Siemens SIMATIC Manual page 71

Terminal assignment of SM 321; DI 32 x DC 24 V
The figure below shows how channels are assigned to addresses (input byte x up to input
byte x+3).
Technical specifications of SM 321; DI 32 x DC 24 V
Technical specifications
Dimensions and weight
Dimensions W x H x D (mm)
Weight
Module-specific data
Supports isochronous mode
Number of inputs
Cable length
•
Unshielded
•
Shielded
Front connector
Voltages, currents, potentials
Number of simultaneously controlled inputs
•
Horizontal mounting position
to 40 °C
to 60 °C
•
Vertical arrangement
to 40 °C
Electrical isolation
•
between channels and the backplane bus
•
Between channels
– in groups of
Isolation test voltage
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
3.7 Digital input module SM 321; DI 32 x DC 24 V; (6ES7321-1BL00-0AA0)
40 x 125 x 120
ca. 260 g
No
32
Max. 600 m
Max. 1000 m
40-pin
32
16
32
yes
Yes
16
500 V DC
Digital modules
71