SIMATIC S7-300. DIGITAL INPUT SM 321. GALVANICALLY ISOLATED. 16 DI. DC 24V. 1 X 20 PIN. PROCESS INTERRUPT. DIAGNOSTICS. FIT FOR ISOCHRONE MODE

SIMATIC S7/PCS 7. SM 321 DIGITAL INPUT. 16 DI. DC 24/125V. 1 X 40-PIN FRONT CONNECTOR WITH WIRE BREAK DIAGNOSIS HARDWARE INTERRUPT DIAGNOSTICS

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

SIMATIC S7/PCS7. SM 321 DIGITAL INPUT MODULE. 16 DI. 24V DC. 1 X 40 PIN. CAPABLE OF DIAGNOSTICS. FOR CONTACTS (CONNECTED/ UNCONNECTED). NAMUR SENSOR. 3/4-WIRE-BERO. WITH FLUTTER MONITORING. PULSE LENGTHENING. WIRE BREAK DETECTION. IM153-2 INTERFACE MOD. REQUIRED

SIMATIC S7-300. DIGITAL MODULE SM 323. OPTICALLY ISOLATED. 8 DI AND 8 DO. 24V DC. 0.5A AGGREGATE CURRENT 2A. 1X20 PIN