6ES7421-7DH00-0AB0: Siemens S7-400 Digital Input Guide
No Comments on 6ES7421-7DH00-0AB0: Siemens S7-400 Digital Input Guide
The 6ES7421-7DH00-0AB0 functions as a digital input module within the Siemens SIMATIC S7-400 PLC family. This hardware converts binary signals from the process level into the internal logic levels of the central processing unit. Because the module…