Bộ chuyển đổi Modbus RTU Slave sang M-Bus Master ICP DAS GW-7828 CR
Features
- Supports M-Bus standard: EN-13757, CJ/T -188
- Supports Modbus RTU function code 0x03 and 0x04 to read Meter data
- Supports up to 100 M-Bus slaves
- M-Bus over current protection
- Short-circuit protection on the M-Bus
- Update firmware from serial port
Introduction
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.
Applications
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.….
Specifications
| 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 |
| Environment |
| Operating Temperature |
-25 ~ +60°C |
| Storage Temperature |
-40 ~ +80°C |
| Humidity |
10 ~ 90% RH, Non-condensing |
Download
Datasheet
Documents
Ordering Information
| GW-7828 CR |
Modbus RTU Slave to M-Bus Master Gateway (RoHS) |
