Choosing between a full PLC and HMI starter package and a replacement keypad/touchpad kit can feel like comparing two different jobs, but both could be exactly what a control panel needs. The real question is whether you are building fresh or repairing what is already on the line.
The IDEC FC6A PLC & HMI starter kit is listed at USD 1,185.12. The Siemens KTP700 membrane keypad and touchpad repair kit is listed at USD 181.39. That $1,003.73 spread tells you where each one fits: the IDEC package is a complete control build, while the KTP700 kit is a focused service part.
Quick verdict
Pick the IDEC FC6A starter kit when you need a new programmable controller with HMI capability, bundled software, a 60W power supply, and cables for a fresh panel build. Pick the KTP700 repair kit when you already own a KTP700 operator panel and only need to restore the membrane keypad and touchpad.
At a glance
| Consideration | IDEC FC6A PLC & HMI Starter Kit | KTP700 Membrane Keypad + Touchpad Repair Kit |
|---|---|---|
| Listed price | USD 1,185.12 | USD 181.39 |
| Condition | New | Used |
| What you get | PLC & HMI starter kit with software, power supply, and cables | Membrane keypad and touchpad repair kit |
| Base I/O | 16 I/O with 9 digital inputs and 7 relay outputs | Replacement part for an existing HMI |
Where each product wins
- The IDEC FC6A wins for new control panels. It arrives as a ready-to-wire starter system with the PLC, HMI, software, power supply, and cables in one bundle, plus an Ethernet and RS-232C/RS-485 interface.
- The KTP700 repair kit wins for maintenance. If a KTP700 operator panel already sits in your cabinet, this used repair kit gives the worn keypad and touchpad a much lower-cost path back to service.
Product Notes
IDEC FC6A PLC & HMI Starter Kit
Here's why this is my pick for a new build: the package is built around a Pentra PLC with 16 I/O in the base unit, broken down as 9 digital inputs and 7 relay outputs, and it is designed to expand. The bundle also includes software, a 60W power supply, and cables, so you aren't piecing together a control cabinet from multiple orders. Ethernet plus RS-232C/RS-485 is on board, and Modbus RTU master/slave support is part of the spec. The limitation is the form factor: this is a complete starter system, so it doesn't make sense if your only task is replacing a worn keypad on an existing operator panel.
Siemens KTP700 Membrane Keypad + Touchpad 6AV2123-2GB03-0AX0 HMI Repair Kit
If you already run a KTP700 operator panel, this is a practical maintenance buy. The title identifies it as a membrane keypad and touchpad repair kit, not a full HMI, so it fits a specific repair slot. It is listed as used and comes from China, which reinforces its replacement-part role. The limitation is that it is only the keypad and touchpad: you still need the original KTP700 unit and the rest of the HMI assembly for it to be useful. Depending on where you are, import duties or taxes may also add to the cost. If you don't already have compatible KTP700 hardware, this kit will not stand in for a complete PLC and HMI.
Final choice by use case
- Building a new control panel: Go with the IDEC FC6A PLC & HMI starter kit. It is the complete package, from PLC and HMI to software, power supply, and cables.
- Restoring an existing KTP700 operator panel: Go with the KTP700 membrane keypad and touchpad repair kit. It targets the part that actually wears out.
- Adding a full HMI to a new PLC: The IDEC starter system is the complete, expandable solution; the repair kit only covers the keypad and touchpad for a unit you already have.
