Logic & Relay

Which PLC or HMI Should You Pick? 4 Touchscreen Automation Panels From $95.99 to $685.35

From a Delta HMI to a Siemens SIMATIC KTP700 and a 5-inch all-in-one PLC, these four industrial touch panels span $95.99 to $685.35. Here's how to match price, brand, and controller platform to your automation job.

Last updated Aug 17, 2026

Choosing between PLCs and HMIs for an industrial touchscreen panel starts with one problem: some of these units are just operator interfaces, while others combine the controller and the screen in a single box. The four touchscreen automation panels below have listed prices that run from $95.99 to $685.35, so the real decision is less about budget alone and more about which platform, part number, and control approach matches the rest of your machine.

Quick take

  • Choose the 5-inch all-in-one PLC+HMI if you want 9 inputs, 8 relay outputs, and free multi-language HMI software in one unit.
  • Choose the Delta DOP-107EG HMI if you want a new Delta touchscreen built around the Automate platform.
  • Choose the Siemens SIMATIC KTP700 Touch Screen if your controller platform is S7/300 and you want a Siemens part number.
  • Choose the Siemens HMI Touch Panel 6AV6641-0CA01-0AX1 if you want the most complete part traceability, including GTIN and UPC.

Listed price comparison

ProductListed pricePrice bar
PLC Controller Programmable Logic Controller 5-Inch HMI Touch Screen$95.99
Delta DOP-107EG HMI Touch Screen$190.40
Siemens SIMATIC HMI KTP700 Touch Screen$614.00
Siemens HMI Touch Panel 6AV6641-0CA01-0AX1$685.35

Decision matrix

If your priority isBest matchWhy
A single unit that runs both the logic and the operator screenPLC Controller Programmable Logic Controller 5-Inch HMI Touch Screen5-inch touchscreen with 9 inputs, 8 relay outputs, and 2-axis pulse output at 100 kHz
A Delta part for an existing Delta control setupDelta DOP-107EG HMI Touch ScreenNew unit on the Automate platform, made in Taiwan
Siemens SIMATIC integration with an S7/300 controllerSiemens SIMATIC HMI KTP700 Touch ScreenSIMATIC HMI with AC current type and firmware V02 20
A traceable Siemens touch panel for procurementSiemens HMI Touch Panel 6AV6641-0CA01-0AX1Siemens Touch Panel with MPN, GTIN, UPC, and Model Simatic

Product notes

Delta DOP-107EG HMI Touch Screen

Delta DOP-107EG HMI Touch Sreen New One Expedited Shipping DOP107EG #S

The DOP-107EG is the direct HMI pick if your control environment already uses Delta automation. It is described as new, made in Taiwan, and placed on the Automate controller platform, so it fits neatly in a Delta-oriented cabinet. The model number gives you a concrete reference for your own parts list, and the touchscreen is the operator-facing piece. The main limitation to weigh is the platform tie: the Automate controller platform is the basis of this part, so if your existing controls sit on a different Delta or third-party platform, you would be introducing a second automation environment rather than simplifying one.

Siemens SIMATIC HMI KTP700 Touch Screen

6AV2123-2GB03-0AX0 Siemens SIMATIC HMI KTP700 Touch Screen

This is the Siemens SIMATIC HMI to consider when your controller platform is already S7/300. The title, model number 6AV2123-2GB03-0AX0, and country of origin Germany all point in the same direction, and the firmware revision V02 20 plus AC current type give you two specific points to compare against your machine's setup. This is a more complete Siemens part for someone who wants an HMI that matches a SIMATIC control architecture rather than a generic replacement. The limitation is the fit: because the meaningful details are the platform and firmware revision, your decision should be based on whether your S7/300 environment matches those two parameters.

PLC Controller Programmable Logic Controller 5-Inch HMI Touch Screen

PLC Controller Programmable Logic Controller 5" HMI Touch Screen For Industrial

This is the integrated option: one 5-inch unit that works as both HMI and PLC. It has 9 inputs and 8 relay outputs, supports 2-axis pulse output at 100 kHz for stepper or servo drives, and comes with free multi-language HMI software. The supplier also lists compatibility with FX1S-type PLC programs via GX Works2/Developer, which makes it attractive for small positioning, packaging, or labeling machines. The part number 17MR-F500-FX-A is the strongest reference point. The limitation: the part is identified by an MPN rather than a brand series, so your spare-parts planning should be built around that MPN.

Siemens HMI Touch Panel 6AV6641-0CA01-0AX1

6AV6641-0CA01-0AX1 1PCS Siemens HMI Touch Panel Industrial Automation New

This is the most fully specified Siemens part in the group. It is identified as a Siemens HMI Touch Panel on the Simatic controller platform, made in Germany, with manufacturer part number 6AV6641-0CA01-0AX1, a matching MPN, a GTIN of 0662643342918, and a UPC that matches the GTIN. For procurement or maintenance environments that need a traceable part, these identifiers carry a lot of weight. It is listed as Type: Touch Panel and includes a Model of Simatic, which reinforces the Siemens architecture. The trade-off is cost: this panel sits at the top of the listed price range, so it makes sense when exact part identity is the priority.

Final recommendation by use case

  • For a compact machine that needs one box for the controller and the screen, start with the PLC Controller Programmable Logic Controller 5-Inch HMI Touch Screen and its 9 inputs, 8 relay outputs, and GX Works2/Developer compatibility.
  • For a Delta-oriented cabinet, the Delta DOP-107EG HMI Touch Screen gives you a new unit on the Automate platform.
  • For an S7/300-based SIMATIC system, the Siemens SIMATIC HMI KTP700 Touch Screen is the platform match.
  • For procurement or maintenance teams that need MPN, GTIN, and UPC traceability, the Siemens HMI Touch Panel 6AV6641-0CA01-0AX1 is the one to specify.
Products in this article
Delta DOP-107EG HMI Touch Sreen New One Expedited Shipping DOP107EG #SUSD 190.40View on eBay6AV2123-2GB03-0AX0 Siemens SIMATIC HMI KTP700 Touch ScreenUSD 614.00View on eBayPLC Controller Programmable Logic Controller 5" HMI Touch ScreenUSD 95.99View on eBay6AV6641-0CA01-0AX1 1PCS Siemens HMI Touch Panel Industrial Automation NewUSD 685.35View on eBay
Delta DOP-107EG HMI Touch Sreen New One Expedited Shipping DOP107EG #SUSD 190.40View on eBay6AV2123-2GB03-0AX0 Siemens SIMATIC HMI KTP700 Touch ScreenUSD 614.00View on eBayPLC Controller Programmable Logic Controller 5" HMI Touch ScreenUSD 95.99View on eBay6AV6641-0CA01-0AX1 1PCS Siemens HMI Touch Panel Industrial Automation NewUSD 685.35View on eBay

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