YKHMI MM‑12MR‑4MTS 2.8″ PLC + HMI All‑in‑One Touchscreen

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Intro Summary
Compact 2.8″ touchscreen PLC + HMI combo, ideal for small automation projects and panel integration.

Product Overview
The MM‑12MR‑4MTS‑FE280‑FX‑A is an all‑in‑one industrial controller combining a Mitsubishi FX‑compatible PLC with a 2.8″ color touchscreen HMI. It fits into compact panels (88×78×38 mm body, requiring a 79×68 mm cutout) and features multiple digital inputs/outputs, relay outputs, and high‑speed pulse I/O. YKHMI (via Zhongda) sources this model for compact automation applications.

How to Use

  1. Mount the unit in the appropriate panel cutout (79×68 mm).
  2. Wire digital I/O and power inputs per the manual.
  3. Connect to PC via mini‑USB for program downloads.
  4. For PLC, use FX-compatible software (Mitsubishi GX Works2); for HMI, use YKHMIV5.3.
  5. Avoid running near high heat or EMI. Ensure proper wiring to maintain reliability.

Frequently Asked Questions (FAQ)

  1. What is this device?
    An integrated PLC + HMI with 2.8″ touchscreen.
  2. Which PLC architecture does it use?
    Compatible with Mitsubishi FX series programs via GX Works2.
  3. What inputs and outputs are available?
    Typically 8–12 digital inputs, 2 relay outputs, plus fast pulse I/O—details depend on variant.
  4. How is it programmed?
    PLC logic via GX Works2; HMI screens via YKHMIV5.3 software.
  5. How to connect to PC?
    Use the mini‑USB port and install drivers.
  6. What panel cutout size is required?
    79×68 mm.
  7. What industrial protection does it have?
    No explicit IP rating, but enclosures typically offer basic dust/splash resistance.
  8. Where is it manufactured?
    By YKHMI/Zhongda in China, aimed at budget automation markets.
  9. Is technical support available?
    Yes—via seller channels and basic documentation included.

User Review Summary
Limited user reviews available. Seller listings indicate positive reputation and adequate local stock for quick delivery in Thailand.

Comparison with Similar Products

  • MM‑20MR‑4MTS‑F420‑FX‑A: 4″ display, 12 digital inputs and 8 relay outputs; larger and more expensive (~$67).
  • CNC/PLC-HMI units from other brands offer similar I/O but vary in screen size and price, making this a strong compact-value choice.

Technical Specifications

  • Display: 2.8″ color touchscreen
  • Size: 88×78×38 mm; cutout 79×68 mm
  • Input/Output: typically 8–12 digital inputs, 2 relay outputs, fast-pulse I/O
  • Connectivity: mini-USB for programming
  • Software: Mitsubishi GX Works2 (PLC), YKHMI’s HMI tool
  • Power: likely 24 VDC (common for FX series)
  • Mounting: panel-mounted

Brand or Manufacturer Info
YKHMI (Zhongda) is a Chinese industrial-automation manufacturer producing low-cost HMI+PLC units compatible with Mitsubishi FX series. They position themselves as a national high‑tech enterprise focused on compact automation.

Purchase Recommendations
Available from multiple international sellers:

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