YOKOGAWA SMARTDAC+ GX20 User manual

User’s
Manual
Yokogawa Electric Corporation
IM 04L51B01-41EN
2nd Edition
Model GX20/GP20/GM10
920 MHz Wireless Communication
(/CM2 and /CS2)
Model UT52A/UT32A
920 MHz Wireless Communication


i
IM 04L51B01-41EN
Introduction
Thank you for purchasing the SMARTDAC+ GX20/GP20 (hereafter referred to as the GX,
GP), GM (hereafter referred to as the GM), or UTAdvanced UT52A/UT32A (with the /MDL
option) (hereafter referred to as the UT).
This manual explains how to use the GX20/GP20/GM10’s 920 MHz wireless communication
(/CM2, /CS2 option) and the UT52A/UT32A’s 920 MHz wireless communication (suffix
code type 3:B). For details on the various settings and operating details of the GX/GP/GM/
UT/GX70SM (Wireless Input Unit) and how to use it, read this manual together with the
following manuals.
Model Manual Title Manual No. Description
GX/GP Model GX10/GX20/GP10/GP20 Paperless Recorder
First Step Guide
IM 04L51B01-02EN Describes the basic operation, installation,
and wiring of the GX/GP.
GX20 (/CM2 option)
GM10 (/CM2 and /CS2 options)
920MHz Wireless Communication
First Step Guide
IM 04L51B01-42EN Describes the 920MHz Wireless
Communication.
Model GX10/GX20/GP10/GP20 Paperless Recorder
User’s Manual
IM 04L51B01-01EN Describes the various settings and operating
details of the GX/GP.
GM Data Acquisition System GM First Step Guide IM 04L55B01-02EN Describes the basic operation, installation,
and wiring of the GM.
GX20 (/CM2 option)
GM10 (/CM2 and /CS2 options)
920MHz Wireless Communication
First Step Guide
IM 04L51B01-42EN Describes the 920MHz Wireless
Communication.
Data Acquisition System GM User's Manual IM 04L55B01-01EN Describes the various settings and operating
details of the GM.
UT UT55A/UT52A Digital Indicating Controller
Operation Guide for Single-loop Control (for
Standard code model)
IM 05P01C81-11EN Describes the installation and wiring of the
UT.
UT55A/UT52A Digital Indicating Controller User's
Manual
IM 05P01C31-01EN Describes the detailed settings and all other
functions of the UT.
UT35A/UT32A Digital Indicating Controller
Operation Guide (for Standard code model)
IM 05P01D81-11EN Describes the installation and wiring of the
UT.
UT35A/UT32A Digital Indicating Controller User's
Manual
IM 05P01D31-01EN Describes the detailed settings and all other
functions of the UT.
UT52A/MDL, UT32A/MDL
Digital Indicating Controller (DIN Rail Mounting and
Wireless Communication Type) Operation Guide
IM 05P01C81-41EN Describes the 920MHz Wireless
Communication.
GX70SM Model GX70SM
Wireless Input Uint
First Step Guide (Notes about Using This Product)
IM 04L57B01-02EN Describes the precaution on the use,
installation, and wiring of the GX70SM.
Model GX70SM
Wireless Input Uint
User’s Manual
IM 04L57B01-01EN Describes the configuration, management,
and maintenance of the GX70SM and the
wireless input unit function of the GX20 (/
CM2)/GP20 (/CM2) Paperless Recorders and
GM10 (/CM2) Data Acquisition Unit.
The 920 MHz wireless communication function can only be used in the US.
To ensure correct use, please read this manual thoroughly before beginning operation.
The following manuals are provided for the GX/GM and UT.
● PaperManuals
Model Manual Title Manual No. Description
GX/GP Model GX10/GX20/GP10/GP20
Paperless Recorder First Step Guide
IM 04L51B01-02EN Describes the basic operations of the GX/GP.
GM Data Acquisition System GM First Step
Guide
IM 04L55B01-02EN Describes the basic operations of the GM.
GX/GP/
GM
GX20 (/CM2 option)
GM10 (/CM2 and /CS2 options)
920MHz Wireless Communication
First Step Guide
IM 04L51B01-42EN Describes the 920MHz Wireless Communication.
UT UT55A/MDL, UT52A/MDL Digital
Indicating Controller (DIN Rail Mounting
Type) Operation Guide for Single-loop
Control
IM 05P01C81-11EN Describes the installation and wiring of the UT.
UT35A/MDL, UT32A/MDL Digital
Indicating Controller (DIN Rail Mounting
Type) Operation Guide
IM 05P01D81-11EN Describes the installation and wiring of the UT.
UT52A/MDL, UT32A/MDL
Digital Indicating Controller (DIN Rail
Mounting and Wireless Communication
Type) Operation Guide
IM 05P01C81-41EN Describes the 920MHz Wireless Communication.
GX70SM Model GX70SM
Wireless Input Uint
First Step Guide (Notes about Using This
Product)
IM 04L57B01-02EN Describes the precaution on the use, installation, and
wiring of the GX70SM.
2nd Edition: Jun. 2018 (YK)
All Rights Reserved, Copyright © 2017, Yokogawa Electric Corporation

