Digital modules
3.17 Digital input module SM 321; DI 8 x AC 120/230 V; (6ES7321-1FF01-0AA0)
S7-300 Module data
116 Manual, 06/2017, A5E00105505-AJ
Input voltage
• Rated value
• "1" signal
• "0" signal
• Frequency band
120/230 VAC
79 V to 264 V
0 V to 40 V
47 Hz to 63 Hz
Input current
• "1" signal
120 V, 60 Hz
typ. 6.5 mA
typ. 11 mA
Input delay
• "0" to "1" transition
• "1" to "0" transition
max. 25 ms
max. 25 ms
Connection of 2-wire BEROs
• Permissible quiescent current
supported
max. 2 mA
Wiring of the signal transducers
using a 20-pin front connector