Excellent PLC
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Product Overview
The Yokogawa SB401-50 is an ESB Bus Interface Slave Module used within the FIO system architecture to enable high-speed communication between field I/O modules and the Field Control Unit (FCU). It forms an essential part of node units like ANB10S or ANB10D, supporting reliable control network functions and redundancy for industrial automation systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | SB401-50 |
| Function | ESB Bus Interface Slave Module |
| Application | Communication between I/O modules and FCU |
| Redundancy | Supported (dual-redundant option) |
| Mounting | 19-inch Rack Mounting |
| Power Supply | 24 V DC / 100–120 V AC / 220–240 V AC |
| Max. Power Consumption | 120 W |
| Weight | 0.45 kg |
| Dimensions (W x H x D) | 130 x 142.5 x 32.8 mm |
| I/O Module Capacity | Max. 8 modules |
| Ambient Temperature | –20°C to +70°C (with G3 option) |
| Bus Compatibility | ESB Bus (via EC401/EC402 modules) |
Applications
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Distributed Control Systems (DCS)
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Oil & Gas and Chemical Plants
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Power Generation Facilities
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Pulp and Paper Industries
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Pharmaceutical Manufacturing
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Water and Wastewater Treatment Plants
Product Advantages
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High-speed Communication: Ensures efficient and reliable transmission between I/O and controllers.
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Redundancy Support: Offers dual-redundant capability for enhanced system reliability.
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Modular Design: Enables scalable I/O expansion up to 8 modules.
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Wide Compatibility: Works with various Yokogawa FCUs via EC401/EC402 couplers.
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Industrial Ruggedness: Supports harsh environments with G3 and wide temperature options.
FAQ
Q1: What is the main function of the SB401-50 module?
A1: It serves as the slave interface for ESB bus communication between I/O modules and FCUs.
Q2: Is the SB401-50 suitable for dual-redundant systems?
A2: Yes, it supports dual-redundant configurations when used with two SB401 modules.
Q3: Can SB401-50 be mounted on any rack?
A3: No, it is specifically designed for 19-inch rack mounting.
Q4: What is the maximum number of I/O modules that can be used with SB401-50?
A4: Up to 8 I/O modules can be used in a node unit.
Q5: Does SB401-50 support power supply redundancy?
A5: Yes, it supports both single and dual power supply configurations.
Q6: Is explosion protection available for this module?
A6: Explosion-proof versions are available with specific suffix options.
Q7: What is the power consumption of SB401-50?
A7: Maximum power consumption is 120 W, depending on voltage input.
Q8: What kind of environments is SB401-50 suitable for?
A8: With the G3 option, it can operate in temperatures from –20°C to +70°C.
Q9: Can SB401-50 be used in existing CENTUM VP R5 systems?
A9: Yes, it is backward compatible with CENTUM VP R5 or later systems.
Q10: Is any special part required for installation?
A10: Yes, installation may require EC401/EC402 modules and insulating partitions if barriers are used.
Related Models (Same Series or Compatible)
| Model | Description | Power Supply | I/O Capacity | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| ANB10S | Node Unit for Single ESB Bus | AC/DC | Up to 8 | 482.6 x 221.5 x 205 | ~10 kg |
| ANB10D | Node Unit for Dual-Redundant ESB Bus | AC/DC | Up to 8 | 482.6 x 221.5 x 205 | ~10 kg |
| EC401 | ESB Bus Coupler Module (Standard) | N/A | N/A | – | – |
| EC402 | ESB Bus Coupler Module (Redundant) | N/A | N/A | – | – |
| PW481 | Power Supply Module for Node Unit | 24 VDC | N/A | – | – |
| ADCV01 | Dummy Cover for I/O Slot | N/A | N/A | – | – |
Popular Yokogawa Models
| Model | Description | Application Area | Dimensions (mm) | Weight |
|---|---|---|---|---|
| STARDOM FCN-500 | Autonomous Controller | Edge/IoT Control | 160 x 190 x 130 | ~1.4 kg |
| PW402 | Power Supply Module | FCS Systems | 130 x 142.5 x 32.8 | ~0.45 kg |
| CP451-10 | Communication Processor | CENTUM VP | 175 x 100 x 35 | ~0.6 kg |
| ALR121 | Remote I/O Communication Module | FIO Systems | 130 x 142.5 x 32.8 | ~0.45 kg |
| NFAI841 | Analog Input Module (8ch, 4-20mA) | FIO | 130 x 142.5 x 32.8 | ~0.45 kg |
| NFDO841 | Digital Output Module (16ch) | FIO | 130 x 142.5 x 32.8 | ~0.45 kg |