ii IM 04L51B01-41EN
● SMARTDAC+DownloadableElectronicManuals
You can download the latest manuals from the following website.
www.smartdacplus.com/manual/en/
Model Manual Title Manual No. Description
GX/GP Model GX10/GX20/GP10/GP20
Paperless Recorder First Step Guide
IM 04L51B01-02EN This is the electronic version of the paper manual.
Model GX10/GX20/GP10/GP20
Paperless Recorder User’s Manual
IM 04L51B01-01EN Describes how to use the GX/GP. The communication
control commands and some of the options are excluded.
Model GX10/GX20/GP10/GP20
Advanced Security Function (/AS) User’s
Manual
IM 04L51B01-05EN Describes how to use the advanced security function (/
AS option).
GM Data Acquisition System GM First Step
Guide
IM 04L55B01-02EN This is the electronic version of the paper manual.
Data Acquisition System GM User's
Manual
IM 04L55B01-01EN Describes how to use the GM. The communication
control commands and some of the options are excluded.
Data Acquisition System GM Advanced
Security Function (/AS) User's Manual
IM 04L55B01-05EN Describes how to use the advanced security function (/
AS option).
GX/GP
GM
GX20 (/CM2 option)
GM10 (/CM2 and /CS2 options)
920MHz Wireless Communication
First Step Guide
IM 04L51B01-42EN Describes the 920MHz Wireless Communication.
Model GX10/GX20/GP10/GP20/GM10
Communication Command User's
Manual
IM 04L51B01-17EN Describes how to use command control communication
functions.
SMARTDAC+ STANDARD Universal
Viewer User's Manual
IM 04L61B01-01EN Describes how to use Universal Viewer, which is a
software that displays GX/GP/GM measurement data
files.
SMARTDAC+ STANDARD Hardware
Configurator User's Manual
IM 04L61B01-02EN Describes how to use the PC software for creating setting
parameters for various GX/GP/GM functions.
Model GX10/GX20/GP10/GP20/GM10
Multi-batch Function (/BT) User’s Manual
IM 04L51B01-03EN Describes how to use the multi batch function (/BT
option).
GX/GP
GM
Model GX10/GX20/GP10/GP20/GM10
Log Scale (/LG) User’s Manual
IM 04L51B01-06EN Describes how to use the log scale (/LG option).
Model GX10/GX20/GP10/GP20/GM10
EtherNet/IP Communication (/E1) User’s
Manual
IM 04L51B01-18EN Describes how to use the communication functions
through the EtherNet/IP (/E1 option).
Model GX10/GX20/GP10/GP20/GM10
WT Communication (/E2) User’s Manual
IM 04L51B01-19EN Describes how to use WT communication (/E2 option).
Model GX10/GX20/GP10/GP20/GM10
OPC-UA Server (/E3) User’s Manual
IM 04L51B01-20EN Describes how to use the OPC-UA server function (/E3
option).
Model GX10/GX20/GP10/GP20/GM10
SLMP Communication (/E4) User's
Manual
IM 04L51B01-21EN Describes how to use SLMP communication function (/
E4 option).
Model GX20/GM10
920 MHz wireless communication (/CM2
and /CS2)
User’s Manual
IM 04L51B01-41EN Describes how to use the 920 MHz wireless
communication (/CM2, /CS2 option).
GX/GP DXA170 DAQStudio User's Manual IM 04L41B01-62EN Describes how to create custom displays (/CG option).
GX70SM Model GX70SM
Wireless Input Uint
First Step Guide (Notes about Using This
Product)
IM 04L57B01-02EN This is the electronic version of the paper manual.
Model GX70SM
Wireless Input Uint User’s Manual
IM 04L57B01-01EN Describes the configuration, management, and
maintenance of the GX70SM and the wireless input unit
function of the GX20 (/CM2)/GP20 (/CM2) Paperless
Recorders and GM10 (/CM2) Data Acquisition Unit.

