Thank you for link. Because you do not want to tie up computer resources waiting for ComRd to complete, and you do not want to make the serial input buffer extremely large, you must be notified of when data is present at the port. Thank you for answer. The result of this function call. Message 6 of 9. You can follow this model to open higher-numbered ports. Thank you for your feedback.
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August Part Number: Use the CloseCom function to release computer resources used by your serial port session. Thank you for link. The RS library contains many functions that handle all aspects of serial communication.
Message 2 of 9. This is something you should know. Labwinxows number that indicates the COM port on which to operate. The result of this function call. Windows Input queue filled and input characters lost; you did not remove characters fast enough. The count specifies the number of bytes to write.
GetComStat – LabWindows/CVI Help – National Instruments
The following table shows the hexadecimal value of the bit and its corresponding description: This code is a negative value that laabwindows the type of error that occurred. Status fields give you information about whether the function call performed successfully. I can’t find those examples mentioned above. I think NI should make it a little easier to find examples.
Any help would be much appreciated! Most Active Software Boards: The portNumber 1, for example, may not necessarily map to COM1. August Part Number: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. You can follow this model to open higher-numbered ports. If you want to set port settings, call OpenComConfig instead.
Solved: Simple Serial Communication using RS – Discussion Forums – National Instruments
Hardware-specific information about the status of the selected port. Unfortunately we do not write code for customers, however, if you are experiencing a specific error, we could work with you to get around this error.
These functions are described below. Windows Transmission is in a suspended state because an XOFF character was received from the remote device.
By using two examples I solved my problem. When you receive an labwindowx code you can use GetRSErrorString function to get a verbal description of the error.
Serial Port Test from LabWindows/CVI
Also you could look to www. Because you do not want to tie up rd-232 resources waiting for ComRd to complete, and you do not want to make the serial input buffer extremely large, you must be notified of when data is present at the port.
The portNumber 1, for example, may not necessarily map to COM1.
When the queue length equals zero, it is safe to close the port. Simple Serial Communication using RS Most common errors are: It must scan ports state and indicate when some words are appeared.