Here’s a concise description of the Siemens 6ES7321-1BL00-0AA0 module:

• Type: Digital Input Module (SM 321) for SIMATIC S7-300 series.

• Inputs: 32 digital inputs.

• Voltage: Operates at 24 V DC.

• Isolation: Electrically isolated inputs for enhanced safety.

• Connector: Requires a 40-pin front connector.

• Dimensions: Compact design with a width of 40 mm, height of 125 mm, and depth of 120 mm.

• Weight: Approximately 260 grams.

• Compliance: Meets RoHS and WEEE directives for environmental safety.

• Applications: Ideal for industrial automation systems requiring reliable digital input handling.