Siemens 6ES7138-4FA04-0AB0 Digital Input Module ET-200S

The Siemens Digital Input Module ET-200S, also known as a digital input card, binary input module, or signal module, with type number 6ES7138-4FA04-0AB0, is an electrical module for the acquisition and transmission of digital signals in automation systems. It has the dimensions 9 x 6 x 4 cm and weighs 0.09 kg. Another part number for this product is WH.095832279 from Contiweb. Digital input modules convert external binary states from sensors and switches into electrical signals that can be processed by a programmable logic controller (PLC) to monitor the status of machines and systems. They find typical applications in industrial automation for process data acquisition and monitoring, as well as in mechanical and plant engineering for the control and diagnosis of manufacturing processes.