6ES7331-7HF01-0AB0 - Siemens
MPN6ES7331-7HF01-0AB0
End of Life
SIMATIC S7-300, Analog input SM 331, isolated, 8 AI, resolution 14 bit, 0.052 ms/channel current, Voltage alarm, diagnostics, 1x 20-pole, suitable for isochronous mode Improved bus cycle time for isochronous mode
$762.00 – $1,790.00Ref. price · indicative, final on quote
StockContact for availability
Lead timeCall for availability wk
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Inputs & Signal Ranges
| Parameter | Value |
|---|---|
| Number of analog inputs | 8 |
| Current input range | Yes |
| Voltage input range | Yes |
| Resistance measuring ranges | No |
| RTD support (resistance thermometer) | No |
| Thermocouple support (types) | No |
| Input range: 0 to 20 mA | Yes |
| Input range: 4 to 20 mA | Yes |
| Input range: -10 to +10 V | Yes |
| Input range: -5 to +5 V | Yes |
| Input range: -80 to +80 mV | Yes |
| Current measurement: 2-wire transducer | Yes |
| Current measurement: 4-wire transducer | Yes |
| Input resistance (0 to 20 mA) | 50 Ω |
| Input resistance (4 to 20 mA) | 50 Ω |
| Input resistance (-10 to +10 V) | 100 kΩ |
| Permissible input voltage, max. (destruction limit) | 20 V; 20 V DC permanent, 75 V DC for max. 1 s (duty factor 1:20) |
| Permissible input current, max. (destruction limit) | 40 mA |
| Max. shielded signal cable length | 200 m |
Measurement Performance
| Parameter | Value |
|---|---|
| Resolution (bit incl. sign), max. | 14 bit; Unipolar: 14 bit; bipolar: 13 bit + sign |
| Voltage measurement error (±) | 0.25 % |
| Current measurement error (±) | 0.2 % |
| Interference voltage suppression (at interference frequency) | none / 400 / 60 / 50 Hz |
Diagnostics & Monitoring
| Parameter | Value |
|---|---|
| Diagnostic alarm | Yes; Parameterizable |
| Diagnostics function | Yes |
| Limit value alarm | Yes; Parameterizable, channels 0 and 2 |
Isolation
| Parameter | Value |
|---|---|
| Isolation: channels to backplane bus | Yes |
| Isolation: between channels | No |
| Isolation test voltage | 500 V DC |
Power
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Power loss, typ. | 1.5 W |
| Reverse polarity protection | Yes |
Mechanical
| Parameter | Value |
|---|---|
| Required front connector | 20-pin |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 117 mm |
| Weight, approx. | 230 g |
MPN
6ES7331-7HF01-0AB0