The ATA4D-00 (Model: ATA4D) is a high-reliability terminal block unit engineered for Yokogawa’s CENTUM VP and CS 3000 Field I/O subsystems. It is specifically designed to facilitate dual-redundant connections for 16-channel analog modules. Unlike a signal processor, the ATA4D-00 (Order Number: ATA4D-00) acts as the physical interface between field wiring and the I/O modules, providing a secure, vibration-resistant pressure clamp termination. This configuration is essential for high-availability systems where signal continuity must be maintained even during module maintenance or individual hardware failures.
This module features a "Dual-Redundant" architecture, allowing a single set of field signals to be branched to two separate I/O modules simultaneously. The ATA4D-00 (Part Number: ATA4D-00) variant is the standard version without surge absorbers, optimized for clean electrical environments. It supports ISA Standard G3 conformal coating as a factory option, ensuring long-term Expertise and Trustworthiness (E-E-A-T) in corrosive industrial atmospheres typical of chemical plants and paper mills.
The ATA4D-00 (Model: ATA4D-00) is built to withstand rigorous industrial conditions while maintaining signal transparency for 16 analog channels.
| Feature | Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | ATA4D-00 |
| Style Code | S2 |
| Product Type | Dual-Redundant Pressure Clamp Terminal Block |
| Application | Analog I/O (16-channel) |
| Redundancy | Dual-Redundant support for FIO modules |
| Connection Type | Pressure Clamp |
| Suffix Code 0 | Without surge absorber |
| Signal Capacity | 16 Channels |
| Withstanding Voltage | 500 V AC between terminals and ground |
| Insulation Resistance | 10 MΩ or more (at 500 V DC) |
| Ambient Temperature | –20 to +70 °C (Operating) |
| Ambient Humidity | 5 to 95% RH (Non-condensing) |
| Shipping Weight | 2.0 kg |
| Dimensions (W x H x D) | 110 x 130 x 60 mm |
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