GWFcoder® -Interface
M-Bus / M-Bus / M-Bus
Product categories
Water,
Heat / Cooling,
Gas
Remote meter reading
Water
Drinking Water
Heat / Cooling
Gas
System technology
Smart City
Your benefits
- Interface splitter:
Multiple utilisation of meter data - Supply voltage via M-Bus:
No additional mains adapter required - Clearly marked connection terminals:
Easy on-site installation
Applications
- With this interface two different management systems in a building can read out an M-Bus meter for energy optimisation simultaneously and independently
- Using the interface, previously installed M-Bus meters (GWFcoder® from version 5.0 and higher) can be connected to an additional management system of the building services engineering or the tenant
Properties
- Meter reading via the primary or secondary address 1)
- Various possible parameter settings for baud rates
- One M-Bus/M-Bus – M-Bus interface is required for each GWFcoder®meter
- DIN rail or wall mounted
- With this interface one M-Bus meter can be integrated into two independent M-Bus networks simultaneously and read out separately. The interface automatically reads out the connected M-Bus meter at specified intervals and saves the current data set in the internal memory. If a readout occurs, the data is immediately available and transferred to the building management systems.
Product information
Components
Technical Data
| Data transfer M-Bus | |
|---|---|
| Baud rate M-Bus OUT 1 | 2400 baud (default) or 300 baud |
| Baud rate M-Bus OUT 2 | 2400 baud (default) or 300 baud |
| Primary address M-Bus | 1–250 |
| Secondary address1) | Meter number (eight digits) |
| M-Bus unit load | |
|---|---|
| M-Bus OUT 1 | 1 M-Bus unit load (1,5 mA - supply) |
| M-Bus OUT 2 | 4 M-Bus unit loads (6 mA - supply) |
| Connectable meters | |
|---|---|
| 1 meter with max. 2 M-Bus unit loads (3 mA) | |
| Installation | |
|---|---|
| The interface can be installed at the M-Bus master or the meter. | |
| Max. cable length | |
|---|---|
| M-Bus connection cable | Network-dependent |
| Dimensions and weight | |
|---|---|
| Dimensions | 75x55x110 mm |
| Weight | app. 100 g |
| Application area | |
|---|---|
| Temperature | 0 to +50 °C |
| Protection class | IP40 |
| Interfaces | |
|---|---|
| M-Bus according to EN 13757 (supports REQ_UD2, SND_NKE) | |
| Type of mounting | |
|---|---|
| DIN rail or wall mounted | |
| Connection and signal transfer/Interface | |
|---|---|
| M-Bus OUT 1 | M-Bus master according to EN 13757 building management system After «Power On», the interface requires app. 2 minutes before it is ready for operation. |
| M-Bus OUT 2 | M-Bus master according to EN 13757 building management system After «Power On», the interface requires app. 2 minutes before it is ready for operation. |
| M-Bus IN | M-Bus meter Meter reading possible via the primary or secondary address1) |
1) Firmware version 2B and higher
