If you’re facing issues while connecting your HeatTag to the Schneider Electric EcoStruxure™ Panel Server PAS600, you’re not alone. Many users encounter the message:
“Please unselect ‘Protect Plus’ when you discover the HeatTag. This device is not compatible with ‘Protect Plus’ discovery mode.”
This issue commonly appears during wireless device discovery when Protect Plus is enabled. In this post, we’ll explain why it happens and how to fix it easily.
🧠 What Causes the HeatTag Discovery Issue?
The HeatTag PAS600 Protect Plus issue occurs because the Protect Plus feature is designed for devices requiring an install code for secure pairing. The HeatTag, however, uses a standard wireless pairing method that does not need install codes.
When Protect Plus is enabled, the PAS600 cannot complete the pairing process, resulting in messages like:
“Install code not provided (use selective discovery).”
⚙️ How to Fix the HeatTag Discovery Problem on PAS600
Follow these simple steps to connect your HeatTag successfully:
- Open the PAS600 Web Interface
Access your EcoStruxure™ Panel Server PAS600 through a browser. - Go to the Discovery Section
Under the Wireless Devices tab, find the Discovery settings. - Disable Protect Plus Mode
Toggle off Protect Plus before starting discovery.
(This is the key step to solving the HeatTag PAS600 Protect Plus issue.) - Select Discovery Mode
Choose either Automatic or Selective discovery.- If you still see “install code not provided,” try Selective discovery.
- Click Start
The HeatTag should now appear without errors in the discovered devices list.
🔍 Why Disable Protect Plus for HeatTag?
The Protect Plus feature enhances security for compatible Zigbee or wireless devices that require unique install codes. Since HeatTag devices don’t use this system, the Protect Plus mode blocks their connection.
Turning off Protect Plus ensures smooth communication between your HeatTag PAS600 Protect Plus setup and allows successful wireless discovery.
💡 Pro Tip
If you continue seeing “Incomplete discovery” or “Install code not provided” errors:
- Switch from Automatic to Selective discovery.
- Ensure your HeatTag is powered on and placed close to the PAS600 gateway.
🧩 Conclusion
When setting up your HeatTag PAS600 Protect Plus connection, always make sure to disable the Protect Plus option before discovery. This simple change allows the PAS600 to detect and add your HeatTag successfully, eliminating common pairing errors and ensuring a smooth setup experience.
💬 FAQ – HeatTag PAS600 Protect Plus Connection
Q1. Why does the PAS600 show “Install code not provided”?
Because Protect Plus mode requires an install code for pairing. The HeatTag doesn’t support this method.
Q2. How can I connect my HeatTag to PAS600 successfully?
Disable Protect Plus in the discovery settings and restart the discovery process.
Q3. Is Protect Plus required for HeatTag?
No. HeatTag devices are not compatible with Protect Plus and should be discovered using normal or selective mode.
Q4. What if the HeatTag still doesn’t appear?
Try Selective Discovery, keep the device close to PAS600, and check its power supply.
