YOKOGAWA GX20 User Manual
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YOKOGAWA GX20 User Manual

920 mhz wireless communication
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User's
Manual
Y okogawa Electric Corporation
Model
GX20/GP20/GM10
920 MHz Wireless Communication
(/CM2 and /CS2)
Model
UT52A/UT32A
920 MHz Wireless Communication
IM 04L51B01-41EN
2nd Edition

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  • Page 1 User’s Manual Model GX20/GP20/GM10 920 MHz Wireless Communication (/CM2 and /CS2) Model UT52A/UT32A 920 MHz Wireless Communication IM 04L51B01-41EN 2nd Edition Y okogawa Electric Corporation...

  • Page 3: Introduction

    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...
  • Page 4 Product) Model GX70SM IM 04L57B01-01EN Describes the configuration, management, and Wireless Input Uint User’s Manual maintenance of the GX70SM and the wireless input unit function of the GX20 (/CM2)/GP20 (/CM2) Paperless Recorders and GM10 (/CM2) Data Acquisition Unit. IM 04L51B01-41EN...

  • Page 5: Notes

    ● Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest YOKOGAWA dealer. ● Copying or reproducing all or any part of the contents of this manual without YOKOGAWA’s permission is strictly prohibited. Trademarks ● SMARTDAC+, SMARTDACPLUS, and UTAdvanced are registered trademarks of Yokogawa Electric Corporation. ● Microsoft and Windows are registered trademarks or trademarks of Microsoft Corporation in the United States and other countries.

  • Page 6: How To Use This Manual

    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. • Standard type: GX20-1/GP20-1/GM10-1 • Large memory type:...
  • Page 7 How to Use This Manual 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 Refers to the wireless communication hardware of this device. module* It specifically refers to the wireless communication coordinator module and wireless communication router module.

  • Page 8: Conventions Used In This Manual

    How to Use This Manual Conventions Used in This Manual Unit Denotes 1024. Example: 768K (file size) Denotes 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.

  • Page 9: Revision History

    How to Use This Manual Revision History Edition Model Product Description GX/GM Release number 4 New edition (Version 4.01) Style number 1 Release number 1 Style number 11 GX/GP Release number 4 Addition of GP20 (Version 4.02) Supports GX70SM Style number 2 Release number 4 (Version 4.02) Style number 1...
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  • Page 11: Table Of Contents

    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 Overview and Specifications Overview ..........................1-1 Specifications ........................1-2...
  • Page 12 Contents 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 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...

  • Page 13: Chapter 1 Overview And Specifications

    Chapter 1 Overview and Specifications 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.

  • Page 14: Specifications

    Specifications 1.2.1 Wireless Communication Function Functions Description Item Coordinator Router (GM10 (/CS2)) Router (UT) (GX20/GP20/GM10 (/CM2)) 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...
  • Page 15 500 ms — — — — — — * 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. Dedicated external antenna (sold separately)* Type Item Sleeve antenna Roof top antenna Part No.
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  • Page 17: Chapter 2 Configuration And Connection

    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. For details on the wireless communication configuration, see chapters 3, 4, and 5.
  • Page 18 Network join confirmation When the GX/GM joins a network,* the green status ST1 LED blinks slowly, and the 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).

  • Page 19: Default Settings

    2.1 Configuration 2.1.2 Default Settings ● Wireless communication parameters Parameter Coordinator (/CM2) Router (/CS2), router (UT) Network join mode Fast join mode PAN ID (group number) 0001 Radio channel number Short address — 0001 Low-speed moving mode — Network name MH920 Encryption key 00000000000000000000000000000001 Prefix 2001 : 0000 : 0000 : 0001 —...
  • Page 20 2.1 Configuration ● Wireless communication Modbus parameters (GX/GP/GM) Communication (Serial) settings Parameter Coordinator (/CM2) Router (/CS2) Basic configuration Receiver Function Modbus master Modbus slave Address Data transfer* Baud rate 115200 Parity bit None Stop bit 1 bit Modbus master — — Basic Master function On/Off configuration Communication Interval...

  • Page 21: Configuration Example (Gx/Gp-Gm)

    Configuration Example (GX/GP-GM) This section describes a configuration example in which one-to-one wireless communication is performed between a GX20/GP20 (coordinator, /CM2) and a GM10 (router, /CS2) to read the measured values of GM10 channel 0001 into GX20/GP20 communication channel C001 and display them.
  • Page 22 2.1 Configuration Communication (Serial) Settings From the setting menu, select Communication (Serial) settings. Select Basic settings. Set the following setup items. When you are finished, select Save. Setup item Value Receiver Function Modbus master Address Data transfer* Baud rate 115200 Parity bit None Stop bit...
  • Page 23 2.1 Configuration Communication Channel Settings From the setting menu, select Communication channel settings. Set On/Off, Span. Set the following setup items. When you are finished, select Save. If a message “Please set as recording channel” appears, select the close icon ( Setup item Value First-CH C001 Last-CH C001 On/Off, Span On/Off Decimal place Span lower Span Upper 100.0...
  • Page 24 Click Station number list. Enter “0001” in the Short address box and “01” in the Station number box, and then click Add to list. Click Save to module. Press the reboot switch on the wireless communication module or turn the GX20 off and then back on to apply the settings. Operation complete IM 04L51B01-41EN...

  • Page 25: Configuration Example (Gx/Gp-Ut)

    Configuration Example (GX/GP-UT) This section describes a configuration example in which one-to-one wireless communication is performed between a GX20/GP20 (coordinator, /CM2) and a UT (router) to read the measured values (PV) of the UT into GX20/GP20 communication channel C001 and display them.
  • Page 26 2.1 Configuration Communication (Serial) Settings From the setting menu, select Communication (Serial) settings. Select Basic settings. Set the following setup items. When you are finished, select Save. Setup item Value Receiver Function Modbus master Address Data transfer* Baud rate 115200 Parity bit None Stop bit...
  • Page 27 2.1 Configuration Display Settings From the setting menu, select Display settings. Select Group settings and then Group settings [Channel set]. From the list, select Communication channel and then C001. Select OK. Select Save. Operation complete Recording Settings From the setting menu, select Recording settings. Select Recording channel settings and then Display data, Trend waveform.
  • Page 28 Click Station number list. Enter “0001” in the Short address box and “01” in the Station number box, and then click Add to list. Click Save to module. Press the reboot switch on the wireless communication module or turn the GX20 off and then back on to apply the settings. Operation complete 2-12...

  • Page 29: Connection

    1 This table does not apply when determining the radio condition using the maintenance console software. 2 System error status. Using the maintenance console software, correct the installation environment to an appropriate condition. LED position (GM/GX/GP) GM10 GX20/GP20 (rear panel) ST1 green/red, ST2 green/red 2-13 IM 04L51B01-41EN...

  • Page 30: Connecting An External Antenna

    Sleeve antennas (not waterproof) are used indoors or inside a case. Sleeve antennas do not have directivity. They can also be bent and rotated to change the antenna direction. As such, they can be used anywhere indoors. GX20/GP20 GM10 Antenna insertion port...
  • Page 31 Roof top antennas (waterproof) are used when you want to install only the antenna in a remote location such as outdoors. There is a magnet on the bottom side, so they can be attached to metal boxes and the like. GX20/GP20 GM10 Antenna insertion port...
  • Page 32 2.2 Connection Sleeve Antenna (UT) Sleeve antennas (not waterproof) are used indoors or inside a case. Sleeve antennas do not have directivity. They can also be bent and rotated to change the antenna direction. As such, they can be used anywhere indoors. Antenna connection port Sleeve antenna...

