Siemens · PLC Module
6ES7321-7BH01-0AB0
Siemens Digital Input Module 6ES7321-7BH01-0AB0
Siemens
Siemens Digital Input Module 6ES7321-7BH01-0AB0
['Home', 'Automation Spare Parts', 'Siemens', 'SIMATIC S7-300', 'SM321', '6ES7321-7BH01-0AB0'] Need…
Specifications
| Brand | Siemens |
|---|---|
| Model Number | 6ES7321-7BH01-0AB0 |
| Official Product Name | SIMATIC S7-300 Digital Input SM 321 |
| Applicable System | SIMATIC S7-300 |
| Product Type | Digital Input Module (diagnostic / HF) |
| Equivalent Standard | IEC 61131 Type 2 |
| Product Status | Mature |
| Lifecycle note | Phase-out started (PM400, since 2023-10-01) |
| Input characteristic | IEC 61131 Type 2 (switches, 2/3/4-wire BERO) |
| Isolation | Channel to backplane bus, 500 V DC test |
| Cable length | Unshielded max. 600 m; shielded max. 1000 m |
| Connector | 20-pin front connector |
| Dimensions | 40 x 125 x 117 mm |
| Weight | Approx. 0.2 kg |
| Country of origin | Germany |
| Number of inputs | 16 DI, 24 V DC |
Product Description
Basic Product Information
- Hardware and diagnostic interrupt capability
- Supports isochronous mode
- Programmable diagnostics and input delays
- 16 digital inputs, 24 V DC, isolated in groups of 16
Technical Specifications
Version & Model Difference
- Phase-out started (PM400). SIPLUS version 6AG1321-7BH01-2AB0 exists for harsh environments. Confirm HF configuration requirement with IM153-2BAx2 / IM153-4BA00.
Application Scenarios
- 24 V DC discrete signal acquisition
- Process automation requiring channel-level diagnostics
- Isochronous motion and drive control loops
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