XBF-AD04C

Description

4-channel analog input module for the XGB family, selectable per channel between voltage and current inputs. 14-bit A/D conversion, external 24 VDC supply required, intended for standard process signals like 0–10 V or 4–20 mA.

The Polar Energy Assessment:

The AD04C is a compact 4-channel voltage/current analog input card, providing 14-bit resolution and selectable input ranges including 0–10 V, 0–5 V, 1–5 V, 0–20 mA and 4–20 mA, with per-channel wiring and filtering recommendations in the vendor manual. It requires an external 24 VDC expansion supply, uses standard XGB terminal blocks, and is targeted at process monitoring and basic control loops where mid-range resolution and robust industrial wiring practice are needed.

Pros

• Per-channel voltage/current selection gives wiring flexibility for mixed sensor sets.
• 14-bit conversion yields good resolution for most process tasks.
• Small, XGB-form factor module, easy to add to existing PLC racks.

Limitations

• External 24 VDC supply is required, so include that in the BOM.
• Not a high-speed data logger, conversion and filtering are aimed at process control rather than fast sampling.

Typical use cases

• Reading 4–20 mA transmitters, 0–10 V sensors, and medium-accuracy process loops in OEM machines and small PLC-based systems.