Product Details
The Yokogawa MDK1*B, also cataloged as the MDK1 Communication PCB Board, operates as a dedicated hardware component for data processing and signal interface routing within Yokogawa CENTUM control system networks.
Suffix Breakdown & Model Matrix
| Code Element | Specification / Description |
|---|---|
| MDK1 | Base model designation for industrial control communication board series |
| *B | Style code Revision B specifying physical circuit layout, component footprint, and terminal interface assembly |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MDK1*B |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.4 kg |
| Dimensions | 13.00 cm x 12.50 cm x 8.00 cm |
| Operating Temp | 0 deg C to 55 deg C |
| Storage Temp | -20 deg C to 70 deg C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
| Power Supply | 24 VDC |
| Power Consumption | 5 W |
| Core Function | Communication and data processing execution |
Channel-to-Channel Isolation and DCS Signal Integration
The MDK1*B communication board processes high-speed data exchanges across the internal DCS backplane. Built-in channel-to-channel galvanic isolation decouples individual signal paths, suppressing ground loop currents and filtering common-mode electrical noise across field loops. The board routes 4-20 mA HART loop protocol data and discrete digital states into system registers, ensuring signal integrity between distributed I/O nodes and central processor units.
Frequently Asked Questions
Q: Does the MDK1*B board support online hot-swapping during active system operation?
A: Module insertion or removal must be conducted while the target rack segment is de-energized, unless installed within a designated redundant communication slot, to prevent transient backplane disruptions.
Q: How does internal isolation protect signal processing logic on the MDK1*B board?
A: Embedded channel-to-channel isolation barriers decouple field-side wiring loops from internal micro-logic circuits, preventing ground potential differentials from damaging adjacent channels.
Q: What power parameters are required to run the MDK1*B board?
A: The board operates on a regulated 24 VDC power supply rail, drawing a maximum continuous power load of 5 W under full processing operation.
Field Installation Guidelines
- Board Mounting: Align the PCB card edges with the guide rails of the designated rack slot. Slide the MDK1*B board inward until the rear backplane connector fully seats into the chassis socket.
- Power Supply Checks: Verify that the incoming power supply is stabilized at 24 VDC prior to energizing the rack assembly.
- Cable Shielding: Connect all communication cable shielding drain wires directly to the cabinet functional earth (FE) ground bar at a single termination point to prevent noise loops.
- Thermal Clearance: Maintain unobstructed ventilation space above and below the card cage to allow free air convection, keeping operating ambient temperatures within 0 deg C to 55 deg C.
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
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