Allen-Bradley 2085-TC4 Micro870 series Plug-in PLC

Allen-Bradley 2085-TC4 is a thermocouple input module in the Micro870 series. Here is a detailed introduction:

Basic information

Product type: It is an expansion I/O module of the Micro870 series, used for temperature measurement applications, and can connect thermocouple sensors for temperature detection.

Number of channels: It provides 4 independent thermocouple input channels, and can connect multiple thermocouples at the same time to achieve multi-point temperature monitoring.

Electrical parameters

Power supply: It obtains power from the I/O expansion bus of the Micro870 controller. The maximum bus current is 120mA at 5V DC and 60mA at 24V DC.

Power consumption: The total power consumption is about 2W during operation.

Functional characteristics

Supported thermocouple types: It supports a variety of common thermocouple types, such as J-type, K-type, T-type, E-type, R-type, S-type and B-type, which can meet application scenarios with different measurement ranges and accuracy requirements.

Measuring range: Different thermocouple types have different measuring ranges. For example, the measuring range of K-type thermocouples is usually - 200°C to + 1372°C, which can meet a wide range of industrial temperature measurement needs.

Accuracy: It has high measurement accuracy, generally between ±0.5°C and ±1°C, and the specific accuracy depends on the thermocouple type and measurement conditions.

Resolution: 14 bits (13 data bits and 1 sign bit), the data format is left-aligned, 16-bit complement, which can accurately reflect temperature changes.

Cold junction compensation: It has automatic cold junction compensation function, which can improve the accuracy of measurement and eliminate the influence of ambient temperature on thermocouple measurement.

Terminal block: Each module contains two 12-pin removable terminal blocks (RTB) for easy wiring and maintenance.

Status indication: There is 1 green health indicator and 4 red error indicators to indicate the working status and fault information of the module, such as thermocouple open circuit, short circuit or out of range errors.

Physical characteristics

Dimensions: 44.5mm×90mm×87mm.

Weight: about 220g.

Installation requirements

Installation method: It can be installed on a DIN rail or on a panel.

Installation environment: Electrostatic discharge needs to be avoided. Sufficient space should be left around the installation to ensure good air circulation and prevent overheating. At the same time, the impact of electromagnetic interference on the module should be minimized and kept away from strong electromagnetic field sources.

This module can be used with the Micro870 controller and supports up to 4 2085 expansion I/O modules, helping users to flexibly configure the system according to actual needs and increase the number of temperature measurement points. It is widely used in industrial automation scenarios that require precise temperature monitoring and control, such as chemical, electric power, metallurgy, food processing, pharmaceutical and other industries.