imo xbf-ah04a xgb plc expansion module

Why Choose the IMO XBF-AH04A Analogue I/O Module?

The IMO XBF-AH04A is a versatile combined analogue input and output expansion module designed for IMO XGB programmable logic controller systems. It provides 2 analogue input channels and 2 analogue output channels, allowing a PLC to both monitor analogue process signals and generate analogue control signals from a single compact module.

As part of the IMO XGB analogue expansion range, the XBF-AH04A supports 1–5 V DC, 0–5 V DC, 0–10 V DC, 4–20 mA and 0–20 mA signals on both its input and output channels. Voltage or current operation is selected using the module's channel selection switches together with the corresponding PLC configuration.

The XBF-AH04A uses 12-bit binary conversion with a maximum resolution of 1/4000, accuracy of ±0.5% or better and a maximum conversion speed of 1 ms per channel. This combination makes it suitable for applications requiring compact bidirectional analogue signal processing for sensors, transmitters, drives, actuators and other industrial equipment.

Key Advantages

• Combined 2-channel analogue input and 2-channel analogue output functionality in one module.
• Supports both voltage and current signals for flexible industrial integration.
• Compatible with 1–5 V DC, 0–5 V DC and 0–10 V DC signals.
• Compatible with industry-standard 4–20 mA and 0–20 mA signals.
• 12-bit binary conversion with a maximum resolution of 1/4000.
• Fast maximum conversion speed of 1 ms per channel.
• Accuracy of ±0.5% or better for dependable analogue control and measurement.
• Input filtering and averaging functions help provide stable process measurements.

Key Features

• IMO XGB analogue I/O expansion module.
• 2 analogue input channels.
• 2 analogue output channels.
• Input voltage ranges of 1–5 V DC, 0–5 V DC and 0–10 V DC.
• Input current ranges of 4–20 mA and 0–20 mA.
• Output voltage ranges of 1–5 V DC, 0–5 V DC and 0–10 V DC.
• Output current ranges of 4–20 mA and 0–20 mA.
• 12-bit binary data for analogue input and output processing.
• Maximum resolution of 1/4000.
• Supports unsigned, signed, precise and percentile digital data formats.
• Input digital filtering and time, count and moving averaging functions.
• Disconnection detection for 1–5 V DC and 4–20 mA input signals.
• Photocoupler isolation between the I/O terminals and PLC power circuitry.
• 11-point terminal block for external connections.

Combined Analogue Measurement and Control for Industrial Automation

Combined analogue I/O modules allow a PLC to acquire continuously varying process signals while also generating analogue commands for external equipment. The IMO XBF-AH04A provides two input and two output channels in one module, making it suitable for closed-loop control applications where sensor feedback and analogue control outputs are required within the same automation system.

Its support for common 0–10 V DC and 4–20 mA signals enables integration with pressure, level and flow transmitters as well as variable speed drives, valve positioners and other analogue-controlled equipment. Configurable filtering and averaging functions can help stabilise measured signals, while the multiple analogue output ranges provide flexibility when interfacing with different field devices.

Typical Applications

• Industrial process measurement and control.
• Pressure, level and flow transmitter monitoring.
• Variable speed drive speed reference control.
• Proportional valve and actuator control.
• Factory automation and production equipment.
• Packaging and processing machinery.
• 0–10 V DC sensor and control signal integration.
• 4–20 mA process instrumentation.
• Closed-loop PLC control systems.
• Control panel and PLC analogue I/O expansion.