PLC Digital Input Module EM221

The S7-200 PLC range by Siemens achieves what many others cannot - powerful performance in a compact package. Its real-time response is fast, it features great communication options and has software that is simple and easy to operate. The compact modular design enables you to create a customised solution that isn’t overly large, but is flexible enough that you can add to it at any point in the future. Millions of stand-alone and networked applications around the world utilise the Siemens Simatic S7-200, and it's easy to see why.A range of digital and analogue expansion modules to increase the I/O capacity of the S7-200 CPUs. A maximum of 2 modules can be used with S7-222, with a maximum of...