NEW 6ES7231-4HD32-0XB0

Model and Series Identification: This module, designated 6ES7231-4HD32-0XB0, is part of the SM 1231 family of analog input modules for the SIMATIC S7-1200 PLC system, specifically categorized as AI 4xRTD. It is designed to expand the analog input capabilities of S7-1200 controllers, specializing in connecting resistance temperature detectors (RTDs).

Function: It converts temperature signals from RTD sensors into digital values that the S7-1200 CPU can process, enabling precise temperature monitoring in industrial environments. This makes it suitable for applications such as process temperature control, environmental monitoring, and equipment thermal management.

Input Specifications: Equipped with 4 analog input channels, each designed to connect to RTD sensors. Supported RTD types include Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni500, Ni1000, and Cu10 (depending on configuration). The input range and measurement accuracy vary by RTD type, with typical accuracy of ±0.1°C (for Pt100 at 0°C reference).

Electrical Characteristics: The module operates with a backplane bus current of max 130mA (5V DC). It features galvanic isolation between channels and from the backplane bus (500V AC for 1 minute), enhancing noise immunity and system safety.

Configuration and Diagnostics: Supports parameterization via TIA Portal, allowing users to configure RTD type, measurement range, filtering, and fault detection. Diagnostic functions include open-circuit detection for sensor wires, enabling quick troubleshooting of sensor connections.

Mechanical and Protection Features: Housed in a plastic enclosure with an IP20 protection rating, suitable for control cabinet installation. Dimensions are 45mm (width) x 100mm (height) x 75mm (depth), with a weight of approximately 200g. 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 industrial standards (including IEC 61131-2) and RoHS directives, ensuring compatibility with global markets and environmental safety.