Product Details
Configured for high-speed logic execution and central task processing in Yokogawa MOPs architectures, the Yokogawa CP81B*C (CP81B Processor Card) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
- CP81B: Base processor card hardware platform for Multi-Function Operations Processor Systems.
- *C: Revision or regional hardware suffix indicating specific backplane circuit and board component revision level.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CP81B*C |
| Brand | Yokogawa |
| Origin | Japan |
| Power Supply | 24 VDC +/-10% |
| Current Consumption | 1.0 A |
| Withstanding Voltage | 1000 V AC per min (power terminals to ground) |
| Isolation Resistance | Minimum 100 Mohm (500 V DC) |
| Dimensions | 17.8 cm x 5.1 cm x 33.0 cm |
| Weight | Approx. 0.9 kg |
| Operating Temp | 0 to 50 deg C |
| Power Consumption | Nominal 24 W (24 VDC at 1.0 A) |
| Programming Language | Object ladder language |
| Control Mode | Repetitive operation based on stored programs |
| I/O Control Mode | Direct I/O instruction refresh |
| Fan Failure Alarm | Contact output open on fan failure (Max. 30 VDC, 300 mA) |
Yokogawa Channel-to-Channel Isolation & Bus Communications
The CP81B*C processor card integrates internal isolation barriers maintaining over 100 Mohm insulation resistance between power terminals and ground, alongside 1000 V AC dielectric isolation. This structural design isolates the central processor logic from field-side voltage spikes and common-mode noise. Direct I/O refresh instructions bypass peripheral scan latencies, facilitating high-speed data acquisition and deterministic field signal processing across 4-20 mA HART loop protocol interfaces and distributed DCS nodes.
Frequently Asked Questions
Q: How does the CP81B*C signal cooling system degradation to external monitoring hardware?
A: The card includes a dedicated dry contact alarm output rated up to 30 VDC at 300 mA, which opens automatically if an internal cooling fan fault occurs.
Q: What power input range is required for stable execution of the CP81B*C logic engine?
A: The board operates on a nominal 24 VDC supply with an allowable input voltage tolerance of +/-10%, drawing 1.0 A under standard operating loads.
Field Installation Guidelines
Insert the CP81B*C processor card vertically into its assigned rack slot, ensuring the backplane connectors align perfectly before pushing firmly to lock the card into position. Tighten top and bottom faceplate thumb screws to establish protective frame earth grounding and mechanical retention against vibration. Connect dedicated 24 VDC power wiring to the terminal block using correct wire gauges, and route external fan alarm contact leads away from high-voltage AC lines to prevent induced electrical noise.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Batch vs Continuous Processing in Industrial Automation: Architectural Strategies for Control Engineers
Selecting the proper control architecture remains a pivotal decision when designing industrial automation systems. Automation engineers must evaluate whether a batch or continuous process model best fits their production requirements. This fundamental choice influences PLC and DCS programming, hardware redundancy, sensor selection, and overall factory automation layouts.
Demystifying Signal Isolators: Operating Principles, Architectural Types, and Industrial Applications
Industrial automation systems rely on pristine analog signal transmission across complex control loops. Instrument technicians and system integrators frequently deploy signal isolators to maintain signal integrity between field sensors and control platforms. Eliminating electrical noise, ground loops, and high-voltage transients protects delicate PLC, DCS, and SCADA input channels from permanent damage.
Demystifying Industrial Control Systems: Comparing PLC, DCS, RTU, SCADA, and PAC
Modern factory automation relies on distinct control architectures to manage complex process environments efficiently. Control engineers often evaluate PLC, DCS, RTU, SCADA, and PAC platforms when designing industrial infrastructure. Understanding the functional boundaries of each technology ensures optimal system performance, high availability, and long-term cost efficiency.