PLC S7-400 Siemens: Digital Input Module

6ES7421-1BL01-0AA0 SIMATIC S7-400, SM 421
DIGITAL INPUT MODULE,
OPTIC. ISOLATED, 32 DI, 24V DC
6ES7421-1EL00-0AA0 SIMATIC S7-400, SM 421
DIGITAL INPUT MODULE,
FLOATING, 32 DI, 120V DC/AC
6ES7421-1FH20-0AA0 SIMATIC S7-400, DIG.INPUT MOD.
SM 421, OPTIC. ISOLATED,
16 DI, 120/230V UC
INPUTS PER IEC1131-2 TYPE 2
6ES7421-7BH01-0AB0 SIMATIC S7-400, DIGITAL INPUT
SM 421, GALVANICALLY ISOLATED,
16 DI, 24V DC WITH
0.05 MS INPUT DELAY,
ALARM, DIAGNOSTICS
6ES7421-7DH00-0AB0 SIMATIC S7-400, SM 421
DIGITAL INPUT MODULE,
OPTIC. ISOLATED, 16 DI,
24 – 60V UC, ALARM, DIAGNOSTICS

 

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