DAS GW-7828 Modbus RTU Slave to M-Bus Master Gateway

The DAS GW-7828 Modbus RTU Slave to M-Bus Master Gateway from ICP Australia is suitable for remote reading of most types of consumption meters and various sensors and actuators. The GW-7828 is designed for the M-Bus slave device and offers Modbus RTU communication via RS-232, RS-422 and RS-485.

The device features two rotary switches for serial port and M-Bus port baud rate and supports Modbus RTU function code 0x03 and 0x04 to read data of M-Bus meters.

M-Bus is a communication interface widely used for remote reading of meters including electricity, water and heat meters. It is simple to install as its two-wire system already includes power and comms functions. M-Bus has its own physical layer and protocol usually requiring switching to other systems, such as Modbus, to facilitate overall application.

Key features include: supports M-Bus Standard: EN-13757, CJ/T -188, supports Modbus RTU Function Code 0x03 and 0x04 to Read Meter data, adjustable baud rate (300 to 115,200 bps), supports up to 100 M-Bus slaves, short circuit protection, over-current protection, serial port firmware update.