  • Page 33: Chapter 3 Network Overview

    Chapter 3 Network Overview Wireless Communication Option 3.1.1 Wireless Communication Option The wireless communication option allows wired serial communication to be transformed into a wireless network configuration. Coordinators are equipped with wireless communication coordinator modules and routers with wireless communication router modules. 3.1.2 Network Join Mode You can select the network join mode for wireless communication modules.

  • Page 34: When Wireless Devices Are Used As Low-Speed Moving Bodies

    3.1 Wireless Communication Option 3.1.3 When Wireless Devices Are Used as Low-Speed Moving Bodies When a coordinator and routers are configured for low-speed movement, data acquisition through serial communication becomes possible between data acquisition devices and various sensors and the like moving at low speeds (4 km/hr or less). Such networks consist of coordinator modules, repeaters, and router modules installed in low-speed moving devices all configured for low-speed movement.

  • Page 35: Multidrop Connection

    3.1 Wireless Communication Option 3.1.4 Multidrop Connection By using the serial gateway function, a UT with a wireless function can connect to a RS485 device. Coordinator Wireless multi-hop network Router Serial gateway RS485 Up to 31 3.1.5 Packet Filtering Setup When the wireless condition is poor during packet transmission, routers temporarily communicate through other wireless devices instead of through the normal communication route in order to improve reachability.

  • Page 36: Functions

    Functions The following table shows the main functions available in the product. Function Description Coordinator Router module module Fast network joining A function that reduces the network join time of router modules. Low-speed moving A function incorporated into low- mode speed moving bodies to enable sensor information collection and data communication.

  • Page 37: Network Numbers And Network Names

    Network Numbers and Network Names 3.3.1 Channel Numbers A coordinator must be assigned a channel number. Routers perform channel scanning among preassigned channel numbers on peripheral wireless devices and automatically select the same channel number as their priority wireless communication modules, which are their connection destinations.

  • Page 38: Pan Id (Group Number)

    3.3 Network Numbers and Network Names 3.3.2 PAN ID (Group Number) Devices equipped with wireless communication modules configure wireless personal area networks (PANs) under a coordinator. A PAN-ID is an identifier given to a network (layer 3) under the coordinator. The coordinator must specify the PAN-ID in addition to the channel number.

  • Page 39: Multi-Hop Communication

    Multi-hop Communication 3.4.1 Network Participation and Route Configuration A wireless multi-hop network can be configured by using a single coordinator and several routers. Routers, after they start, search the network until a connection destination is found. Then, they join the wireless multi-hop network upon receiving approval from the coordinator and communicate using their assigned IPv6 addresses. IPv6 addresses are automatically assigned using the fixed prefix information set in the coordinator and the short addresses assigned to each coordinator and router.

  • Page 40: Network Scale Setup

    3.4 Multi-hop Communication 3.4.2 Network Scale Setup This function enables parameter setup for each of the three available network sizes (1 to 30 units, 31 to 60 units, and 61 to 100 units) so that you can use the optimal parameter setup. The transmission frequency of control packets is adjusted according to the network size in order to perform stable network communication.

  • Page 41: Chapter 4 Using The Maintenance Console

    Chapter 4 Using the Maintenance Console Overview of the Maintenance Console The maintenance console is a tool that can be used to configure the environment and the wireless communication module. By using the maintenance console, you can configure the environment of the PC in which the console is installed (the maintenance console PC) and the wireless communication module.

  • Page 42: Installation

    Installation 4.2.1 System Requirements The system requirements for the maintenance console are shown below. Check the requirements before installing the console in the PC. ■ Hardware requirements Item Requirement Core Duo 1 GHz or equivalent or better Memory 1 GB or more Hard disk (required free space) 100 MB Interface USB*1 *1: The USB version is 1.1 or 2.0.

  • Page 43: Connection And Startup

    Connection and Startup 4.3.1 Connection Configuration Connect the maintenance console PC and the device (GX20/GP20/GM10/UT) equipped with the wireless communication module using a USB cable. Equipped USB cable Maintenance console PC GX20GP20 Equipped USB cable Maintenance console PC GM10 Equipped...

  • Page 44: Maintenance Console's Main Window

    4.3 Connection and Startup 4.3.3 Maintenance Console’s Main Window Configuration using the maintenance console always start from this window. This window is also where you return when you finish a configuration. Item Description Coordinator A Coordinator configuration window opens. configuration For details on the settings, see section 4.5, “Configuring the Coordinator Module,” and section 4.7, “Configuring the Coordinator Module (low-speed moving bodies).”...

  • Page 45: Configuring The Maintenance Console Environment

    Configuring the Maintenance Console Environment 4.4.1 Environment Setup Window Use the Environment setup window to configure the operating environment of the maintenance console PC. How to open this window: ● In the main window, click Environment setup. ● In the main window, click Coordinator configuration. In the coordinator configuration selection window, click the Environment setup menu. ● In the main window, click Router configuration.
  • Page 46 4.4 Configuring the Maintenance Console Environment Item Description COM port Set the COM port that the maintenance console and the wireless communication module will communicate through. Click Set to set the entered information and save it in the maintenance console PC. Password Enter the password for connecting the maintenance console to the password wireless communication module (5 to 8 characters).
  • Page 47 Configuring the Coordinator Module This section explains the configuration of a coordinator module when routers are installed in fixed locations. When using wireless devices as low-speed moving bodies, see section 4.7, “Configuring the Coordinator Module (low-speed moving bodies).” 4.5.1 Setup Procedure Step name A step that needs to be performed …...
  • Page 48 4.5 Configuring the Coordinator Module 4.5.2 Coordinator configuration selection window Use the coordinator configuration selection window to display the coordinator module configuration window or display the status. How to open this window: • In the main window, click Coordinator configuration. You can also open this window by clicking Menu and then Coordinator configuration in the router configuration selection window.
  • Page 49 4.5 Configuring the Coordinator Module 4.5.3 Coordinator Configuration Window In the Coordinator configuration window, you can configure the wireless communication module and set various terminal information. How to open this window: • In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Module setup. In the top area of the Coordinator configuration window, buttons for connecting and disconnecting the wireless communication module, buttons for loading and saving value set in the wireless communication module, and buttons for loading and saving configuration files...
  • Page 50 4.5 Configuring the Coordinator Module ■ Saving default values (Save default button) Click Save default after setting the terminal information to save the various values as maintenance console’s default values. The information on each of the Basic configuration, Communication setup, Protocol setup, and Station number setup tabs and the Detailed view check box state are saved here. The default values that are saved can be loaded into the corresponding settings in the maintenance console by clicking Load default.
  • Page 51 4.5 Configuring the Coordinator Module Connecting to the Wireless Communication Coordinator Module When you connect the maintenance console to a wireless communication module, the module information can be displayed in the Coordinator configuration window and apply the settings you set in the Coordinator configuration window to the module. ■ Connecting to the wireless communication coordinator module (Connect button) Click Connect in the top area of the Coordinator configuration window to connect to the...
  • Page 52 4.5 Configuring the Coordinator Module Disconnecting from the Wireless Communication Coordinator Module Click Disconnect in the top area of the Coordinator configuration window to disconnect from the wireless communication module. Note Do not remove the USB cable or cut off the power supply when the maintenance console is connected to a wireless communication module.
  • Page 53 4.5 Configuring the Coordinator Module ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Network Join Mode Set the network join mode (Fast join mode or V3-compatible ü Module setup mode). If there are wireless devices with firmware version v3.x in the network, select V3-compatible mode.
  • Page 54 4.5 Configuring the Coordinator Module ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module. You can change the terminal information based on the loaded information. Note • The factory default Network join mode is V3-compatible mode. Configuring Serial Communication (Communication setup tab) Configure the serial communication settings between the wireless communication module and devices.
  • Page 55 4.5 Configuring the Coordinator Module ■ Setting the information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Bit rate Select 115200 bps. Bit length The bit length is fixed to 8 bit. Stop bit Select the stop bit (1 bit).
  • Page 56 4.5 Configuring the Coordinator Module ■ Setting the information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Station number analysis (*1) For the coordinator, set Station number analysis to No or ü...
  • Page 57 4.5 Configuring the Coordinator Module ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module. You can change the protocol setup based on the loaded information. Station number setup tab Set the specification method of station numbers for devices connecting to routers. The items on the Station number setup tab are the same regardless of whether the Detailed view check box is selected.
  • Page 58 4.5 Configuring the Coordinator Module ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Specification Select the specification method of Station numbers (List, Range). (*) method of Station ● If you select List, click Station number list to open a Station number list numbers window, and set the station number list.

