M-Bus interface converter, MPW-25/MPW-25D
With the M-Bus level converter Bialon MPW-25 and the MPW-25D, up to 25 M-Bus devices (each with a standard load of 1.5 mA) can be connected to an M-bus master via an RS232 or RS485 connection. The M-bus master can be a PC or an "embedded controller" with an RS232 or RS485 interface. The MPW-25 has an RS232 interface, the MPW-25D has an RS232 and RS485 interface.
Product variants
| Article Number | Product Name | |
|---|---|---|
| 095060 + | BIALON MPW-25 230VAC - RS232 | + Request quote |
| M-Bus level converter for 25 M-Bus devices, RS232 interface, power supply 230VAC | ||
| 095061 + | BIALON MPW-25 24VAC/DC - RS232 | + Request quote |
| M-Bus level converter for 25 M-Bus devices, RS232 interface, power supply 24VAC/DC | ||
| 095400 + | BIALON MPW-25D 230VAC - RS232/RS485 | + Request quote |
| Dualport M-Bus level converter for 25 M-Bus devices, RS485 and RS232 interface, power supply 230VAC | ||
| 095401 + | BIALON MPW-25D 24VAC/DC - RS232/RS485 | + Request quote |
| Dualport M-Bus level converter for 25 M-Bus devices, RS485 and RS232 interface, power supply 24VAC/DC | ||
Description
The M-Bus level converter BIALON MPW-25 and MPW-25D lets you connect up to 25 M-Bus endpoints (with a standard load of 1.5 mA each) to an M-Bus Master via an RS232 or RS485 connection. The M-Bus Master can be, e.g., a PC or an embedded controller. The level converter translates the signals from the M-Bus Master on the RS232 or RS485 interface to M-Bus signals. The M-Bus Master is connected to the level converter via terminals 5 to 7, (TD, RD and GND). The level converter has overload protection and is thus short-circuit protected. The trip threshold is 58 mA. Additionally, the M-Bus interface has overvoltage protection on the bus side. The LEDs indicate the major operational and malfunction states, such as power supply, send or receive data, and bus overload. The M-Bus BIALON MPW-25 and MPW-25D level converter is available in two variants with a 230V AC or 24V AC/DC
power supply. The MPW-25 has an RS232 interface, the MPW-25D has an RS232 and RS485 interface.
Specifications
- Supply voltage:
- 110V to 250VAC or 20V to 28VAC/DC
- M-Bus voltage:
- 36 V to 42 V
- max. M-Bus idle current:
- 37.5 mA (25 standard loads)
- Over cuurent threshold:
- <58 mA
- Electrical isolation:
- between RS232/RS485 and M-Bus
- Transfer rate:
- 300 - 9600 baud
- LED indication:
-
- LED green/yellow: Transmit/ Receive M-Bus
- LED green: power
- LED red: Bus overload
- M-Bus connection:
- Terminal pairs max. 2.5 mm²
- RS232/RS485 connection:
- 3 terminals max. 2.5 mm² TD RD GND (RxD from PC) (TxD from PC) (GND from PC)
- 24 V AC/DC connection:
- 3 terminals max. 2.5 mm²
- Operating temperature:
- 0 to 50°C
- Relative humidity:
- 0 to 90 % (non-condensing)
- Housing:
- In accordance with EN 50022 for installation on DIN-rails, 6TE units
- Degree of protection:
- IP 20
- Dimensions (L x W x H):
- 108 x 90 x 66 mm (6 TE)