Product Core Brief

• Model: YCB301-C800
• Brand: YOKOGAWA
• Series: YCB301 Bus Cable Series
• Core Function: 8-meter ESB bus cable for CENTUM VP DCS network communication
• Product Type: DCS Bus Cable
• Key Specs: ESB bus cable | 8 meters length | CENTUM VP compatible | V/ER/RIO network support
• Condition: New Original / New Surplus

Key Technical Specifications

• Product Type: ESB Bus Cable
• Compatible System: YOKOGAWA CENTUM VP DCS
• Network Support: V network, ER bus, ESB bus, RIO bus
• Cable Length: 8 meters (suffix -C800 indicates 8m length)
• Cable Type: Round industrial bus cable
• Application: DCS node-to-node communication, control station interconnection
• Connector Type: Yokogawa proprietary bus connector (matched to CENTUM VP hardware)
• Max. Transmission Distance: 10 m for copper ESB bus (without optical repeater)
• Operating Environment: Industrial control room / cabinet environment
• Origin: Japan

⚠️ The YCB301 series copper bus cable is limited to 10 m maximum transmission distance. For runs beyond 10 m, an optical ESB bus repeater module with fiber optic cable is required.

 

Product Introduction

The YOKOGAWA YCB301-C800 is an 8-meter ESB bus cable designed for CENTUM VP distributed control system networks. It supports multiple CENTUM VP network types including V network, ER bus, ESB bus, and RIO bus, providing reliable data transmission between control stations, field control units, and communication nodes.

At 8 meters, this is the longest standard length in the YCB301 copper cable series and is typically used for inter-cabinet connections or longer routing distances within a control room. Because the maximum copper ESB bus distance is 10 m, the YCB301-C800 should only be used when the total run between nodes does not exceed this limit. This unit is supplied as new original or new surplus, depending on stock availability.

 

QA & Testing SOP

Each unit is inspected before dispatch:

• Visual inspection: Check cable jacket for cuts, abrasions, kinks, or heat damage. Inspect connector housings for cracks or deformation.
• Connector inspection: Verify connector pins are straight, clean, and free of oxidation. Check locking mechanism integrity.
• Model verification: Confirm YOKOGAWA branding, model code YCB301-C800, and length marking on the cable or packaging.
• Continuity test: Verify pin-to-pin continuity and absence of short circuits across all conductors.
• Insulation test: Check insulation resistance between conductors to confirm no internal damage.
• Packaging: Packed with protective wrapping to prevent connector damage during transit.

 

Installation Pitfalls & Guide

❗ Do not exceed the 10 m copper bus limit. The YCB301-C800 is 8 m long. Ensure the total run between nodes, including any patch cables, does not exceed 10 m. For longer distances, use an optical ESB bus repeater with fiber optic cable.

❗ Do not substitute with generic cables. CENTUM VP bus cables use proprietary connectors and pinouts. Standard Ethernet or serial cables are not compatible.

❗ Avoid sharp bends and excessive tension. Bus cables should maintain a minimum bend radius to prevent internal conductor damage.

❗ Power down or follow hot-swap procedures. Depending on the network segment, replacing a bus cable may require taking the node offline. Follow site DCS maintenance procedures.

Replacement steps:

1. Pre-install: Record the existing cable routing, connector orientation, and node positions. Photograph the connections before removal.
2. Removal: Release connector latches and withdraw the cable gently. Do not pull on the cable body.
3. Install: Route the new cable along the same path, connect to the correct ports, and verify latch engagement.
4. Commissioning: Power up the nodes and confirm network communication status via CENTUM VP diagnostics.

 

Technical FAQ

Is pricing flexible for multiple units? Yes. Price depends on condition, quantity, and lead time. New original and new surplus stock are quoted separately. Send your quantity and we can provide a project-level quote.

What warranty is included? Standard warranty is 12 months from shipment for functional defects. This covers pre-shipment or manufacturing failures, not damage from incorrect installation, physical abuse, or environmental misuse.

What other lengths are available in the YCB301 series? The YCB301 series includes: -C020 (20 cm), -C100 (1 m), -C200 (2 m), -C300 (3 m), -C400 (4 m), and -C800 (8 m).

Can YCB301-C800 be used for all CENTUM VP networks? Yes. The YCB301 series supports V network, ER bus, ESB bus, and RIO bus connections within CENTUM VP systems.

What if my cable run exceeds 10 m? For distances beyond 10 m, you need an optical ESB bus repeater module (such as ANT401/ANT502/ANT411/ANT512) with single-mode fiber optic cable. The copper YCB301 series cannot exceed 10 m.

What information do you need to confirm compatibility? A photo of the existing cable label, the connected node models, and the required cable length are the most helpful. If available, share the cabinet wiring diagram or network topology.