Siemens SIMATIC Manual page 72

Digital modules
3.7 Digital input module SM 321; DI 32 x DC 24 V; (6ES7321-1BL00-0AA0)
Technical specifications
Current consumption
•
From the backplane bus
Power loss of the module
Status, interrupts, diagnostics
Status display
Interrupts
Diagnostic functions
Encoder selection data
Input voltage
•
Rated value
•
"1" signal
•
"0" signal
Input current
•
"1" signal
Input delay
•
"0" to "1" transition
•
"1" to "0" transition
Input characteristics
Connection of 2-wire BEROs
•
Permissible quiescent current
Connection of the signal transmitters
72
Max. 15 mA
Typ. 6.5 W
Green LED per channel
None
None
24 V DC
13 to 30 V
- 30 to + 5 V
Typ. 7 mA
1.2 ms to 4.8 ms
1.2 ms to 4.8 ms
to IEC 61131, type 1
Supported
Max. 1.5 mA
Using a 40-pin front connector
Manual, 06/2017, A5E00105505-AJ
S7-300 Module data