6ES7288-3AR02-0AA0 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: 2 (supporting simultaneous acquisition by 2 thermocouples)

Supported thermocouple types: Covering common 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, the K type is -200 ℃ to 1300℃, and the J type is -200 ℃ to 1200℃

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

Thermocouple signal acquisition: Specifically adapted for millivolt-level thermocouple signals, it directly converts temperature signals into digital quantities recognizable by the CPU without the need for additional signal conditioning circuits.

Cold end compensation: The built-in temperature sensor automatically compensates for the temperature drift at the cold end of the thermocouple, avoiding the impact of environmental temperature changes on measurement accuracy, and there is no need to connect external compensation wires.

Multi-type compatibility: A single module supports 7 common types of thermocouples. They can be switched through software configuration without the need to replace hardware, meeting the measurement requirements of different temperature ranges.

Anti-interference and diagnosis: Built-in EMC protection circuit to suppress electromagnetic interference in industrial sites; It supports disconnection detection function. When the sensor malfunctions, it will feed back an alarm signal to the CPU, facilitating fault detection.

Application scenarios

Metallurgy and Heat treatment: In steel, non-ferrous metal smelting or parts heat treatment furnaces, collect the temperature inside the furnace or on the surface of the workpiece, and monitor whether the heating process conforms to the process curve.

Chemical engineering and pharmaceuticals: In equipment such as reaction vessels and distillation columns, measure the temperature of the high-temperature reaction environment to ensure that chemical reactions take place within the set temperature range and guarantee product quality.

Food and building Materials: In food baking production lines, glass or ceramic firing kilns, the temperature of the furnace chamber is collected in real time, and the output of heating equipment is controlled to achieve standardized production.

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