ICP DAS USA GW-7838-M User manual

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GW-7838-M Quick Start
v1.0, November 2020
What’s in the box?
In addition to this guide, the package includes the following items:
GW-7838-M Plastic Rail CA-0910
Screw Driver
(1C016)
Technical Support
[email protected]
www.icpdas.com
Resources
How to search for drivers, manuals and
spec information on ICP DAS website.
For Mobile Web
For Desktop Web
Model Name
Model Name

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1. Appearance
2. LED Indicator
LED
Name
Description
PWR
Power LED
ON: Power On
，
OFF: Power Off
MTX
M-Bus transmit
Flash: M-Bus transmitting
MRX
M-Bus receive
Flash: M-Bus receiving
7-segment LED
IP Address
Ethernet IP address
3. DIP Switch
1
2
Description
OFF
OFF
Normal Work
ON
OFF
Firmware Update
OFF
ON
Configuration mode
ON
ON
Reserve

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3
4
5
6
M-Bus baud rate (bps)
OFF
OFF
OFF
OFF
300
ON
OFF
OFF
OFF
600
OFF
ON
OFF
OFF
1200
ON ON OFF OFF 2400
OFF OFF ON OFF 4800
ON
OFF
ON
OFF
9600
OFF
ON
ON
OFF
19200
ON
ON
ON
OFF
38400
OFF OFF OFF ON 57600
ON OFF OFF ON 115200
Others
User-defined
4. Configuration
The GW-7838-M utility (MBus Utility) can be downloaded from the website:
http://ftp.icpdas.com/pub/cd/fieldbus_cd/m-bus/converter/I-7590/software/
Step1:
Connect the PC Ethernet to the GW-7838-M. Then set the DIP switch to the
configuration mode (DIP 1 OFF, DIP 2 ON) and then power it on.
Step2:
Execute the M-Bus utility, and select Ethernet item and input IP address under the
“Configure” tab. Then, click the connect button.

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Step3:
Afterwards, the M-Bus utility shows all settings stored in the GW-7838-M if it had
been configured before. You can refer to the “GW-7838-M user’s manual” to configure
the M-Bus meter setting according to the kind of meter. After save all the settings, export
the configuration file.
Configure baud rate and data format. Configure M-Bus meters.
Step4:
After configuration, set the DIP switch to operation mode and reboot the GW-7838-M.
Re-execute M-Bus utility and switch to “Gateway Reader” tab.
Step6:
Select the Ethernet and timeout related parameters and press “Start Reader” button.
To import the configuration file that exported by step 3. Then the utility will read the
meter data according to the set cycle time and display it on the utility.