Overview
Suffix Breakdown & Model Matrix
The model identifier ANR11D-420 S1 represents a configured Node Interface Unit assembly. The available data defines the power configuration and style code as follows:
| Code Segment | Specification |
|---|---|
| Model | ANR11D Node Interface Unit |
| Power Supply Configuration | Dual-redundant power supply configuration |
| Input Voltage Code | 220 VAC to 240 VAC power input |
| Protection Code | Standard type without dedicated explosion protection designation |
| Style Code | S1 design revision |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ANR11D-420 S1 |
| Brand | YOKOGAWA |
| Product Type | Node Interface Units |
| System Compatibility | CENTUM CS 3000 / CENTUM VP DCS |
| Communication Interface | ER Bus (Extension Remote Bus) interface |
| Main Function | Remote I/O node connection between I/O modules and Field Control Units |
| Power Supply Input | 220 VAC to 240 VAC, single phase |
| Frequency | 50 Hz / 60 Hz |
| Power Supply Modules | PW482 dual-redundant power modules |
| Output Voltage 1 | 5.1 VDC, up to 7.8 A |
| Output Voltage 2 | 24 VDC, up to 1.7 A |
| Maximum Apparent Power | Approximately 230 VA |
| Active Power Consumption | Approximately 120 W |
| Mounting Method | 19-inch rack mounting or panel mounting |
| Weight | Approximately 2.6 kg to 3.0 kg without I/O modules |
| Dimensions | Approximately 178 mm x 229 mm x 51 mm |
| Operating Temp | System cabinet dependent; refer to installed DCS environmental specifications |
| Origin | Japan |
DCS Process Signal Interface and Bus Connectivity
The ANR11D-420 S1 operates as an ER Bus node interface between distributed I/O modules and Yokogawa Field Control Units. It manages electrical communication paths, distributes module power, and provides the physical mounting structure for installed I/O assemblies.
In Yokogawa DCS architectures, the unit supports remote placement of analog and contact I/O modules. Therefore, field wiring distances can be extended while maintaining centralized controller communication through the ER Bus network.
For process instrumentation applications, Yokogawa systems commonly integrate signal technologies such as 4-20 mA HART loop protocol, FOUNDATION Fieldbus, and Profibus PA connectivity through compatible I/O modules. Additionally, installed I/O modules can provide channel-to-channel isolation and signal conditioning functions according to their specific module design.
Frequently Asked Questions
Q: Does the ANR11D-420 S1 provide direct field signal conversion?
A: No. The ANR11D-420 S1 functions as a Node Interface Unit and chassis interface. Installed I/O modules perform field signal acquisition or output conversion.
Q: Can the ANR11D-420 S1 operate with redundant power supplies?
A: Yes. The specified configuration supports dual-redundant power supply modules using PW482 units.
Q: What communication function does the ANR11D-420 S1 provide?
A: The unit provides ER Bus communication between remote I/O assemblies and Yokawa Field Control Units within compatible DCS configurations.
Field Installation Guidelines
- Install the ANR11D-420 S1 inside an approved Yokogawa system cabinet or rack structure.
- Verify AC power wiring before energizing the redundant power supply inputs.
- Maintain separation between AC power cables and low-level analog signal wiring to reduce electrical interference.
- Connect communication cables according to Yokogawa ER Bus installation requirements.
- Ensure protective grounding is completed through the cabinet grounding system before system startup.
- Check power module seating and connector engagement before installing I/O modules.
- Confirm cabinet ventilation conditions match the environmental requirements of the complete DCS installation.
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