CP99A-A Yokogawa Series Datasheet & Technical Manual

Yokogawa CP99A-A CPU Module for Field Control Stations

Yokogawa CP99A-A CPU Module for Field Control Stations

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Yokogawa CP99A-A CPU Module Configured for high-speed logic execution and system coordination within Field Control Station (FCS) architectures, the Yokogawa...

SKU: CP99A-A

Manufacturer: Yokogawa
Product No.: CP99A-A
Product Type: CPU Processors
Product Origin: Japan
Payment:T/T, Western Union
Weight: 700g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa CP99A-A CPU Module

Configured for high-speed logic execution and system coordination within Field Control Station (FCS) architectures, the Yokogawa CP99A-A (CP99A-A CPU Module) provides direct physical execution of distributed control algorithms.

Hardware Specifications

Parameter	Specification
Model	CP99A-A
Brand	Yokogawa
Origin	USA
Weight	0.7 kg
Dimensions	2.5 × 20.3 × 15.2 cm
Operating Temp	0 to 50 deg C
Power Consumption	Approx. 20 W
Processor	High-performance RISC
Cycle Time	10 ms (typical)
Redundancy	Dual CPU redundancy supported

Process Control and DCS Connectivity

The CP99A-A serves as the primary processing engine for CENTUM CS3000 and CENTUM VP platforms. It maintains process data integrity through an internal high-speed RISC processor, facilitating a deterministic 10 ms cycle time for control loop execution. Integration with the Vnet/IP and Ethernet infrastructure allows for robust field-bus communication. To ensure continuous process control, the module architecture supports channel-to-channel isolation on associated I/O base units, preventing electrical faults in field-level sensors from propagating into the CPU backplane bus.

Frequently Asked Questions

Q: Does the CP99A-A support hot-swapping during active control operations?

A: Hot-swapping is restricted. The system must be set to a safe state or the specific FCS node must be powered down before module removal or insertion to protect the backplane pins and the internal flash memory from electrical transients.

Q: How is CPU redundancy managed in a dual-configuration setup?

A: The CP99A-A performs continuous status synchronization via a dedicated tracking bus. In the event of a primary CPU fault, the standby module assumes master control, maintaining state data and output signals to ensure zero-bumpless transfer.

Field Installation Guidelines

Mounting: Secure the module within the designated FCS base unit slot. Ensure the module is fully seated until the connector registers on the backplane. Tighten the front panel retainers to establish proper chassis bonding.
Grounding: Connect the I/O base unit chassis to a dedicated protective earth (PE) bus. This is required to maintain the electrical isolation boundary and minimize electromagnetic interference (EMI) ingress.
Cooling: Maintain a minimum clearance of 50 mm above and below the module cage. The CP99A-A relies on natural convection cooling; ensure cabinet ventilation fans are functional and filters are clean.
Cabling: Use shielded Ethernet or Vnet/IP cabling for system communication. Route these cables through dedicated signal conduits, physically isolated from high-power distribution lines or motor drive power leads.

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