activation of the relay using rs 23

Is there any sign of low cost in which a relay can be activated through labview with rs 232 communication. Please let me know as soon as possible.

I need to acivate for a 5V with a labview timer relay and it should be communicated via rs 232 for the relay card.

Looking to change your relay specifically by RS232, or simply by using the serial port?

If it's the latter, then take a look at the "Troubleshooting Serial Line Monitor.vi" in examples of LabVIEW. With this, you can control the DTR (4 pins) and lines RTS (PIN 7) of your serial port and use them to move from a transistor or FET to control your relay.

Tags: NI Software

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