is a specialized, PC-based software package developed by , India's first indigenous PLC manufacturer, primarily used for programming and debugging their Core Functionality & Programming Ladder Logic Programming
: The software is primarily used to create and edit control logic using Ladder Diagrams (LD) , a standard visual programming language for PLCs. PC-Based Environment
: Designed to run on IBM-compatible PCs (minimum XT/AT architecture), providing a more robust alternative to the PG-308 handheld programmer. Debugging Tools
: It serves as a comprehensive tool for real-time debugging and monitoring of PLC operations. Key Measurement & Process Features
The software enables the configuration of advanced hardware features within Messung Micro PLCs, such as: Frequency Measurement
: Monitoring the rate of incoming pulses for speed or flow calculations. Pulse Catch & Output
: Recognizing critical high-speed events and providing accurate pulse outputs for motion control. Real-Time Clock (RTC)
: Setting up time-based control sequences for automated scheduling. High-Speed Counters
: Utilized for time-critical control and precise counting in manufacturing. Target Hardware & Compatibility XMP8 and Micro Series
: Directly supports older but highly reliable models like the XMP8 Micro series Nexgenie 4000 : Newer iterations, such as DOX-Mini Plus v2.03
, are used for programming Nexgenie 4000 series PLCs, typically requiring a Windows XP environment and specific 8-pin mini-DIN cables. Pejawar Electronics Typical Industrial Applications
DOX-Mini and its associated PLCs are optimized for entry-level and compact automation tasks, including:
: Industrial washing machines, welding machines, and screen printing machines. Material Handling
: Small conveyors and SPM (Special Purpose Machine) control. Process Control
: Generator control, boiler automation, and hydraulic press management. Messung Industrial Automation
For modern applications, Messung has largely transitioned to newer platforms like the NX-ERA Xpress which utilizes CODESYS (IEC 61131-3) for programming. Messung Systems Pvt Ltd snippet or a wiring diagram for a Messung PLC? MESSUNG Nexgen 4000 PLC Programming Software
Mastering Precision: Why Dox Mini is the Best Software for PLC Measurement
In the world of industrial automation, the bridge between Programmable Logic Controllers (PLCs) and actionable data is often where the most critical work happens. If you are searching for the dox mini software messung plc best solutions, you likely already know that precision and reliability aren't just goals—they are requirements.
The Dox Mini software suite has emerged as a cornerstone for engineers working with Messung PLCs. Here is an in-depth look at why this combination is widely considered the industry standard for measurement and control. Understanding the Dox Mini Ecosystem
The Dox Mini is more than just a programming interface; it is a specialized environment designed specifically for the unique architecture of Messung hardware. While many software packages attempt a "one size fits all" approach to industrial automation, Dox Mini focuses on optimizing the specific communication protocols and memory mapping found in Messung units. Key Features of Dox Mini:
Intuitive Measurement Scaling: One of its strongest suits is the ease with which it handles raw analog signals. Converting 4-20mA or 0-10V signals into real-world units (like temperature, pressure, or flow) is streamlined, reducing the margin for calculation errors.
Real-Time Diagnostics: The software provides a live "window" into the PLC. For measurement tasks, this means you can see signal fluctuations in real-time, allowing for instant calibration.
Compact Footprint: True to its name, the "Mini" software is lightweight. It doesn't require a high-end workstation to run, making it ideal for field service laptops and on-site troubleshooting. Why it is the "Best" for Messung PLCs
When engineers label Dox Mini as the "best," they are usually referring to compatibility and stability.
Seamless Integration: Since Messung designed the hardware and the software in tandem, there are no "handshake" issues. Every register, timer, and counter is mapped perfectly.
Legacy Support: Messung PLCs are known for their incredible longevity. Dox Mini provides the necessary bridge to maintain and measure data from older systems that newer, "generic" software packages often overlook.
Accuracy in Measurement: For high-stakes measurement tasks—such as those in pharmaceutical or automotive manufacturing—the Dox Mini software ensures that the data polled from the PLC reflects the physical state of the machine without lag or jitter. Optimizing Your Measurement Setup
To get the most out of your Dox Mini software, consider these best practices:
Filter Your Inputs: Use the software’s internal logic to average out noise in your measurement signals. This ensures your PLC isn't reacting to "ghost" spikes in data.
