- Product Name: SIMATIC S7-1200, Signal Module
- Model Number: SM 1221
Specifications:
Digital Inputs:
- Number of Digital Inputs: 8
- Input Voltage Range: 24 V DC
- Input Delay: Configurable (0.1 ms to 6 ms)
- Input Current: 4 mA per input
- Input Filter: Configurable filter times for smoothing input signals
Environmental Conditions:
- Operating Temperature Range: -20 to 60 C (-4 to 140 F)
- Storage Temperature Range: -40 to 70 C (-40 to 158 F)
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