6ES7321-1BL00-0AA0

Manufacturer: Siemens

6ES7321-1BL00-0AA0 Siemens SIMATIC S7-300 CPU Module

This is a Siemens SIMATIC S7-300 series CPU module (part number 6ES7321-1BL00-0AA0) used as the central processing unit in S7-300 modular PLC racks. It provides program execution, task management and communication with I/O and function modules in the S7-300 system. The module is installed on the S7-300 DIN-rail rack and programmed using Siemens STEP 7 engineering software. Typical use is medium-scale industrial automation control where S7-300 hardware is already deployed.