6ES7331-1KF02-0AB0 Siemens Simatic S7-300 Analog I/O Module

Product parameters

Module type: Analog Input Module (AI module)

Number of input channels: 8 single-ended inputs / 4 differential inputs

Input signal type: Voltage signal: 0-10V, ±10V; Current signal: 0-20mA, 4-20mA (external power supply support required)

Resolution: 12 bits

Conversion time: The typical conversion time for each channel is 250μs, and the total full scan time for 8 channels is ≤2ms

Input impedance: Voltage input: ≥100kΩ; Current input: ≤250Ω

Accuracy grade: When the ambient temperature is 0-60℃, the error is ≤±0.2% of the full scale (FS). Under a standard environment of 25℃, the error is ≤± 0.1%FS

Power supply: Powered by the backplane bus of the S7-300 PLC

Isolation feature: Electrical isolation between the channel and the backplane bus; There is no isolation between the channels

Operating temperature: 0-60℃

Storage temperature: -40-85℃

Relative humidity: 5-95%

Protection grade: IP20

Compatible system: Compatible with all series of S7-300 cpus, supports STEP 7 V5.x and above software programming

Function

Standard analog signal acquisition: Directly connect to common voltage and current type sensors/transmitters in industrial sites, converting continuously changing physical quantities into digital signals recognizable by PLCS.

Flexible input mode switching: Select single-ended input or differential input through the module hardware jumper to adapt to different on-site working conditions.

Stable and reliable signal conversion: The 12-bit resolution meets the precision requirements of conventional industrial control, and the conversion speed of 250μs/channel can quickly respond to changes in on-site parameters, ensuring the real-time performance of control logic.

Electrical isolation and protection: The isolation design between the channel and the bus effectively guards against electromagnetic interference (EMI), surge voltage and ground loop interference in industrial sites, protecting the PLC host and modules and reducing the probability of system failures.

Seamless integration with Siemens ecosystem: No additional driver required, plug and play, parameters such as signal type and measurement range can be quickly configured through STEP 7 software, and work in coordination with S7-300 series PLCS and other expansion modules.

Intuitive status diagnosis: The module is equipped with power (PWR) and operation (RUN) LED indicator lights, which can quickly determine the power supply status of the module and whether it is working normally, facilitating on-site fault detection.

Application scenarios

Manufacturing production lines: Scenarios such as mechanical processing, electronic assembly, and automotive parts production, for instance, collecting the temperature of machine tool spindles, the running speed of conveyor belts, and the material pressure on assembly lines, etc., to achieve monitoring of equipment operation status and control of production accuracy.

Process industry: Monitoring of production processes in industries such as chemical engineering, food and beverage, and pharmaceuticals, such as collecting parameters like the pressure of reaction vessels, the liquid level of storage tanks (signals from liquid level transmitters), and the flow rate of material mixing, in conjunction with PLC to achieve closed-loop regulation of the production process.

Energy and power auxiliary systems: Monitoring of auxiliary equipment in power plants and substations, such as collecting water temperature of cooling systems, outlet pressure of oil pumps, wind pressure of fans, etc., to ensure the stable operation of energy equipment.

In the building materials and metallurgy industry: Process parameter collection for cement production lines and steel mills, such as collecting kiln temperature, material level (material level sensor signal), dust removal system pressure, etc., to support the automatic control of production processes.

Water treatment and environmental protection industry: Monitoring of operation parameters in waterworks and sewage treatment plants, such as collecting pH value of sewage, liquid level of water tanks, working pressure of water pumps, etc., to achieve automatic control and safety monitoring of the water treatment process.

Small-scale automated equipment: Signal acquisition for small-scale production lines and single-machine automated equipment, suitable for control scenarios with low cost and conventional precision requirements, with outstanding cost performance.

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