Overview
Suffix Breakdown & Model Matrix
The supplied documentation identifies ANB10D-445/CU2T/NDEL as a fixed ordering model. No official suffix-by-suffix decoding is provided in the available manufacturer information; therefore, no suffix interpretation is included.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ANB10D-445/CU2T/NDEL |
| Brand | Yokogawa Electric Corporation |
| Origin | Japan |
| Product Type | ESB Bus Node Unit |
| Control System | CENTUM VP |
| Communication Interface | ESB bus |
| Primary Function | Interface between field I/O modules and FCU; supplies power to I/O modules |
| Compatible Coupler Module | EC401 or EC402 ESB Bus Coupler Module |
| FCU Installation Requirement | EC401 or EC402 installed in Slot 7; Slot 8 required for redundant configuration and left empty for single configuration |
| Supported Power Supply | 100 – 120 VAC, 50/60 Hz; 220 – 240 VAC, 50/60 Hz; 24 VDC (specified by suffix code) |
| Power Consumption | 200 VA / 120 W (100 – 120 VAC); 230 VA / 120 W (220 – 240 VAC); 5.5 A (24 VDC) |
| Weight | 10 kg (including eight I/O modules) |
Channel-to-Channel Signal Integrity
Within a CENTUM VP distributed control architecture, analog signal acquisition depends on controlled electrical isolation between field interfaces. The ESB Bus Node Unit exchanges field I/O data with the FCU over the ESB bus while distributing operating power to connected I/O modules. Channel-to-channel isolation characteristics depend on the installed I/O modules rather than the node unit itself, and should be verified according to the specifications of each installed module.
Frequently Asked Questions
Q: Can the ANB10D-445/CU2T/NDEL operate without an ESB Bus Coupler Module?
A: No. Communication with the FCU requires an EC401 or EC402 ESB Bus Coupler Module installed in the designated FCU slot.
Q: Which FCU slots are used for ESB Bus Coupler Modules?
A: The available documentation specifies installation in Slot 7 and Slot 8. For a single configuration, the coupler is installed in Slot 7 and Slot 8 remains empty.
Q: Does the node unit include the field I/O modules?
A: The documented weight includes eight I/O modules, but the node unit itself is a separate hardware platform that interfaces and powers compatible I/O modules.
Field Installation Guidelines
- Verify that the selected power supply matches the ordered suffix configuration before energizing the unit.
- Install the appropriate EC401 or EC402 ESB Bus Coupler Module in the required FCU slot before connecting the ESB bus.
- Secure all module connectors before applying power to prevent intermittent communication.
- Route ESB bus cables separately from high-voltage power wiring to reduce conducted electrical noise.
- Connect cable shields according to the control system grounding practice to minimize electromagnetic interference.
- Confirm that all installed I/O modules are supported by the corresponding CENTUM VP hardware configuration before system commissioning.
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