In modern industrial environments, scales aren’t just used for weighing — they’re a source of critical operational data. Whether you’re tracking batches, monitoring flow rates, or automating fill processes, connecting your scale to a computer is the first step toward smarter, more efficient operations.
But with so many connectivity options available — from USB and RS-232 to Ethernet, Wi-Fi, and even live Google Sheets integration — how do you know which one is right for your setup?
This guide breaks down every way to connect your Arlyn Scale to a computer or network, with step-by-step explanations and use case recommendations. Whether you’re looking for a simple Excel export or a full automation-ready setup, we’ve got you covered.
USB Connections: Direct & Flexible
USB Cable – Simple and Powerful
USB is the most common and user-friendly connection method for Arlyn Scales. It’s perfect for users who want to plug a scale directly into a nearby PC to collect data in real time.
How it Works:
- Plug a standard USB cable into your scale and PC.
- Launch Arlyn’s free trial USB Remote Software.
- View live weight readings directly on your screen.
- Export data into Excel or Access with a single click.
- Control the scale remotely from your desktop interface.
Key Features:
- Connect up to 10 scales to one computer using a USB hub.
- Compatible with Windows, no additional drivers required.
- Ideal for labs, batching operations, or data audits.
Bonus: You can also export data as a CSV text file to import into any software you use for analysis or recordkeeping.
USB Keyboard Wedge – No Software Required
Don’t want to install any software? Arlyn’s keyboard wedge functionality lets your scale behave like a USB keyboard. When you press PRINT on the scale, the weight data is typed directly into whatever application is active — just like a barcode scanner.
How it Works:
- Connect the scale via USB like you would a keyboard.
- Open any application (Excel, Word, your browser, etc.).
- Place your cursor where the weight should go.
- Press the PRINT button on the scale — data appears instantly.
Why Use It?
- Works with Windows, Mac, Linux, Android, and iOS
- No configuration or driver installation needed
Perfect for:
- Web-based form entries
- Databases with limited import functionality
- On-the-fly manual tracking systems
Great for IT-restricted environments where installing software isn’t an option.
RS-232: Reliable Legacy Communication
RS-232 has been a trusted method of connecting industrial equipment for decades. While modern PCs rarely include serial ports, RS-232 is still widely used in automation systems, PLCs, and embedded hardware environments — and Arlyn Scales fully supports it.
How RS-232 Works:
- The scale sends data via a serial cable using the RS-232 protocol.
- A bi-directional interface allows for both sending and receiving commands.
- Use with printers, PLCs, or custom software systems for automation, batching, or labeling.
Setup Requirements:
- Serial cable (typically DB9)
- PC or PLC with RS-232 port (or USB-to-RS232 adapter)
- Optional: Use Arlyn’s Print Frame Definition Editor to format data for labels, tickets, or records
Best For:
- Legacy control systems
- Simple automated printing
- Applications requiring custom command strings or data formatting
Arlyn’s RS-232 implementation is fully programmable, giving you control over how weight data is sent, when it’s triggered, and what information is included.
USB Flash Drive: Data Logging Without a PC
When there’s no nearby computer available, the USB flash drive option provides a simple way to log and transfer weight data securely.
How It Works:
- Plug a USB flash drive into the scale’s port.
- The scale saves weight data — including time, date, group, and item information — directly onto the drive.
- Remove the flash drive and plug it into any computer to open the file in Excel or any spreadsheet program.
Ideal For:
- Hazardous environments where computers aren’t permitted
- Operators who prefer manual data collection
- Batching or shift tracking with portable data review
Enhanced Features (Arlyn UpScale Only):
- Automatically email log files on a schedule or trigger
- Import/export part, tare, and setpoint records
- Live backup capabilities to prevent data loss
Tip: USB flash logging is great for regulatory compliance or quality control when paired with Arlyn’s timestamped data logging features.
Ethernet & Wi-Fi: Remote Access, Real-Time Monitoring
For users who need to monitor weight data across a facility — or even from off-site — Ethernet and Wi-Fi are the most powerful connection options. These methods allow you to connect your scale to your local network or the internet, enabling remote access, multi-user monitoring, and real-time data streaming.
Ethernet (Wired TCP/IP)
Ethernet gives you a stable, high-speed connection between your scale and networked devices. Simply plug the scale into a network switch or router using a standard Ethernet cable.
How It Works:
- Arlyn’s Remote Indicator Software connects over the network.