  • Page 59: Mac Address List Window (Sub Window)

    4.5 Configuring the Coordinator Module 4.5.4 MAC Address List Window (sub window) In the MAC address list window, you can set wireless devices to allow connection to the wireless communication coordinator module and wireless devices to refuse. How to open this window: ● In the main window, click Coordinator configuration.
  • Page 60 4.5 Configuring the Coordinator Module ■ To set the allow radio device list Enter the following items to create the allow radio device list. Click Save to module to apply the allow radio device list to the wireless communication module. Item Description MAC address Enter the MAC address (64 bits) of the router you want to add to the allow radio device list.
  • Page 61 4.5 Configuring the Coordinator Module Refuse radio device list tab In the wireless communication coordinator module, set MAC addresses of routers that you want to prevent from joining the wireless network. ■ To set the refuse radio device list Enter the following items to create the refuse radio device list. Click Save to module to apply the refuse radio device list to the wireless communication module. Item Description MAC address...

  • Page 62: Station Number List Window (Sub Window)

    4.5 Configuring the Coordinator Module ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module. You can change the refuse radio device list based on the loaded information. ■ To save the refuse radio device list After setting the refuse radio device list, click Save configuration. The refuse radio device list is saved with the specified file name in the specified folder.
  • Page 63 4.5 Configuring the Coordinator Module ■ To register a station number list Enter the following items to create the station number list. Click Save to module to apply the contents of the station number list to the wireless communication module. Item Description Short address Enter the short address (0001 to FFFD) of the router you want to add to the list. Click Add to list to add the address along with the information entered in the Station number box to the list.

  • Page 64: Status Window

    4.5 Configuring the Coordinator Module Note Before loading the station number list from a con, perform either of the procedures below. • Connect a wireless communication module with updated configuration, and then load the settings by using Load from module in the Coordinator configuration window. For details, see “Loading the current settings from the wireless communication module” in “Configuring the Interface (Protocol setup tab)”. • Load the setting from a configuration file saved in advance by using Load Configuration in the Coordinator configuration window. For details, “Loading the configuration file (Load Configuration button)” in the Coordinator configuration window.

  • Page 65: Setting The Network Scale (Network Scale Setup)

    4.5 Configuring the Coordinator Module The following figure shows the window with the Detailed view check box selected. If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed. Item Description Simple...
  • Page 66 4.5 Configuring the Coordinator Module ■ Setting the information Click Connect, set the following items, and click Save to module to apply the set information to the wireless communication module. Item Description Use child device for low-speed Do not select this check box. moving mode Device type in a network Select the type of device in the network from the following: • Child (fixed)

  • Page 67: Configuring Router Modules

    Configuring Router Modules This section explains the configuration of router modules when routers are installed in fixed locations. When using routers as low-speed moving bodies, see section 4.8, “Configuring Router Modules (low-speed moving bodies).” 4.6.1 Setup Procedure Configure router modules by following the procedure below. Step name A step that needs to be performed … A step that is performed when the condition written on the …...

  • Page 68: Router Configuration Selection Window

    4.6 Configuring Router Modules 4.6.2 Router configuration selection window Use the router configuration selection window to display the wireless communication router module configuration window or display the status. How to open this window: In the main window, click Router configuration. You can also open this window by clicking Menu and then Router configuration in the router configuration selection window.

  • Page 69: Router Configuration Window

    4.6 Configuring Router Modules 4.6.3 Router Configuration Window In the Router configuration window, you can configure the wireless communication module and set various types of information. How to open this window: • In the main window, click Router configuration. In the router configuration selection window, click the Module setup menu. In the top area of the Router configuration window, buttons for connecting and disconnecting the wireless communication router module, buttons for loading and saving value set in the wireless communication router module, and buttons for loading and saving configuration files are available.
  • Page 70 4.6 Configuring Router Modules Note • * To apply the settings entered on the tabs of the Router configuration window to the wireless communication router module, click Save to module, and then restart the module by turning the power off and then back on. • Entering zeros for the MH920 Console International settings causes those settings to be deleted. Be sure to enter non-zero values in all the settings. ■ Saving default values (Save default button) Click Save default after setting the terminal information to save the various values as maintenance console’s default values.
  • Page 71 4.6 Configuring Router Modules Connecting to a Wireless Communication Router Module (Connect button) When you connect the maintenance console to a wireless communication module, the module information can be displayed in the Router configuration window and apply the settings you set in the Router configuration window to the module. To connect to a wireless communication router module (Connect button) Click Connect in the top area of the Router configuration window to connect to the wireless communication module.
  • Page 72 4.6 Configuring Router Modules Disconnecting from a Wireless Communication Router Module (Disconnect button) Click Disconnect in the top area of the Router configuration window to disconnect from the wireless communication module. Note Do not remove the USB cable or cut off the power supply when the maintenance console is connected to a wireless communication module. If you perform these acts while data is being written to the wireless communication module (during firmware updating or configuration), the configuration information may become corrupted.
  • Page 73 4.6 Configuring Router Modules ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Network join Set the network join mode (Fast join mode or V3-compatible mode). ü mode If there are wireless devices with firmware version v3.x in the network, select V3-compatible mode. Low-speed Select No if the router module is not going to be installed in a low-speed ü...
  • Page 74 4.6 Configuring Router Modules ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module. You can change the terminal information based on the loaded information. Note • The factory default Network join mode is V3-compatible mode, regardless of the firmware version. Configuring Serial Communication (Communication setup tab) Configure the serial communication settings between the wireless communication module and devices.
  • Page 75 4.6 Configuring Router Modules ■ Setting the information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Equipment Select whether there are connections to devices. To use the module only as a Connection repeater, set Equipment Connection to No. Bit rate Select 115200 bps.
  • Page 76 4.6 Configuring Router Modules ■ Setting the information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Packet filtering Set the packet filtering function to None, Yes (notification type), or Yes (polling type). If set to Yes (polling type), delayed packets and the like are discarded according to filter timeouts that occur during polling (coordinator to router to coordinator).
  • Page 77 4.6 Configuring Router Modules Setting a Fixed Route (Fixed route setup tab) You can connect the wireless communication module to a specific wireless communication module to fix the communication route. The items on the Fixed route setup tab are the same regardless of whether the Detailed view check box is selected. ■ Setting the information Set the following items.

