Product Details
The Yokogawa MDK2 S1, also cataloged as the MDK2 I/O Module, operates as a dedicated hardware component for field signal interfacing and distributed I/O execution within Yokogawa CENTUM DCS platforms.
Suffix Breakdown & Model Matrix
| Code Element | Specification / Description |
|---|---|
| MDK2 | Base model designation for industrial I/O module series |
| S1 | Style code 1 denoting hardware circuit layout and terminal block assembly |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MDK2 S1 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.45 kg |
| Dimensions | 130 mm x 30 mm x 100 mm |
| Operating Temp | -20 deg C to 60 deg C |
| Power Consumption | 5 W |
| Input Voltage | 24 VDC nominal |
| Signal Interface | Multi-channel process I/O interface |
| System Compatibility | Yokogawa CENTUM Series DCS |
Channel-to-Channel Isolation and DCS Signal Integration
The MDK2 S1 I/O module manages field signal acquisition across distributed control nodes. Equipped with channel-to-channel galvanic isolation, the module prevents ground loops and suppresses common-mode electrical noise across field loops. The hardware conditions 4-20 mA HART loop protocol signals and discrete I/O channels, executing analog-to-digital data translation to preserve deterministic timing across system backplane buses.
Frequently Asked Questions
Q: What is the primary function of channel-to-channel isolation on the MDK2 S1 module?
A: Galvanic channel isolation decouples field-side signal paths from internal backplane micro-logic, preventing stray ground potential differentials from causing cross-talk or measurement errors on adjacent channels.
Q: Does the MDK2 S1 module support online replacement during active system operation?
A: Hot-swapping is permitted only when installed in redundant I/O rack configurations where secondary peer cards hold the active process loop state without interruption.
Q: What supply voltage tolerance is required for powering the MDK2 S1 I/O card?
A: The module requires a regulated 24 VDC supply with an operating tolerance of +/-10% (21.6 VDC to 26.4 VDC) under full operational load.
Field Installation Guidelines
- Chassis Slot Insertion: Align the printed circuit board guides with the rack slot tracks inside the DCS chassis. Push the module firmly into the backplane bus socket until the locking tabs snap into position.
- Power Supply Checks: Verify that the 24 VDC supply voltage remains within operational limits before applying power to the module rack.
- Cable Shield Termination: Connect signal cable shields to the functional earth (FE) cabinet ground bar at a single point to prevent high-frequency noise interference.
- Wiring Separation: Maintain a minimum distance of 300 mm between low-voltage I/O cables and high-voltage AC power distribution lines inside the panel wire ducts.
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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