PLCs, Power Supplies & Others

Overview of the Yokogawa SB401-10-2 Bus Interface Module

The SB401-10-2 operates as a bus interface module within Yokogawa’s distributed control platforms. This unit connects I/O nodes to the main system bus for continuous data exchange. Engineers install it in process plants that demand stable, high-speed communication links.

Key Technical Specifications of the SB401-10-2

The SB401-10-2 combines a rugged housing with a dedicated bus connector. Below you will find the core parameters that define this module’s performance envelope.

Physical Design and Interface Details

The SB401-10-2 adopts a compact footprint that fits standard Yokogawa I/O racks. Its dimensions measure 130 mm in length, 100 mm in width, and 25 mm in depth. Moreover, the module weighs roughly 270 grams, which simplifies rack installation and field replacement. Two bus ports deliver redundancy for critical communication paths.

Performance and Communication Capabilities

This module sustains a data transfer rate of 10 Mbps across dual-redundant bus links. Bus-to-logic isolation shields internal circuitry from electrical noise, therefore protecting sensitive components. Additionally, the second port maintains communication whenever the primary path fails. Consequently, the unit suits high-availability process control architectures.

Power and Environmental Considerations

The SB401-10-2 operates on a 24 V DC nominal power supply. Power consumption remains approximately 4 W during normal operation. The operating temperature range spans 0°C to 55°C for industrial environments. Storage temperature extends from -20°C to 70°C. Furthermore, humidity tolerance reaches 95% RH without condensation.

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