Siemens 6ES5 421-8MA12 Digital Input

The digital input module, also known as binary input or digital input card, with type number 6ES5 421-8MA12 from Siemens is an electrical input module for processing binary signals in control systems. It has the dimensions 14 x 5 x 11 cm and weighs 0.2 kg. Digital input modules are used to detect binary signals from sensors or switches and transmit them to a control system to monitor the status of processes or machines. Typical applications include industrial automation for status monitoring of machines and process control technology for recording operating or fault messages.