S7 PLC HMI Lite

S7 PLC HMI Lite turns your Android phone or tablet into an HMI panel for Siemens S7 PLCs. Connect over WiFi and monitor and control your machine in real time — a free way to try the full S7 PLC HMI experience.

SUPPORTED PLCs
• Siemens S7-1200, S7-300 and S7-400
• Direct connection over TCP/IP (WiFi) — no gateway needed
• Use a non-optimized DB (S7-300/400 compatible) with full access

OBJECT TYPES
• Simple object (bit or analog value: Byte/Word/Int/DWord/DInt/Real)
• Drive, Drive with local mode, Drive – two directions
• Dumper, Valve (each with local mode)
• Button (pulse) – momentary command
• Alarm with acknowledge – blinks until acknowledged
• Mode selector – Off / Auto / Manual
• Level bar – analog level indicator with scale
• Value with trend – live curve with a 1 / 5 / 15-minute window

KEY FEATURES
• Modern Material Design 3 interface
• Clear object list with live states and connection status
• Object control from a bottom sheet with large buttons
• Dark mode and system colors (Material You)
• App language switchable right from the menu – 9 languages incl. Dutch
• Optional analog value limits – out-of-range shown in red
• PLC diagnostics – RUN/STOP state and CPU info
• Graphic mode – place objects on your own background image and operate from a custom screen

Need more than one PLC? Move up to the full S7 PLC HMI for PLC groups, object management and backup/restore.

IMPORTANT: For the S7-1200 use a standard (non-optimized) DB and enable full access in the block protection settings.