Siemens SIMATIC - Page 72

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