Regular Calibration Cycles: Even the best software depends on accurate hardware. Use Dox Mini’s diagnostic tools to check for sensor drift at regular intervals.
Backup and Compare: Use the software’s "Compare" feature to ensure that the code running on the factory floor matches your master measurement parameters. Conclusion
The Dox Mini software remains the definitive choice for those utilizing Messung PLCs for complex measurement tasks. Its blend of simplicity, direct hardware integration, and robust diagnostic capabilities makes it a top-tier tool for engineers who cannot afford to be wrong.
Whether you are setting up a new production line or maintaining a legacy system, Dox Mini provides the stability and precision required for modern industrial excellence.
DOX-Mini is a specialized PC-based software package used to program, monitor, and debug legacy Messung Micro PLCs, such as the Nexgen 4000 and XMP series. Designed for simplicity in compact industrial applications, it allows engineers to manage automation logic through a standard ladder diagram environment. 🛠️ Key Features of DOX-Mini
Ladder Diagram Programming: Provides a graphical interface for developing control logic using standard ladder logic elements.
Real-Time Monitoring: Includes a monitor mode to view the live status of inputs, outputs, flags, registers, timers, and counters while the PLC is running. Debugging Tools:
Force Mode: Manually force inputs or outputs to specific states for testing.
Breakpoints & Step Mode: Pause execution at specific points or execute logic one step at a time to isolate errors.
Communication: Connects to the PLC via RS232 or RS485 serial interfaces.
Compact Compatibility: Primarily used for the Messung XMP series, which features pulse catch inputs, high-speed counters, and frequency measurement for small automation processes. 🚀 Best Practices for Messung PLCs
To get the best performance out of DOX-Mini and your Messung PLC, follow these programming standards:
Use Structured Logic: Break the program into logical segments (e.g., main block, user-defined function blocks) to improve maintainability.
Meaningful Naming: Use intuitive variable names and tags for easy identification by other engineers.
Documentation: Maintain clear comments within the ladder logic to explain complex sequences or specific "latched" inputs with time delays. dox mini software messung plc best
Testing: Use the software's force and step modes to verify logic against the original system specifications before full deployment. 🔄 Modern Alternatives
While DOX-Mini is essential for maintaining older Messung hardware, the company has transitioned to more advanced platforms for modern projects:
The text "dox mini" refers to DOX Mini Plus, the legacy programming software for older Messung Nexgen 4000 PLCs.
Modern Messung automation systems have moved toward the NX-ERA series, which uses more advanced, standardized software environments. Messung PLC Software Overview
Messung's software strategy varies by the age and series of the controller: Legacy Nexgen 4000 Series:
Software: DOX Mini Plus (specifically version v2.03 or later for older Nexgen 4000 units).
Compatibility Note: Often requires a Windows XP PC and a specific programming cable (9-pin D-type female to 8-pin mini-DIN round connector). Modern NX-ERA Series:
Software: Uses an integrated programming and configuration environment based on the IEC 61131-3 international standard.
Target Devices: NX-ERA PREMIUM and NX-ERA XPRESS (Micro PLC). Where to Find Software
Official Support: For current products like the NX-ERA Xpress, software and technical documentation are available through the Messung Industrial Automation official site.
Legacy Assistance: Because DOX Mini is older, community forums like PLCTalk.net are common resources for finding specific version support or troubleshooting. Comparison of Messung PLC Tiers Best Use Case Key Software/Standard NX-ERA PREMIUM Complex processes & high-performance lines IEC 61131-3 / CODESYS-based NX-ERA XPRESS Entry-level automation / Industry 4.0 IEC 61131-3 XM-PRO 10 Versatile, compact manufacturing control Proprietary / Flexible programming Nexgen 4000 Maintenance of existing legacy systems DOX Mini Plus MESSUNG Nexgen 4000 PLC Programming Software - PLCTalk.net
Unlocking Industrial Efficiency: A Guide to Dox Mini & Messung PLCs
When it comes to compact automation, the combination of Messung PLCs and the Dox Mini software remains a reliable choice for small-scale industrial control. Whether you are managing conveyors, industrial washing machines, or welding equipment, getting the most out of your measurement and logic tasks requires a solid understanding of this dedicated ecosystem. What is Dox Mini?
