Trace
- Last UpdatedOct 29, 2026
- 1 minute read
Logs a text message. This is typically done to debug the project.
|
Function |
Group |
Execution |
String Exp. |
Windows |
Windows Embedded |
IoT View |
Thin Clients |
Mobile Access |
|---|---|---|---|---|---|---|---|---|
|
Trace |
Log Message |
Synchronous |
No |
Supported |
Supported |
Supported (see Notes below) |
Not supported |
Supported (see Notes below) |
Syntax
Trace(strOutputMessage)
strOutputMessage
The text of the message to be displayed.
Return value
This function returns no value.
Notes
On Mobile Access, Trace messages are displayed in the activity log in the browser console. This also applies to projects running on IoT View, because they only use Mobile Access for thin client access. For more information, see Use the activity log to troubleshoot the Mobile Access web interface.
Examples
Display static text that reports a specific event:
Trace("Beginning step 5.")
Display a date or time stamp by referencing the appropriate system tag:
Trace(Date)
Concatenate static text, tag references, and function calls to form a complex message:
Trace("The current second of the minute is " + Second + " and the system tick is " + GetTickCount() + " ms.")