Product Name: SIMATIC S7-300 SM 331 Analog Input Module
Brand Name: Siemens
Model Number: 6ES7331-7KF02-0AB0
Place of Origin: Germany
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
| Sales | Phone/Whatsapp | |
| Jim Pei | [email protected] | +86 18020776782 |
| Specification | Official Value |
| Article number | 6ES7331-7KF02-0AB0 |
| Product family | SIMATIC S7-300 signal modules |
| Module designation | SM 331 analog input module |
| Module type | Isolated analog input |
| Number of analog inputs | 8 |
| Channel organization | 4 channel groups; 2 channels per group |
| Inputs for resistive transducers | 4 |
| Programmable measurement type | Per channel group |
| Supported measurement types | Voltage, current, resistance, resistance thermometer, thermocouple |
| Resolution | 9 / 12 / 14 bits (depending on integration time) |
| Voltage ranges | ±80 mV; ±250 mV; ±500 mV; ±1 V; ±2.5 V; ±5 V; ±10 V; 1 to 5 V |
| Current ranges | ±3.2 mA; ±10 mA; 0 to 20 mA; 4 to 20 mA; ±20 mA |
| Resistance ranges | 150 Ω; 300 Ω; 600 Ω |
| Thermocouple types | E, N, J, K, L |
| Resistance thermometers | Pt100 / Ni100 |
| Integration times | 2.5 ms; 16.67 ms; 20 ms; 100 ms |
| Interference suppression frequencies | 400 Hz; 60 Hz; 50 Hz; 10 Hz |
| Measurement method | Integrating |
| Shielded cable length | Maximum 200 m |
| Cable length for 80 mV and thermocouples | Maximum 50 m |
| Rated load voltage | 24 V DC |
| Galvanic isolation | Between channels and backplane bus |
| Diagnostic functions | Programmable diagnostics |
| Diagnostic alarm | Supported |
| Process alarm | Supported |
| Limit monitoring | Programmable |
| Parameter assignment | Via STEP 7 / S7-300 hardware configuration |
| Front connector | 1 × 20-pole |
| Removal/insertion | Supported with active backplane bus |
| Suitable distributed I/O station | ET 200M |
| Operating temperature, horizontal installation | 0 to +60 °C |
| Operating temperature, vertical installation | 0 to +40 °C |
| Product status | Spare part |
| Minimum Order Quantity | 1 Piece |
| Price | Contact for Jim |
| Packaging Details | Original new Factory Sealed |
| Delivery Time | 3–7 Days |
| Payment Terms | T/T |
| Shipping Method | DHL / FedEx / UPS / TNT |
| Supply Ability | In stock |
6ES7331-7KF02-0AB0 is the exact Siemens article number for the SIMATIC S7-300 SM 331 isolated analog input module. It provides eight analog inputs arranged in four channel groups and supports voltage, current, thermocouple, resistance, and resistance-thermometer measurements. Selectable 9-, 12-, or 14-bit resolution, programmable diagnostics, alarms, and limit monitoring support precise signal acquisition in industrial control systems. This Siemens SIMATIC S7-300 analog input module is designed for dependable integration into modular automation architectures. It is a practical choice for replacement, maintenance, and lifecycle-support projects requiring an original SM 331 module. The product helps industrial users maintain stable process-data acquisition and consistent control-system operation.
6ES7331-7KF02-0AB0 is used to connect analog field signals to SIMATIC S7-300 automation systems in manufacturing lines, machine control, water treatment, energy systems, building services, and general process monitoring. Its selectable measurement modes allow one module to acquire signals from voltage and current transmitters, thermocouples, resistance sensors, and resistance thermometers.
In retrofit and maintenance projects, 6ES7331-7KF02-0AB0 is suitable for replacing the same Siemens SM 331 article number in an existing S7-300 or ET 200M configuration. It supports applications that require reliable analog signal acquisition, diagnostics, alarm handling, and configurable channel groups while preserving the established SIMATIC system design.
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