- Access scale data from any PC on the same LAN.
- Supports multiple users monitoring the same scale.
Use Cases:
- Industrial facilities with centralized data collection
- Scales located far from computers or data rooms
- Batch operations requiring consistent real-time visibility
Bonus:
Can also be configured for remote access from outside the building with proper IP setup.
Wi-Fi (Wireless TCP/IP)**
Wi-Fi offers all the same benefits as Ethernet — without the cable. It’s ideal for:
- Mobile scales
- Locations without Ethernet wiring
- Fast deployments
Setup Requirements:
- Available only with Arlyn’s UpScale Touchscreen Indicator
- Connects to your wireless router like any device
- Configure network settings via touchscreen interface
Key Benefits:
- Access your scale from anywhere in the world
- No need to be in the same room or facility
- Enables cloud logging, live dashboards, and alerts
- Arlyn scales use encrypted communication over Wi-Fi to protect your data.
Compatible Tools & Integrations:
- Arlyn Remote Indicator Software (monitor/control from PC)
- AxChange Cloud Monitoring (real-time logging + mobile access)
- Email alerts, weight triggers, and auto-logging when paired with UpScale
Advanced Integrations for Industrial Systems
If your operation uses PLCs, SCADA systems, or custom-built software, Arlyn Scales offers advanced communication options designed to seamlessly integrate with industrial automation environments.
Modbus Protocol (for PLCs) **
Modbus is a widely used industrial protocol for communication between field devices and control systems. Arlyn Scales equipped with the UpScale Touchscreen Indicator can act as a Modbus server, allowing a PLC or HMI to request weight data or send commands.
Key Benefits:
- Seamless integration with automation, batching, or manufacturing systems
- Compatible with Modbus TCP/IP (Ethernet) or RTU (RS-485)
- Full access to real-time data and remote commands
Use Case: Integrate with Allen-Bradley or Siemens PLCs to automate filling, checkweighing, or line control.
RS-422 & RS-485: Long-Distance, Multi-Drop Communication
For environments that require multiple scales across large distances, RS-422 and RS-485 offer rugged, noise-resistant communication protocols.
RS-485 Highlights:
- Supports communication distances up to 4000 ft
- Connect multiple scales to a single PC or controller
- Ideal for multi-scale batching stations or facility-wide networks
RS-422 Highlights:
- Full duplex (simultaneous two-way) communication
- Better for systems where speed and synchronization matter
Bonus: Arlyn offers RS-485 to USB adapters and software to manage up to 10 scales from one computer.
Analog Output (4–20mA / 0–5VDC / 1–5VDC)
For simple integration with chart recorders or PLCs that don’t require digital communication, Arlyn’s analog output options convert weight data into scalable electrical signals.
Available Formats:
- Current: 4–20mA (industry standard)
- Voltage: 0–5VDC or 1–5VDC
Use Cases:
- Pump control or valve regulation based on weight
- Continuous flow monitoring systems
- Level sensing in tank or drum setups
REST API: Real-Time Cloud & Software Integration **
Need to push scale data into your custom software, ERP system, or cloud application?
Arlyn’s built-in REST API (available with UpScale indicators) allows direct communication with your scale over Ethernet or Wi-Fi using standard HTTP requests.
Key Features:
- Access live weight data on demand
- Automate inventory updates, audits, or process triggers
- Integrate with modern tools like Zapier, Integromat, or custom dashboards
No middleware required — just fetch and send via your own app or script.
Google Sheets Live Logging **
For fast cloud-based access, Arlyn’s UpScale indicator allows you to log data directly to a Google Sheet in real time — no third-party software needed.
Setup in Minutes:
- Connect scale to Wi-Fi
- Authorize a Google Sheet with edit access
- Data is pushed to the sheet every 2 seconds (configurable)
Benefits:
- View logs from anywhere
- Share real-time weight data with your team
- Use built-in Sheets tools for visualization or alerts
Ideal for teams managing remote operations, lab tracking, or production batch logs in real time.
Smart Features to Enhance Scale Workflow
Beyond simple data transfer, Arlyn Scales offer intelligent capabilities that let you automate tasks, improve traceability, and streamline operations — all from the scale interface.
AxChange Cloud Monitoring & Alerts **
AxChange is Arlyn’s cloud-based platform for real-time weight monitoring across multiple scales and locations. Accessible from any device (desktop, tablet, or mobile), it enables:
- Live weight tracking
- Custom alerts via email or text
- Multi-user access with hierarchical permissions
- Historical data review
Perfect for remote teams, compliance monitoring, or centralizing visibility across departments.