  • Page 78: Status Window

    4.6 Configuring Router Modules 4.6.4 Status Window The status window shows the wireless communication router module information. Before showing this window, connect to the wireless communication router module. How to open this window: ● In the main window, click Router configuration. In the router configuration selection window, click Status. Clicking Router configuration in the main window and clicking Status in the router configuration selection window shows a message indicating that status information will be loaded from the wireless communication module.
  • Page 79 4.6 Configuring Router Modules If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed. Item Description Simple view MAC address A 64 bit MAC address is displayed. ü PAN ID (group number) The PAN ID in use is displayed.

  • Page 80: Setting The Network Scale (Network Scale Setup)

    4.6 Configuring Router Modules 4.6.5 Setting the Network Scale (Network scale setup) Optimize the control signal transmission frequency of the wireless communication module according to the network scale. How to open this window: ● In the main window, click Router configuration. In the router configuration selection window, click Network scale setup on the Tool menu. ■ Setting the information Click Connect, set the following items, and click Save to module to apply the set information to the wireless communication module.
  • Page 81 4.6 Configuring Router Modules Note ● To apply the settings entered in the Network scale setup window to the wireless communication module, click Save to module, and then restart the module by turning the main unit’s power off and then back on or by pressing the reboot switch. ● Match the “Device type in a network” and “Number of devices in a network” settings between the coordinator and router. ● Be sure to match the Number of devices in a network to the number of routers with the same PAN ID (group number). In addition, be sure to set the same network scale for routers with the same PAN ID (group number).

  • Page 82: Configuring The Coordinator Module

    Configuring the Coordinator Module (Low-speed moving body) This section explains the configuration of a coordinator module when routers are used in a low-speed moving state. When using routers in fixed locations, see section 4.5, “Configuring the Coordinator Module.” 4.7.1 Setup Procedure Configure the coordinator module by following the procedure below. Step name A step that needs to be performed …...

  • Page 83: Coordinator Configuration Selection Window

    4.7 Configuring the Coordinator Module (Low-speed moving body) Coordinator configuration selection window Use the coordinator configuration selection window to display the coordinator module configuration window or display the status. How to open this window: • In the main window, click Coordinator configuration. You can also open this window by clicking Menu and then Coordinator configuration in the router configuration selection window.

  • Page 84: Coordinator Configuration Window

    4.7 Configuring the Coordinator Module (Low-speed moving body) Coordinator Configuration Window In the Coordinator configuration window, you can configure the wireless communication module and set various terminal information. How to open this window: • In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Module setup. In the top area of the Coordinator configuration window, buttons for connecting and disconnecting the wireless communication module, buttons for loading and saving value set in the wireless communication module, and buttons for loading and saving configuration files are available.
  • Page 85 4.7 Configuring the Coordinator Module (Low-speed moving body) ■ Saving default values (Save default button) Click Save default after setting the terminal information to save the various values as maintenance console’s default values. The information on each of the Basic configuration, Communication setup, Protocol setup, and Station number setup tabs and the Detailed view check box state are saved here. The default values that are saved can be loaded into the corresponding settings in the maintenance console by clicking Load default.
  • Page 86 4.7 Configuring the Coordinator Module (Low-speed moving body) Connecting to the Wireless Communication Coordinator Module When you connect the maintenance console to a wireless communication module, the module information can be displayed in the Coordinator configuration window and apply the settings you set in the Coordinator configuration window to the module. ■ Connecting to the wireless communication coordinator module (Connect button) Click Connect in the top area of the Coordinator configuration window to connect to the...
  • Page 87 4.7 Configuring the Coordinator Module (Low-speed moving body) Disconnecting from the Wireless Communication Coordinator Module Click Disconnect in the top area of the Coordinator configuration window to disconnect from the wireless communication module. Note Do not remove the USB cable or cut off the power supply when the maintenance console is connected to a wireless communication module.
  • Page 88 4.7 Configuring the Coordinator Module (Low-speed moving body) ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Network join mode Select V3-compatible mode. (*1) ü Preferred PAN ID (group Enter the preferred PAN ID (0001 to FFFE) to connect to. ü...
  • Page 89 4.7 Configuring the Coordinator Module (Low-speed moving body) Configuring Serial Communication (Communication setup tab) Configure the serial communication settings between the wireless communication module and devices. The items on the Communication setup tab are the same regardless of whether the Detailed view check box is selected. ■ Setting the information Set the following items.
  • Page 90 4.7 Configuring the Coordinator Module (Low-speed moving body) Configuring the Interface (Protocol setup tab) Set the interface information (protocol) used between the wireless communication module and the connected device. The following figure shows the window with the Detailed view check box selected. If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed.
  • Page 91 4.7 Configuring the Coordinator Module (Low-speed moving body) ■ Setting the information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view For the coordinator, set Station number analysis to No Station number analysis (*1) ü or Yes. The settings for the station number analysis selected here are enabled.
  • Page 92 4.7 Configuring the Coordinator Module (Low-speed moving body) Station number setup tab Set the specification method of station numbers for devices connecting to routers. The items on the Station number setup tab are the same regardless of whether the Detailed view check box is selected. ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module.

  • Page 93: Mac Address List Window (Sub Window)

    4.7 Configuring the Coordinator Module (Low-speed moving body) 4.7.2 MAC Address List Window (sub window) In the MAC address list window, you can set wireless devices to allow connection to the wireless communication coordinator module and wireless devices to refuse. How to open this window: ● In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Module setup.
  • Page 94 4.7 Configuring the Coordinator Module (Low-speed moving body) ■ To set the allow radio device list Enter the following items to create the allow radio device list. Click Save to module to apply the allow radio device list to the wireless communication module. Item Description MAC address Enter the MAC address (64 bits) of the router you want to add to the allow radio device list.
  • Page 95 4.7 Configuring the Coordinator Module (Low-speed moving body) Refuse radio device list tab In the wireless communication coordinator module, set MAC addresses of routers that you want to prevent from joining the wireless network. ■ To set the refuse radio device list Enter the following items to create the refuse radio device list. Click Save to module to apply the refuse radio device list to the wireless communication module. Item Description MAC address...
  • Page 96 4.7 Configuring the Coordinator Module (Low-speed moving body) Note • The addition and deletion of wireless communication modules to refuse the connection of are applied immediately without the restarting of the coordinator module. However, if MAC address authentication is registered for the first time, you must restart the coordinator module. • If you want to refuse the connection of a wireless communication module that is already connected, add the module to the wireless device list and then disconnect the applicable wireless communication module such as by restarting the wireless communication coordinator module.

