Industrial control panels usually need two different pieces: a logic controller to run the machine and a human-machine interface for people to interact with it. When you are choosing between a used Maple Systems HMI and a new Mitsubishi FX3U PLC, the first question is which of those jobs is missing from your panel.
Quick verdict
Choose the Maple Systems HMI5070L if operator interaction is the priority: it's the operator-facing HMI of the pair. Choose the Mitsubishi FX3U if the control logic itself is what your cabinet is missing: it's the new PLC.
At a glance
| Product | Type | Condition | Price |
|---|---|---|---|
| Maple Systems HMI5070L 7-inch Industrial Touchscreen | Touchscreen HMI | Used | $199.99 |
| Mitsubishi FX3U PLC | PLC processor module | New | $116.96 |
Where each product wins
- The Maple Systems HMI5070L is the only HMI here, so it wins whenever the job calls for an operator-facing display.
- The Mitsubishi FX3U is the only new PLC here, so it wins when you want fresh logic hardware and the lower listed price.
How to decide
Start with the part of the system you are missing. If the machine already has a way for operators to interact with it and you are replacing the logic side, the Mitsubishi FX3U is the new controller to build around. If the opposite is true and the control logic is already handled but workers need a screen, the Maple Systems HMI5070L is the HMI for the panel. If both roles are open, treat the two as two halves of one system: the PLC runs the logic and the HMI gives the operator a view and a way to act.
Maple Systems HMI5070L 7-inch Industrial Touchscreen
If your operator needs a touchscreen to see and control a machine, the Maple Systems HMI5070L is the HMI side of this pairing. The listed price is $199.99, and the unit is used with a 7-inch display. That screen size gives you a compact operator-facing window rather than a controller with no screen. The touchscreen feature is the main advantage here: it puts the interface directly in front of the operator.
Only what is shown in the pictures is included; no accessories or extra components come with it. If your project expects a complete HMI package, this unit asks you to supply anything beyond what is pictured.
Mitsubishi FX3U Programmable Logic Controller
The Mitsubishi FX3U-32MT/ES-A is the logic side of this decision. It is brand new, priced at $116.96, and is a PLC processor module. If your machine already has an operator screen, or if you plan to add one, this module gives you the processing core for a control sequence at a lower initial outlay than the used HMI.
As with any processor module, the PLC is not the whole control cabinet. It handles the logic, while the operator interface, power supply, and field wiring complete the system. If your immediate need is the controller rather than a display, the Mitsubishi FX3U is the new, lower-priced option here.
Final choice by use case
- Need an operator-facing display? Pick the Maple Systems HMI5070L.
- Need the controller brain for a machine? Pick the Mitsubishi FX3U PLC.
- Need both? Use the HMI with the PLC so operators get a view and the system gets control.
Whichever you pick first, choose the part your control sequence cannot do without, then add the other when it makes sense for your panel.