Setpoint & Batching Functions
Scales with setpoint outputs can trigger actions automatically when specific weights are reached.
Use Cases:
- Fill control: Stop a pump when 500 lbs is reached
- Dispensing: Switch to trickle feed at target thresholds
- Mixing: Trigger relays to control mixers, valves, or feeders
Enhanced Setpoint Features **:
- Email notifications when target weights are hit
- Auto-print weight tickets when conditions are met
- Works with Ethernet, USB, RS-232, or Wi-Fi
Easily configure complex batching formulas directly on the scale — no PLC required.
Barcode / QR Code Scanning & Printing **
Eliminate manual entry and reduce operator error with integrated barcode tools.
Scanning Functions:
- Instantly pull up tare containers or part profiles
- Activate checkweighing configurations
- Use built-in camera or optional handheld scanner
Printing Capabilities:
- Print weight labels with barcodes or QR codes
- Compatible with select Star Micronics and USB thermal printers
Use for part tracking, batch labeling, or inventory
HDMI Screencasting / Scoreboard Display **
For teams or training environments, Arlyn’s HDMI screen mirroring allows the scale display to be shown on any monitor or TV.
Use Cases:
- Present live weight readings on a large screen
- Train new operators without crowding the indicator
- Display in public-facing or quality control environments
Paired with the UpScale indicator, this feature boosts collaboration and visibility in high-volume production areas.
Flow Rate Measurement **
Track the rate of change in weight over time to monitor continuous dispensing or draining.
Built-in Functions:
- Set specific gravity to convert to gallons or liters
- Set high/low/no-flow alarms
- Includes hardware outputs for relays (valves, buzzers, etc.)
Bonus:
- No extra setpoint module required — it’s built into Flow Rate mode
- Ideal for gas cylinder usage, chemical drums, or tank-level tracking
Checkweighing Automation **
Quickly verify whether a product meets a target weight — and take automated action.
Key Capabilities:
- Visual alerts (HI / LO / OK) on-screen
- Trigger relays or actions when weight is in range
- Store and switch between multiple checkweighing setups
Pair with barcode scanning to rapidly switch between different products or tare containers on the fly.
3rd-Party Scale Integration **
Already have a scale from another brand but want the advanced features of the UpScale display?
Arlyn offers a unique solution: plug the UpScale Indicator into an existing third-party scale and tap into its data stream. You’ll gain access to:
- Barcode support
- Google Sheet logging
- Cloud monitoring
- API access
- Advanced data logging and printing
A perfect retrofit option when you want modern functionality without replacing your entire weighing setup.
Choosing the Right Connectivity for Your Workflow
With so many options, here’s a simple way to decide what kind of connection best suits your environment:
Use USB Cable If:
- You want a simple, plug-and-play connection
- Your scale is near a PC
- You want to export to Excel or Access
Use USB Flash Drive If:
- The scale is in a hazardous or offline location
- You want to manually collect and transfer logged data
Use Wi-Fi or Ethernet If:
- You need remote access or centralized monitoring
- You’re logging data to a cloud system or Google Sheets
- You want to control multiple scales from a single location
Use RS-232 / RS-485 If:
- You’re integrating with legacy systems or PLCs
- You need long-distance, industrial-grade wiring
- You want multi-drop communication across scales
Use Modbus or Analog Output If:
- You’re working with automation, SCADA, or chart recorders
- You need to integrate into existing process control systems
Use Arlyn UpScale + AxChange If:
- You want the most powerful, cloud-connected scale platform
- You need to monitor weights on mobile devices, set alerts, or enable operator logins
Frequently Asked Questions
How do I connect my scale to my computer?
Can I log weight data directly into Excel?
Can I connect multiple scales to one computer?
What’s the best connection method for remote access?
Is special software required?
Ready to Connect Smarter?
Whether you’re logging weights into Excel, building an automated batching system, or streaming live data across your factory floor, Arlyn Scales offers the most advanced, flexible, and reliable connectivity options on the market.
- USB, Ethernet, Wi-Fi, and Modbus-ready
- Built-in data logging and software tools
- Cloud access and mobile monitoring with AxChange
- Seamless integration with third-party systems
Need help choosing the right setup? Talk to a scale specialist today.
