The Ultimate Guide to Buying a Mitsubishi PLC for Your Automation Projects

In industrial automation, Mitsubishi Electric is a global leader. Mitsubishi Programmable Logic Controllers (PLCs), with their reliability, durability, and high functionality, are widely used in manufacturing, packaging, processing plants, and factory automation. But with so many models to choose from in the market, how do you pick the best?

In this guide, we'll walk you through everything you need to know about Mitsubishis PLCs — from top product recommendations, pros and cons, and an entire buyer's guide — so you can make an informed decision.

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What is a Mitsubishi PLC?

A Programmable Logic Controller (PLC) is an industrial computer used for controlling electromechanical processes. From simple control of lighting systems to controlling robotic lines of great complexity, a PLC like Mitsubishi's is at the heart of most automation setups.

Mitsubishi provides:

FX Series – Compact, cost-effective for small to medium-sized applications

L Series – Modular, expandable for more complex systems

Q Series – High-performance PLCs for large industrial applications

Best Mitsubishis PLCs to Consider

Below are the best Mitsubishis PLCs for different applications.

1. Mitsubishi FX5U-32MR/DS (iQ-F Series)

Best for: Small to medium machines, OEMs, and cost-sensitive applications.

✅ Pros:

Built-in Ethernet, high-speed counters, and analog I/O

Easy programming with GX Works3 software

Compact and easy to install

High-speed performance with internal positioning

❌ Cons:

Limited I/O expandability compared to the Q series

Not ideal for large industrial systems

Price Range: $350 - $500

2. Mitsubishi FX3G-24MR/ES

Ideal for: Machine and automation control at the entry level.

✅ Pros:

Inexpensive but powerful

Up to 256 I/O points can be expanded

A wide range of communication modules are supported

Simple programming interface to use

❌ Cons:

No built-in analog I/O

Slower processor compared to FX5 series

Price Range: $250 - $400

3. Mitsubishi L Series (e.g., L26CPU-BT)

Ideal for: Mid- to large-sized integrated control automation systems.

✅ Pros:

High-speed processing and motion control built-in

SD card slot built-in for data logging

Modular and flexible configuration

Ideal for complex applications (SCADA, robotics)

❌ Cons:

Slightly higher learning curve

More expensive than FX series

Price Range: $600 - $1000+

4. Mitsubishi Q Series (e.g., Q03UDECPU)

Ideal for: Big and complex industrial automation.

✅ Pros:

High-speed processing and network communications

Multi-protocol compatibility (CC-Link, Ethernet/IP, etc.)

Huge I/O expandability

Redundancy and safety features for mission-critical systems

❌ Cons:

Expensive upfront

Requires more space and time to configure

Price Range: $1000 - $3000+

Mitsubishi PLC Buying Guide

Before you buy a Mitsubishi PLC, the following are the most significant factors you need to consider:

1. Define Your Application Needs

Small Machines or OEM Equipment: Choose the FX5U or FX3G series.

Advanced Control and Expansion: Consider the L Series.

Large and Complex Systems: Choose the Q Series for expandability and speed.

2. Number of I/O Points

Estimate the number of digital and analog input/output points your system will require.

FX Series: Great for ≤256 I/O

L Series: Mid-range (up to 512 I/O)

Q Series: For thousands of I/O points

3. Communication Protocols Do you need:

Ethernet connectivity?

Modbus or Profibus?

CC-Link compatibility?

Make sure your PLC is compatible with your existing network protocols.

4. Programming Software Compatibility

Most Mitsubishis PLCs are programmed in GX Works2 or GX Works3.

FX3G = GX Works2

FX5U and higher = GX Works3

If you're familiar with one version already, stick with a compatible PLC.

5. Expandability

Need room to expand? Choose a model with modular construction (like the L or Q Series) so you can add additional I/O, communications modules, or special function blocks as needed.

6. Budget

Entry-level (< $500): FX3G or FX5U

Mid-range ($500 - $1000): L Series

High-end ($1000+): Q Series

⚙️ Benefits of Using Mitsubishi PLCs

✅ Reliability

Mitsubishi Electric is known for high-quality engineering. Their PLCs are rugged and built to withstand harsh industrial conditions.

✅ Global Support

Available in over 120 countries, Mitsubishis PLCs are backed by decent customer service and technical support.

✅ Scalable Solutions

From small embedded control to large plant automation for everything, Mitsubishi offers PLCs for every stage of growth.

✅ Energy Efficiency

Their newer models offer cost-effective power consumption and reduced heat generation.

Mitsubishis PLC Applications

Manufacturing plants

Food & Beverage processing

Packaging lines

Material handling systems

HVAC and building automation

Renewable energy control systems

Whether you need to control a conveyor belt or a whole factory, there is a Mitsubishis PLC for the task.

Why Mitsubishi Over Other Brands?

Feature|Mitsubishi|Siemens|Allen-Bradley

Price|✅ Affordable|❌ Expensive|❌ Very expensive

Software|✅ User-friendly|❌ Complex|✅ Modern

Global Support|✅ Excellent|✅ Excellent|✅ Excellent

Modularity|✅ Good|✅ Excellent|✅ Excellent

Mitsubishi offers the sweet spot between price, performance, and ease of use, especially for small to medium-sized applications.

Pro Tips Before You Buy

Start small, think big: Even if you are building a nest-sized system today, choose a PLC that can expand.

Use simulation tools: Try out your ladder logic on GX Simulator before you upload it to the actual PLC.

Invest in training: Mitsubishi offers training modules and certification. The more you know the system, the more value you'll gain.

Frequently Asked Questions (FAQs)

Q: Can I use a Mitsubishis PLC with third-party sensors?

A: Yes, provided the sensors are compatible with the PLC's input voltage/type.

Q: Do Mitsubishis PLCs allow remote monitoring?

A: Yes, newer models such as the FX5U and L Series allow Ethernet-based remote monitoring and control.

Q: Is GX Works3 compatible with all Mitsubishis PLCs?

A: GX Works3 is compatible with FX5U, L Series, and newer models. Older models can be used with GX Works2 or GX Developer.

Q: Are Mitsubishis PLCs suitable for beginners?

A: Yes, especially the FX3G and FX5U models. They are inexpensive, easy to program, and have good community support.

Where to Buy Mitsubishis PLCs?

Looking to buy genuine Mitsubishis PLCs at affordable prices?

Check here to view our Mitsubishis PLC offerings

We offer:

Bulk order discounts

Fast shipping

Technical support

100% original Mitsubishi Electric products

Final Thoughts

Whether you're just starting out with automation or building a large industrial project, Mitsubishi PLCs offer the perfect balance of power, value, and ease of use. By understanding your application requirements and referring to this guide, you'll be well-placed to choose the perfect PLC for your application.

Ready to automate smarter?

Don't wait — invest in a Mitsubishis PLC today and take your industrial automation to the next level.