ICP DAS USA GW-7828 User Manual

ICP DAS USA GW-7828 User Manual

Modbus rtu slave to m-bus master gateway
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User Manual
Version 1.0.0 Jan 2020
GW-7828
(Modbus RTU Slave to M-Bus Master Gateway)

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Summary of Contents for ICP DAS USA GW-7828

  • Page 1 User Manual Version 1.0.0 Jan 2020 GW-7828 (Modbus RTU Slave to M-Bus Master Gateway)
  • Page 2: Table Of Contents

    4.6 Unit ..........................33 4.7 Cycle ..........................34 4.8 Description ........................35 4.9 Register ......................... 36 GW-7828 (Modbus RTU Slave to M-Bus Master Gateway) User Manual Version 1.0.0 Page:2 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved E-mail: service@icpdas.com...
  • Page 3 Appendix A. Firmware Update ....................37 Appendix B. Revision History ....................38 GW-7828 (Modbus RTU Slave to M-Bus Master Gateway) User Manual Version 1.0.0 Page:3 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved E-mail: service@icpdas.com...
  • Page 4 Contact us If you encounter any problems while operating this device, feel free to contact us via mail at: service@icpdas.com . We will reply as soon as possible. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:4 Copyright ©...
  • Page 5: Introduction

    The M-Bus ("Meter-Bus") is a standard for remote reading of meters. It is usable for most types of consumption meters as well as for various sensors and actuators. The GW-7828 is specially designed for M-Bus slave device. It offers Modbus RTU communication by three kinds of interface, RS-232, RS-422 and RS-485.
  • Page 6: Features

     Update firmware from serial port  Provides PWR, MTX and MRX 3 LED indicators  Watchdog inside GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:6 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 7: Specification

    -25 to +60°C Storage Temperature -40 to +80°C Relative Humidity 10 to 90% RH, Non-condensing GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:7 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved E-mail: service@icpdas.com...
  • Page 8: Getting Started

    2. Getting Started  Appearance and pin assignments GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:8 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved E-mail: service@icpdas.com...
  • Page 9: Led Indicator

    2.1 LED Indicator The GW-7828 module provides three LED indicators, including indicators for power status and module status. The Following is an overview of the purpose and function of each LED indicator together with a description. LED Name LED Description...
  • Page 10: Rotary Switch

    2.2 Rotary Switch The GW-7828 module provides two rotary switches that are used to change UART Baud Rate and M-Bus Baud Rate. The following is an overview of the purpose and function of each rotary switch position together with a description.
  • Page 11: Dip Switch

    The DIP switch is used to update firmware and configure M-Bus Meter setting. The functions of each mode will be explained in detail in later chapters. After changing the configuration of the DIP switch, the GW-7828 needs to reboot to enable the new setting. Init Pin...
  • Page 12: Configuration And Communicate Test

    The figure below is an illustration of module wiring. Connect the PC COM port to the RS-232 port and connect M-Bus meter to M-Bus port of the GW-7828. Set the DIP switch to the configuration mode and then power it on.
  • Page 13: Connect

    Execute the M-Bus utility. There will be a connection diagram as first. Click “Configure” tab page, choose the corresponding COM port in PC then click “Connect” button to connect with module. Please be noted that the UART baud rate of GW-7828 will be 115200bps when it is in configuration Mode.
  • Page 14: Baud Rate And Data Format Settings

    The first page of the utility lists baud rate and data format configuration of the serial port and the M-Bus port and it also shows the Modbus RTU node ID of the GW-7828. User could add a new baud rate and data format setting as need in this page.
  • Page 15: M-Bus Meter Settings

    In the “Meter” page of the utility, user could configure the M-Bus communication setting by using “Import” or “Add” functions. The usages of these functions are listed as following sections. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:15...
  • Page 16: Import

    3.3.1 Import There are two ways to add M-Bus Meter setting into GW-7828. One is using “Import” to import an existed configuration file and save to GW-7828. The configure steps are as following: Step1: Press “Import” button. Step2: Open an existed configuration file of XML format.
  • Page 17 Step4: Press “Save” button and confirm to save configuration. Step5: After saving success diagram showed, set the DIP switch to operation mode and reboot the module. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:17 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 18: Export

