Siemens SIMATIC User Manual

Analog modules
6.7 Analog input module SM 331; AI 8 x 12 bit;(6ES7331-7KF02-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
361
Technical specifications
Status, interrupts, diagnostics
Interrupts
• Limit interrupt
• Diagnostic interrupt
programmable
Channels 0 and 2
programmable
Diagnostic functions
• Group error display
• Reading diagnostics information
programmable
red LED (SF)
supported
Encoder selection data
Input ranges (rated values) / input impedance
• Voltage
± 80 mV
± 250 mV
± 500 mV
± 1,000 mV
± 2.5 V
± 5 V
1 V to 5 V
± 10 V
10 MΩ
10 MΩ
10 MΩ
10 MΩ
100 kΩ
100 kΩ
100 kΩ
100 kΩ
• Current
± 3.2 mA
± 10 mA
± 20 mA
0 mA to 20 mA
4 mA to 20 mA
25 Ω
25 Ω
25 Ω
25 Ω
25 Ω
• Resistance
150 Ω
300 Ω
600 Ω
10 MΩ
10 MΩ
10 MΩ
• Thermocouples
Types E, N, J, K, L
10 MΩ
• Resistance thermometer
Pt 100, Ni 100
10 MΩ
Maximum voltage at voltage input (destruction limit)
max. 20 V, continuous
75 V for the duration of max. 1 s (duty factor 1:20)
Maximum current at current input (destruction limit)
40 mA
Wiring of the signal transmitters
using a 20-pin front connector
• for voltage measurement
supported
• for current measurement
as 2-wire transducer
as 4-wire transducer
supported
supported
• For thermoresistor/resistance measurement
with 2-wire connection
Supported, cable resistances are not compensated
with 3-wire connection
Supported, cable resistances are not compensated
with 4-wire connection
Supported, cable resistances are compensated
• Load of the 2-wire transducer
max. 820 Ω
Characteristics linearization
• for thermocouples
programmable
Types E, N, J, K, L
• for resistance thermometers
Pt 100 (Standard and Klima range)
Ni 100 (Standard and Klima range)

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)