Dox Mini is a PC-based software package specifically designed for programming and debugging Messung’s micro PLC series, such as the XMP8 or XMP15. Unlike the PG-308 handheld programmer, Dox Mini allows users to develop their logic—typically via Ladder Diagrams—on a standard computer, providing a more visual and comprehensive environment for testing and troubleshooting. Best Practices for Measurement and Logic
To ensure your Messung PLC provides accurate "messung" (measurement) and efficient control, follow these industry best practices:
Leverage Special Features: Modern micro PLCs from Messung include built-in tools like high-speed counters for frequency measurement and pulse catch inputs. Use these for time-critical tasks instead of standard digital inputs to avoid missing rapid events.
Structured Documentation: A clean program is a manageable one. Keep your ladder logic organized with clear comments for every block. Documentation is the difference between a quick fix and hours of downtime when troubleshooting.
Connectivity Integrity: Connection to your PLC is usually handled via RS232 or RS485 interfaces. Ensure your baud rates and parity settings on the Dox Mini software match the PLC hardware exactly to prevent data loss or connection drops.
Version Control: Always maintain a changelog. Store your source code in a centralized, archived format (like a ZIP file) and document who made changes and why. Moving Toward Industry 4.0 While Dox Mini is a staple for legacy systems, Messung has evolved with newer series like the NX-ERA Xpress
. These modern controllers are designed for Industry 4.0, offering IoT connectivity and expanded I/O via CANopen, while still maintaining the compact footprint that made the micro series famous.
For those looking to optimize their current setup, you can download Dox Mini to start refining your logic today.
DOX-Mini is a legacy, DOS-based software package specifically designed for programming and debugging Messung's older Micro PLC series, such as the XMP 15. While it was the standard tool for early Messung hardware, modern industrial automation has shifted toward more powerful, Windows-compatible environments like XMPS-2000 or CODESYS for newer Messung controllers. Key Features of DOX-Mini
Programming Environment: Supports standard Ladder Diagram (LD) programming.
Primary Functions: Used for project file creation, program editing, and compiling.
Debugging Capabilities: Offers online monitoring of project status and the ability to "force" values to variables during testing.
Hardware Compatibility: Runs on IBM-compatible PCs (minimum XT/AT) and connects via serial ports (RS232 or RS485). Why Upgrade? (The Best Modern Alternatives)
If you are working on a new application, Messung now recommends modern platforms that offer better usability and Industry 4.0 integration: XMPS-2000 Software: Best For: Messung XMPRO-10 series PLCs.
Features: Windows-based, intuitive hardware configuration, and robust online diagnostics. CODESYS (IEC 61131-3): Best For: Messung NX-ERA Xpress and Premium series.
Features: Supports all five IEC languages, includes a built-in simulator, and is ready for MQTT and OPC-UA. How to Use DOX-Mini (Quick Setup)
Installation: Run the setup on a PC. Note that it may require a legacy environment or DOSBox on modern Windows versions.
Connection: Use an RS232 or RS485 cable to link the PC to the PLC's communication port.
Configuration: In the software, go to Communication > Setup to match the COM port, baud rate, and protocol with your PLC.
Monitoring: Use the Monitor icon to visually track ladder logic status and real-time field values.
For reliable hardware and the latest software tools, you can explore the full range of controllers at Messung Industrial Automation. Dox Mini Plc Software Download - Facebook
DOX Mini is the legacy PC-based programming software for Messung Micro PLC systems, specifically the XMP8 Series. While modern Messung controllers like the NX-ERA Xpress use CODESYS-based environments, DOX Mini remains the primary tool for maintaining and troubleshooting older XMP hardware. Key Specifications & Features System Compatibility: Primarily used for the , , and micro PLC models.
Programming Language: Supports standard Ladder Diagram (LD) logic, which is an intuitive graphical method for industrial control.
Core Functionality: Includes documentation for System Bits & Words, jump commands, and Function Blocks.
User Environment: Originally a DOS-based software, it is often described as tedious by modern standards but reliable for field-level programming of legacy equipment.
