Bit 9: ON (serial number check enabled)

2. Set the node number of the I/O Slave Station to be connected using the node setting switch.

W NODE

X10

3. Set the frequency channel using the channel setting switch.

W CH

X10

Setting range: 01 to 64

Setting range: 01 to 34, 51 to 83

4. Change the mode setting switch to SET mode, and then turn ON the power.

RUN TEST SET

5. Set the special function switch as follows:

ENTER

OFF → ON → OF

OFF

6. The WS indicator will change from flashing green to being lit green when scan list registration is completed.

Flashing green

Lit green

WS WS

7. Change the mode setting switch to RUN mode.

RUN TEST SET

Page 94

SECTION 6

CompoWay/F

This section describes the CompoWay/F communications format and the variables that store the ON/OFF data and received signal strength readings.

6-1 Frame Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

6-1-1 Command Frame Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

6-1-2 List of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

6-1-3 Response Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

6-2 List of Response Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6-3 Detailed Description of the Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6-3-1 Read Variable Area (0101) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

6-3-2 Write Variable Area (0102) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

6-3-3 Read Controller Data (0501) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6-3-4 Read Machine Attributes (0503) . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-3-5 Read Controller Status (0601) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-3-6 Echoback Test (0801) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

6-3-7 Operation Commands (3005) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6-4 Variable Area (Setting Range) List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6-5 Slave Station Entry Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6-6 Slave Station Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6-7 Slave Station Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

6-8 Number of Communications Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6-9 Slave Station Route Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6-10 Slave Station Output Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

6-11 Slave Station I/O Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

6-12 Serial Number Registration Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Page 95

Frame Structure Section 6-1

6-1 Frame Structure

CompoWay/F is used as the communications protocol. Command frames are sent to the WT30 from the host, these commands are processed by the WT30, and response frames are returned to the host.

6-1-1 Command Frame Structure

Addresses, response codes, and end codes are all expressed in hexadecimal. If a value is followed by H (e.g., 02H), the value is a hexadecimal number. Values expressed as normal numerical values are in ASCII. The values under the frame are the numbers of bytes.

Te xt

Unit No. Subaddress SID Command text BCC

STX 0 00 0 0 ETXMRC SRC

12 21 11

BCC calculation range

STX A code, 02 hex, indicating the beginning of a communications

frame (text). This code must always be set as the first byte. When STX is received again during reception, reception is executed again from the point where STX was received.

Unit No. Identifies the unit number (UNIT No.) of the Serial Master Sta-

tion.

• A BCD value between 00 to 99 can be set.

• No response will be returned for stations with unit numbers outside the above range.

Subaddress Always set to 00. SID (Service ID) Always set to 0. Command text Application layer (service request/response PDU).

MRC Indicates the main request code. Refer to 6-1-2 List

of Services on page 76.

SRC Indicates the sub request code. Refer to 6-1-2 List of

Services on page 76. ETX A code, 03 hex, indicating the end of text. BCC The block check character. The value is an exclusive OR of all

data from the unit number to the ETX for each byte.

Data

6-1-2 List of Services

MRC SRC Name of service Processing

01 01 Read Variable Area This service reads from variable areas. 01 02 Write Variable Area This service writes to variable areas. 05 01 Read Controller Data This service reads the model number

and version codes.

05 03 Read Machine Attributes This service reads the model number

and communications buffer size. 06 01 Read Controller Status This service reads the operating status. 08 01 Echoback Test This service performs an echoback

test. 30 05 Operation Commands This service performs operations such

as software resets.

Page 96

Frame Structure Section 6-1

No services will be accepted and no responses will not be returned while the WT30 is in initial status (status until initialization is finished) or if a memory error (RAM error) has occurred.

BCC Calculation Example

The BCC (Block Check Character) is determined by calculating the exclusive OR of the individual bytes from the node number up to ETX. The 8-bit result is written to the BCC byte at the end of the frame.

STX Unit No.

02H 0 (30H) 0 (30H) 0 (30H) 0 (30H) 0 (30H) 0 (30H) 5 (35H) 0 (30H) 3 (33H) 03H 35H

BCC = 30H + 30H + 30H + 30H + 30H + 30H + 35H + 30H + 33H + 03H = 35H

The result of the calculation (35 hex) is written to the BCC byte.

Subaddress SID

The + symbols indicate XOR (exclusive OR) operations.

Command text

ETX

BCC

6-1-3 Response Frame

Unit number End code BCC

STX 0 000 ETX

12 2 2 11

End code

(hex)

00 Normal completion The command ended normally without error. None 0F FINS command error The specified FINS command could not be executed.

