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Bộ chuyển đổi Modbus RTU Slave sang M-Bus Master Gateway ICP DAS GW-7828 CR

Modbus RTU Slave to M-Bus Master Gateway

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Model: GW-7828 CR
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Bộ chuyển đổi Modbus RTU Slave sang M-Bus Master Gateway ICP DAS GW-7828 CR

The M-Bus (“Meter-Bus”) is a standard for remote reading of meters. It is usable for most types of consumption meters as well as for various sensors and actuators. The GW-7828 is specially designed for M-Bus slave device. It offers Modbus RTU communication by three kinds of interface, RS-232, RS-422 and RS-485. On hardware the GW-7828 has two rotary switches for serial port and M-Bus port baud rate. GW-7828 supports Modbus RTU function code 0x03 and 0x04 to read data of M-Bus meters. Through this design, it is easy to communicate with any standard M-Bus slave.

GW-7828 AP

The M-Bus (Meter‐Bus) is a bus optimized for the reading of measurement instruments like: energy counters, hot and cold water counters, gas, pressure, sensors and actuators, etc.….

GW-7828 AP

COM Ports
Ports 1 x RS-232
1 x RS-422    (can’t be used simultaneously)
1 x RS-485
Baud Rate 300 bps ~ 115200 bps
Parity None, Even, Odd, Space, Mark
Data Bit 5, 6, 7, 8
Stop Bit 1, 2
M-Bus
Baud Rate 300 bps ~ 2400 bps
Data Bit 5, 6, 7, 8
Stop Bit 1, 2
Parity None, Even, Odd, Space, Mark
Isolation 3750 Vrms for photo-couple
Current Protection short-circuit protection
Power
Consumption 1.8 W @ 24 VDC (with 1 slave device)
11.8 W @ 24 VDC (with 100 slave devices)
Mechanical
Dimensions (mm) 72 x 122 x 33 (W x L x D)
Installation DIN-Rail
Environmental
Operating Temperature -25 ~ +60°C
Storage Temperature -40 ~ +80°C
Humidity 10 ~ 90% RH, Non-condensing
  • Provide M-Bus and serial bus user-defined baud rate
  • Check firmware version
  • Configure meters list of M-Bus gateway
  • Test reading meters data
  • Update firmware
Baud Rate Selection by Rotary Switch
Switch Value 0 1 2 3 4 5
Baud [bps] 300 600 1200 2400 4800 9600
Switch Value 6 7 8 9 A ~ F
Baud [bps] 19200 38400 57600 115200 User-defined
The data format of serial bus baud rate of switch value 0 ~ 9 is 8, n, 1.
The data format of M-Bus bus baud rate of switch value 0 ~ 9 is 8, e, 1.
Execution Mode by DIP Switch
DIP 1 (Init) DIP 2 (Mode) Description
OFF OFF Run Firmware
OFF ON Configure
ON OFF Update Firmware

Support Meter

The following meters have been tested with the GW-7828 communication:
Manufacture Picture Model Type Meter Type
Danfoss SONOMETER 500 Heat Meter
SENSUS 405S Water Meter
WESER PUL Heat Meter
DIEHL ALTAIR V4 Water Meter
Wason LXZD-Y3 Water Meter
GW-7828 CR
Modbus RTU Slave to M-Bus Master Gateway (RoHS)
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