GW-7828 (Modbus RTU Slave to MBus Master Gateway) User Manual
Version 1.00
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1.1 Features
Supports M-Bus standard: EN-13757, CJ/T -188
Supports Modbus RTU function code 0x03 and 0x04 to read Meter data
Baud rate: Adjustable by rotary switch serial port from 300 to 115200 bps, and
M-Bus from 300 to 2400 bps. Two baud rates are set individually.
Default serial port data format: Data bit 8, Parity None, Stop bit 1
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