  • Page 97: Station Number List Window (Sub Window)

    4.7 Configuring the Coordinator Module (Low-speed moving body) 4.7.3 Station Number List Window (sub window) In the Station number list window, register combinations of routers’ short addresses and station numbers of devices connected to the routers. How to open this window: • In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Module setup.
  • Page 98 4.7 Configuring the Coordinator Module (Low-speed moving body) ■ To delete information from the station number list Enter a check mark in the Delete column of the entry you want to delete, and click Remove from list. The selected entry is deleted from the list. Click Save to module to apply the contents of the station number list to the wireless communication module. ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module.

  • Page 99: Status Window

    4.7 Configuring the Coordinator Module (Low-speed moving body) 4.7.4 Status Window The status window shows the wireless communication coordinator module information. How to open this window: • In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Status. Clicking Status automatically establishes a connection with the wireless communication module and shows a message indicating that status information will be loaded from the wireless communication module.
  • Page 100 4.7 Configuring the Coordinator Module (Low-speed moving body) The following figure shows the window with the Detailed view check box selected. If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed. Item Description Simple view...

  • Page 101: Setting The Network Scale (Network Scale Setup)

    4.7 Configuring the Coordinator Module (Low-speed moving body) 4.7.5 Setting the Network Scale (Network scale setup) Optimize the control signal transmission frequency of the wireless communication module according to the network scale. How to open this window: ● In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Network scale setup on the Tool menu. ■ Setting the information Click Connect, set the following items, and click Save to module to apply the set information to the wireless communication module.
  • Page 102 4.7 Configuring the Coordinator Module (Low-speed moving body) Note ● To apply the settings entered in the Network scale setup window to the wireless communication module, click Save to module, and then restart the module by turning the power off and then back on. ● Be sure to match the “Number of devices in a network” to the number of routers with the same PAN ID (group number). In addition, be sure to set the same network scale for routers with the same PAN ID (group number). Otherwise, data omission or router disconnection may occur. ● For wireless communication modules with the Network join mode set to Fast join mode, the Use child device for low-speed moving mode check box is not available.

  • Page 103: Configuring The Router Module (Low-Speed Moving Body)

    Configuring the Router Module (Low-speed moving body) This section explains the configuration of a router module when routers are used in a low- speed moving state. When using routers in fixed locations, see section 4.6, “Configuring the Router Module.” 4.8.1 Setup Procedure Configure the router module by following the procedure below. Step name … A step that needs to be performed A step that is performed when the condition written on the …...

  • Page 104: Router Configuration Selection Window

    4.8 Configuring the Router Module (Low-speed moving body) 4.8.2 Router configuration selection window Use the router configuration selection window to display the wireless communication router module configuration window or display the status. How to open this window: In the main window, click Router configuration. You can also open this window by clicking Menu and then Router configuration in the router configuration selection window.

  • Page 105: Router Configuration Window

    4.8 Configuring the Router Module (Low-speed moving body) 4.8.3 Router Configuration Window In the Router configuration window, you can configure the wireless communication module and set various types of information. How to open this window: • In the main window, click Router configuration. In the router configuration selection window, click the Module setup menu. In the top area of the Router configuration window, buttons for connecting and disconnecting the wireless communication router module, buttons for loading and saving value set in the wireless communication router module, and buttons for loading and saving configuration files are available.
  • Page 106 4.8 Configuring the Router Module (Low-speed moving body) Note • * To apply the settings entered on the tabs of the Router configuration window to the wireless communication router module, click Save to module, and then restart the module by turning the power off and then back on. • Entering zeros for the MH920 Console International settings causes those settings to be deleted. Be sure to enter non-zero values in all the settings. • When a wireless communication router module is used in low-speed moving mode, the fixed route setting is not applied. ■ Saving default values (Save default button) Click Save default after setting the terminal information to save the various values as maintenance console’s default values.
  • Page 107 4.8 Configuring the Router Module (Low-speed moving body) Connecting to a Wireless Communication Router Module (Connect button) When you connect the maintenance console to a wireless communication module, the module information can be displayed in the Router configuration window and apply the settings you set in the Router configuration window to the module. To connect to a wireless communication router module (Connect button) Click Connect in the top area of the Router configuration window to connect to the wireless communication module.
  • Page 108 4.8 Configuring the Router Module (Low-speed moving body) Disconnecting from a Wireless Communication Router Module (Disconnect button) Click Disconnect in the top area of the Router configuration window to disconnect from the wireless communication module. Note Do not remove the USB cable or cut off the power supply when the maintenance console is connected to a wireless communication module. If you perform these acts while data is being written to the wireless communication module (during firmware updating or configuration), the configuration information may become corrupted.
  • Page 109 4.8 Configuring the Router Module (Low-speed moving body) ■ Setting the terminal information Set the following items. Click Save to module to apply the set information to the wireless communication module. Item Description Simple view Network join mode Select V3-compatible mode. (*1) ü Low-speed moving mode Select Yes. ü Preferred PAN ID to Enter the preferred PAN ID (0000 to FFFE) to connect to. ü...
  • Page 110 4.8 Configuring the Router Module (Low-speed moving body) Configuring Serial Communication (Communication setup tab) Configure the serial communication settings between the wireless communication module and devices. The items on the Communication setup tab are the same regardless of whether the Detailed view check box is selected. ■ Setting the information Set the following items.
  • Page 111 4.8 Configuring the Router Module (Low-speed moving body) Configuring Packet Filtering (Packet filtering tab) Configure the packet filtering settings to use between the wireless communication module and devices. Packet filtering filters unneeded data received from devices. If responses from devices take longer than the specified timeout value, the data is discarded. The following figure shows the window with the Detailed view check box selected. If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed.

  • Page 112: Status Window

    4.8 Configuring the Router Module (Low-speed moving body) ■ Loading the current settings from the wireless communication module Click Load from module to load the current settings from the wireless communication module. You can change the packet filtering settings based on the loaded information. 4.8.4 Status Window The status window shows the wireless communication router module information. Before showing this window, connect to the wireless communication router module.
  • Page 113 4.8 Configuring the Router Module (Low-speed moving body) If you remove the Detailed view check box, only the items with a check mark in the Simple view column of the next table are displayed. Item Description Simple view MAC address A 64 bit MAC address is displayed. ü...

  • Page 114: Setting The Network Scale (Network Scale Setup)

    4.8 Configuring the Router Module (Low-speed moving body) 4.8.5 Setting the Network Scale (Network scale setup) Optimize the control signal transmission frequency of the wireless communication module according to the network scale. How to open this window: ● In the main window, click Router configuration. In the router configuration selection window, click Network scale setup on the Tool menu. ■ Setting the information Click Connect, set the following items, and click Save to module to apply the set information to the wireless communication module.
  • Page 115 4.8 Configuring the Router Module (Low-speed moving body) Note ● To apply the settings entered in the Network scale setup window to the wireless communication module, click Save to module, and then restart the module by turning the main unit’s power off and then back on or by pressing the reboot switch. ● Be sure to match the Number of devices in a network to the number of routers with the same PAN ID (group number). In addition, be sure to set the same network scale for routers with the same PAN ID (group number).

