Siemens SIMATIC Manual page 116

Digital modules
3.17 Digital input module SM 321; DI 8 x AC 120/230 V; (6ES7321-1FF01-0AA0)
Technical specifications
Sensor selection data
Input voltage
•
Rated value
•
"1" signal
•
"0" signal
•
Frequency band
Input current
•
"1" signal
120 V, 60 Hz
230 V, 50 Hz
Input delay
•
"0" to "1" transition
•
"1" to "0" transition
Input characteristics
Connection of 2-wire BEROs
•
Permissible quiescent current
Wiring of the signal transducers
116
120/230 VAC
79 V to 264 V
0 V to 40 V
47 Hz to 63 Hz
typ. 6.5 mA
typ. 11 mA
max. 25 ms
max. 25 ms
to IEC 61131, type 1
supported
max. 2 mA
using a 20-pin front connector
Manual, 06/2017, A5E00105505-AJ
S7-300 Module data