Choosing a machine
Panel PCs come with projected capacitive (PCAP) or resistive touch. Which suits a workshop?
IPC247 engineering Answered on 2026-09-16
Capacitive touch (PCAP): hard glass surface, light touch, multi-touch (swipe, zoom), more resistant to scratches and cleaning chemicals. Drawbacks: water on the surface can cause false touches, and thick gloves are not detected unless the machine has a glove mode.
Resistive touch: responds to pressure, so it works with thick gloves and plastic styluses and is less affected by standing water. Drawbacks: single touch only, the outer film scratches and wears over time, and the image is slightly less clear.
Suggestions by environment:
1. HMI station in a dry workshop with a modern interface: PCAP.
2. Washdown areas, workers in thick rubber gloves: resistive, or PCAP with water-rejection and glove modes.
3. Areas with metal swarf that scratches surfaces: PCAP with toughened glass.
4. Cold stores with insulated gloves: test the actual gloves on a sample unit before choosing.
Many Panel PC lines offer both versions in the same size, making it easy to switch.