Siemens SIMATIC Manual page 84

Digital modules
3.11 Digital input module SM 321; DI 16 x 24 VDC; with hardware and diagnostic interrupts (6ES7321-7BH01-
0AB0)
Technical specifications
Status, interrupts, diagnostics
Status display
•
Inputs
•
Sensor supplies (Vs)
Interrupts
•
Hardware interrupt
•
Diagnostic interrupt
Diagnostic functions
•
Group error display
•
Reading diagnostic information
Monitoring for
•
wirebreak
Sensor supply outputs
Number of outputs
Output voltage
•
on load
Output current
•
Rated value
•
Permitted range
Additional (redundant) supply
Short-circuit protection
Encoder selection data
Input voltage
•
Rated value
•
"1" signal
•
"0" signal
Input current
•
"1" signal
Input characteristics
Connection of 2-wire BEROs
•
Permissible quiescent current
Wiring of the signal transmitters
Shunt circuit of the sensor for wire-break detection
84
green LED per channel
green LED per output
programmable
programmable
programmable
red LED (SF)
supported
yes, sensing I < 1 mA
2
min. L+ (- 2.5 V)
120 mA
0 mA to 150 mA
supported
yes, electronic
24 V DC
13 V to 30 V
-30 V to + 5 V
typ. 7 mA
to IEC 61131, type 2
supported
max. 2 mA
using a 20-pin front connector
10 kohms to 18 kohms
Manual, 06/2017, A5E00105505-AJ
S7-300 Module data