B&R X67AI1323 X67 Series 4-Channel Analog Input Module

Product Overview

The X67AI1323 (X67AI1323) is a ruggedized analog input module within the B&R X67 system, designed for high-precision data acquisition in decentralized automation environments. Featuring 4 analog inputs, this module is optimized for standard industrial current signals, supporting both 0 to 20 mA and 4 to 20 mA ranges. Engineered to eliminate the need for protective control cabinets (IP67 rated), it is ideal for process monitoring in outdoor or wash-down environments such as wastewater treatment, oil and gas exploration, and food production. The X67AI1323 ensures superior signal integrity and system resilience with integrated short-circuit protection and a wide operating temperature range, facilitating real-time feedback from pressure, flow, and level sensors located directly at the field level.

Technical Configuration

The X67AI1323 architecture focuses on robust power management and sensor protection. It operates on a nominal 24 VDC supply with a broad permissible voltage range of 18 to 30 VDC. A standout feature is the integrated sensor power supply capable of delivering up to 12 W, which simplifies field wiring by powering the connected sensors directly through the module. The circuitry includes an intelligent short-circuit protection mechanism that limits the summation current to 0.5 A. In a fault condition at 500 mA, the module manages a controlled voltage drop (max. 2 VDC), ensuring the rest of the I/O segment remains operational while protecting the specific faulted channel.

Technical Specifications

Technical FAQs

Does the X67AI1323 support 2-wire or 3-wire sensor configurations?

The module is designed to support various current loop configurations. With its integrated sensor power supply providing up to 12 W, it is particularly efficient for powering 2-wire transmitters where the signal and power share the same wire pair.

What happens if a sensor cable is shorted in the field?

The module is fully short-circuit proof. If a short circuit occurs at 500 mA, the internal protection logic induces a maximum voltage drop of 2 VDC to stabilize the system. The integrated diagnostics will report a fault state to the controller, while the hardware prevents damage to the module's internal traces.

How does the module perform in extreme cold environments?

The X67AI1323 is rated for operation down to -25 deg C and storage down to -40 deg C. This makes it suitable for unheated industrial facilities or outdoor enclosures in temperate and sub-arctic climates, provided it is mounted in accordance with B&R installation guidelines.

Engineering & Installation Guide

• Current Loop Precision: When using the 4 to 20 mA range, ensure that the sensor's maximum load impedance is compatible with the module's output voltage (supply voltage minus the protection drop). For high-precision requirements, utilize shielded M12 cables to minimize EMI interference on the analog signal, grounding the shield only at the module's designated functional earth point.

• Thermal Management of Sensor Power: While the module can supply up to 12 W to external sensors, this contributes to the internal heat dissipation. If the module is operating at the upper limit of its temperature range (60 deg C), ensure there is adequate airflow around the housing to prevent thermal throttling of the measurement accuracy.

• M12 Connection Security: To maintain the IP67 rating and ensure consistent electrical contact for sensitive analog signals, use a calibrated torque wrench to tighten the M12 connectors to 0.6 Nm. Insufficient torque can lead to moisture ingress, causing "drifting" analog values or ground loops.