The Robato Andon Tower Light System provides instant visual alerts across your production floor. Using red, yellow, green or multi-colour stack lights, operators and supervisors can quickly identify machine status, breakdowns, material shortages or quality issues.
Available in wired, WiFi, and RF wireless models, the system integrates seamlessly with PLC, sensors, Andon software, OEE, and downtime monitoring.
Ch.02What it signals
Andon tower lights (also known as stack lights) are multi-colour visual indicators mounted on machines and production lines. Each colour represents a machine or process condition:
Buzzer module
Optional buzzer or siren modules add audio alerts for critical conditions.
Five tiers · one per machine conditionPoint at a tier to light it
Ch.03Tower light types
Choose from wired, WiFi, RF wireless and integrated button options.
Type 01 / 04Wired Tower Lights (PLC Controlled)
Industrial stack lights connected directly to PLC digital outputs.
Type 02 / 04Wireless Tower Lights (WiFi)
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WiFi-based lights controlled through the Robato Gateway & Software.
Type 03 / 04RF Wireless Tower Lights
Long-range wireless tower light ideal for large plants.
Type 04 / 04Tower Lights with Andon Buttons
Ch.04Andon button kits
Type 04 / 04
Combined base unit with integrated push buttons:
014 Button Andon Tower Device and 4 Tower Stack Light
025 Button Andon Tower Device and 5 Tower Stack Light
Ch.05Key features
Everything you need for visual machine status indication
Multiple colour options for different status indicators.
Visible from long distances.
Audio alerts for critical conditions.
Flexible connectivity for any setup.
Multiple control methods supported.
Supports escalation workflows.
Real-time dashboards on large screens.
Count-based alerts from sensors.
Flexible deployment options.
Ch.06Integrations
The tower light system integrates with multiple factory solutions:
It integrates with Andon System, Andon Monitoring Software, Downtime Monitoring, OEE Monitoring and Production Counters.
PCs & Smart TVs
Smart dashboards display tower light alerts in real time on PCs and Smart TVs.
Ch.07Specifications
Ch.08Industries
Ch.09Questions
Still weighing it up? Talk it through with our team.
+61 478 251 187An industrial signalling system using coloured stack lights to indicate machine status, downtime, alerts or operator calls.
Yes. Robato provides PLC-wired, WiFi, and RF wireless tower light systems.
Yes. PLC digital outputs can control tower lights through relays or direct input modules.
Yes. The tower lights integrate with Andon Software, OEE Monitoring and Downtime Monitoring.
Yes. 3-color and 5-color stack lights are available with optional buzzers.
Yes. RF and WiFi-based wireless lights provide industrial-grade reliability even in noisy environments.
Yes. They can be mounted on CNC, injection moulding, textile machines, assembly lines, and packaging lines.
Yes. Optional buzzer/siren modules can be added for audio alerts.
Yes. Smart dashboards display tower light alerts in real time on PCs and Smart TVs.
Yes. Tower lights can activate based on production count thresholds, downtime events or machine logic.
Ch.10Upgrade
Combine Andon System, Andon Monitoring and the Robato Tower Light System for complete shop-floor visibility.
