ComDebug is a powerful, free serial communication and data logging application developed by Windmill Software. It is widely used to interface, troubleshoot, and log data from hardware instruments using RS232, RS422, RS485, Modbus, and TCP/IP networks without requiring any programming.
To optimize your data collection pipelines, prevent packet losses, and extract insights seamlessly, implement these top 5 ComDebug tips. 1. Leverage Non-Printing Characters to Master Data Parsing
When handling binary or raw data streams, what you cannot see can break your logging software. ComDebug allows you to view non-printing characters—such as carriage returns (CR), line feeds (LF), and tabs—directly in its main terminal loop.
The Tip: Always enable the hex or binary visibility mode when setting up a new device parser.
Why it matters: Instruments frequently append invisible termination characters to mark the end of a message. Correctly identifying these allows you to accurately build your ComDebug message parsing rules without missing trailing data segments. 2. Implement Automated Parsing via the “Extract” Tool
Manually splitting comma-separated values (CSVs) or structured instrument text strings wastes time and increases processing overhead. ComDebug features an internal Parse utility built explicitly to isolate target metrics.
The Tip: Click the Parse button within your message settings, highlight your target information (such as weight, temperature, or coordinate data), and map it directly using the Extract menu.
Why it matters: This converts raw data streams into individual, structured channels in real-time, preparing clean data for direct exportation into software like Microsoft Excel. 3. Log Data Only on “First Channel Change” to Prevent Bloat
Continuous logging at extreme speeds generates millions of repetitive data lines, which consumes disk storage and complicates downstream data analytics.
The Tip: In ComDebug, extract a variable like a “Record Number” or timestamp to a designated channel. Then, link ComDebug to the Windmill Logger utility, navigate to Settings, and select Log on First Channel Change.
Why it matters: This stops empty or redundant polling. The software will only commit a row to your log file when the connected device pushes completely new data or updates its state. 4. Sync “Data Persistence Time” with Logger Intervals
A common issue in automated data logging is getting “empty scans” or duplicate rows because the software samples faster than the hardware updates.
The Tip: Open Instrument Timings in ComDebug and verify that your Data Persistence Time (the lifespan for which a collected value remains valid) is configured to be longer than your companion Windmill Logger’s “Read Inputs Every” interval.
Why it matters: Aligning these timelines ensures that your analytical charts and spreadsheets reflect sequential hardware intervals accurately without falsely logging missing readings. 5. Control and Spy on COM Hardware Control Lines
When a physical instrument stops responding, the root cause is usually a breakdown in hardware flow control rather than a glitch in your software. Expert Guide to Logging Best Practices – New Relic