Siemens
SM 321 Digital Input 16x24V DC
6ES7 321-1BH50-0AA0
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S7-300 digital input module with 16 channels, 24V DC. Latest version before discontinuation....
| Inputs | 16 x 24V DC |
|---|---|
| Isolation | Groups of 16 |
| Input Delay | 1.2-4.8ms |