  • Page 116: Other Functions (Tool Menu)

    Other Functions (Tool Menu) This section describes the functions that are available on the Tool menu of the coordinator configuration selection window or router configuration selection window. The following functions are available. ● Display topology ● Get Log ● Firmware update ● Cancel radio transmission time display ● Restore factory preset Displaying the Topology (Display topology) The topology (network connection configuration) from the wireless communication coordinator module to the routers is displayed.
  • Page 117 4.9 Other Functions (Tool Menu) ■ Loading the information from the wireless communication module Click Connect to connect to the wireless communication coordinator module. If a password prompt window appears, see “If Omit Password is set to No” in section 4.5.3, “Coordinator Configuration Window.” Click Get topology to load information from the wireless communication coordinator module. The following topology information appears. Nothing is displayed if there are no routers, sensors. Item Description Simple...
  • Page 118 4.9 Other Functions (Tool Menu) ■ To check the communication with the displayed routers With the topology information loaded from the wireless communication coordinator module showing, click Confirm child devices. Whether communication to the displayed routers is possible is confirmed (reachability check), a message indicating that the confirmation result has been saved to a file is displayed, and then the following confirmation result is displayed. ● Rows containing routers that returned responses are displayed in blue.
  • Page 119 4.9 Other Functions (Tool Menu) ■ To download logs to the maintenance console PC Select the check boxes for the logs you want to load, and click Load. The logs are saved with the following file names in the specified folder (default folder: C:\OKI\MH920 Console International\Node_Log\). Log type File name Communication log MAC address_COM_date and time.txt Failure log MAC address_ERR_date and time.txt...
  • Page 120 4.9 Other Functions (Tool Menu) ■ To update the wireless communication module firmware You can update the firmware as follows: Connect to the wireless communication module. Click Connect to connect to the wireless communication module. If a password prompt window appears, see “If Omit Password is set to No” in section 4.5.3, “Coordinator Configuration Window.” Check the firmware version of the wireless communication module. Click Load to display the current firmware versions in the Active version and Save version boxes.
  • Page 121 4.9 Other Functions (Tool Menu) Canceling the radio transmission time display (Cancel radio transmission time display) When the wireless communication module displays the radio transmission time display, you can cancel the display from the maintenance console. How to open this window: ● In the main window, click Coordinator configuration. In the coordinator configuration selection window, click Cancel radio transmission time display on the Tool menu.
  • Page 122 4.9 Other Functions (Tool Menu) Restore factory preset You can restore the settings of the connected wireless communication module to their factory default values. Note When you execute Restore factory preset, all the current settings are cleared. Save the settings to a configuration file in advance. Note Settings that result by performing this operation are different from the default settings of SMARTDAC+ and UTAdvanced.

  • Page 123: Measurement Tool

    4.10 Measurement tool MH920 Console International (maintenance console) has a channel noise scan tool and communication test tool as measurement tools. 4.10.1 Channel Noise Scan Tool The channel noise scan tool measures the RSSI values (reception signal strength) of the specified channel at a given time interval.
  • Page 124 4.10 Measurement Tool Check the LED status of the wireless communication module. Check that ST1 (green/red) and ST2 (green/red) of the wireless communication module are as shown in the following table, and then proceed to the next step. LED indication in measurement mode and the selected measurement tool type Measurement tool type ST1 (green/red) ST2 (green/red)
  • Page 125 4.10 Measurement Tool Performing a channel noise scan Perform a channel noise scan by following the procedure below. Note While a measurement is in progress, do not turn off the wireless communication module or remove the USB cable. If you do, an error message will appear, and the channel noise scan tool will be forcibly closed.
  • Page 126 4.10 Measurement Tool Specify the COM port that the wireless communication module is connected to. Click the COM port drop-down list, select the COM port that the wireless communication module is connected to, and then click Open. If the COM port does not appear, check the power state of the wireless communication module and the USB cable connection.
  • Page 127 4.10 Measurement Tool Click Start to start the measurement. The measurement results are displayed as follows: Item Description Maximum RSSI The maximum RSSI value among the scan results of all channels Minimum RSSI The minimum RSSI value among the scan results of all channels Average RSSI The average RSSI value among the scan results of all channels ● While a measurement is in progress, the background of the channel number being...

  • Page 128: Communication Test Tool

    4.10 Measurement Tool 4.10.2 Communication Test Tool The communication test tool is used to measure the RSSI values and packet error rate (PER) between two wireless communication modules. You can configure one wireless communication module for transmitting and another for receiving and perform tests to confirm the wireless communication quality in the actual installation environment in advance.
  • Page 129 4.10 Measurement Tool The following window appears. Specify the COM port that the sender wireless communication module is connected to. Click the COM port drop-down list, select the COM port that the wireless communication module is connected to, and then click Open. Specify the channel for sending radio signals.
  • Page 130 4.10 Measurement Tool Open the Communication test (Receiver) window. With Communication test mode (Receiver) selected in the measurement tool selection window (the window shown below), click Launch tool. The following window appears. Specify the COM port that the receiver wireless communication module is connected to. Click the COM port drop-down list, select the COM port that the wireless communication module is connected to, and then click Open.
  • Page 131 4.10 Measurement Tool Performing a communication test After configuring the second wireless communication module to be the receiver, start the communication test on the same module. In the Communication test (Receiver) window, specify the measurement duration and the save destination of the measurement result file (if necessary). Set the measurement duration in unit of seconds in the range of 1 to 600000 seconds.
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  • Page 133: Chapter 5 List Of Settings

    Chapter 5 List of Settings List of Settings 5.1.1 Overview of Configuration Files A configuration file holds various maintenance settings of a wireless communication module. By creating a configuration file (in csv format) according to the environment, you can simply load the file in the maintenance console to apply the settings to a wireless communication module at once.

  • Page 134: Basic Configuration Items

    5.1 List of Settings 5.1.2 Basic Configuration Items These items are for entering the terminal information of the wireless communication module. The following table shows the items, their description, and whether they can be set. Item Description Coordinator Router module module Network join mode Set the network join mode (Fast join mode or...

  • Page 135: Communication Setup Items

    5.1 List of Settings 5.1.3 Communication Setup Items These items are for entering the serial interface information between the wireless communication module and motherboard. The following table shows the items, their description, and whether they can be set. Item Description Coordinator Router module module...

  • Page 136: Station Number Setup Items

    5.1 List of Settings 5.1.6 Station Number Setup Items Enter the specification method of station numbers. The following table shows the items, their description, and whether they can be set. Item Description Coordinator Router module module Specification Select the specification method of Station Required method of Station numbers (List, Range).

