The YOKOGAWA AIP261-S1, also cataloged as the AIP261 Interface Expansion / Monitoring Module, operates as a dedicated hardware component for control bus interface expansion within CENTUM VP and CENTUM CS 3000 platforms. Installed directly into standard station chassis slots, the board manages high-speed data frame translation and console connectivity over deterministic Vnet/IP networks.
| Parameter | Specification |
|---|---|
| Model | AIP261-S1 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.1 kg |
| Dimensions | 2.5 cm x 12.7 cm x 14.0 cm |
| Operating Temp | 0 to 50 deg C |
| Power Consumption | Max 0.5 A (5 VDC) |
| Interface Bus | PCI Express (PCIe) |
| Data Link Speed | 1 Gbps / 100 Mbps (synchronous with Vnet/IP) |
| Isolation | Galvanic isolation against surges |
| Status Indicators | LED indicators (Link / Activity) |
| Redundancy | Supports dual-redundant Vnet/IP configuration |
| Mounting | Console enclosure (e.g., YAK211) / PCIe slot |
The card incorporates galvanic isolation logic to decouple internal station processing circuitry from external transmission lines, suppressing common-mode transients and ground potential variances. Operating in conjunction with the 4-20 mA HART loop protocol and digital Fieldbus infrastructures, the board preserves frame synchronization across dual-redundant Vnet/IP links. Deterministic low-latency buffer queues manage continuous telemetry streams without data throughput degradation or network packet collision.
Q: Does the module support dual-redundant network paths?
A: Yes, the interface card natively supports dual-redundant Vnet/IP configurations to maintain continuous data transmission if a primary network segment fails.
Q: What power rail draws current when inserted into the host station chassis?
A: The card draws power directly from the station backplane PCI Express slot, requiring a maximum current of 0.5 A on the 5 VDC power rail.
Q: What visual diagnostics are available directly on the module card edge?
A: Integrated front-face LED indicators provide hardware status signals confirming physical link connection and real-time bus activity.
Ensure host station power is fully turned off before inserting or removing the card from the PCIe slot to prevent electrical damage. Align the card edge connector with the motherboard slot guide rails and push firmly until the interface fully seats into the backplane receptacle. Secure the card retaining bracket with the mounting screw to ensure chassis ground continuity.
Connect high-speed Vnet/IP bus cables directly to the RJ-45 or fiber connectors, maintaining minimum cable bend radii to avoid physical signal degradation. Route network wiring through designated panel wire trunks separate from 230 VAC power feeders and motor control circuits by at least 300 mm. Ground all shielded communication cables at a single point on the main system grounding bar to eliminate ground loop currents.
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