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Siemens SIMATIC S7-300 Digital Input Module 6ES7321-1BL00-0AA0
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6ES7321-1BL00-0AA0 is a Digital Input Module (SM 321) featuring 32 isolated digital inputs operating at 24 V DC. It connects industrial sensors, switches, and binary signal transmitters to an S7-300 programmable logic controller.
Core Features & Specifications
- Channels: 32 digital inputs
- Input Voltage: 24 V DC
- Isolation: Optically isolated (galvanically isolated in groups)
- Connection Type: 1 x 40-pole front connector
- Input Delay: Typically 1.2 ms to 4.8 ms
- Diagnostics/Indicators: Green LED status indicators for each channel
- Sensor Compatibility: Supports 2-wire and 3-wire/4-wire proximity switches and pushbuttons.
Physical and Operating Parameters
- Module Width: 40 mm
- Dimensions: 125 mm x 40 mm x 120 mm
- Weight: Approx. 260g – 300g
- Max Cable Length: Up to 600 meters (unshielded) or 1000 meters (shielded)
Siemens SIMATIC S7-300 Digital Input Module 6ES7321-1BL00-0AA0
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