  • Page 137: Appendix

    Appendix Appendix 1 Troubleshooting Unable to Connect to Network Unable to join network Blinking red Cause: Wireless device failure • • • • • • • • • • • To No. 1-1 Check ST1 LED Blinking red Cause: Wireless device configuration error • • • To No.
  • Page 138 Appendix 1 Troubleshooting Unable to acquire data Unable to acquire data ST1 LED “Slow green blinking” (Interval: 1.0 s) Blinking red Cause: Low level radio signal • • • • • • • • • • • • • • To No. 2-1 ST2 LED “Green solid”...
  • Page 139 Appendix 1 Troubleshooting Corrective action 2-4 Cause: Sensor configuration error and the like The sensors may be turned off. Check the sensor power supplies. The sensor station numbers may be not correct. Check the sensor station numbers. Sensors may have malfunctioned. Change the sensors. Check that the packet filtering function’s enabled/disabled state in Protocol setup are matched between the coordinator and routers.
  • Page 140 Appendix 1 Troubleshooting Long time to acquire data Long time to acquire data ST1 LED “Slow green blinking” (Interval: 1.0 s) Cause: Low level radio signal • • • • • • • • • • • • • • • • • • • • • • • • • • To No.
  • Page 141 Appendix 1 Troubleshooting Maintenance console error No. 4-1. “Communication error: Module response timeout” “Failed to read module settings. COM port became unusable during communication. Check the cable connection and power supply status.” “Module connection failed. COM port setting is incorrect, or is not specified. Set COM port from the "Preferences" menu and re-run.” Corrective action 4-1: Cause: COM port detection failure Disconnect the Mini USB cable, and connect it again. 4-1: Cause: COM port configuration error The specified COM port may not be correct. Using the maintenance console, change the COM port to the same port as the connected PC.
  • Page 142 Appendix 1 Troubleshooting Other Problems Description of problem Corrective action The coordinator does not start properly. Check the PAN-ID of the coordinator. When you start the coordinator, if there are wireless devices using the same PAN-ID and same channel in the radio range, the coordinator cannot complete the startup operation.
  • Page 143 Appendix 2 Frequently Asked Questions Inquiries about Hardware Specifications What are the maximum number of routers that can connect to a single coordinator and the maximum number of hops? The maximum number of routers that connect to a single coordinator is 100. The maximum number of hops is 16.
  • Page 144 Using antennas and extension cables sold in the market violates the certification of conformance to technical standards, so they cannot be used. Disconnecting or altering the antennas and extension cables sold by YOKOGAWA also violates the certification of conformance to technical standards.
  • Page 145 Appendix 3 Different Versions and Connectivity The following table shows the connectivity of wireless devices (coordinators and routers) described in this document. Wireless device (coordinator) v4.x (fast join) v4.x (v3 compatible) Wireless device vf4.x (fast join) (router) vf4.x (v3 compatible) vf4.x: Wireless module firmware version Y: Connection possible N: Connection not possible App-9 IM 04L51B01-41EN...
  • Page 146 Appendix 4 Terminology Term Description 900MHz Compared to the 2.4 GHz band used by wireless LAN and the like, the 900 MHz band features a longer radio range and better characteristics of bending around obstacles. As such, it can be used when longer communication distance is necessary and when there are many obstacles in the area.
  • Page 147 Appendix 5 System Operation Considerations This section explains the steps to install a data acquisition system that uses wireless devices. Write down the settings that you decide to use for each item in the parameter sheet, and refer to them when configuring or installing wireless devices. (1) Confirming the components of the installation environment (2) Choosing the areas to use wireless communication (3) Selecting the required devices and their quantity...
  • Page 148 Appendix 5 System Operation Considerations Determining the Areas to Use Wireless Communication First, choose the areas to use wireless communication in the installation environment. Because a wireless coordinator is always connected to a data acquisition device, check the location where the coordinator will be connected and configure the multidrop connection in order to determine the maximum number of sensors that will be connected through wiring.
  • Page 149 Fig. 5.3. Table 5.1 shows the minimum number of wireless devices that will be necessary. Table 5.1 Number of required wireless devices Wireless device type Product name Quantity Parent GX20/CM2, GP20/CM2 Router UT32A (with 920 MHz wireless communication) GM10/CS2 Wireless device coordinator Wireless device router Fig 5.3 Wireless configuration...
  • Page 150 Appendix 5 System Operation Considerations Reviewing the Wireless Device Parameter Values To configure the multi-hop network using wireless devices, we choose the wireless device parameter values shown in Table 5.2. Note that the values shown in section 5.4.1 and later are examples. Table 5.2 Wireless device configuration parameters Parameter Parent Router Reference...
  • Page 151 Appendix 5 System Operation Considerations 5.4.1 Network Join Mode You can set the network join mode on wireless devices. There are two types of network join modes: Fast join mode and V3-compatible mode. The above two modes can be specified for wireless devices with firmware version vf4.x. Fast join mode allows devices to join a network quickly. The minimum network join time of a wireless device is about 5 seconds. V3-compatible mode allows connection to a network consisting of wireless devices with firmware version v3.x. The minimum network join time of a wireless device is about 30 seconds. Set the same network join mode for all wireless devices in the same network. Table 5.3 Network join mode Target Configuration Parameter specification...
  • Page 152 Appendix 5 System Operation Considerations 5.4.2 PAN ID (group number) Wireless devices configure a wireless multi-hop network (wireless PAN) under the coordinator. The wireless coordinator configures a PAN using its assigned channel number (frequency band). A PAN ID is assigned as an identifier to this PAN. Make sure that this PAN ID is a unique ID for each coordinator.
  • Page 153 Appendix 5 System Operation Considerations [Coordinator settings] Network join mode Fast join mode PAN ID: A002 [Router settings] Network join mode Fast join mode PAN ID: A002 Fig. 5.6 PAN setting for the configuration example 5.4.3 Radio channel number For the wireless coordinator, select the channel number to use to configure a wireless network (PAN) from the channels (1 to 43) given in table 5.5.
  • Page 154 Appendix 5 System Operation Considerations On wireless routers, specify channel numbers of coordinators that routers will try to connect to. You can specify up to 10 channel numbers in a router, but when multiple channel numbers are specified, channel scanning will take longer during the network search, which means it will take longer for the router to join the network.
  • Page 155 Appendix 5 System Operation Considerations P1 (PAN) P2 (PAN) P3 (PAN) Coordinator 1 Coordinator 2 Coordinator 3 ch3, PAN ID=P2 ch1, PAN ID=P1 ch5, PAN ID=P3 Network name = N1 Network name = N1 Network name = N2 A router selects and connects to Connection errors can be prevented a coordinator with a good RSSI because a router cannot connect to...
  • Page 156 Appendix 5 System Operation Considerations 5.4.5 Monitoring Unit Time of Radio Transmission If used outside Japan, there is no limit to the transmission time. The wireless device complies with ARIB STD-T108, a standard defined by Association of Radio Industries and Businesses (ARIB). Wireless communication that use the 920 MHz frequency band must observe the transmission time limit (10% duty limit) defined by ARIB STD-T108.
  • Page 157 Appendix 5 System Operation Considerations Table 5.8 Radio transmission monitoring unit time Target Configuration Parameter specification Notes and range Parent Mandatory 10 to 3600 (seconds) Device’s default value: 1,800 (seconds) Maintenance console’s default value: 600 (seconds) (recommended) Router Mandatory 10 to 3600 (seconds) Device’s default value: 1,800 (seconds) Maintenance console’s default value: 600 (seconds) (recommended) In this configuration example, we will set the radio transmission monitoring unit time to 600...
  • Page 158 Table 5.9 shows the reference command response time for reading the data of a single command by a router from the coordinator. Table 5.9 Reference command response time For GX20/GM10 Number of readout channels Reference command response time (ms) For UT52A/UT32A...