Diagnostics: Offers real-time Online Monitoring and debugging to track PLC variables and troubleshoot physical hardware issues. Hardware & Connectivity Requirements
To effectively use DOX Mini for "messung" (measurement) or automation tasks, you typically require:
Programming Cable: A dedicated PC-to-PLC communication link. Manual Reference
: Documentation No. 6044 is the specific guide for DOX Mini software operations. Power Adaptor: Certain models, like the
, may require an external power adaptor during the programming phase. Best Use Cases is a specialized, PC-based software package developed by
DOX Mini is the "best" (and often only) choice for legacy system maintenance where existing Messung XMP hardware is installed. For new projects, Messung now promotes the NX-ERA Xpress series, which offers high-speed processing, IoT capabilities (MQTT/OPC-UA), and modern web server integration.
Are you looking to download the legacy DOX Mini software or are you considering an upgrade to a modern Messung PLC system? Messung Plc Software Programming Manual
Complete Guide to DOX Mini Software for Messung PLCs The DOX Mini PLC Software is a specialized, lightweight programming and diagnostic tool designed specifically for older-generation industrial automation systems, including the Messung Nexgen 4000 series. For decades, Messung has remained a dominant name in indigenous automation, and its legacy hardware depends on the reliability of the DOX Mini ecosystem to perform critical logic adjustments and live measurements. 🛠️ Key Technical Features of DOX Mini
Ladder Diagram Programming: Provides a graphical environment to write, modify, and manage PLC logic.
Real-Time Data Measurement: Allows engineers to capture and view input/output states, register contents, and counter values in real time.
Dedicated Diagnostics: Includes step-by-step execution modes, physical breakpoint inserts, and real-time variable forcing.
Legacy Connectivity: Supports serial data transfer using RS232 and RS485 communication protocols. 🖥️ System Requirements for DOX Mini
Due to its design era, the DOX Mini environment performs optimally on older hardware configurations. It can be bridged to modern devices using specific setups. Requirement Specification Operating System
Windows XP (Native), Windows 7, or VM emulation for Windows 10/11 Interface Port
Dedicated 9-Pin D-Type Female Serial to 8-Pin Mini-DIN round connector Processor Any basic x86 or x64 architecture RAM Minimal (typically under 512 MB required) 🔍 Best Measurement & Debugging Workflows
To extract the best performance from your Messung PLC using DOX Mini, you must utilize its internal diagnostic utilities effectively. 1. Enable Monitor Mode
The software allows you to read the immediate state of memory flags, timers, and input registers directly from the CPU. This acts as a software-based measurement tool to verify that real-world sensor data translates accurately into system variables. 2. Utilize Force Mode
When physical field sensors are unavailable or disconnected, use DOX Mini's Force Mode. This overrides physical input or output points, enabling engineers to dry-test downstream relays and solenoids. 3. Step & Break Mode
For complex loops and step-logic sequences, you can insert program breakpoints. The logic pauses at the designated step, allowing you to manually step through instructions to identify timing issues or race conditions. 💡 Troubleshooting & Best Practices
Virtual Machine Setup: Since DOX Mini runs natively on Windows XP/7, use a virtual machine (such as Oracle VirtualBox) if your primary computer runs Windows 10 or 11.
Cable Pinouts: Ensure you use the exact 8-pin Mini-DIN connector for the Messung PLC port. Generic serial-to-USB adapters can introduce timing latency that breaks software communication.
Modern Alternatives: For newer Industry 4.0 applications, consider transitioning to modern platforms like Messung NX-ERA Series or newer XM-PRO 10 controllers programmed via XMPS-2000. If youg., Nexgen 4000, Nexgenie) Your PC operating system The specific measurement issue you are troubleshooting
I can provide the exact steps to configure your communication and resolve software errors. Dox Mini Plc Software Download - Facebook
Title: Mastering the Dox Mini: How to Get the Best PLC Measurement (Messung) Results
Intro: Why Software Matters in PLC Measurement When you are working with a Messung PLC (or any industrial controller), the hardware is only half the battle. The real magic—and the real headaches—happen in the software. If you’ve been searching for how to get the best measurement data out of your Dox Mini software, you’ve hit the right guide.
Whether you are troubleshooting a生产线 or fine-tuning a new build, here is how to optimize the Dox Mini environment for precise PLC messung (measurement).
1. Know Your Tool: What is Dox Mini? Dox Mini is typically the lightweight HMI or programming interface used to communicate with compact Messung controllers. Unlike bloated legacy software, Dox Mini aims for speed. However, "fast" doesn't mean "easy."