iii
IM 04L51B01-41EN
● UTAdvancedDownloadableElectronicManuals
You can download the latest manuals from the following website.
http://www.yokogawa.com/ns/ut/im/
Model Manual Title Manual No. Description
UT UT55A/MDL, UT52A/MDL Controller
(DIN Rail Mounting Type) Operation
Guide for Single-loop Control
IM 05P01C81-11EN Describes the installation and wiring of the UT.
UT35A/MDL, UT32A/MDL Controller (DIN
Rail Mounting Type) Operation Guide
IM 05P01D81-11EN Describes the installation and wiring of the UT.
UT52A/MDL, UT32A/MDL
Digital Indicating Controller (DIN Rail
Mounting and Wireless Communication
Type) Operation Guide
IM 05P01C81-41EN Describes the 920MHz Wireless Communication.
UT55A/UT52A Digital Indicating
Controller User's Manual
IM 05P01C31-01EN Describes the detailed settings and all other functions
of the UT.
UT35A/UT32A Digital Indicating
Controller User's Manual
IM 05P01D31-01EN Describes the detailed settings and all other functions
of the UT.
UTAdvanced Series Communication
Interface (RS-485, Ethernet) User's
Manual
IM 05P07A01-01EN Describes how to use Ethernet communication and serial
communication.
LL50A Parameter Setting Software
with Ladder Program Building Function
and Network Profile Creating Function
Installation Manual
IM 05P05A01-01EN Describes how to install and uninstall LL50A.
LL50A Parameter Setting Software with
Ladder Program Building Function and
Network Profile Creating Function User's
Manual
IM 05P05A01-02EN Describes how to use the LL50A, the ladder sequence
function, inter-device communication function, network
profile creating function, and so on.
Notes
● Thecontentsofthismanualaresubjecttochangewithoutpriornoticeasaresultof
continuing improvements to the instrument’s performance and functions.
● Everyefforthasbeenmadeinthepreparationofthismanualtoensuretheaccuracyofits
contents. However, should you have any questions or find any errors, please contact your
nearest YOKOGAWA dealer.
● Copyingorreproducingalloranypartofthecontentsofthismanualwithout
YOKOGAWA’s permission is strictly prohibited.
Trademarks
● SMARTDAC+,SMARTDACPLUS,andUTAdvancedareregisteredtrademarksof
Yokogawa Electric Corporation.
● MicrosoftandWindowsareregisteredtrademarksortrademarksofMicrosoftCorporation
in the United States and other countries.
● AdobeandAcrobatareregisteredtrademarksortrademarksofAdobeSystems
Incorporated.
● KerberosisatrademarkofMassachusettsInstituteofTechnology(MIT).
● RC4isaregisteredtrademarkofRSASecurityInc.intheUnitedStatesandother
countries.
● Companyandproductnamesthatappearinthismanualareregisteredtrademarksor
trademarks of their respective holders.
● Thecompanyandproductnamesusedinthismanualarenotaccompaniedbythe
registered trademark or trademark symbols (® and ™).
About the Usage of Open Source Software (GX/GP/GM)
This product uses open source software.
For details on using open source software, see Regarding the Downloading and Installing
for the Software, Manuals and Labels/About the Usage of Open Source Software (IM
04L61B01-11EN).
Revisions
1st Edition: November 2017
2nd Edition: June 2018

iv IM 04L51B01-41EN
How to Use This Manual
RecorderVersionandFunctionsDescribedinThisManual
In the case of the GX/GP/GM, the contents of this manual apply to the GX/GP/GM with the
following release numbers (see the STYLE S number) and style numbers (see the STYLE H
number).
Model ReleaseNumber Style Number Addition and Change
GX/GP 4.02 2 Addition of GP
Supports GX70SM
GM 4.02 1
In the case of the UT, the contents of this manual apply to the UT52A/UT32A with the
following release numbers and style numbers.
Model ReleaseNumber Style Number
UT52A 1 11
UT32A 1 11
WhatThisManualExplains
This manual mainly describes how to use the 920 MHz wireless communication. For
details on other settings and operating procedures, see the Model GX10/GX20/GP10/
GP20 Paperless Recorder User’s Manual (IM 04L51B01-01EN), Data Acquisition System
GM User's Manual (IM 04L55B01-01EN), UT55A/UT52A Digital Indicating Controller User's
Manual (IM 05P01C31-01EN), or UT35A/UT32A Digital Indicating Controller User's Manual
(IM 05P01D31-01EN).
For details on the GX/GP/GM communication commands, see the Model GX10/GX20/GP10/
GP20/GM10 Communication Command User's Manual (IM 04L51B01-17EN).
The GX20/GP20/GM10 standard type and large memory type are distinguished using the
following notations.
•Standardtype: GX20-1/GP20-1/GM10-1
•Largememorytype: GX20-2/GP20-2/GM10-2
The following terms are used for references to other manuals:
Notation Description
GX/GP User’s Manual Model GX10/GX20/GP10/GP20
Paperless Recorder User’s Manual
Refers to the IM 04L51B01-01EN.
GX/GP First Step Guide Model GX10/GX20/GP10/GP20
Paperless Recorder First Step Guide
Refers to the IM 04L51B01-02EN.
GM User’s Manual GM Data Acquisition System
User’s Manual
Refers to the IM 04L55B01-01EN.
GM First Step Guide GM Data Acquisition System
First Step Guide
Refers to the IM 04L55B01-02EN.
Communication Command Manual Model GX10/GX20/GP10/GP20/GM10
Communication Command User’s Manual
Refers to the IM 04L51B01-17EN.
UT52A User’s Manual UT55A/UT52A Digital Indicating Controller User’s Manual
Refers to the IM 05P01C31-01EN.
UT52A Operation Guide UT55A/MDL, UT52A/MDL Controller (DIN rail mounting type)
Operation Guide for Single-loop Control
Refers to the IM 05P01C31-11EN.
UT32A User’s Manual UT35A/UT32A Digital Indicating Controller User’s Manual
Refers to the IM 05P01D31-01EN.
UT32A Operation Guide UT35A/MDL, UT32A/MDL Controller (DIN rail mounting type)
Operation Guide for Single-loop Control
Refers to the IM 05P01D31-11EN.

