Serial transmitters : SIAi-8
Module SIAi-8 allows to measure analog values from 8 current (or voltage) inputs via the RS-485 connection, with speed rate about 10 Hz (every channel). Measurement results can be internally recalculated due to one of available characteristics: linear, square or user definable multipoint (max. 20 points length). It finds application in distributed control and visualization systems.
Parameters
| Power supply | typ. 24V DC (16V DC ÷ 30V DC) |
|---|---|
| Input | SIAi-8P: 8 x current 0-20 mA; 4-20 mA; SIAi-8N: 8 x voltage 0-10 V; 2-10 V; 0-5 V; 1-5 V |
| Current consumption | typ. 20 mA |
| Galvanic separation | all 8 inputs are galvanically isolated from module supply and RS-485 interfac |
| Communication interface | RS-485 / Modbus RTU |
| Protection class | IP 20 (housing and connection clips) |
| Operating temperature | 0°C ÷ +50°C (standard), -20°C ÷ +50°C (option) |
| Storage temperature | -10°C ÷ +70°C or -20°C ÷ +70°C (with option 08) |
| Case dimensions | 101 x 22,5 x 80 mm |
| Data memory | non-volatile memory, EEPROM type |
| Mounting | on the 35 mm strip |
| External fuse | T - type, max. 1 A (required) |
| Humidity | max. 90%, non-condensing |
| Transmission parameters | 1200 ÷ 115200 bit/s. |
| Number of modules in 1 network | max. 128 |