Siemens SIMATIC S7-300 Manual page 92

Digital modules
3.15 Digital input module SM 321; DI 8 x 120/230 VAC (6ES7321-1FH01-0AA0)
Technical data
Voltages, currents, electrical potentials
Number of simultaneously controlled inputs
horizontal mounting position
•
up to 60 °C
vertical mounting position
•
up to 40 °C
Electrical isolation
between channels and the backplane bus
•
between channels
•
in groups of
Permissible potential difference
between M and inputs
•
internal
between inputs of different groups
•
Isolation test voltage
Current consumption
from the backplane bus
•
Power loss of the module
Status, interrupts, diagnostics
Status display
Interrupts
Diagnostics functions
Transducer selection data
Input voltage
Rated value
•
for "1" signal
•
for "0" signal
•
Frequency band
•
Input current
with "1" signal
•
120 V, 60 Hz
230 V, 50 Hz
Input delay
at "1" to "0"
•
at "1" to "0"
•
Input characteristics
Connection of 2-wire BEROs
Permissible quiescent current
•
Wiring signal transducers
3-44
8
8
Yes
Yes
2
230 VAC
500 VAC
4000 VDC
max. 29 mA
typ. 4.9 W
green LED per channel
None
None
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
with 20-pin front connector
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04