Siemens SIMATIC User Manual

Analog modules
6.4 Analog input module SM 331; AI 8 x 16 Bit; (6ES7331-7NF10-0AB0)
S7-300 Module data
322 Manual, 06/2017, A5E00105505-AJ
Technical specifications
Status, interrupts, diagnostics
Interrupts
• Hardware interrupt when limit value is exceeded
• Hardware interrupt at end of cycle
• Diagnostic interrupt
Programmable channels 0 to 7
programmable
programmable
Diagnostic functions programmable
• Group error display
• Reading diagnostic information
red LED (SF)
supported
Encoder selection data
Input range (rated values) / input impedance
• Voltage
± 5 V / 2 MΩ
1 V to 5 V / 2 MΩ
± 10 V / 2 MΩ
• Current
0 mA to 20 mA / 250 Ω
4 mA to 20 mA / 250 Ω
± 20 mA / 250 Ω
Maximum voltage at voltage input (destruction limit) 35 V continuous; 75 V for max. duration of 1 s (duty
factor 1:20)
Maximum current at current input (destruction limit)
40 mA
Wiring of the signal transmitters
using a 40pin front connector
• for voltage measurement
• for current measurement
as 2-wire transducer
as 4-wire transducer
supported
possible, with separate transducer supply
supported
1)
Interference frequency for 4-channel mode is "All"
2)
Interference frequencies 50/60/400 Hz are designated as "All"
3)
The series mode rejection in 8-channel mode is reduced as follows:
50 Hz > 70 db
60 Hz > 70 db
400 Hz > 80 dB
50/60/400 Hz > 90 dB
4)
In 4-channel mode, the converted value settles to 100% within 80 ms. The value determined in this process is returned
at intervals of max. 10 ms.

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)