



Product Introduction
The Yokogawa PW102 Power Supply Module is a legacy industrial power and control module designed for Yokogawa CENTUM and distributed automation systems. It is commonly recognized as part of earlier-generation DCS architectures where it provides both power distribution and high-density digital output functionality within control cabinets.
Unlike modern standalone power modules, the PW102 integrates control-level output capability with system power support, making it a multifunctional component in legacy Yokogawa installations. It remains widely used in retrofit projects and long-life industrial systems where system continuity is essential.
Technical Specifications
| Parameter | Specification |
|---|
| Model | PW102 |
| Module Type | Power / Digital Output Hybrid Module |
| System Compatibility | Yokogawa CENTUM VP / CENTUM CS |
| Output Channels | 16-point digital output |
| Output Type | Current sink output |
| Output Voltage | 24 V DC |
| Output Current | Up to 2 A per point |
| Total Load Handling | Industrial multi-load configuration |
| Diagnostic Functions | Short circuit / open circuit detection |
| Monitoring | Output current monitoring |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Dimensions | Approx. 127 × 84 × 40 mm |
| Weight | Approx. 0.35–0.5 kg |
| Mounting Type | Rack-mounted DCS module |
Industrial Applications
The PW102 is typically used in established industrial automation environments where robust digital output control is required:
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Valve actuation and control systems
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Motor and pump control in process plants
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Oil & gas production facilities
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Petrochemical and refinery automation
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Legacy CENTUM-based distributed control systems
Its strong output capability makes it suitable for driving field devices directly in control-critical applications.
Technical FAQs
1. What is the main function of the PW102?
It provides high-current digital output control for industrial field devices.
2. Is it a pure power supply module?
No, it combines power-related architecture with digital output functionality.
3. How many output channels does it support?
It supports 16 digital output points.
4. What type of loads can it drive?
It can drive valves, motors, relays, and industrial actuators.
5. What is the output current per channel?
Up to 2A per channel.
6. What systems is it compatible with?
Yokogawa CENTUM VP and CENTUM CS systems.
7. Does it include diagnostics?
Yes, including short-circuit and open-circuit detection.
8. Is it suitable for modern systems?
It is mainly used in legacy or retrofit environments.
9. What is its operating temperature range?
0°C to 60°C.
10. Why is it still widely used?
Because many industrial plants continue to operate stable legacy CENTUM systems requiring compatible modules.