v
IM 04L51B01-41EN
This manual uses the following terms.
Term Description
Wireless device Refers to this device, which is equipped with wireless communication
hardware.
Maintenance console* Refers to MH920 Console International.
Wireless communication
module*
Refers to the wireless communication hardware of this device.
It specifically refers to the wireless communication coordinator module
and wireless communication router module.
Coordinator Refers to the master device. It refers to this device equipped with the
wireless communication coordinator module.
Router Refers to the router. It refers to this device equipped with the wireless
communication coordinator module.
Wireless sensor Refers to wireless input unit GX70SM etc.
* The firmware version of the wireless communication module covered in this manual is vf4.x. The
corresponding maintenance console version is v4.x.
How to Use This Manual

vi IM 04L51B01-41EN
ConventionsUsedinThisManual
Unit
KDenotes 1024. Example: 768K (file size)
kDenotes 1000.
Notes
Improper handling or use can lead to injury to the user or damage to
the instrument. This symbol appears on the instrument to indicate that
the user must refer to the user’s manual for special instructions. The
same symbol appears in the corresponding place in the user's manual
to identify those instructions. In the manual, the symbol is used in
conjunctionwiththeword“WARNING”or“CAUTION.”
Warning Calls attention to actions or conditions that could cause serious or fatal
injurytotheuser,andprecautionsthatcanbetakentopreventsuch
occurrences.
CAUTION Calls attention to actions or conditions that could cause light injury
to the user or cause damage to the instrument or user’s data, and
precautions that can be taken to prevent such occurrences.
Note Calls attention to information that is important for the proper operation
of the instrument.
ReferenceItem
Reference to related operation or explanation is indicated after this
mark.
Example: section 4.1
ConventionsUsedintheProceduralExplanations
Bold characters Denotes key or character strings that appear on the screen.
Example: Voltage
Aa# 1Indicates the character types that can be used.
a symbol,
uppercase alphabet,
numbers
A
1
lowercase alphabet, #
Procedure Carry out the procedure according to the step numbers. All procedures
are written with inexperienced users in mind; depending on the
operation, not all steps need to be taken.
Explanation gives information such as limitations related the procedure.
Indicates the setup screen and explains the settings.
Explanation
Path
Description
How to Use This Manual

vii
IM 04L51B01-41EN
RevisionHistory
Edition Model Product Description
1 GX/GM Release number 4
(Version 4.01)
New edition
Style number 1
UT Release number 1
Style number 11
2 GX/GP Release number 4
(Version 4.02)
Addition of GP20
Supports GX70SM
Style number 2
GM Release number 4
(Version 4.02)
Style number 1
How to Use This Manual

