Product features:
Dimensions of Compact Modules
Comprehensive features and modules to achieve optimal adaptation to automation tasks
Implementation of distributed architecture using PROFIBUS and PROFINET for simple and flexible applications
Noise free cooling and free maintenance (no need for backup batteries)
The integral function has a very powerful function
Product Data
Product：SIMATIC S7-300 SM 321, DI 32xDC 24V PLC Expansion Module
Product model：6ES7321-1BL00-4AA1
Product type：S7-300 digital extension
Applicable to safety functions：no
Digital input quantity：thirty-two
Digital output：0
Supply voltage type：DC