Siemens 6ES7331-7NF10-0AB0
SM 331 analog input, 8 AI, 16 bit, U/I, 4-channel fast mode
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Siemens SIMATIC S7-300 SM 331 analog input module: 8 isolated inputs, ±5/10 V, 1-5 V, ±20 mA, 0/4-20 mA, 16-bit resolution, 10 ms in 4-channel mode, 40-pole front connector.
- Manufacturer
- Siemens
- Manufacturer part no.
- 6ES7331-7NF10-0AB0
- Product family
- SIMATIC S7-300 PLC Modules
- Type
- Analog input module
- Category
- PLCs and I/O › Analogue I/O modules
- Lifecycle
- Discontinued
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Siemens
- Manufacturer part no.
- 6ES7331-7NF10-0AB0
- Type
- Analog input module
- Application
- Analog input module
- Used with
- SIMATIC S7-300 rack (S7-300 backplane bus)
- Product function / Isochronous mode
- No
- Load voltage L+ / Rated value (DC)
- 24 V
- Load voltage L+ / Reverse polarity protection
- Yes
- Input current / from load voltage L+ (without load), max.
- 200 mA
- Input current / from backplane bus 5 V DC, max.
- 100 mA
- Power loss, typ.
- 3 W
- Number of analog inputs
- 8
- Analog inputs / permissible input voltage for voltage input (destruction limit), max.
- 75 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20)
- Analog inputs / permissible input current for current input (destruction limit), max.
- 40 mA
- Input ranges / Voltage
- Yes
- Input ranges / Current
- Yes
- Input ranges / Thermocouple
- No
- Input ranges / Resistance thermometer
- No
- Input ranges / Resistance
- No
- Input ranges (rated values), voltages / 0 to +10 V
- No
- Input ranges (rated values), voltages / 1 V to 5 V
- Yes
- Input ranges (rated values), voltages / 1 V to 5 V / Input resistance (1 V to 5 V)
- 10 MΩ
- Input ranges (rated values), voltages / 1 V to 10 V
- No
- Input ranges (rated values), voltages / -1 V to +1 V
- No
- Input ranges (rated values), voltages / -10 V to +10 V
- Yes
- Input ranges (rated values), voltages / -10 V to +10 V / Input resistance (-10 V to +10 V)
- 10 MΩ
- Input ranges (rated values), voltages / -2.5 V to +2.5 V
- No
- Input ranges (rated values), voltages / -250 mV to +250 mV
- No
- Input ranges (rated values), voltages / -5 V to +5 V
- Yes
- Input ranges (rated values), voltages / -5 V to +5 V / Input resistance (-5 V to +5 V)
- 10 MΩ
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- Input ranges (rated values), voltages / -50 mV to +50 mV
- No
- Input ranges (rated values), voltages / -500 mV to +500 mV
- No
- Input ranges (rated values), voltages / -80 mV to +80 mV
- No
- Input ranges (rated values), currents / 0 to 20 mA
- Yes
- Input ranges (rated values), currents / 0 to 20 mA / Input resistance (0 to 20 mA)
- 250 Ω
- Input ranges (rated values), currents / -10 mA to +10 mA
- No
- Input ranges (rated values), currents / -20 mA to +20 mA
- Yes
- Input ranges (rated values), currents / -20 mA to +20 mA / Input resistance (-20 mA to +20 mA)
- 250 Ω
- Input ranges (rated values), currents / -3.2 mA to +3.2 mA
- No
- Input ranges (rated values), currents / 4 mA to 20 mA
- Yes
- Input ranges (rated values), currents / 4 mA to 20 mA / Input resistance (4 mA to 20 mA)
- 250 Ω
- Input ranges (rated values), thermocouples / Type B
- No
- Input ranges (rated values), thermocouples / Type C
- No
- Input ranges (rated values), thermocouples / Type E
- No
- Input ranges (rated values), thermocouples / Type J
- No
- Input ranges (rated values), thermocouples / Type K
- No
- Input ranges (rated values), thermocouples / Type L
- No
- Input ranges (rated values), thermocouples / Type N
- No
- Input ranges (rated values), thermocouples / Type R
- No
- Input ranges (rated values), thermocouples / Type S
- No
- Input ranges (rated values), thermocouples / Type T
- No
- Input ranges (rated values), thermocouples / Type U
- No
- Input ranges (rated values), thermocouples / Type TXK/TXK(L) to GOST
- No
- Input ranges (rated values), resistance thermometer / Cu 10
- No
- Input ranges (rated values), resistance thermometer / Ni 100
- No
- Input ranges (rated values), resistance thermometer / Ni 1000
- No
- Input ranges (rated values), resistance thermometer / LG-Ni 1000
- No
- Input ranges (rated values), resistance thermometer / Ni 120
- No
- Input ranges (rated values), resistance thermometer / Ni 200
- No
- Input ranges (rated values), resistance thermometer / Ni 500
- No
- Input ranges (rated values), resistance thermometer / Pt 100
- No
- Input ranges (rated values), resistance thermometer / Pt 1000
- No
- Input ranges (rated values), resistance thermometer / Pt 200
- No
- Input ranges (rated values), resistance thermometer / Pt 500
- No
- Input ranges (rated values), resistors / 0 to 150 ohms
- No
- Input ranges (rated values), resistors / 0 to 300 ohms
- No
- Input ranges (rated values), resistors / 0 to 600 ohms
- No
- Input ranges (rated values), resistors / 0 to 6000 ohms
- No
- Cable length / shielded, max.
- 200 m
- Integration and conversion time/resolution per channel / Resolution with overrange (bit including sign), max.
