Siemens SIMATIC S7-300 Manual page 66

Digital modules
3.8 Digital input module SM 321; DI 16 x DC 24 V; (6ES7321-1BL02-0AA0)
Technical data of SM 321; DI 16 x DC 24 V
Technical data
Dimensions and weight
Dimensions W x H x D (mm)
Weight
Module-specific data
Isochronous mode supported
Number of inputs
Cable length
unshielded
•
shielded
•
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 different circuits
•
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
•
Input current
with "1" signal
•
Input delay
at "1" to "0"
•
at "1" to "0"
•
Input characteristics
Connection of 2-wire BEROs
Permissible quiescent current
•
Wiring signal transducers
3-18
40 x 125 x 117
approx. 200 g
No
16
max. 600 m
max. 1000 m
16
16
Yes
Yes
16
75 VDC / 60 VAC
500 VDC
max. 10 mA
typ. 3.5 W
green LED per channel
None
None
24 VDC
13 V to 30 V
- 30 V 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
with 20-pin front connector
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04