Product Overview
The AAB842-H00 functions as an analog I/O module within Yokogawa process control systems. This unit handles both input acquisition and output signaling for continuous control loops. Consequently, engineers gain bidirectional analog interfacing from a single rack-mounted assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Analog I/O module |
| Input Channels | 8 channels |
| Output Channels | 8 channels |
| Input Signal | 4–20 mA DC |
| Output Signal | 4–20 mA DC |
| Power Supply | 24 V DC nominal |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Mounting Type | Rack mount |
| Weight | Approximately 0.6 kg |
| Dimensions | 140 mm × 100 mm × 30 mm |
| Housing Material | Molded plastic |
| Connection Type | Terminal block and backplane connector |
| Isolation | Galvanic isolation per channel |
| Accuracy | ±0.1% of full scale |
Construction and Materials
The module uses a molded plastic housing, which keeps the unit lightweight and durable. Meanwhile, terminal blocks accept standard field wiring without specialized tools. The rack mount design fits Yokogawa chassis, so replacements require minimal downtime.
Interface and System Compatibility
This I/O module integrates with Yokogawa control systems and related I/O racks. Additionally, galvanic isolation separates channels to prevent ground loops. Therefore, users maintain signal accuracy even in electrically noisy plant environments.
Installation Guidelines
Mount the unit within a compatible rack and verify seating before power-up. Furthermore, route analog wiring away from high-voltage cables to reduce interference. Correct grounding practice improves measurement stability, so follow plant standards carefully.
Details
| Weight | 0.35 kg |
|---|---|
| Dimensions | 120 × 52 × 125 mm |
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