SIMATIC S7-300. DIGITAL INPUT SM 321. OPTICALLY ISOLATED. 8 DI. 120V/230V AC. 1 X 20 PIN
SIMATIC S7-300 DIGITAL INPUT SM321. OPTICALLY ISOLATED IN GROUPS OF 16. 64 DI.DC 24V. 3MS. SINKING/SOURCING TERMINAL BLOCKS 6ES7392-1.N00-0AA0 AND CABLES 6ES7392-4...0-0AA0 NECESSARY
SIMATIC S7-300. DIGITAL INPUT SM 321. OPTICALLY ISOLATED. 32 DI. 120V AC. 1 X 40 PIN
SIMATIC S7-300. DIGITAL INPUT SM 321. OPTICALLY ISOLATED. 16 DI. AC/DC 24 - 48V WITH ONE CHANNEL PER COMMON. 1 X 40 PIN