ADV151-E50 YOKOGAWA Digital Input Module

Yokogawa S9981DE-02 CENTUM VP Bus Interface Module

Yokogawa S9981DE-02 CENTUM VP Bus Interface Module

Availability: 99 left in stock

Yokogawa S9981DE-02 ESB/N-ESB Bus Interface Module The Yokogawa S9981DE-02, also cataloged as the ASS9981DE-02 Bus Interface Module, operates as a...

SKU: S9981DE-02

Manufacturer: Yokogawa
Product No.: S9981DE-02
Product Type: Bus Interface Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 630g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa S9981DE-02 ESB/N-ESB Bus Interface Module

The Yokogawa S9981DE-02, also cataloged as the ASS9981DE-02 Bus Interface Module, operates as a dedicated hardware component for high-speed signal distribution within CENTUM VP and ProSafe-RS system architectures.

Hardware Specifications

Parameter	Specification
Model	S9981DE-02
Brand	Yokogawa
Origin	USA
Weight	0.9 kg
Dimensions	44.5 cm x 13.3 cm x 2.5 cm
Operating Temp	-20 deg C to +60 deg C
Power Consumption	0.5 A at 24 VDC
Communication Method	ESB/N-ESB protocol with optical isolation
Topology	Star or daisy-chain
Transmission Distance	Up to 10 km (with Vnet/IP R1.03+)

Process Control & Connectivity

The S9981DE-02 provides critical galvanic and optical isolation between the bus and the internal system components, effectively suppressing electromagnetic interference in noisy environments. The module maintains signal integrity through dual redundant ESB/N-ESB communication channels, which facilitate seamless failover capabilities. By utilizing optical transmission, the unit enables significant distance extensions, supporting complex network topologies including star and daisy-chain configurations. The architecture ensures that process data packets maintain high-speed determinism, which is requisite for the integration of Distributed Control Systems (DCS) and Safety Instrumented Systems (SIS).

Frequently Asked Questions

Q: Does the S9981DE-02 support hot-swapping within the backplane?

A: No. Power must be isolated from the specific slot before removing or installing the module to prevent electrical arcing or damage to the backplane communication pins.

Q: How should the redundant bus channels be configured to ensure zero-loss communication?

A: Both channels must be connected to independent physical paths. Ensure that the Vnet/IP firmware version is R1.03 or higher to enable the maximum 10 km transmission distance support.

Field Installation Guidelines

Environmental Preparation: Ensure the installation environment is free from excessive vibration and remains within the specified temperature range of -20 deg C to +60 deg C.
Mounting: Secure the unit firmly into the designated backplane slot. Verify that the chassis ground is connected to a low-impedance earth point to maximize the effectiveness of the module's EMC shielding.
Wiring: Use shielded twisted-pair or fiber-optic cabling as required by the specific bus topology. Maintain physical separation between signal cables and high-voltage power lines to prevent induced noise.
Validation: After installation, utilize the system diagnostics to perform a bus status monitoring check. Confirm that the optical link indicators reflect stable connectivity across all redundant channels before finalizing the loop commissioning.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.