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1
2
3
4
5
10
App
Contents
Introduction................................................................................................................................................ i
Notes ........................................................................................................................................................iii
Trademarks ..............................................................................................................................................iii
Revisions..................................................................................................................................................iii
How to Use This Manual......................................................................................................................iv
Recorder Version and Functions Described in This Manual.................................................................... iv
What This Manual Explains..................................................................................................................... iv
Conventions Used in This Manual........................................................................................................... vi
Revision History.......................................................................................................................................vii
Chapter 1 OverviewandSpecifications
1.1 Overview .............................................................................................................................1-1
1.2 Specifications ......................................................................................................................1-2
1.2.1 Wireless Communication Function.........................................................................................1-2
Chapter 2 Configuration and Connection
2.1 Configuration.......................................................................................................................2-1
2.1.1 Preparation, Configuration, and Operation Check .................................................................2-1
2.1.2 Default Settings......................................................................................................................2-3
2.1.3 Configuration Example (GX/GP-GM) .....................................................................................2-5
2.1.4 Configuration Example (GX/GP-UT) ......................................................................................2-9
2.2 Connection ........................................................................................................................2-13
2.2.1 Status LED Indication...........................................................................................................2-13
2.2.2 Connecting an External Antenna..........................................................................................2-14
Chapter 3 NetworkOverview
3.1 Wireless Communication Option.........................................................................................3-1
3.1.1 Wireless Communication Option............................................................................................3-1
3.1.2 Network Join Mode ................................................................................................................3-1
3.1.3 When Wireless Devices Are Used as Low-Speed Moving Bodies.........................................3-2
3.1.4 Multidrop Connection .............................................................................................................3-3
3.1.5 Packet Filtering Setup ............................................................................................................3-3
3.2 Functions.............................................................................................................................3-4
3.3 Network Numbers and Network Names..............................................................................3-5
3.3.1 Channel Numbers ..................................................................................................................3-5
3.3.2 PAN ID (Group Number) ........................................................................................................3-6
3.3.3 Network Names......................................................................................................................3-6
3.4 Multi-hop Communication ...................................................................................................3-7
3.4.1 Network Participation and Route Configuration .....................................................................3-7
3.4.2 Network Scale Setup..............................................................................................................3-8
3.4.3 Monitoring Unit Time of Radio Transmission..........................................................................3-8
Chapter 4 Using the Maintenance Console
4.1 Overview of the Maintenance Console ...............................................................................4-1
4.1.1 Configuration Function of the Maintenance Console .............................................................4-1
4.2 Installation ...........................................................................................................................4-2
4.2.1 System Requirements............................................................................................................4-2
4.2.2 Installing the Maintenance Console .......................................................................................4-2
4.3 Connection and Startup ......................................................................................................4-3
4.3.1 Connection Configuration.......................................................................................................4-3
4.3.2 Starting and Closing the Maintenance Console .....................................................................4-3
4.3.3 Maintenance Console’s Main Window ...................................................................................4-4
4.4 Configuring the Maintenance Console Environment........................................................... 4-5
4.4.1 Environment Setup Window...................................................................................................4-5
4.5 Configuring the Coordinator Module ...................................................................................4-7
4.5.1 Setup Procedure ....................................................................................................................4-7
4.5.2 Coordinator configuration selection window...........................................................................4-8
4.5.3 Coordinator Configuration Window ........................................................................................4-9

xIM 04L51B01-41EN
4.5.4 MAC Address List Window (sub window).............................................................................4-19
4.5.5 Station Number List Window (sub window)..........................................................................4-22
4.5.6 Status Window .....................................................................................................................4-24
4.5.7 Setting the Network Scale (Network scale setup) ................................................................4-25
4.6 Configuring Router Modules .............................................................................................4-27
4.6.1 Setup Procedure ..................................................................................................................4-27
4.6.2 Router configuration selection window.................................................................................4-28
4.6.3 Router Configuration Window ..............................................................................................4-29
4.6.4 Status Window .....................................................................................................................4-38
4.6.5 Setting the Network Scale (Network scale setup) ................................................................4-40
4.7 Configuring the Coordinator Module (Low-speed moving body)....................................... 4-42
4.7.1 Setup Procedure ..................................................................................................................4-42
4.7.2 MAC Address List Window (sub window).............................................................................4-53
4.7.3 Station Number List Window (sub window)..........................................................................4-57
4.7.4 Status Window .....................................................................................................................4-59
4.7.5 Setting the Network Scale (Network scale setup) ................................................................4-61
4.8 Configuring the Router Module (Low-speed moving body)............................................... 4-63
4.8.1 Setup Procedure ..................................................................................................................4-63
4.8.2 Router configuration selection window.................................................................................4-64
4.8.3 Router Configuration Window ..............................................................................................4-65
4.8.4 Status Window .....................................................................................................................4-72
4.8.5 Setting the Network Scale (Network scale setup) ................................................................4-74
4.9 Other Functions (Tool Menu).............................................................................................4-76
4.10 Measurement tool .............................................................................................................4-83
4.10.1 Channel Noise Scan Tool.....................................................................................................4-83
4.10.2 Communication Test Tool .....................................................................................................4-88
Chapter 5 List of Settings
5.1 List of Settings.....................................................................................................................5-1
5.1.1 Overview of Configuration Files .............................................................................................5-1
5.1.2 Basic Configuration Items ......................................................................................................5-2
5.1.3 Communication Setup Items ..................................................................................................5-3
5.1.4 Protocol Setup Items..............................................................................................................5-3
5.1.5 Packet Filtering Setup Items ..................................................................................................5-3
5.1.6 Station Number Setup Items ..................................................................................................5-4
5.1.7 Fixed Route Setup Items........................................................................................................5-4
5.1.8 Password Setup Items ...........................................................................................................5-4
Appendix
Appendix 1 .................................................................................................................. Troubleshooting
App-1
Appendix 2 ............................................................................................... Frequently Asked Questions
App-7
Appendix 3 .................................................................................... Different Versions and Connectivity
App-9
Appendix 4 .........................................................................................................................Terminology
App-10
Appendix 5 ...................................................................................... System Operation Considerations
App-11
Contents

