Siemens SIMATIC S7-300 Manual page 61

Terminal assignment of SM 321; DI 32 x DC 24 V
The figure below shows the channel addressing (input byte x up to input byte x+3).
Technical data of SM 321; DI 32 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
•
Front connector
Voltages, currents, electrical potentials
Number of simultaneously controlled inputs
horizontal mounting position
•
up to 40 °C
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
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
3.6 Digital input module SM 321; DI 32 x DC 24 V; (6ES7321-1BL00-0AA0)
40 x 125 x 120
approx. 260 g
No
32
max. 600 m
max. 1000 m
40-pin
32
16
32
Yes
Yes
16
75 VDC / 60 VAC
500 VDC
max. 15 mA
typ. 6.5 W
Digital modules
3-13