Yokogawa RB301 RIO Bus Interface Master Card

PRODUCT INFORMATIOM

RB301 RIO Bus Interface Master Card

OVERVIEW

The Yokogawa DCS MODULE is an input/output module designed by Yokogawa for its CENTUM series of distributed control systems (DCS).

These modules offer high performance and a wide range of functions to meet the needs of a wide range of control systems. As an important part

of the CENTUM system, Yokogawa DCS MODULE plays a key role in the field of industrial automation and process control.

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FAQ

Q1: What is the Yokogawa RB301 used for?
According to the most consistent sources, it is a RIO Bus Interface Master Card for Yokogawa CENTUM VP/CS systems, connecting a host controller (PC or FCU) to Remote I/O devices over the proprietary RIO bus .

Q2: What are the exact specifications?
Official Yokogawa datasheet is not available in the search results. Third-party sources provide conflicting data (data rate of 10 Mbps vs. 1 Mbps, power of +5V vs. 24V, weight of 300g vs. 3kg). You must obtain the official Yokogawa datasheet for the exact order variant before making any decision.

Q3: Does the RB301 support redundancy?
Yes, it supports dual-redundant configurations, allowing installation in pairs within the FCU for continuous communication .

Q4: How many RIO devices can be connected?
The card supports up to 31 RIO field devices per one source . Verify this against official documentation.

Q5: What is the difference between RB301 and RB301/S2?
The S2 suffix indicates a style revision . Some sources describe the S2 variant as a PROFIBUS DP interface for STARDOM , which conflicts with the CENTUM RIO description. Confirm the exact variant and compatibility with Yokogawa.

Q6: Is the RB301 a PLC module or a RIO interface card?
Sources conflict. Some describe it as a "PLC Module" with a 32-bit CPU , while the majority describe it as a RIO Bus Interface Master Card (PCI card) . The RIO interface description is more consistent across credible sources. Verify with Yokogawa.

Q7: Is this a current or legacy product?
The RB301 is associated with CENTUM VP/CS systems, which are mature platforms. Confirm current product status and availability with Yokogawa or an authorized distributor.

Q8: Where can I get technical documentation?
Official Yokogawa documentation is essential. The third-party search results are unreliable and contradictory. Contact Yokogawa or an authorized distributor directly for the datasheet matching your exact order number.

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