Description
Digital Input Module SM 1221 DI 16×24 V DC – Detailed Specifications
Model:
- Standard Model No: SM 1221 DI 16×24 V DC
- Article No: H7 221-1BH32-0XB0
- Description: Digital Input Module with 16 Inputs, each supporting 24V DC (Sinking/Sourcing type)
Dimensions:
- Width (W): 45 mm
- Height (H): 100 mm
- Depth (D): 75 mm
Power Consumption:
- 2.5W
Available Current:
- SM Bus Current: 130 mA
- Sensor Power (24V): 4 mA for each active input point
Digital Input Characteristics:
- Input Points: 16
- Input Type: Sinking/Sourcing
- Rated Voltage: 24V DC, 4 mA per input point
- Maximum Continuous Allowable Voltage: 30V DC
- Surge Voltage (Maximum): 35V DC (lasting for 0.5 seconds)
Signal Requirements:
- Logic 1 Signal (Minimum): 2.5 mA at 15V DC
- Logic 0 Signal (Maximum): 1 mA at 5V DC
Isolation:
- Photoelectric Isolation (Field Side and Logic Side): 500V AC (lasting for 1 minute)
- Isolation Group: 4
Filtering Time:
- Options for filtering times: 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms, and 12.8 ms (filtering for each group of 4 inputs)
