6ES7331-7NF00-0AB0 Siemens Simatic S7-300 Analog I/O Module

Product parameters

Input channel number: 8 channels, and each channel can be independently configured.

Signal type: Supports various thermal resistors such as Pt100, Pt1000, Ni100, and Ni1000, and is compatible with 2/3/4-wire connections.

Resolution: 15 bits + symbol bits, measurement accuracy ±0.1% (full scale).

Sampling features: Single-channel sampling time of 50ms, multi-channel cyclic sampling, and support for fast sampling mode.

Measurement range: Depending on the type of thermal resistor, it covers -200 °C to +850°C (Pt100), -50°C to +600°C (Ni100), etc.

Power supply and power consumption: DC 24V power supply, typical power consumption 3W, maximum current consumption 150mA.

Isolation level: Electrical isolation between channels and between channels and the backplane bus, with an isolation voltage of 500V DC.

Environmental adaptability: Operating temperature 0°C to 60°C, storage temperature -25 °C to +65°C, protection grade IP20.

Product function

Thermal resistance signal acquisition: Accurately convert the resistance changes of thermal resistors into digital signals, meeting the requirements of industrial-grade temperature measurement.

Wire compatibility: Supports 2/3/4-wire connection methods, allowing for flexible selection based on on-site wiring requirements to reduce measurement errors.

Anti-interference design: Built-in filter circuit and electrical isolation structure to resist industrial electromagnetic interference and ensure signal stability.

Fault Diagnosis: It is equipped with channel-level diagnostic functions, capable of detecting faults such as broken wires and short circuits of thermal resistors. Problems can be quickly located through LED indicator lights and system diagnostic information.

Seamless compatibility: Perfectly compatible with S7-300 series cpus, supports parameter configuration of STEP 7 and TIA Portal software, and is easy to use.

Application scenarios

Industrial equipment temperature monitoring: Temperature measurement of key components such as motors, bearings, and gearboxes to prevent equipment overheating failures.

Process industry temperature control: Temperature monitoring of reaction vessels, pipelines and storage tanks in the chemical, petroleum and pharmaceutical industries, combined with PLC to achieve closed-loop control.

Energy and Power: Temperature collection of boilers, heat exchangers and steam turbines to provide data support for the assessment of equipment operation status.

Food and Cold Chain: Temperature monitoring in food processing equipment, cold storage, and cold chain transportation to meet industry compliance requirements.

Building materials and Metallurgy: Temperature measurement for cement kilns and glass production lines to ensure stable process parameters.

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