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| Specification parameters | Model no |
SM 1231 AI4 x 16 Bits |
| Article No | H7 231-5ND32-0XB0 | |
| Description | Analog input module AI4 x 16 bits |
| Conventional norm |
Dimensions WxHxD（mm） |
45x100x75mm |
| Power Consumption | 2W | |
| Current Consumption(SM bus) | 80mA | |
| Current Consumption(24V DC) | 65mA |
| Analog input | Number of Inputs | 4 |
| Input type | Voltage or current (differential) | |
| Input range | ±10 V、±5 V、±2.5 V、±1.25 V、0 － 20 mA or 4 mA － 20 mA | |
| Full scale range(Data word） | -27648-27648 | |
| Overshoot/undershoot range(Data word） |
Voltage: 32,511－27,649/-27,649 － -32,512 |
|
| Overflow/Underflow (Data Word） |
Voltage: 32,767－32,512/-32,513 － -32,768 |
|
| Data format | 15 bits + signal bits | |
| Max. Voltage/Current Resistance | ±60V/±40mA | |
| Smoothness | None, weak, medium or strong | |
| Noise suppression | 400、60、50 or 10Hz | |
| Isolation(field side and logic side) | None | |
| Precision(25℃/0-55℃） | full range ±0.1%/±0.3% | |
| Working Signal Range | signal plus common mode voltage must be <+12V and >-12V | |
| Diagnosis:Overflow/underflow | Support | |
| Circuit Break（Current Mode Only） | 4-20 mA range only (if input is below -4,164; 1.0 mA) |
