Outputting a Constant Signal From a Serial PortHardware: PXI/CompactPCI>>Controllers
Problem: I need to use a serial port to output a signal indefinitely. Can this be done and on what lines? Solution: Although it is not a common application to output voltage from a serial port it can be accomplished. You can think of a serial port as in/out port, with three output lines (TxD, DTR, RTS) and five input lines (CTS, DSR, DCD, RI, RxD). ![]() Serial Port Pinout Output Lines:
An example implementing a break state for the DTR line, created in LabVIEW 7.1, is attached below. Related Links: KnowledgeBase 21P954LI: How Can I Control the DTR and RTS Serial Lines in LabVIEW? KnowledgeBase 48NB9TBH: Pinout For Serial Ports Developer Zone Community Example: Controlling DTR RTS Lines On A Serial Port Developer Zone Tutorial: Serial Communication General Concept Attachments:
Report Date: 08/25/2006 Last Updated: 09/13/2011 Document ID: 40OECPA0 |
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