Product Overview
The Yokogawa ANS20 Node Interface Unit serves as a critical communication bridge in distributed control systems. This module connects field devices to the central controller with exceptional reliability. It supports high-speed data exchange across multiple network topologies. Industrial facilities rely on this unit for seamless process automation integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ANS20 |
| Dimensions | 130 mm × 40 mm × 100 mm (W × H × D) |
| Weight | 0.45 kg |
| Power Supply | 24 V DC ±10% |
| Power Consumption | 5 W typical |
| Communication Ports | 2 × RJ45 Ethernet, 1 × RS-485 |
| Node Capacity | Up to 32 nodes per interface |
| Data Buffer | 512 KB onboard memory |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
| Humidity Range | 10% to 90% RH (non-condensing) |
| MTBF | 1,200,000 hours |
| Status Indicators | 6 LED indicators (Power, Run, Error, TX, RX, Link) |
| Mounting | DIN rail or panel mount |
| Terminal Type | Removable spring-cage connectors |
| Wire Gauge | 0.2 mm² to 2.5 mm² |
| Certifications | CE, UL, RoHS |
Communication and Connectivity
The unit integrates two independent Ethernet ports for redundant network configurations. A dedicated RS-485 interface supports legacy fieldbus devices without additional converters. Each port handles error checking and collision detection automatically. The device stores up to 512 KB of data in its onboard buffer for temporary fault conditions.
Power and Environmental Considerations
This interface draws a nominal 5 W from a 24 V DC supply. It operates reliably across a wide temperature range from -10°C to +60°C. The unit tolerates humidity levels up to 90% non-condensing for harsh industrial environments. Its robust design achieves a mean time between failures exceeding 1.2 million hours.
Physical Design and Installation
The compact enclosure measures 130 mm wide by 40 mm high by 100 mm deep. Weighing only 0.45 kg, this unit suits tight control cabinet spaces. Spring-cage terminals accept wire gauges from 0.2 mm² to 2.5 mm². Users can mount the device on standard DIN rails or directly on panels.
Status Monitoring and Diagnostics
Six front-panel LEDs provide real-time operational status. The Power LED confirms supply voltage presence. Run and Error indicators show the communication health. TX, RX, and Link LEDs display active data transmission on each port. This visual feedback accelerates troubleshooting during system maintenance.
Compliance and Quality Standards
The ANS20 holds CE, UL, and RoHS certifications for global deployment. These approvals guarantee compliance with international safety and environmental regulations. The unit undergoes rigorous quality testing before shipment from the factory.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 130 × 40 × 100 mm |
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