CP81B*C Yokogawa CENTUM Datasheet & Technical Manual

Yokogawa CP81B*C CENTUM Field Control Station Processor Module

Yokogawa CP81B*C CENTUM Field Control Station Processor Module

Availability: 10 left in stock

Yokogawa CP81B*C CENTUM Processor Card Configured for discrete control logic execution in distributed control systems, the Yokogawa CP81B*C (Yokogawa CP81B...

SKU: CP81B*C

Manufacturer: Yokogawa
Product No.: CP81B*C
Product Type: Processor Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 900g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa CP81B*C CENTUM Processor Card

Configured for discrete control logic execution in distributed control systems, the Yokogawa CP81B*C (Yokogawa CP81B Processor Card) provides direct physical/electrical execution. The hardware processes algorithmic computation routines, schedules downstream input/output sub-bus tasks, and coordinates synchronized memory tracking inside the controller rack environment. It establishes structural connection points with the primary system backplane to route processed data frames to the control network.

Layout Configuration Selection: Layout 1

Hardware Specifications

Parameter	Specification
Model	CP81B*C
Brand	Yokogawa Electric Corporation
Origin	Japan
Weight	0.9 kg (2 lbs 0.0 oz)
Dimensions	7.6 cm x 2.5 cm x 25.4 cm (3.0 in x 1.0 in x 10.0 in)
Operating Temp	0 to +50 deg C
Power Consumption	5 VDC drawn via the rack backplane
Architecture Type	Field Control Station (FCS) Processor Module
Memory Profile	Greater than or equal to 8 MB control memory with battery-backed SRAM
Network Interface	Dual-redundant Vnet/IP communication protocol
Data Switch Speed	High-speed primary-to-secondary CPU failover switching
Storage Temperature	-20 to +70 deg C
Humidity Range	5 to 95% RH (non-condensing)
Compliance Formats	CE, CSA industrial standards

Process Control & DCS Instrumentation Technical Attributes

This execution card utilizes a high-speed microprocessor combined with a minimum of 8 MB of internal control memory to resolve deterministic loop algorithms. The network layer integrates a dual-redundant Vnet/IP bus architecture that facilitates isolated, parallel data path management across the main system matrix. To prevent data corruption during unexpected power interruptions, the onboard battery-backed SRAM maintains retaining registers and live variable states, while optical and galvanic channel-to-channel isolation circuits suppress noise propagation between the logic bus and the field interface.

Frequently Asked Questions

Q: How does the processor handle redundancy arbitration and switchover logic between paired modules?

A: The processor card runs a dedicated tracking link across the backplane bus to continuously mirror internal memory states. In the event of a fault detection routine on the primary unit, the hardware triggers a deterministic hardware switchover to the backup card without interrupting active field control loops.

Q: What are the maintenance requirements for the onboard memory retention circuit?

A: The hardware utilizes a lithium backup battery to sustain data inside the volatile SRAM matrix when the 5 VDC backplane power is disconnected. The station diagnostics track the cell voltage level and trigger a system alert prior to full depletion.

Field Installation Guidelines

FCS Slot Insertion: Align the module edges carefully within the specific card guides of the Field Control Station rack, pushing firmly until the multi-pin connector fully mates with the backplane bus socket before securing the lock screws.
Grounding Connection: Verify that the chassis frame ground connection of the rack aligns with the single-point master control room instrumentation earth bus bar to eliminate ground loops.
Network Wiring Configuration: Attach the network patch cables to both the primary and secondary Vnet/IP communication ports on the backplane, maintaining independent paths to avoid common-mode cable cuts.
Thermal Management: Arrange the wiring bundles to prevent obstruction of the ventilation air pathways underneath and above the processor card slot to prevent heat accumulation inside the enclosure.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.