The Yokogawa ANR10D-420, also cataloged as the ANR10D Bus Node Unit, operates as a dedicated hardware component for communication bridging between Field Control Units and remote I/O modules within Yokogawa CENTUM VP platforms.
| Suffix Code | Option | Description |
|---|---|---|
| ANR10D | Base Model | ESB Bus Node Unit |
| -4 | Power Supply | Dual-redundant power supply configuration |
| 2 | Line Voltage | 220 V AC to 240 V AC power supply input |
| 0 | Protection | Basic type with no explosion protection |
| Parameter | Specification |
|---|---|
| Model | ANR10D-420 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 2.0 kg (chassis base) to 10.0 kg (fully populated node) |
| Dimensions | 482.6 mm x 221.5 mm x 21.3 mm |
| Operating Temp | -20 deg C to 70 deg C |
| Power Consumption | 230 VA / 120 W |
| Input Voltage | 220 V AC to 240 V AC (50/60 Hz) |
| Output Power Supply | 5.1 V DC (7.8 A), 24 V DC (1.7 A) via power supply modules |
| System Compatibility | Yokogawa CENTUM VP and ProSafe-RS platforms |
| Module Capacity | Accommodates up to 8 I/O modules per node |
| Communication Bus | ER/ESB Bus interface (up to 14 remote nodes per FCU) |
| Data Refresh Cycle | Less than 1 s for standard field variables |
| Rack Mounting | Standard 19-inch rack mounting |
The ANR10D-420 node unit hosts remote I/O cards that process FOUNDATION Fieldbus, Profibus PA, and standard 4-20 mA HART loop protocol instruments. Internal backplane buses incorporate channel-to-channel and node-to-system galvanic isolation barriers to prevent field transient spikes from entering the controller core. Dual-redundant ER bus lines manage deterministic field communications, maintaining continuous scan cycles across connected input and output sub-networks.
Q: How does the dual-redundant power supply architecture behave during an AC line voltage interruption?
A: The chassis accommodates two independent power supply modules fed by separate 220-240 V AC lines. If one input source or power module fails, the secondary module carries the full internal 5.1 V DC and 24 V DC backplane load without interrupting I/O card operation.
Q: What mounting limitations exist for non-explosion-proof node variants?
A: Suffix code "0" designates a basic chassis without explosion protection. The hardware must reside inside a non-hazardous, environmental-controlled enclosure unless external explosion protection barriers are deployed.
Mount the ANR10D-420 unit into a standard 19-inch cabinet frame. Tighten all four front panel mounting screws securely to eliminate mechanical sag and protect internal connectors against vibration.
Connect both 220-240 V AC supply circuits to their designated power module terminals. Route primary and secondary ER Bus communication cables through separate wiring channels to avoid common-mode cable damage. Terminate the shield drain wire at a single enclosure protective earth ground bar.
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