Digital modules
3.16 Digital input module SM 321; DI 8 x 120/230 VAC ISOL (6ES7321-1FF10-0AA0)
S7-300 Automation System Module data
3-46 Manual, 08/2006, A5E00105505-04
Technical data of SM 321; DI 8 x AC 120/230 V ISOL
Technical data
Dimensions and weight
Dimensions W × H × D 40 × 125 × 117
Weight approx. 240 g
Module-specific data
Isochronous mode supported No
Number of inputs 8
Cable length
• unshielded
• shielded
max. 600 m
max. 1000 m
Voltages, currents, electrical potentials
Rated load voltage L1
All load voltages must be connected to a common phase
120/230 VAC
Number of simultaneously controlled inputs
• Horizontal mounting position up to 60 °C
8
• Vertical mounting position up to 40 °C
8
Electrical isolation
• between channels and the backplane bus
Yes
• Between channels
in groups of
Yes
1
Permissible potential difference
• between M
internal
and inputs
230 VAC
• between inputs of different groups
500 VAC
Isolation test voltage
• between M
internal
and inputs
1500 VAC
• between inputs of different groups
2000 VAC
Current consumption
• from the backplane bus
max. 100 mA
Power loss of the module typ. 4.9 W
Status, interrupts, diagnostics
Status display green LED per channel
Interrupts None
Diagnostics functions None
Transducer selection data
Input voltage
• Rated value
• for "1" signal
• for "0" signal
• Frequency band
120/230 VAC
79 V to 264 V
0 V to 40 V
47 Hz to 63 Hz
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