(400) Digital In-/Output
- 6ES7421-1BL01-0AA0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 32 DI; DC 24V - 6ES7421-1EL00-0AA0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 32 DI, 120V DC/AC - 6ES7421-1FH00-0AA0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 16 DI, 120/230V AC - 6ES7421-1FH20-0AA0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 16 DI, 120/230V AC - 6ES7421-7BH00-0AB0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 16 DI; DC 24V - 6ES7421-7BH01-0AB0
SIMATIC S7-400,
SM 421 DIGITAL INPUT 16 DI; DC 24V