- 16 bit; Unipolar: 15/15/15/15 bit; bipolar: 15 bit + sign/15 bit + sign/15 bit + sign/15 bit + sign
- Integration and conversion time/resolution per channel / Integration time, parameterizable
- Yes; 23 / 72 / 83 / 95 ms
- Integration and conversion time/resolution per channel / Basic conversion time (ms)
- 10 ms (4-channel mode); 95/83/72/23 ms (8-channel mode)
- Integration and conversion time/resolution per channel / Interference voltage suppression for interference frequency f1 in Hz
- 400 / 60 / 50 Hz, combinations of 400, 60, 50 Hz
- Connection of signal encoders / for voltage measurement
- Yes
- Connection of signal encoders / for current measurement as 2-wire transducer
- Yes; with external transmitter, current supply; possible with separate supply for transmitter
- Connection of signal encoders / for current measurement as 4-wire transducer
- Yes
- Operational error limit in overall temperature range / Voltage, relative to input range, (+/-)
- 0.1 %
- Operational error limit in overall temperature range / Current, relative to input range, (+/-)
- 0.1 %
- Basic error limit (operational limit at 25 °C) / Voltage, relative to input range, (+/-)
- 0.05 %
- Basic error limit (operational limit at 25 °C) / Current, relative to input range, (+/-)
- 0.05 %
- Interrupts/diagnostics/status information / Diagnostics function
- Yes; Parameterizable
- Alarms / Diagnostic alarm
- Yes; Parameterizable
- Alarms / Limit value alarm
- Yes; Parameterizable all channels (end of cycle interrupt is also supported across modules)
- Alarms / Hardware interrupt
- Yes; Parameterizable, channels 0 to 7 (on exceeding limit value), at end of cycle
- Diagnoses / Diagnostic information readable
- Yes
- Diagnostics indication LED / Group error SF (red)
- Yes
- Potential separation analog inputs / between the channels
- Yes
- Potential separation analog inputs / between the channels, in groups of
- 2
- Potential separation analog inputs / between the channels and backplane bus
- Yes
- Potential separation analog inputs / between the channels and the power supply of the electronics
- Yes
- Isolation tested with
- 500 V AC
- required front connector
- 40-pin
- Width
- 40 mm
- Height
- 125 mm
- Depth
- 117 mm
- Weight, approx.
- 272 g
Technical documents (1)
Key features
- 8 analog inputs: ±5 V, ±10 V, 1 to 5 V, ±20 mA, 0/4 to 20 mA
- 16-bit resolution
- 4-channel mode: 10 ms; 8-channel mode: 23 to 95 ms
- Hardware interrupt on limit values and at end of cycle; diagnostics
- Discontinued by Siemens on 1 October 2025; spare part only
About the Siemens 6ES7331-7NF10-0AB0
The Siemens 6ES7331-7NF10-0AB0 covers the same voltage and current ranges as the 6ES7331-7NF00-0AB0 and is a separate order number: Siemens's data sheet for this one gives a 4-channel mode converting in 10 ms (23 to 95 ms in 8-channel mode), and hardware interrupts on limit values and at the end of a cycle. It has 8 inputs isolated in groups of 2, 16-bit resolution and a 40-pin front connector. Siemens's data sheet marks it as a spare part.
What is the 6ES7331-7NF10-0AB0 used for?
It reads transmitters and other analog signals into an S7-300 CPU at 16-bit resolution, with a faster mode when only four channels are used.
Lifecycle and successor
Discontinued.
Before you order
What to photograph or confirm so the right unit is quoted.
Check the order number on the module: 7NF10 and 7NF00 are different modules with the same input ranges.
Other parts in the Siemens SIMATIC S7-300 family
Listed for reference. They differ from the 6ES7331-7NF10-0AB0 in rating, supply, interface or function and are not interchangeable with it unless Siemens says so. Match the part number on your unit.
| Product | Type | Lifecycle | Qty Available | Price | Action |
|---|---|---|---|---|---|
| Siemens 6ES7331-7KF02-0AB0SM 331 analog input, 8 AI, U/I/thermocouple/resistance | Analog input module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-7KB02-0AB0SM 331 analog input, 2 AI, U/I/thermocouple/resistance | Analog module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-1KF02-0AB0SM 331 analog input, 8 AI, 13 bit, U/I/resistance/Pt100/Ni | Analog module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-7NF00-0AB0SM 331 analog input, 8 AI, 16 bit, U/I | Analog module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-7PF01-0AB0SM 331 analog input, 8 AI, RTD, 16 bit | Analog module | Discontinued | On Request | On request | View |
| Siemens 6ES7332-5HD01-0AB0SM 332 analog output, 4 AO, voltage/current | Analog output module | Discontinued | On Request | On request | View |
| Siemens 6ES7334-0KE00-0AB0SM 334 analog module, 4 AI / 2 AO, 12 bit | Analog I/O module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-7HF01-0AB0SM 331 analog input, 8 AI, 14 bit, 52 µs per channel | Analog input module | Discontinued | On Request | On request | View |
| Siemens 6ES7331-7PF11-0AB0SM 331 analog input, 8 AI, thermocouples, 16 bit | Analog input module | Discontinued | On Request | On request | View |
| Siemens 6ES7332-5HB01-0AB0SM 332 analog output, 2 AO, voltage/current, 12 bit | Analog output module | Discontinued | On Request | On request | View |
| Siemens 6ES7332-7ND02-0AB0SM 332 analog output, 4 AO, 16 bit, isolated per channel | Analog output module | Discontinued | On Request | On request | View |
| Siemens 6ES7338-4BC01-0AB0SM 338 position input module, 3 SSI encoders | Position input module | Discontinued | On Request | On request | View |
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