FB …
Fieldbus replacement units for Staefa or Johnson Controls
Application
The FB NRUF AS1000, FB NRD24 and FB DX9121 are Fieldbus adapters which can be used as replacements for Staefa Integral AS1000, Staefa NRD24 and Johnson Controls DX9121. The Fieldbus adapter modules are operated via a standard Modbus®-RTU / S-Bus interface with a central DDC or PLC.
Technical Data
| Power supply voltage: | 24V DC ±20% |
| No-load current: | 30mA |
| Max. current draw: | FB NRUF AS1000: 220mA FB NRD24: 210mA FB DX9121: 160mA |
| Bus protocol: | RS485, Modbus®-RTU / S-Bus |
| Digital / analogue I/Os: | see table |
| Ambient temperature: | 0...+50°C |
| Accuracy: | < 0.1 % |
| Analogue resolution: | 0.1°C |
| EMC: | according to EN 61326 |
| Terminals: | Plug-in terminals up to 1.5 mm² |
| Housing: | Stainless steel 1.4301 |
| Dimensions WxHxD: | FB NRUF AS1000: 265 x 288 x 35 mm FB NRD24: 170 x 162 x 35 mm FB DX9121: 200 x 185 x 45 mm |
| Installation: | FB NRUF AS1000, FB NRD24 on base plate FB DX9121: DIN rail 35mm |
| Humidity: | < 95 % rH, non-condensing air |
| Protection type: | IP00 |
| Standards: | CE conformity |