10 Parity error The sum total of bits whose received data is “1” does not match the

11 Framing error Stop bit is “0.” 1 12 Overrun error An attempt was made to transfer new data when the reception data

13 BCC error The calculated BCC value is different from the received BCC

14 Format error • The command text contains characters other than 0 to 9, and A

16 Subaddress error Illegal (unsupported) subaddress. Set the command code to “00.” 6 18 Frame length error The received frame exceeds the specified (supported) number of

Subaddress Command text

MRC SRC MRES SRES Data

Name Description Error detection

priority

8 The FINS response code should indicate why the command could not be executed.

2 set value of the “communications parity” bit.

3 buffer was already full.

5 value.

to F. This error does not apply to Echoback Tests. (Refer to 6-3-6 Echoback Test (0801) on page 84 for details.)

• There was no SID and command text. There was no command

text.

• “MRC/SRC” not included in command text.

4 bytes.

• An end code is returned for each command frame received that was addressed to the local node.

• No response will be returned unless the frame contained all elements up to the ETX and BCC.

Page 97

List of Response Codes Section 6-2

• The “Error Detection Priority” indicates the priority when two or more errors occur simultaneously.

Command text

Response layer (service request/response PDU) MRC The main request code.

Refer to 6-1-2 List of Services on page 76.

SRC The sub-request code.

Refer to 6-1-2 List of Services on page 76.

MRES The main response code.

Refer to 6-2 List of Response Codes on page 78.

SRES The sub-response code.

Refer to 6-2 List of Response Codes on page 78.

6-2 List of Response Codes

Response

code (hex)

0000 Normal completion No errors were found. None 0401 Unsupported com-

1001 Command too long The command is too long. 2 1002 Command too short The command is too short. 3 1101 Area type error The variable type is wrong. 4 1103 Start address out-of-

1104 End address out-of-

1003 Number of elements/

110B Response too long The response exceeds the communications buffer size (when the

1100 Parameter error • Bit position is not “00.”

3003 Read-only error Variable type “80” “82” was written to. 10 2203 Operation error • Operation cannot be executed for the request/command.

Name Description Error detection

The service function for the relevant command is not supported. 1

mand

range error

data mismatch

The read/write start address is out of range.

• The write end address (write start address + number of elements) exceeds the end address of the variable area.

The number of data does not match the number of elements. 7

number of elements is larger than 0044).

• The write data is out of the setting range.

• The command code and related information for the operation command are incorrect.

The service cannot be executed in the present mode.

• EEPROM error

priority

6-3 Detailed Description of the Services

6-3-1 Read Variable Area (0101)

This service reads data from a variable area.

Service Request PDU

MRC SRC

101 00

222424

Variable

type

Read start

address

Bit

position

Number of

elements

Page 98

Detailed Description of the Services Section 6-3

Service Response PDU

MRC SRC Response code Read data

101

22 4

(for number of elements)

0 or 4  Number of elements

Variable Type and Read Start Address

For details on variable types and read start addresses, see 6-4 Variable Area (Setting Range) List on page 86.

Bit Position

The WT30 does not support bit access. Fixed to “00.”

Number of Elements

Number of

elements

0000 The read operation is not performed (read data is not appended to

the service response PDU), and processing ends in “normal completion.”

0001 to 0044 The read operation is performed, and processing ends in “normal

completion.”

Processing

Note If the read start address is within the variable area, but the read end address

(read start address + number of elements) exceeds the end address of the variable area, reading will be completed normally, provided that the number of data is within the specified range for the number of elements. Refer to the following information.

• When the end address is specified as the read start address for two data elements, only the end address will be read (variable type 80 in this example).

Read start address →

Read end address →

Address

003E

003F

Variable Area

* * * * * * * * * * * * * * * *

← End address

Response Code

Response

code (hex)

1001 Command too long The command is too long. 1002 Command too short The command is too short. 1101 Area type error The variable type is wrong. 1103 Start address out-of-range error The read start address is out of

110B Response too long The response exceeds the com-

1100 Parameter error Other parameter error has

Error name Cause

range.

munications buffer size.

• The number of elements is larger than 0044.

occurred.

• Bit position is not “00.”

Page 99

Detailed Description of the Services Section 6-3

Response

code (hex)

2203 Operation error Operation cannot be executed

0000 Normal completion No errors were found.

6-3-2 Write Variable Area (0102)

This service writes data to a variable area.

Service Request PDU

MRC SRC

102 00

222424

Service Response PDU

MRC SRC

102

22 4

Variable

type

Response

write address

code

Error name Cause

for the request/command. The service cannot be executed in the present mode.

• EEPROM error

Start

position

Bit

Number of

elements

Write Data

(for number of elements)

0QT4 × Number of elements

Variable Type and Write Start Address

For details on variable types and write start addresses, refer to 6-4 Variable Area (Setting Range) List on page 86.

Bit Position

The WT30 does not support bit access. Fixed to “00.”

