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| Brand Name : | SIEMENS |
| Model Number : | 6ES7321-1BH02-0AA0 |
| Price : | 1-99$ |
| Payment Terms : | T/T |
| Delivery Time : | in stock / 1-3 work days |
| Supply Ability : | 999 |
SIEMENS 6ES7321-1BH02-0AA0 Digital Input SM 321:
IMATIC S7-300, Digital input SM 321, isolated, 16 DI, 24 V DC, 1x 20-pole.
The Siemens 6ES7 321-1BH02-0AA0 is a digital input module designed for the SIMATIC S7-300 PLC series, specializing in connecting standard switches and two-wire proximity switches (BERO) in industrial automation systems. It enables seamless integration of digital signals into PLC-based control architectures, ensuring reliable data acquisition for processes ranging from discrete manufacturing to continuous production.
Technical Specifications:
| Parameter | Details |
|---|---|
| Product Type | SM 321 Digital Input Module |
| Order Code | 6ES7 321-1BH02-0AA0 |
| Input Type | 16 × 24V DC digital inputs (sink/source configurable) |
| Isolation | Optical isolation between inputs and PLC backplane |
| Power Supply | 24V DC via S7-300 backplane or external supply |
| Current Consumption | ≤ 120mA (from 24V supply) |
| Connector Type | 20-pin front connector (pre-wired or field-attachable) |
| Mounting | DIN rail (EN 50022) or direct chassis mounting |
| Certifications | CE, UL, RoHS-compliant (verify with supplier for specific compliance) |
| Software Compatibility | STEP 7 (TIA Portal) for configuration and diagnostics |
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