  • Page 159 Appendix 5 System Operation Considerations Example 3 If data is acquired from router 1 and the number of channels is 200, because a command for 125 channels and another for 75 channels are sent to a single router, the data acquisition interval is given by Data acquisition interval = 335+290 = 625 (ms) Therefore, data acquisition is possible at a read cycle of 1 s or more.
  • Page 160 Appendix 5 System Operation Considerations 5.4.7 Retry Times before Route Switching The wireless device allows you to select whether to change the route to another one when communication fails several times using the same route when a coordinator tries to communicate with repeaters and routers through a given communication route (hereafter referred to as the downward route). This retry count is called “retry times before route switching.”...
  • Page 161 Appendix 5 System Operation Considerations (1) Network join authentication using encryption keys Similar to Wi-Fi and other wireless networks, wireless multi-hop networks use the AES encryption algorithm to perform encrypted wireless communication. When joining a network, a wireless device must receive from the coordinator a genuine network encryption key needed to perform encryption and decryption. To receive this key, you need to register a encryption key in the wireless device in advance.
  • Page 162 Appendix 5 System Operation Considerations Table 5.13 MAC address authentication Target Configuration Parameter specification and range Notes Parent Mandatory On/Off In this configuration example, only the network join authentication using encryption keys will be used. A common encryption key will be set in the coordinator and routers. [Coordinator settings] Network join mode Router 5 Fast join mode PAN ID: A002 Channel number: 3 Network name: MH920@NW-iD...
  • Page 163 Appendix 5 System Operation Considerations 5.4.9 IPv6 Prefix When a wireless device passes the network join authentication and is officially permitted to join the multi-hop network, the device obtains an IPv6 address before joining the network. Fixed prefix information (the upper 64 bits) that is used to generate this IPv6 address is set in the wireless coordinator. IPv6 addresses that are used by wireless devices are automatically assigned using this fixed prefix information set in the coordinator and the short addresses assigned to each coordinator and router.
  • Page 164 Appendix 5 System Operation Considerations If wireless devices are used in a transparent model, prefix information can be set to any value because IPv6 communication takes place in a closed wireless network. However, we recommend that different prefix information be set for each coordinator in terms of network management.
  • Page 165 Appendix 5 System Operation Considerations 5.4.10 Station Numbers and Short Addresses There are three modes to collect information from sensors connected to wireless devices. Two of the modes involve mapping the short addresses assigned to wireless routers with to station numbers assigned to sensors on the wireless coordinator. The third mode collects information without using station number analysis.
  • Page 166 Select the specification method Select the specification method of Station numbers of Station numbers Choose the planned number of additions Choose the number of sensor connections ……… (2) b. Choose the number of sensor connections Appendix 5 System Operation Considerations Choose the station numbers to assign ………...
  • Page 167 Appendix 5 System Operation Considerations Router 5 [Value] Sensor A-1 station number: 1 Sensor B-1 station number: 2 Sensor C-1 station number: 3 Sensor A-5 Sensor C-2 station number: 4 Sensor A-2 station number: 5 Router 4 Sensor C-3 station number: 6 Sensor B-2 station number: 7 Sensor A-3 station number: 8 Sensor A-4 Sensor C-4 station number: 9...
  • Page 168 Appendix 5 System Operation Considerations c. Choosing the mapping of station numbers and routers’ short addresses Choose pairs of routers’ short addresses and station numbers of devices connected to the routers to register in the coordinator’s station number list. Router 5 Sensor A-5 Router 4 Sensor A-4 Sensor C-8 Sensor C-6...
  • Page 169 Appendix 5 System Operation Considerations (2) Range mode In range mode, station numbers of sensors and short addresses of routers are chosen from a given range of values based on the maximum number of sensors that are connected to a single wireless router. The values in range mode are chosen according to steps a to c below. a. Check the maximum number of multidrop connections First, the number of sensors to connect to the wireless coordinator is chosen based on the maximum number of sensors that are connected in a multidrop configuration in the same...
  • Page 170 Appendix 5 System Operation Considerations b. Choose the number of sensor connections The range of station numbers that can be assigned to sensors connected to wireless routers are determined from the number of sensors to connect to the wireless coordinator. Tables 5.17 to 5.19 show examples of range of station numbers that can be assigned according to the number of sensor connections.
  • Page 171 Appendix 5 System Operation Considerations Router 5 Wireless device coordinator Wireless device router Sensor A-5 Router 4 Sensor A-4 [Value] Coordinator (short address = 0) Sensor C-8 Sensor C-6 Sensor C-7 Router 1 (short address = 1) Sensor A-1 (station number = 1, sensor B-1 (station number = 2) Router 3 Sensor C-1 (station number = 3, sensor C-2 (station number = 4) Router 2...
  • Page 172 Appendix 5 System Operation Considerations (3) No station number analysis mode If the wireless coordinator is set to no station number analysis, data from the host device will be sent to all routers without analyzing the station numbers. Even in systems that use the RS-485 protocol with a format that does not allow station number analysis, serial communication can easily be converted into wireless communication in a transparent model configuration.
  • Page 173 Appendix 5 System Operation Considerations b. Choose the short addresses of routers Assign short addresses to wireless coordinators and routers. The short addresses to assign to wireless coordinators are fixed to 0000. The short addresses to assign to wireless routers are chosen from 4 digit values ranging from 0001 to FFFD in hexadecimal notation.
  • Page 174 Appendix 5 System Operation Considerations c. Choose repeaters For Routers used as repeaters (routers without sensors, e.g., coordinator 4 in Fig. 5.30), disabling the Equipment Connection setting causes the coordinator to no longer send commands to those routers. This reduces network traffic and response time. [Value] Router 5 Sensor A-1 station number: 11...
  • Page 175 Appendix 5 System Operation Considerations 5.4.11 Reviewing Packet Filtering Setup Packet filtering is used to discard duplicate data packets that are received by the host device, such as those received as a result of retransmission from sensors. There are two types of packet filtering depending on the method used by the host device to acquire data, namely polling and notification.
  • Page 176 Appendix 5 System Operation Considerations 5.4.12 Reviewing Fixed Route Setup As explained in section 5.4.2, “PAN ID (group number),” a wireless device tries to connect to the device with the best RSSI value among the received radio signals if the PAN-ID is the same when joining the network. The fixed route function can be used to connect wireless devices to specific connection destinations, regardless of the RSSI values. If temporary detour is enabled along with this function, data is transmitted through a detour route if the radio signal conditions with the fixed connection destination is poor.
  • Page 177 Appendix 5 System Operation Considerations 5.4.13 Network Scale Setup and Network Quality Setup Optimize the control signal transmission frequency for maintaining the wireless network according to the number of wireless devices connected to the same network. Be sure to set the same network scale for wireless devices with the same PAN ID (group number).
  • Page 178 Appendix 5 System Operation Considerations 5.4.14 Password for Connecting to the Wireless Device You can change the login password for connecting to wireless devices from the maintenance console. It is assumed that using the default password is not desirable in terms of security. Therefore, we recommend you change the wireless device password using this function. Table 5.24 shows the password specifications.

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