To get the best measurement data, you first need to confirm your communication drivers. Check that your PC is talking to the Messung PLC via RS232, RS485, or Ethernet. If the "Online" light isn't green in Dox Mini, your messung (measurement) will be zero.
2. The Setup for Accurate "Messung" In German industrial terms, Messung means measurement. In your Dox Mini software, this refers to how you sample analog inputs (like temperature, pressure, or flow).
To get the best reading:
3. Troubleshooting "Dox Mini" Lag Users often complain that the software feels slow when polling many data points. Here is the fix for the best performance:
4. Best Practices for Messung PLC Programming If you are writing the ladder logic (LD) inside Dox Mini:
Final Verdict Is Dox Mini the best software for Messung PLC measurement? For small to mid-sized machines, yes. It is lightweight and direct. For massive factory lines, you might need the full Messung suite.
Pro Tip: Always back up your .dox project file before changing any measurement scaling. One wrong divisor and your "messung" becomes "mess."
Have you struggled with scaling analog inputs in Dox Mini? Drop a comment below or contact Messung support for the latest driver updates.
Keywords: Dox Mini software, Messung PLC, best measurement settings, PLC messung, industrial automation.
To minimize traffic on the network, avoid sending raw, high-frequency sample streams from Dox Mini to the PLC. The PLC is not a database; it is a controller.
“Dox mini software messung plc best” is not about replacing your engineering workstation. It is about empowering the 80% of measurement tasks that are too small for big tools but too critical for sticky notes.
The best solution today is a read-only, self-documenting, command-line-friendly measurer that outputs plain text and PDFs – not another database. For PLC engineers, that means more time analyzing loops, less time wrestling with software licenses.
Want a ready-to-run script? A reference implementation in Python (<150 LOC) is available upon request.
The Legend of the Dox Mini
The server room was a tomb of whirring fans and blinking amber lights, the unmistakable smell of overheating electronics hanging heavy in the air. Karel stood before the monolithic cabinet of the main assembly line PLC, his laptop cable dangling uselessly from his hand.
"It’s dead," Karel muttered, wiping grease from his forehead. "The proprietary interface card is fried. I can’t access the logic, and the line is down. Management is having a meeting in the parking lot to decide who to fire."
Next to him, the senior engineer, Silas, didn't flinch. He was hunched over a ruggedized, battered metal box the size of a thick paperback book. It was connected to the PLC via a simple, twisted-pair wire, not the expensive fiber optic link Karel had been using.
"Diagnostics via the main bus is for people who trust the manual," Silas grunted, his fingers dancing over the small, backlit keypad of the device. "The manual was written by lawyers, not engineers."
"What is that thing?" Karel asked, peering at the scratched logo on the device’s casing. It read: DOX Mini.
"Ignore the name. Sounds like a vacuum cleaner, but it’s the best-kept secret in automation," Silas said. "It’s lean software on dedicated hardware. No bloat, no Windows updates in the middle of a cycle, no thirty-second boot times."
Karel watched as Silas navigated a stark, text-based menu. While Karel’s high-end laptop required a suite of bloated, gigabyte-heavy software just to handshake with the PLC, the Dox Mini was already speaking the machine’s language. Scan Time: Don’t set your scan cycle too fast
"See that?" Silas pointed to a fluctuating number on the tiny LCD screen. "That’s the voltage drop on the input rail."
Karel squinted. "The software on my laptop said the input rail was nominal."
"Your software asks the PLC to report its health. If the sensor responsible for reporting the health is broken, the software lies to you," Silas tapped the side of the Dox Mini. "This thing performs a physical Messung—a raw measurement. It bypasses the logic layer and reads the state of the registers directly. It doesn't trust the PLC; it interrogates it."
Karel watched the numbers jitter. "Look at that spike. Every three seconds."
"The conveyor belt tensioner," Silas realized aloud. "It's causing a feedback loop into the main processor."
Silas typed a rapid command sequence into the Dox Mini. He wasn't just reading; he was writing. He isolated the input channel, dampening the signal sensitivity by a fraction of a millivolt. It was a hack, a digital band-aid applied directly to the hardware’s nervous system.
"Try the start sequence now," Silas said.
Karel hit the green button on the main console. The massive motors hummed to life. The amber lights on the server rack flipped to a soothing green. The line was moving.
Karel stared at the unassuming grey box. "I need to get the installation package for that Dox Mini software. Is it on the company intranet?"
