6ES7288-3AR04-0AA0 Siemens SIMATIC S7-200 SMART Analog I/O Module

Product parameters

Supply voltage: DC 24V (Allowable fluctuation range: -15% to +20%)

Current consumption: Approximately 60mA for the module itself

Number of analog input channels: 4 (Independent channel design, supporting simultaneous acquisition by 4 thermocouples)

Supported thermocouple types: Covering 7 commonly used types, including J type, K type, T type, E type, R type, S type, and N type

Measurement range: Varies with the type of thermocouple, for example, K type is -200 ℃ to 1300℃, and S type is 0℃ to 1700℃

Resolution: 0.1℃ (When measuring within the range of -200 ℃ to 800℃

Accuracy: ±0.5℃ (for K-type thermocouples at ambient temperature of 25℃)

Cold end compensation: Built-in cold end compensation function, compensation range 0℃ to 60℃, accuracy ±1℃

Environmental adaptability: Operating temperature 0℃ to 55℃, storage temperature -40 ℃ to 70℃, protection grade IP20

Installation method: DIN rail installation in compliance with EN 50022 standard

Function

Multi-channel synchronous acquisition: Four independent channels can simultaneously collect thermocouple signals from different positions, meeting the requirements of simultaneous monitoring of multiple measurement points without the need for additional expansion modules.

Cold end automatic compensation: The built-in temperature sensor compensates for the cold end temperature drift of the thermocouple in real time, eliminating the need for external compensating wires or compensators, simplifying wiring and ensuring measurement accuracy.

Multi-type compatibility: The type of thermocouple corresponding to each channel (such as K-type, J-type) can be configured through software without the need to replace hardware, making it suitable for measurement scenarios with different temperature ranges.

Fault diagnosis and anti-interference: Supports thermocouple disconnection detection, and feeds back alarm signals to the CPU when the sensor malfunctions. It is equipped with an internal EMC protection circuit to suppress electromagnetic interference in industrial sites and ensure stable signals.

Application scenarios

Metallurgy and heat treatment: In multi-zone heating furnaces and continuous annealing production lines, the temperatures of four heating zones are simultaneously collected to monitor whether the temperatures of each zone meet the standards at the same time, ensuring the quality of heat treatment of workpieces.

Chemical Engineering and Energy: In large reaction vessels and boiler furnaces, high-temperature data from different areas are collected to prevent local overheating or uneven temperature, ensuring production safety and process stability.

Equipment manufacturing and testing: In the automotive engine test bench and the high-temperature aging chamber for electronic components, the temperatures of four test points are simultaneously monitored to verify the performance stability of the products in high-temperature environments.

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