Performance Characteristics Of The Digital Modules - Siemens SIMATIC S7-400 Configuration And Use Manual

Signal Modules of the S7-400

Performance Characteristics of the Digital Modules

Table 3-1 provides an overview of the performance characteristics of the S7-400
digital modules.
Table 3-1 Performance Characteristics of the Digital Modules
Module
Digital input module SM 421
DI 32 x 24 V DC
6ES7421-1BLxx-0AA0
DI 16 x 24 V DC
6ES7421-7BHxx-0AB0
DI 16 x 24/60 V UC
6ES7421-7DHxx-0AB0
DI 16 x 120/230 V UC
6ES7421-1FHxx-0AA0
3-6
Performance characteristics
•
32 inputs, isolated in a group of 32
•
Rated input voltage 24 V DC
•
Suitable for switches and 2/3/4 wire proximity switches (BEROs,
IEC 61131-2; Typ 1)
•
16 inputs, isolated in 2 groups of 8
•
Very fast signal processing: Input filter from 50 µs
•
Rated input voltage 24 V DC
•
Suitable for switches and 2/3/4 wire proximity switches
(BEROs, IEC 61131-2; Typ 2)
•
2 short-circuit-proof encoder supplies for 8 channels each
•
Optional external redundant power supply to supply encoders
•
"Encoder supply (Vs) OK" status display
•
Group error display for internal and external faults
•
Programmable diagnostics
•
Programmable diagnostic interrupt
•
Programmable hardware interrupt
•
Programmable input delays
•
Programmable substitute values in the input range
•
16 inputs, isolated in 16 groups of 1
•
Rated input voltage 24 V UC to 60 V UC
•
Suitable for switches and 2-wire proximity switches (BEROs)
•
Suitable as active high and active low input
•
Group error display for internal and external faults
•
Programmable diagnostics
•
Programmable diagnostic interrupt
•
Programmable hardware interrupt
•
Programmable input delays
•
16 inputs, isolated in 4 groups of 4
•
Rated input voltage 120/230 V UC
•
Suitable for switches and 2-wire proximity switches
With a second version:
•
Input characteristic curve according to IEC 61131-2; Type 2
Automation System S7-400 Configuration and Use
A5E00442711-02