1-1
IM 04L51B01-41EN
Overview and Specifications
1
2
3
4
5
10
App
1.1 Overview
Wireless communication (900 MHz band) enables data communication between
coordinators (GX20/GP20/GM10 (/CM2)) and routers (GM10 (/CS2), UT), wireless sensors
(GX70SM). Because routers are equipped with a repeater function, they can be used to
extend the communication distance.
Coordinator
Router
Router
Router
Router
Even when wireless communication is cut
off, the most suitable communication route
is automatically selected.
* Multi-hop
Wireless sensor
(GX70SM)
Features
• Asinglecoordinatorcanaccommodateupto100routers.1This is limited to 99 for the UT.
In the case of the wireless sensor (GX70SM), up to 96 routers can be connected by
connecting four repeaters to a coordinator (wireless module version V 4.2.0 or later, GX/
GP/GM release number 4.02 or later).
• Theoutputlargerthanthatofconventionalspecifiedlowpowerradioachievingarangeof
about 800 m2with a clear line-of-sight.
• Withmulti-hopconnection,evenwhenwirelesscommunicationiscutoffduetotemporary
deterioration in radio conditions, the most suitable communication route is automatically
selected to resume wireless communication.
GM10 routers (/CS2 option) and UT routers can be used as repeaters to extend
communication distance and improve radio quality.
• Featuresofthe900MHzband(comparedtothe2.4GHzband)
• Becausetheradiofrequencyislow,radiosignalsattenuatelessinthetransmission
route.
• Becausetheradiofrequencyislowandthetendencytogostraightislower,theradio
signals can more easily diffract around obstacles.
• Nolicenseisrequired.
1 The number of units (include repeaters) that can connected may be limited by the
communication data size or the transmission interval.
When used for low-speed moving bodies, the maximum number of routers is limited to 50
including repeaters.
2 The range depends on the operating environment.
Advantages
• Wiringcostscanbereducedwhenfloorlayoutischanged.
• Additionofandchangestomeasurementpointscaneasilybeaccommodated.
• Becausethecommunicationiswireless,routers,sensors,andthelikecanbeinstalledin
low-speed moving bodies to enable communication between them.
Chapter 1 OverviewandSpecifications

1-2 IM 04L51B01-41EN
1.2 Specifications
1.2.1 WirelessCommunicationFunction
Functions
Item
Description
Coordinator
(GX20/GP20/GM10 (/CM2))
Router(GM10(/CS2)) Router(UT)
Standard FCC Part 15 Subpart C compliant (§15.247)
Carrier frequency band 902.1 to 927.9 MHz
Wireless channel bandwidth 600 kHz
Number of wireless channels 43 ch
Maximum transmitter output 20 mW
Modulation method GFSK
Antenna External antenna (sold separately), SMA connector
Maximum number of router
receptions
100 (number of router receptions
by a single coordinator, varies
depending on the communication
conditions)
— —
Maximum packet size 2,048 bytes —
Data rate 100 kbps max.
Communication distance Approx. 800 m with a clear line-of-sight (depends on the operating environment)1
Communication format Mesh, multi-hop (maximum number of hops: 16)
LED display Displays the wireless status using ST1 green/red and ST2 green/red ( for details, see section 2.2.1,
“LEDDisplay”)
Security function AES 128 bit encryption
Implemented protocol Modbus (master) protocol Modbus (slave) protocol
Modbus master function
(/CM2, /MC option)2
Data can be written and read from
Modbus slave devices.
•Communicationcycle:
500 ms, 1 s, 2 s, 5 s, 10 s, 1 min
(If the receiver function is set to
wireless input unit, see the user’s
manual of the wireless input unit.)
Note: Only the above
communication cycles will work
properly.
•Numberofcommands:100
•Commandtypes:Off,read,write
•Connectiondestinationaddress:
1 to 247
•Transmissioncommand:
INT16, UINT16, INT32_B,
INT32_L, UINT32_B, UINT32_L,
FLOAT_B, FLOAT_L, BIT
— —
Modbus slave function
(/CS2 option) —
Data can be written and read
from Modbus master devices
(coordinators (/CM2 option)).
Data can be written and read from
Modbus master devices.
Configuration and
measurement communication
The following functions are available using the dedicated software.3
•GX20/GP20/GM10wirelesscommunicationsettings
•InformationaboutroutersconnectingtotheGX20/GP20/GM10
•GX20/GP20/GM10wirelesscommunicationstatusmonitoring
The following functions are
available using the dedicated
software.3
UT52A/MDL, UT32A/MDL wireless
communication configuration
UT52A/MDL, UT32A/MDL wireless
communication status monitoring
External interface for wireless
configuration
USB 2.0 (mini-B type), reboot switch: for rebooting the system after changing wireless settings
1 The communication distance varies depending on the installed antenna as follows:
Antenna type Line-of-sight distance
Coordinator Router
Sleeve antenna Sleeve antenna Approx. 800 m
Roof top antenna Roof top antenna Approx. 800 m

