NEW 6ES7231-5QD32-0XB0

Model and Series Identification: This module, designated 6ES7231-5QD32-0XB0, is part of the SM 1231 family of analog input modules for the SIMATIC S7-1200 PLC system, categorized as AI 8xTC. It is engineered to expand the thermocouple-based temperature measurement capabilities of S7-1200 controllers.

Function: It converts millivolt signals from thermocouples into digital values interpretable by the S7-1200 CPU, enabling accurate temperature monitoring in industrial processes. This makes it suitable for applications such as high-temperature manufacturing, furnace control, and thermal process monitoring.

Input Specifications: Equipped with 8 analog input channels, each compatible with various thermocouple types including J, K, T, E, N, S, R, and B (configurable via software). The module features built-in cold junction compensation to ensure measurement accuracy, with typical accuracy ranging from ±0.5°C to ±2.5°C depending on the thermocouple type and temperature range.

Electrical Characteristics: The maximum current drawn from the backplane bus (5V DC) is 130mA. It provides galvanic isolation (500V AC for 1 minute) between channels and from the backplane bus, enhancing noise immunity in industrial environments with high electromagnetic interference.

Configuration and Diagnostics: Supports flexible parameterization via TIA Portal, allowing users to select thermocouple types, adjust filtering, enable/disable cold junction compensation, and configure fault detection. Diagnostic features include open-circuit detection for thermocouple wires and overvoltage protection, facilitating efficient troubleshooting.

Mechanical and Protection Features: Housed in a plastic enclosure with an IP20 protection rating, suitable for control cabinet installation. Its dimensions are 45mm (width) x 100mm (height) x 75mm (depth), with a weight of approximately 230g. A front connector is required for wiring.

Environmental Compliance: Operates in a temperature range of -20°C to 60°C, with storage and transportation temperatures from -40°C to 70°C. It complies with relevant industrial standards (including IEC 61131-2) and RoHS directives, ensuring compatibility with global markets and environmental safety.