Product Description

The SCP451-11 S1 is a specialized central processing unit for the Yokogawa CENTUM VP distributed control system. Designed for the most challenging industrial environments, it combines advanced computational power with dual-layer protection.

The “11” suffix denotes a high-specification hardware build featuring:

• FM Non-Incendive (NI) explosion protection for hazardous areas

• ISA Standard G3 conformal coating to prevent corrosion from harsh gases

As an S1 style revision, it provides a stable and deterministic platform for executing mission-critical control algorithms and managing high-speed Vnet/IP data traffic. It is ideal for refineries and chemical plants requiring high-availability control in zones where safety and environmental resistance are critical.

Technical Specifications

Application Scenarios

The SCP451-11 S1 is designed for “Zone 2” or “Division 2” hazardous locations with volatile gases. Its specialized conformal coating makes it ideal for:

• Paper mills

• Wastewater treatment facilities

• Sulfur recovery units
  where hydrogen sulfide (H₂S) or chlorine gas could otherwise damage electronics.

Frequently Asked Questions

Q: How does the -11 model differ from the -51 model?
A: Both modules feature ISA G3 conformal coating, but the SCP451-11 S1 includes FM NI explosion protection and hardware certification for hazardous locations, whereas the -51 is a standard type module.

Q: Can I replace this module without stopping the process?
A: Yes, in a duplexed (redundant) configuration, the SCP451-11 S1 supports hot-swapping, allowing online replacement without interrupting process control.

Q: Is this module compatible with all CENTUM VP racks?
A: It is designed for specific FCU racks that support the SCP451 series. Always verify backplane compatibility before installation.