1-3
IM 04L51B01-41EN
Overview and Specifications
1
2
3
4
5
10
App
2 The communication channel function (/MC option) is required. Read data is written to
communication channels.
3 MH920 Console International, a console software application made by Oki Electric Industry Co.,
Ltd.
Number of connectable routers and number of connectable channels
depending on Modbus communication cycle
Number of GM routers Modbus communication cycle
500 ms 1 s 2 s
1 125 ch 370 ch 500 ch
2 80 ch 250 ch 500 ch
4 — 160 ch 500 ch
8 — — 320 ch
* 1 The number of channels for 1 word data (INT16, UINT16).
This varies depending on the processing load in the device and communication quality.
Connectable registers depending on the Modbus communication cycle of the
GX/GP/GM router
Number of UT routers Modbus communication cycle
500 ms 1 s 2 s 5 s
1 27 100 100 100
2 — 27 100 100
4 — — 27 100
8 — — — 58
* The number of readout registers when the GX20, GP20, or GM10 is the coordinator.
This varies depending on the processing load in the device and communication quality.
Dedicatedexternalantenna(soldseparately)*
Item Type
Sleeveantenna Rooftopantenna
Part No. A1061ER A1062ER
Installation environment Indoors Indoors and outdoors
Waterproof property Not waterproof Water resistant (IPX6)
Cable length — 2.5 m
Antenna type Dipole Monople
Maximum gain 3 dBi or less 2 dBi or less
Directivity No
Connector SMA-P(reverse)
Operating temperature range -20 to 65°C
Dimensions 196 mm (including the connector) 83 mm (including the base stand)
* Only dedicated antennas can be used.
1.2 Specifications

Blank

2-1
IM 04L51B01-41EN
Configuration and Connection
1
2
3
4
5
10
App
2.1 Configuration
2.1.1 Preparation, Configuration, and Operation Check
GX/GP/GM
To configure (Modbus settings, wireless communication settings) and check the operation of
the GX20,GP20, or GM10, follow the procedure below.
1
Modbus communication (serial communication) configuration
ConguretheModbuscommunicationsettingsbyreferringtotheGX/GPUser’s
Manual (IM 04L51B01-01EN) or the GM User’s Manual (IM 04L55B01-01EN) and
section2.1.2,“DefaultSettings,”andsection2.1.3,“CongurationExamples”inthis
manual.
• Communication(Serial)settings
GX/GPUser’sManual:1.18,“ConguringtheSerialCommunicationFunction(/
C2and/C3options)”
GMUser’sManual:2.19,“ConguringtheSerialCommunicationFunction(/C3
option)”
• Communicationchannelsettings
GX/GPUser’sManual:1.16,“ConguringCommunicationChannels(/MCop-
tion)”
GMUser’sManual:2.17,“ConguringCommunicationChannels(/MCoption)”
2
Maintenance console preparation
Download the maintenance console by following the link at the following URL, and
install it.
<http://www.smartdacplus.com/software/smart920/en/>
* The maintenance console is an application made by Oki Electric Industry Co., Ltd.
3
Configuration file preparation
Using the maintenance console, create a configuration file consisting of basic settings,
protocols, communication settings, and other wireless network settings according to
your wireless network configuration.
You can also use the maintenance console to configure the GX20, GP20, or GM10
directly without creating a configuration file.
Fordetailsonthewirelesscommunicationconguration,seechapters3,4,and5.
4
Wireless communication configuration (network configuration)
• ConnectthemaintenancePCtothewirelesscongurationconnectoroftheGX20,
GP20,orGM10withaminiUSBcable.Then,writethecongurationleintothe
wireless module.
• Afterwriting,presstherebootswitchontheGX20,GP20,orGM10torestartthe
system and apply the settings.
5
Networkjoinconfirmation
WhentheGX/GMjoinsanetwork,thegreenstatusST1LEDblinksslowly,andthe
green ST2 turns on. FordetailsontheLEDindication,seesection2.2.1,“Status
LEDIndication.”
* Turn the routers on after starting the coordinator. This will make network connection
authentication quicker.
Chapter 2 Configuration and Connection

