GW-7838-M (Modbus TCP Server to M-Bus Master Gateway) User Manual
Version 1.01
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2.1 LED Indicator
The GW-7838-M 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
Status
LED Description
Power (Yellow)
ON
The power of the module is ON
Power (Yellow)
Flashing
M-Bus overload (short or too much M-Bus slaves)
Need reboot to recover the status.
MTX (Green)
Flashing
M-Bus communication normal Tx
MRX (Green)
Flashing
M-Bus communication normal Rx
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