Silas unplugged the device and slipped it into his pocket. "There is no installation package, kid. You don't run this on a laptop. The software is the hardware. That’s why it’s the best. It doesn't care about your operating system. It cares about the signal."
He clapped Karel on the shoulder. "Leave the big suites for the paperwork. When you need to know the truth, use the Mini."
As they walked out of the server room, the cooling fans settling into a quiet rhythm behind them, Karel realized that in a world of bloated, over-complicated tech, the smallest tool often carried the biggest weight.
software is a legacy programming and debugging package specifically designed for Messung Micro PLCs , such as the Nexgenie 4000
(Nexgen 4000) series. It serves as a PC-based alternative to the
handheld programmer for developing industrial automation logic. Core Functionality
DOX-Mini provides a standard development environment for entry-level automation tasks. Its primary capabilities include: Ladder Logic Programming
: Creating, editing, and saving control programs using ladder diagrams. PLC Communication
: Uploading programs to and downloading them from the PLC hardware. Real-time Debugging
: Monitoring and modifying the status of inputs, outputs, timers, counters, and registers while the system is running. Testing & Simulation
: Forcing I/O states for hardware testing and simulating programs on the PC without a physical PLC connection. Documentation
: Printing ladder programs and project documentation for maintenance records. Technical Specifications
As a legacy utility, DOX-Mini has specific system and hardware requirements: System Compatibility : Designed for IBM Compatible PCs
(minimum XT/AT architecture). While older, it is reported to run on Windows XP through Windows 10. Communication Interface : Typically connects via
ports. A specific programming cable (9-pin D-type female to 8-pin mini DIN) is often required. Software Licensing
: It is often distributed as an open-source project under GPL or MIT licenses, making it accessible for maintenance of older systems. Hardware Context The software is most commonly associated with Messung's Micro PLC line, which features: I/O Options
: Integrated digital and analog inputs (sink/source selectable) and relay or DC outputs. Special Features
: Pulse catch inputs, frequency measurement, and built-in Real-Time Clocks (RTC). Applications
: Widely used in small Special Purpose Machines (SPMs), conveyors, industrial washing machines, and generator control. Note for Modern Systems : For newer Messung hardware like the
series, the company has transitioned to more modern environments such as Codesys-based Messung Industrial Automation Further Exploration Messung NX-ERA Xpress Brochure for technical details on modern micro PLC alternatives. Messung XMPro-10 series
for information on current high-speed PLC models and their software. Refer to the Micro PLC Instruction Manual
for historical documentation on the DOX-Mini and PG-308 systems. Are you looking to
the legacy DOX-Mini software for an existing system, or are you to a newer Messung PLC model? Dox Mini Plc Software Download - Facebook
The Dox Mini software is not just a ladder editor; it is a full-fledged automation suite tailored for Messung’s processor architectures. Here is why it is considered the best in its class.
One standout feature that elevates the dox mini software is its built-in simulator. You can test your entire Messung PLC program on your laptop before downloading a single byte to the hardware. This reduces machine downtime risk by 60%. The simulator supports:
Standard PLC workflows (Siemens TIA Portal, Rockwell Studio 5000, CODESYS) are not optimized for ad-hoc measurement documentation:
Example A — Simple Modbus RTU mapping (assumed)
Example B — Scaling in PLC (IEC-style pseudocode)
raw = ModbusReadInput(5,100,1)
scaled = raw / 32767.0 * 1000.0 // counts → grams
if scaled > 900.0 then
SetCoil(5,1,TRUE) // turn on DO1 alarm
end_if
Example C — Fast pulse/frequency input for flow
Even with the best software, mistakes happen. Here are solutions to frequent issues:
Problem: The Messung PLC goes into Stop mode randomly. Solution: Use Dox Mini’s "Stack Overflow" detection. Go to Project Settings > Watchdog. Increase the watchdog time if your program has many math operations.
Problem: Analog inputs read erratic values. Solution: In Dox Mini, enable the "Digital Filter" for the specific analog channel. Set a filter constant of 10ms to stabilize the signal.
Problem: Forgetting to save retained values after a power cycle.
Solution: Mark your critical variables as VAR RETAIN. Dox Mini will store them in the battery-backed memory. Pro tip: Use VAR PERSISTENT for data that must survive a firmware update.
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