Choosing between a PLC and an HMI is simple when they come as separate boxes. The real decision is between a new all-in-one PLC/HMI controller and a used dedicated touchscreen. One is a compact integrated unit at USD 95.99; the other is a Maple Systems operator panel at USD 199.99. Here's how to pick.
Quick Verdict
Buy the integrated PLC/HMI if you need new hardware, built-in logic, and I/O in one compact panel. Buy the used Maple Systems HMI5070L if you need a display panel and already have the controller side handled. The listed prices are $104 apart, so the choice comes down to controller versus screen. If you're building a small machine from scratch, the all-in-one saves you from matching separate parts; if you're upgrading an operator panel, the display-focused route is the practical pull.
At a Glance
| Product | Listed Price | Condition | Screen | Relative Price |
|---|---|---|---|---|
| PLC Controller Programmable Logic Controller 5" HMI Touch Screen For Industrial | USD 95.99 | New | 5" | |
| USED - Maple Systems HMI5070L 7" Industrial Touchscreen With | USD 199.99 | Used | 7" |
Where the All-in-One PLC/HMI Wins
The PLC Controller Programmable Logic Controller 5" HMI Touch Screen For Industrial is the lower-priced choice and the only new unit here. It's an all-in-one PLC processor module with 9 inputs, 8 relay outputs, and 2-axis pulse output up to 100 kHz for stepper or servo use. It programs through FX1S-compatible GX Works2/Developer, and the free HMI software supports multiple languages. For packaging, labeling, and positioning machines, that's a complete controller package.
Where the Maple Systems HMI5070L Wins
The USED - Maple Systems HMI5070L 7" Industrial Touchscreen With is the higher-priced option and gives you a larger touchscreen with a specific model number, so you know exactly which panel it is. The larger display is its main advantage; it gives operators more room for alarms, status, and controls than the compact unit. If your machine already has a PLC and needs a dedicated touchscreen, this is the one to target.
Product Notes
PLC Controller with HMI Touch Screen

This all-in-one unit combines the HMI and PLC in a compact package. It's the lower-priced choice of the two and is listed as new. The 9 inputs and 8 relay outputs are practical for small machines, and the 2-axis pulse output up to 100 kHz can drive steppers or servos. FX1S-compatible GX Works2/Developer programming and free multi-language HMI software keep the setup straightforward, and step-by-step video tutorials plus lifetime technical support are included. The limitation is the compact display: you're getting an integrated controller rather than a large dedicated operator panel.
Maple Systems HMI5070L Touchscreen

This Maple Systems HMI5070L is an industrial touchscreen with the model number in the title. It's the higher-priced option in this pairing and is sold as used. The large touchscreen is the reason to choose it; operators get plenty of room for screens and controls. The model number HMI5070L is clear from the title, so you can identify the panel precisely. The used, pictures-only sale is the main catch: you receive what's shown in the photos and no extra accessories or components. That makes it a replacement-oriented HMI rather than a full controller solution.
Final Choice by Use Case
- Need a new integrated controller with built-in I/O? Go with the all-in-one PLC/HMI combo.
- Need a used Maple Systems display panel for an existing setup? Go with the HMI5070L.