Number of Elements

Number of

elements

0000 The write operation is not performed (do not append write data to

the service request PDU) and processing ends in “normal completion.”

0001 to 0044 The write operation is performed and processing ends in “normal

completion.”

Processing

Response Code

Response

code

1002 Command too short The command is too short. 1101 Area type error The variable type is wrong. 1103 Start address out-of-range error Write start address is out of

1104 End address out-of-range error The write end address (write

1003 Number of elements/data mis-

match

Name Description

range.

start address + number of elements) exceeds the end address of the variable area.

The number of data does not match the number of elements.

Page 100

Detailed Description of the Services Section 6-3

s s

Response

code

1100 Parameter error Other parameter error.

3003 Read-only error Attempted to write to a read-only

2203 Operation error Operation cannot be executed

0000 Normal completion No errors were found.

Name Description

• Bit position is not “00.”

• The write data is out of the

setting range.

parameter.

for the request/command. The service cannot be executed in the present mode.

Note (1) A command too long error will not occur for the Write Variable Area ser-

vice. If the data exists for the specified number of elements in the service request PDU, a number of elements/data mismatch error will occur instead.

(2) The specified range for the number of elements is checked when the end

address range exceeded error and number of elements/data mismatch error are checked. Refer to the following information.

End Address Range Exceeded Error

This error occurs under the following conditions.

• The end address is specified for the write start address setting, so an error will occur if there are two or more data elements (variable type 81 in this example).

Write start address →

Write end address →

Address

003E

003F

Variable area

* * * * * * * * * * * * * * * *

← End addres

Number of Elements/Data Mismatch Error

The number of elements/data mismatch error will occur as follows (variable type 81 in this example).

• The number of elements is 2, and the number of write data is 3, so both are within the specified range, but the number of elements and number of data do not match.

Write start address →

Write end address →

Address

003B

003C

003D

003E

003F

Variable Area

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

← Write data

← End addres

Datasheet WT30 Datasheet (OMRON)

Specifications and Main Features

Frequently Asked Questions

User Manual

1-1 Features

1-1-1 Overview

1-1-2 System Configuration

1-1-3 Available Models

1-2 Nomenclature and Functions

1-2-1 WT30 Terminals: Serial Master Stations

1-2-2 WT30 Terminals: I/O Slave Stations

2-1 Installation

2-1-1 Installation location

2-1-2 Installation Precautions

2-1-3 Determining the Antenna Installation Position

2-1-4 Flat Diversity Antennas

2-1-5 Dimensions

2-1-6 Installation

2-2 Connections

2-2-1 Cable Connections

2-2-2 Wiring Precautions

2-2-3 WT30 Power Supply Wiring

2-2-4 I/O Terminal Wiring

2-3 Wireless System Design Considerations

2-3-1 Construction of Multiple Wireless Systems

2-3-2 Communications Errors Caused by Intermodulation

2-3-3 Serial Master Station Input/Output Data

3-1 Scan List

3-2 Monitoring Unused Frequencies

3-2-1 Wireless Channel Monitor for Specified Channels

3-2-2 Monitoring All Wireless Channels

3-3 Setting Flowchart

3-4 Using Unregistered Communications Partners

3-4-1 Finding Unused Channels

3-4-2 Operation Settings

3-4-3 Confirming Connection Status

3-5 Registering the Communications Partner

3-5-1 Finding Unused Channels

3-5-2 Registering Communications Partners (All I/O Slave Stations)

3-5-3 Operation Settings

3-5-4 Confirming Connection Status

3-6 Function Setting Switch

3-6-1 Scan List Registration

3-6-2 Stopping Registration of All I/O Slave Stations

3-6-3 Scan List Enabled/Disabled Mode

3-6-4 Input Hold

3-6-5 Input Filter

3-6-6 Output Control for Communications Errors

3-6-7 Returning to Default Settings

4-1 Relay Function

4-1-1 Using WT30 Terminal as a Relay Station

4-2 Setting Flowchart

4-3 Using Relays

4-3-1 System Configuration Example

4-3-2 I/O Slave Station Settings

4-3-3 Relay Station Settings

4-3-4 Serial Master Station Settings

4-3-5 Confirming Communications

5-1 Troubleshooting

5-1-1 System Errors

5-1-2 Troubleshooting with Indicator Displays

5-2 Maintenance and Replacement

5-2-1 Cleaning

5-2-2 Inspection

5-2-3 Replacing Nodes

5-3 Replacing WT30 Terminals

5-3-1 I/O Slave Station Replacement Procedure

6-1 Frame Structure

6-1-1 Command Frame Structure

6-1-2 List of Services

6-1-3 Response Frame

6-2 List of Response Codes

6-3 Detailed Description of the Services

6-3-1 Read Variable Area (0101)

6-3-2 Write Variable Area (0102)