- Programmable Logic Controller (PLC), SIEMENS PLC Systems
Siemens Simatic S7 Digital Input Module 6ES73217RD000AB0
- 6ES73217RD000AB0 Siemens SIMATIC S7, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 4 DI, 24V DC, NAMUR/DIN 19234, F. SIGNALS F HAZARDOUS AREAS, CAPABLE OF DIAGNOST.,PTB-TESTED 6ES7321-7RD00-0AB0
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