Analog modules
6.7 Analog input module SM 331; AI 8 x 12 Bit;(6ES7331-7KF02-0AB0)
S7-300 Automation System Module data
6-56 Manual, 08/2006, A5E00105505-04
Technical data
Transducer selection data
Input ranges (rated values) / input impedance
• Voltage
± 80 mV
± 250 mV
± 500 mV
± 1000 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 thermometers
Pt 100, Ni 100 /10 MΩ
Permissible voltage at voltage input (destruction limit) max. 20 V, continuous
75 V for the duration of max. 1 s (duty factor 1:20)
Permissible current at current input (destruction limit) max. 40 mA
Wiring signal transducers with 20-pin front connector
• for voltage measurement
supported
• for current measurement
as 2-wire transducer
as 4-wire transducer
supported
supported
• for resistance measurement
with 2-wire connection
possible, no compensation for line resistor
with 3-wire connection supported
with 4-wire connection supported
• Load of the 2-wire transducer
max. 820 Ω
Characteristic 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)
Temperature compensation
• Internal temperature compensation
programmable
supported
• External temperature compensation with compensating
box
supported
• Compensation for 0 °C reference junction temperature
supported
• Technical unit of temperature measurements
Degrees Centigrade
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