You're building or updating an industrial control panel, and when you compare PLCs and HMIs, you're really choosing between two different jobs: a touchscreen operator interface and a programmable logic controller.
The first question is not which brand to buy, but which job the component has to do. A PLC runs the logic and controls outputs. An HMI gives an operator a screen to monitor and interact with that process.
Quick verdict
If your panel already has a processor and you just need a screen for operators, the PanelView Plus 7 is the clear fit. If you're building or replacing the logic brain of a machine and want a controller to drive it, the Mitsubishi FX3U is the more direct choice. The $683.03 spread between their listed prices tracks their different roles.
| Allen Bradley PanelView Plus 7 | Mitsubishi FX3U | |
|---|---|---|
| Listed Price | USD 799.99 | USD 116.96 |
| Price Bar | ||
| Condition | Used | New |
| Key Feature | Color Display | PLC Processor Module |
Where each product wins
Allen Bradley PanelView Plus 7 wins when operator visibility is the priority. It is a touchscreen HMI, built for showing machine status and letting operators interact with a process. If your PLC or other controller is already in place and you need a screen in front of it, this is the component to stand in that role.
Mitsubishi FX3U wins when you need a controller to execute machine logic. It gives you the programmable brain for a small machine or process. If your project starts with control logic rather than display needs, the FX3U is the more direct starting point.
Product notes
Allen Bradley PanelView Plus 7 Ser B Industrial HMI Touchscreen 2711P-T12W21D8S
This Allen Bradley PanelView Plus 7 is the piece to choose when operators need a color screen to monitor and control equipment. It is listed as used, with visible scratches and scuffs on the screen surface and cosmetic wear on the bezel. That means you're buying function over showroom polish. The PanelView Plus 7 is built around touchscreen HMI work, so it suits applications where the controller already exists and the missing link is a clear operator interface. If a pristine appearance is important, the used condition is the trade-off; if screen functionality matters most, this is the HMI to pick.
1PCS Brand New Mitsubishi PLC FX3U-32MT/ES-A Programmable Logic Controller
This Mitsubishi FX3U is the component that gives a machine its logic. As a PLC processor module, its job is to run the program that controls outputs and inputs. If you are starting a small control project from scratch, this is a logical place to begin. The limitation is scope: it is a PLC processor module, so the operator interface role would need to be handled by a separate panel component. If your project also needs a screen for operators, that screen is an additional part. Keep the two roles separate, and the intended use becomes clear.
Final choice by use case
Choose the Allen Bradley PanelView Plus 7 when operators need to see and interact with a process through a touchscreen. Choose the Mitsubishi FX3U when you need a PLC to control the machine. If you're building a full panel from scratch, you may end up needing both-the FX3U to run the process and a screen such as the PanelView to talk to it.
