When your control panel isn't finished, the first big purchasing question is whether to invest in an operator interface or the controller that runs the logic. Both are essential, but a limited budget might force you to choose one now. We're comparing the Delta DOP-107EG HMI touch screen against the AutomationDirect D2-260 PLC CPU to help you decide which component deserves your money first.
Quick verdict
If you need a new operator interface for your control panel, the Delta DOP-107EG HMI touch screen is the straightforward choice. If you need the logic-crunching capability of a PLC and can work with a used unit, the AutomationDirect D2-260 gives you more processing power for $60.40 less.
At a glance
| Feature | Delta DOP-107EG | AutomationDirect D2-260 |
|---|---|---|
| Product type | HMI touch screen | PLC CPU module |
| Condition | New | Used |
| Listed price | USD 190.40 | USD 130.00 |
| Best suited for | Operator monitoring and touch control | Running automation logic and PID loops |
Where each product wins
The Delta DOP-107EG wins if your job calls for a fresh, touch-based interface. It arrives new, so you're not inheriting someone else's wear. As an HMI, it's designed to give operators a clear window into machine status and a way to interact with the process through a touch screen. This is the component to reach for when you need to display data and collect inputs on the plant floor.
The AutomationDirect D2-260 wins on control capability per dollar. It's a used PLC CPU, but it's part of the DirectLOGIC 205 family and brings serious specs: 30.4K words of internal memory, support for up to 16 independent PID loops, over 280 RLL/IBox instructions, and native ASCII and Modbus communication. For $130, that's a lot of logic engine for an automation project.
Product notes
Delta DOP-107EG HMI Touch Screen
One reason to pick this one is that it's new, so you can start the project with a component that hasn't been through a previous installation. The Delta DOP-107EG is a touch-screen HMI, meaning it's built for operators to view status, enter setpoints, and control equipment from a digital display. If your panel needs a visual interface, this unit fits that role directly. On the other hand, it's an HMI, not a PLC, so it won't execute ladders or process loops by itself; you'll need a separate controller. Also, its listed price is $190.40, which is higher than the used CPU here. That higher price makes sense if you value new condition, but it's a factor if you're watching your budget.
AutomationDirect D2-260 Programmable Logic Controller CPU
This product stands out for its processing specs at a $130 price. The AutomationDirect D2-260 is a PLC CPU from the DirectLOGIC 205 series, with 30.4K words of total memory, room for up to 16 PID loops, and more than 280 instructions including floating-point and table functions. That makes it a smart choice if your machine logic is the missing piece. The limitation is that it's a used unit, so it carries previous service history even if the part is in working order. It's also only a CPU module, so it needs the supporting backplane and power supply to operate; you can't use it as a stand-alone operator panel. If your need is a touch screen, this won't substitute.
Final choice by use case
Go with the Delta DOP-107EG if you're assembling an operator station and need a new HMI to monitor and control the process. Go with the AutomationDirect D2-260 if you're building the control brain and want a high-memory PLC CPU with a lower price tag. If you're outfitting a full panel, you'll likely end up with both eventually, but for a single buy today, the right pick is the one that closes the biggest gap in your current setup.