2-2 IM 04L51B01-41EN
UT
To configure (Modbus settings, wireless communication settings) and check the operation of
the UT, follow the procedure below.
1
Modbus communication (serial communication) configuration
Configure the Modbus communication settings by referring to the UT User’s Manual
andsection2.1.2,“DefaultSettings,”andsection2.1.3,“ConfigurationExamples”in
this manual.
The UT communication parameter settings are shown below. Do not change them from
their default values. If you change them, communication will fail to work properly.
• Protocol:Modbus(RTU)
• Baudrate:9600bps
• Parity:None
• Stopbits:1bit
• Datalength:8bits
2
Maintenance console preparation
Download the maintenance console by following the link at the following URL, and
install it.
<http://www.smartdacplus.com/software/smart920/en/>
* The maintenance console is an application made by Oki Electric Industry Co., Ltd.
3
Configuration file preparation
Using the maintenance console, create a configuration file consisting of basic settings,
protocols, communication settings, and other wireless network settings according to
your wireless network configuration.
Do not change the wireless serial settings from their default values. If you change
them, communication will fail to work properly.
• Bitrate:115200bps
• Bitlength:8bits
• Stopbits:1bit
• Parity:None
You can also use the maintenance console to configure the UT directly without
creating a configuration file.
Fordetailsonthewirelesscommunicationconguration,seechapters3,4,and5.
4
Wireless communication configuration (network configuration)
Connect the maintenance PC to the UT’s wireless communication configuration port
with a mini USB cable. Then, write the configuration file into the wireless module. After
writing, press the reboot switch on the UT or remove the mini USB cable to restart the
system and apply the settings. (Hold down the reboot switch for several seconds until
the status LED turns off.)
5
Networkjoinconfirmation
WhentheGX/GMjoinsanetwork,*thegreenstatusST1LEDblinksslowly,andthe
green ST2 turns on.
* Turn the routers (UTs) on after starting the coordinator (GM10 /CM2 , GX20 /CM2 or GP20 /
CM2). This will make network connection authentication quicker.
GX70SM
For the configuration for connecting a GX70SM, see the wireless input unit user’s manual
(IM 04L57B01-01EN).
To configure a GX/GP/GM (release number 4.02 and later) that supports wireless input units,
use the latest maintenance console (by Oki Electric Industry Co., Ltd.).
2.1 Configuration

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IM 04L51B01-41EN
Configuration and Connection
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App
2.1.2 Default Settings
● Wirelesscommunicationparameters
Parameter Coordinator (/CM2) Router(/CS2),router
(UT)
Basic
configuration
Networkjoinmode Fastjoinmode
PAN ID (group number) 0001
Radio channel number 1ch
Short address — 0001
Low-speed moving mode — No
Network name MH920
Encryption key 00000000000000000000000000000001
Prefix 2001 : 0000 : 0000 : 0001 —
MAC address authentication No —
Antenna setup Hardware (external antenna)
Radio utilization rate
restriction
10.00%
Monitoring unit time of radio
transmission
60 seconds
Transmitter power output 20 mW
Retry times before route
switching Three times
Communication
setup
Bit rate 115200 bps
Bit length 8 bit
Stop bit 1 bit
Parity None
Equipment Connection — Yes
Protocol setup
Station number analysis Yes —
Data transmission interval
when transmitting to all the
child devices
Configuration not
necessary
—
Protocol type Modbus (RTU) —
Modbus (RTU) Presence of
broadcast address
No —
Other (ASCII) Configuration not
necessary
—
Add sender identification Default value: No
Packet filtering Yes (notification type)
Filter timeout on polling Configuration not necessary
Fixed route setup
Fixed route — No
Destination short address — Configuration not
necessary
Temporary detour — Configuration not
necessary
Station number
setup
Specification method of
Station numbers
List —
Station number list: Short
address
0001 —
Station number list: Station
number
01 —
2.1 Configuration

2-4 IM 04L51B01-41EN
● WirelesscommunicationModbusparameters(GX/GP/GM)
Communication (Serial) settings
Parameter Coordinator (/CM2) Router(/CS2)
Basic configuration Receiver Function Modbus master Modbus slave
Address 10 1
Data transfer* Baud rate 115200
Parity bit None
Stop bit 1 bit
Modbus master — —
Basic
configuration
Master function On/Off On
Configuration not
necessary
Communication Interval 1 s
Communication
timeout
1 s
Gap between
messages Off
Recovery action Retry Once
Wait time 5 s
Command
settings
Master command
number
1
Command settings Type Read
Slave 1
Data type INT32_L
Register 300001
Channel type Communication
channel
First-CH 0001
Last-CH 0001
* If you change the data transfer settings, communication will fail to work. Do not change them.
● WirelesscommunicationModbusparameters(UT)
Communication (Serial) settings
Parameter Router
Basic configuration Protocol* Modbus/RTU
Address 1
Baud rate* 9600
Parity bit* NONE
Stop bit* 1 bit
* If you change the data transfer settings, communication will fail to work. Do not change them.
Specify the same settings for gateway connection devices.
2.1 Configuration
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