Siemens replacement Programming Logic Controller 200 Digital Input Module UN221-1BF22-0XA0

Siemens replacement Programming Logic Controller 200 Digital Input Module Quick description : 1). EM221 8 DI , 24V DC ; 2). Compatible with Siemens 6ES7221-1BF22-0XA0 ; 3). Digital Input module ; 4). Could connect with Siemens 200 CPU ; 5). 3-year warranty ; Detail description : Model EM221 8 inputs EM221 16 inputs EM221 32 inputs Product Description 8DI,24VDC; Optical isolation with high immunity 16DI,24VDC; Optical isolation with high immunity 32DI,24VDC; Optical isolation