ANB10D-426/CU2N/NDEL Yokogawa ESB Bus Node Unit | New Original Stock
Manufacturer: Yokogawa
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Part Number: ANB10D-426/CU2N/NDEL
Condition：New with Original Package
Product Type: Distributed Control System Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Yokogawa ANB10D-426/CU2N/NDEL ESB Bus Node Units
The Yokogawa ANB10D-426/CU2N/NDEL, also cataloged as the ANB10D Node Unit for Dual-Resistant ESB Bus, operates as a dedicated hardware component for connecting multiple I/O modules to the Field Control Unit (FCU) via the high-speed synchronous ESB bus within Yokogawa CENTUM VP distributed control system (DCS) platforms.
Suffix Breakdown & Model Matrix
| Code Element | Selection | Description |
|---|---|---|
| Base Model | ANB10D | Node Unit for Dual-Resistant ESB Bus |
| Suffix -4 | -4 | Dual-redundant power supply configuration |
| Suffix 2 | 2 | 220 to 240 V AC power supply input capability |
| Suffix 6 | 6 | Integrated ISA Standard G3 conformal coating and extended temperature (-20 to 70 deg C) option with no explosion protection |
| Option /CU2N | /CU2N | Connector Unit for ESB Bus [part No.: S9562FA (2 pieces)] |
| Option /NDEL | /NDEL | Software License for Node Expansion functionality |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ANB10D-426/CU2N/NDEL |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 10 kg |
| Dimensions | Standard 19-inch rack-mount footprint |
| Operating Temp | -20 to 70 deg C |
| Storage Temp | -25 to 70 deg C |
| Relative Humidity | 10% to 95% non-condensing |
| Power Consumption | 230 VA (apparent), 120 W (active) |
| Input Voltage | 220 to 240 V AC at 50/60 Hz frequency limits |
| Module Capacity | Maximum accommodation of up to 8 FIO modules |
| System Capacity | Maximum limit of 13 units per AFV30 / AFV40 FCU controller |
| Bus Interface | Dual-redundant synchronous ESB bus line topology |
Process Control & Channel-to-Channel Isolation
The node unit architecture integrates rigid internal isolation barriers to isolate the internal logic circuitry from high-voltage spikes originating on external loops. Communication between the interface card backplane and the Field Control Unit uses deterministic ESB bus signaling, requiring absolute protection against common-mode noise. Channel-to-channel isolation parameters ensure that field-side transients generated on adjacent analog input channels (such as 4-20 mA HART loop protocol connections) do not cascade through the local backplane. This protects the asynchronous processing clocks from clock jitter and preserves data integrity across the high-speed synchronous data stream.
Frequently Asked Questions
Q: How does the power supply module transition execute during an internal component failure?
A: The dual-redundant power supply architecture operates in a parallel load-sharing configuration. If one power module fails or loses input line voltage, the total electrical load shifts to the secondary supply within less than 2 microseconds, preventing disruptions to the connected FIO modules.
Q: Is hot-swapping of the /CU2N connector unit permitted during active control operations?
A: No. Unplugging the /CU2N connector unit breaks physical continuity of the ESB bus lines, which causes an immediate drop in communication with the Field Control Unit and forces the downstream I/O modules into their pre-configured fail-safe states.
Q: What are the restrictions regarding the maximum distance of the ESB bus connections using the /CU2N connector?
A: The /CU2N connector assembly is intended for local cabinet or close-coupled daisy-chain configurations using standard copper bus cables. Total cumulative bus length must not exceed the specified propagation delay limits of the synchronous interface protocol.
Field Installation Guidelines
- 19-Inch Rack Mechanical Fastening: Mount the unit firmly inside standard 19-inch electrical enclosures using four M5 retention screws with insulation washers. Ensure the enclosure framing is level to eliminate physical twisting across the node chassis backplane.
- ESB Bus Cable Termination: Connect the synchronous bus lines via the /CU2N connector assembly [part No.: S9562FA]. Ensure both locking thumb screws are fully hand-tightened to establish solid electrical contact and prevent loose connections from creating communication faults.
- Thermal Vent Clearances: Because this module is equipped with the suffix 6 extended temperature configuration (-20 to 70 deg C), maintain a minimum vertical clearance of 100 mm from high-heat generating sources such as large variable frequency drives or power distribution transformers within the same panel.