![Voltage Sag vs Interruption: Causes, Impact, and Fixes A plant can lose a production line from a blink of power, even when the lights come back almost at once. If you've seen a VFD trip, a contactor drop out, or a PLC reset after a split-second dip, you've seen power quality turn into a production problem. The issue is often not a full outage. It's a short voltage event that sensitive equipment can't ride through. Start with the basics, and the failure starts to make sense. What voltage sag and interruption mean A voltage sag is a short drop in RMS voltage below normal, usually to 10% to 90% of rated voltage, for 0.5 cycles up to 1 minute. In a 415 V system, a brief drop to 280 V or 250 V is a sag, not a blackout. Duration matters. If voltage stays low for more than a minute, that is usually undervoltage, not sag. A sag arrives fast, recovers fast, and can still stop a machine. This quick comparison makes the difference easier to see: EventWhat happensTypical durationVoltage sagVoltage drops but does not go to zero0.5 cycles to 1 minuteVoltage interruptionVoltage is zero or near zeroLess than 1 minuteUndervoltageVoltage stays below normal for longerMore than 1 minute An interruption is more severe because supply is lost completely, or almost completely, for less than a minute. If it clears in a few seconds after auto-reclosing, it is a momentary interruption. If it stays off beyond a minute, it becomes a sustained interruption. Why these events happen The most common cause is a fault on the power system. That could be a single line-to-ground fault, line-to-line fault, double line-to-ground fault, or a three-phase fault. When fault current rises, voltage drops across the network until protection clears the problem. If the fault is on your feeder, you may see a sag first and then an interruption when the breaker opens. If the fault is on another feeder from the same substation, your breaker may never trip, but your plant can still see a bus voltage dip. That is why equipment can trip even when "our feeder never opened." Large motor starting is another frequent cause. An induction motor can draw five to seven times full-load current during start. In a weak system, or where the motor is large compared with the transformer, that inrush can create a temporary sag. Transformer energization, capacitor switching, welding loads, arc furnaces, and sudden heavy loading can do the same. Why a tiny dip can stop a large machine > The main motor may ride through a sag, but the control power often won't. Older plants had more electromechanical loads, and many of them tolerated short dips. Modern plants rely on PLCs, VFDs, servo drives, electronic power supplies, sensors, relays, and SCADA. Those devices make automation possible, but many are more sensitive to voltage dips than the motor they control. Massive steel control panels and heavy machinery dominate the floor as overhead lights cast a chaotic, flickering glow. Sharp shadows and sparks suggest a sudden surge in the facility power grid. [https://user-images.rightblogger.com/ai/f382171e-d1b1-4320-b7eb-289d9b53ee27/industrial-factory-power-instability-93e17dc7.jpg] A short sag may not stop a spinning motor because inertia keeps it moving. Still, the contactor coil can drop out, the VFD can detect undervoltage, and the PLC power supply can reset. Once the control chain breaks, the process stops. In process plants, that can mean lost batches, reset time, scrap, labor loss, and delayed delivery. Magnitude and duration both matter. Some equipment can tolerate 80% voltage for five cycles, but not 40% for the same time. That is why ride-through curves matter, and why event recording matters too. Good monitoring tools, such as monitoring power quality with PME 2024 R2 [https://www.interestingautomation.com/schneider-pme-2024-r2/], help capture minimum voltage, duration, and affected phases. Practical ways to reduce voltage sag problems The most cost-effective fix starts with the weak point. If a 200 kW machine trips because a 230 V PLC supply resets, you usually do not need to protect the whole machine. You need to protect the control power. * Specify ride-through performance when buying critical PLCs, drives, relays, and controls. * Add a small UPS, DC backup, or capacitor ride-through module for control power. * Use a voltage sag compensator or dynamic voltage restorer for sensitive process loads. * Apply online UPS systems where transfer time cannot be tolerated. * Consider motor-generator or flywheel systems where short interruptions happen often. * Use static transfer switches only when the two sources are truly independent. Source quality matters too. Utilities reduce events with better protection coordination, faster fault clearing, line maintenance, tree trimming, and feeder automation. On the plant side, grid automation and fault visibility also help, which is why tools for using Easergy T300 for fault detection [https://www.interestingautomation.com/brief-explain-easergy-t300-features-benefits-and-complete-guide/] are relevant in systems that need faster disturbance response. Final thoughts A blink in voltage can do more damage to production than a short outage, because the failure often happens inside the control system before anyone sees a breaker trip. That is the core lesson behind voltage sag and interruption studies. The best fix is rarely the biggest one. Find what actually trips, measure how deep and how long the event lasts, and protect the most sensitive part first. A brief dip should not turn into hours of downtime.](https://www.interestingautomation.com/wp-content/uploads/2026/05/Voltage-Sag-vs-Interruption-Causes-Impact-and-Fixes-150x150.jpg)
