Yokogawa ABC11S CENTUM VP CENTUM CS Bus Converter Unit

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Yokogawa ABC11S Bus Converter Unit Configured for real-time protocol conversion in Yokogawa CENTUM VP / CS DCS systems, the Yokogawa...

SKU: ABC11S

Manufacturer: Yokogawa
Product No.: ABC11S
Product Type: Bus Converter Units
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 420g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ABC11S Bus Converter Unit

Configured for real-time protocol conversion in Yokogawa CENTUM VP / CS DCS systems, the Yokogawa ABC11S (ABC11S Bus Converter Unit) provides direct physical/electrical execution. The hardware interface converts data between legacy VL, HF, and RL buses and modern Vnet/IP networks, sustaining deterministic transmission speeds from 10 Mbps up to 100 Mbps.

Hardware Specifications

Parameter	Specification
Model	ABC11S
Brand	Yokogawa
Origin	Japan
Weight	0.42-1.5 kg (depending on variant)
Dimensions	35 mm x 150 mm x 180 mm
Operating Temp	-10 to +55 deg C
Power Consumption	12 W typical
Communication Protocols	ESB bus <-> Vnet/IP; supports legacy VL, HF, RL buses
Transmission Speed	10 Mbps (ESB), 100 Mbps (Vnet/IP)
Interfaces	2 x optical fiber ports, 2 x coaxial ports (N-type/BNC)
Transmission Distance	Up to 500 m (coaxial), 2 km (optical)
Power Supply	24 VDC nominal (+/-10%)
Isolation	1500 V galvanic isolation between bus and power

Process Control & DCS Instrumentation Integration

The ABC11S utilizes a dedicated 4-20 mA HART loop protocol layer alongside foundational FOUNDATION Fieldbus / Profibus PA connectivity parameters to establish steady communication lines. The design incorporates 1500 V channel-to-channel isolation parameters that separate internal power loops from communication buses, blocking transient voltage spikes and suppressing ground loops. Real-time error checking algorithms handle incoming packet validation, triggering automatic retransmission protocols for corrupted frames. The network interface incorporates dual bus paths with automatic failover routines, maintaining continuous data packet routing across mixed-generation distributed control networks without dropping primary process signals.

Frequently Asked Questions

Q: How does the ABC11S handle configuration data protection during complete 24 VDC power blackouts?

A: The hardware contains internal non-volatile memory chips that write configuration profiles directly to persistent storage. This architecture maintains all structural network parameters and project links during power drops without requiring an external battery backup system.

Q: What mechanisms resolve communication path failures between the optical fiber and coaxial port pathways?

A: The converter architecture implements a dual bus topology featuring embedded automatic failover logic. The system watchdog monitors line continuity across both media interfaces, executing an automatic switchover to the backup signal path within one bus cycle if attenuation thresholds are breached.

Q: What configuration software packages are required to define the network bridging rules for this unit?

A: System engineers must employ the LHS4450 Multiple Project Connection Package along with the LHS5450 Builder utility to properly map the database tables and address spaces between legacy CENTUM CS and modern CENTUM VP nodes.

Field Installation Guidelines

Mount the ABC11S converter unit securely within the designated space-constrained industrial cabinet utilizing the integrated rack-mounting brackets. Maintain rigid structural positioning to prevent mechanical strain from distorting the electrical contact surfaces at the physical interface card edge.

Route optical fiber lines and coaxial cables through dedicated communication wire trays, keeping them isolated from high-voltage AC electrical distribution lines to eliminate industrial RFI/EMI coupling. Connect the optical lines using clean fiber tips, and torque all N-type/BNC coaxial connectors to operational standard specs to minimize insertion loss. Run a low-impedance copper conductor from the chassis ground terminal directly to the verified plant instrument earth ground grid. Ensure ambient air temperatures inside the cabinet assembly stay between -10 deg C and +55 deg C to prevent early thermal degradation of the optical transceivers.

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