NEW 6ES7231-5PF32-0XB0

Model and Series Identification: This module, designated 6ES7231-5PF32-0XB0, 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 input capabilities of S7-1200 controllers, enabling high-density temperature monitoring in industrial environments.

Function: It converts the small voltage signals generated by thermocouples into digital values that the S7-1200 CPU can process, facilitating accurate temperature measurement and monitoring in various industrial processes. This makes it suitable for applications such as heat treatment, chemical processing, and industrial oven control.

Input Specifications: Equipped with 8 analog input channels, each compatible with a wide range of thermocouple types including J, K, T, E, N, S, R, and B (configurable via software). The module incorporates 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 operating temperature range.

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

Configuration and Diagnostics: Supports flexible parameterization through TIA Portal, allowing users to select thermocouple types, adjust signal filtering, enable/disable cold junction compensation, and configure fault detection parameters. Diagnostic capabilities include open-circuit detection for thermocouple wires and overvoltage protection, enabling quick identification of sensor or wiring issues.

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

Environmental Compliance: Operates reliably in a temperature range of -20°C to 60°C, with storage and transportation temperatures ranging 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 adherence to environmental regulations.