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GW-7838-M (Modbus TCP Server to M-Bus Master Gateway) User Manual 

Version 1.01 

Page

：

5

 

 

Copyright © 2021 ICP DAS Co., Ltd. All Rights Reserved    E-mail: [email protected] 

1.1  Features 

  Supports M-Bus standard: EN-13757, CJ/T -188 

  Supports Modbus TCP/RTU function code 0x03 and 0x04 to read Meter data 

  Baud rate: Adjustable by dip  switch  for M-Bus and serial port from 300 to 

115200 bps. 

  Default M-Bus port data format: Data bit 8, Parity Even, Stop bit 1 

  Supports up to 100 M-Bus slaves 

  M-Bus over current protection 

  Short-circuit protection on the M-Bus 

  Update firmware from serial port 

  Provides PWR, MTX and MRX 3 LED indicators 

  Watchdog inside 

 

 

 

Содержание GW-7838-M

Страница 1: ...User Manual Version 1 0 1 Oct 2021 GW 7838 M Modbus TCP Server to M Bus Master Gateway...

Страница 2: ...Configuration and Communicate test 10 3 1 Connect 11 3 2 Baud Rate and Data Format Settings 12 3 3 M Bus Meter Settings 13 3 3 1 Import 14 3 3 2 Export 16 3 3 3 Add 17 3 3 4 Save 19 3 3 5 Delete 21 3...

Страница 3: ...t ICP DAS reserves the right to change this manual at any time without notice The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility is assumed by ICP D...

Страница 4: ...f consumption meters as well as for various sensors and actuators The GW 7838 M is specially designed for M Bus slave device It offers Modbus TCP communication by Ethernet and Modbus RTU communication...

Страница 5: ...8 Supports Modbus TCP RTU function code 0x03 and 0x04 to read Meter data Baud rate Adjustable by dip switch for M Bus and serial port from 300 to 115200 bps Default M Bus port data format Data bit 8 P...

Страница 6: ...ent Protection short circuit protection UART Interface Channel 1 RS 232 Baud Rate bps 300 bps 115200 bps ESD Protection Contact 4 kv class B Ethernet Interface Channel 1 Protocol Modbus TCP Power Powe...

Страница 7: ...838 M Modbus TCP Server to M Bus Master Gateway User Manual Version 1 01 Page 7 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 2 Getting Started Appearance and pin assignm...

Страница 8: ...g 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 Status LED Description Power Yel...

Страница 9: ...FF Normal Work ON OFF Firmware Update OFF ON Configuration mode ON ON Reserve The DIP switch 3 6 are used to set RS 232 and M Bus baud rate The following is an overview of the purpose and function of...

Страница 10: ...arameters or communication setting on the GW 7838 M module can be performed via M Bus utility The M Bus utility can be downloaded from the following website https www icpdas com en download index php...

Страница 11: ...s com 3 1 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 or select Ethernet and input GW 7838 M IP Addre...

Страница 12: ...ts baud rate and data format configuration of the serial port and the M Bus port and it also shows the Modbus node ID and IP related parameters of the GW 7838 M User could add a new baud rate and data...

Страница 13: ...Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 3 3 M Bus Meter Settings In the Meter page of the utility user could configure the M Bus communication setting by using Imp...

Страница 14: ...pdas com 3 3 1 Import There are two ways to add M Bus Meter setting into GW 7838 M One is using Import to import an existed configuration file and save to GW 7838 M The configure steps are as followin...

Страница 15: ...ual Version 1 01 Page 15 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com Step4 Press Save button and confirm to save configuration Step5 After saving success diagram showed...

Страница 16: ...Page 16 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 3 3 2 Export User could export the existed module configuration to a XML file by the Export function Step1 Press Ex...

Страница 17: ...lect the protocol of the meter There are two protocols EN 13757 and CJ T188 for select Input the meter serial number and M Bus network polling cycle time Then press OK to connect to the meter Some met...

Страница 18: ...User Manual Version 1 01 Page 18 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com Step2 The meter information shows as below Step3 After add all meters on the utility list p...

Страница 19: ...1 Page 19 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 3 3 4 Save After adding meters setting or importing configuration use Save function to save configuration into the...

Страница 20: ...M Bus Master Gateway User Manual Version 1 01 Page 20 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com Step3 After saving success diagram showed set the DIP switch to operat...

Страница 21: ...y User Manual Version 1 01 Page 21 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 3 3 5 Delete The Delete function will delete one meter setting each time Take the followi...

Страница 22: ...All Rights Reserved E mail service icpdas com Step2 Select the serial number of meter which wanting to be deleted Step3 Confirm to delete meter which is selected Step4 it will show the meter informati...

Страница 23: ...t 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 3 3 6 Delete All The Delete All function can delete all meters setting on the utility list Step1 Press Delete All button Step2 Confi...

Страница 24: ...After the meter is configured the user can re execute the M Bus utility and then click Gateway Reader to read the meter data and check if the settings are correct After executing the Gateway Reader se...

Страница 25: ...Ltd All Rights Reserved E mail service icpdas com 4 Meter Configuration Label Description After adding meters configuration the meters information will be showed as below There are some labels to reco...

Страница 26: ...l The Serial column records serial number of meters Each meter that complies with the EN 13757 specification will have a set of 8 digit serial numbers while meters that comply with the CJ T 188 specif...

Страница 27: ...Version 1 01 Page 27 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 2 Protocol The Protocol field is used to indicate which specification of the meter following GW 7838...

Страница 28: ...read the table data Note that the new meter can read the data preset by the meter manufacturer without filling in the subcode during the Add process Once the subcode is filled in the data read will no...

Страница 29: ...nual Version 1 01 Page 29 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 4 Medium The Medium field records medium of meters It will show the medium of meters according t...

Страница 30: ...sion 1 01 Page 30 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 5 Value The Value field records value type of meters data It will show the value type of meters data acc...

Страница 31: ...ual Version 1 01 Page 31 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 6 Unit The Unit field records unit of meters data It will show the unit of meters data according...

Страница 32: ...1 01 Page 32 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 7 Cycle The Cycle field records the minimum cycle time unit is sec for polling all meters data Please be not...

Страница 33: ...1 01 Page 33 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 4 8 Description The Description field records meaning of meters data It will show the real meaning of meters da...

Страница 34: ...tocol with serial number 10153802 Serial It has total 4 words data length Register and 1st data is 8 digit BCD type Value from Modbus address 0x0000 0x0001 Register and 2nd data is also 8 digit BCD ty...

Страница 35: ...https www icpdas com en download index php model GW 7838 M Following shows the firmware update process for GW 7838 M using firmware update utility Step 1 Switch DIP switches to the firmware update mod...

Страница 36: ...ge 36 Copyright 2021 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com Appendix B Revision History This chapter provides revision history information to this document The table below shows...

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