6ES7322-1EL00-0AA0 Siemens S7-300


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Product description
Siemens SM 321 Digital Input Module (6ES7321-1EL00-0AA0)
The SM 321 DI 32 x AC 120 V is a digital input module designed for SIMATIC S7-300 automation systems. It provides 32 electrically isolated inputs grouped in sets of 8, supporting reliable signal acquisition from switches and 2-/3-wire AC proximity sensors. With a rated input voltage of 120 VAC, the module ensures robust performance in demanding industrial environments.
Key features include:
- Compact design: 40 x 125 x 117 mm, approx. 300 g
- Input isolation between groups, up to 250 VAC
- Long cable runs: up to 600 m unshielded or 1000 m shielded
- Individual green LED status indicators for each channel
- Simple front-connector wiring with a 40-pin interface
Engineered for high reliability, the SM 321 module offers consistent signal detection with input delay times up to 25 ms and meets IEC 61131 type 2 standards. Its rugged design and straightforward diagnostics make it ideal for industrial automation applications where safe and efficient digital input handling is critical.
Siemens SM 321 Digital Input Module (6ES7321-1EL00-0AA0)
The SM 321 DI 32 x AC 120 V is a digital input module designed for SIMATIC S7-300 automation systems. It provides 32 electrically isolated inputs grouped in sets of 8, supporting reliable signal acquisition from switches and 2-/3-wire AC proximity sensors. With a rated input voltage of 120 VAC, the module ensures robust performance in demanding industrial environments.
Key features include:
- Compact design: 40 x 125 x 117 mm, approx. 300 g
- Input isolation between groups, up to 250 VAC
- Long cable runs: up to 600 m unshielded or 1000 m shielded
- Individual green LED status indicators for each channel
- Simple front-connector wiring with a 40-pin interface
Engineered for high reliability, the SM 321 module offers consistent signal detection with input delay times up to 25 ms and meets IEC 61131 type 2 standards. Its rugged design and straightforward diagnostics make it ideal for industrial automation applications where safe and efficient digital input handling is critical.