    User could export the existed module configuration to a XML file by the “Export” function. Step1: Press “Export” button. Then select path and input file name to export the configuration. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:18...
  • Page 19: Add

    3.3.3 Add The second way to add meter configuration to GW-7828 is using “Add” function. The “Add” function can add meter of EN-13757 protocol or CJ/T-188 protocol into GW-7828. Refer below operation example for detail setting step. Step1: Press “Add” button and select the protocol of the meter. There are two protocols, EN-13757 and CJ/T188 for select.
  • Page 20 Step2: The meter information shows as below. Step3: After add all meters on the utility list, press “Save” to save these parameters to the GW-7828. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:20 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 21: Save

    After adding meters setting or importing configuration, use “Save” function to save configuration into the GW-7828. Step1: Press “Save” button. Step2: Confirm to save the configuration. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:21 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 22 Step3: After saving success diagram showed, set the DIP switch to operation mode and reboot the module. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:22 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 23: Delete

    The “Delete” function will delete one meter setting each time. Take the following setting as an example. Step1: Press “Delete” button. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:23 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 24 Step3: Confirm to delete meter which is selected. Step4: it will show the meter information after deleting as below. Step5: After delete meter configuration completely, press “Save” to save change to GW-7828. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00...
  • Page 25: Delete All

    Step1: Press “Delete All” button. Step2: Confirm to delete all meters’ configuration. Step3: Finally press “Save” to save changing configuration. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:25 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 26: M-Bus Meter Communicate Test

    After executing the “Gateway Reader”, select the COM port and timeout related options, and press the “Start Reader” button to import the configuration file exported in Section 3.3.2. It can test whether the value read matches the setting. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:26 Copyright ©...
  • Page 27: Meter Configuration Label Description

    After adding meters’ configuration, the meters’ information will be showed as below. There are some labels to record the meters’ information for user’s reference. User can find the meaning of the labels in the following section. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:27 Copyright ©...
  • Page 28: Serial

    “Serial” field. EN-13757 CJ/T-188 GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:28 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 29: Protocol

    4.2 Protocol The “Protocol” field is used to indicate which specification of the meter following. GW-7828 supports two protocols EN-13757 and CJ/T-188. EN-13757 CJ/T-188 GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:29 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 30: Address

    4.3 Address The “Address” field is expected to record address of the meter, which is reserved now. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:30 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 31: Medium

    4.4 Medium The “Medium” field records medium of meters. It will show the medium of meters according to the definition in EN-13757 protocol or CJ/T-188 protocol. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:31 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved...
  • Page 32: Value

    The “Value” field records value type of meters’ data. It will show the value type of meters’ data according to the definition in EN-13757 protocol or CJ/T-188 protocol. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:32...
  • Page 33: Unit

    4.6 Unit The “Unit” field records unit of meters’ data. It will show the unit of meters’ data according to the definition in EN-13757 protocol or CJ/T-188 protocol. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:33 Copyright ©...
  • Page 34: Cycle

    The “Cycle” field records the minimum cycle time (unit is sec.) for polling all meters’ data. Please be noted that the cycle time parameter is for all meters of the M-Bus network. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:34...
  • Page 35: Description

    The “ Description” field records meaning of meters’ data. It will show the real meaning of meters’ data according to the definition in EN-13757 protocol or CJ/T-188 protocol. GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:35...
  • Page 36: Register

    The “Register” field records the total word count and the Modbus address of every data at GW-7828. Take the below as an example, this is a water meter (Medium) of EN-13757 protocol (Protocol) with serial number 10153802 (Serial). It has total 4 words data length (Register) and data is 8 digit BCD type (Value) from Modbus address 0x0000 ~ 0x0001 (Register) and 2 data is also 8 digit BCD type (Value) from Modbus address 0x0002 ~ 0x0003 (Register).
  • Page 37 Appendix A. Firmware Update The firmware on the GW-7828 module can be updated via COM Port. The latest firmware file (*.fw file) and the latest version of the firmware update utility (FW_Update_Tool.zip) are available from the web link below. A notification will not be sent when a new version is released.
  • Page 38 The table below shows the revision history. Revision Date Description 1.0.0 January 2020 First Release GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual Version 1.00 Page:38 Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved E-mail: service@icpdas.com...

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