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How can I repair my NI-Serial software?.

How can I determine whether my hardware and software are installed properly?.

How can I determine which version of the NI-Serial software I have installed?.

Why does my PCI/PXI serial card display the wrong serial number?.

How can I determine which type of serial hardware I have installed?.

How do I force Windows to detect my ExpressCard hardware?.

How do I force Windows to detect my USB hardware?.

How do I force Windows to detect my PCI, PXI, or PCMCIA hardware?.

Troubleshooting and Frequently Asked Questions.

Uninstall Software from Your LabVIEW RT Target.

Setting Ring Indicate (RI) and Data Carrier Detect (DCD).

Retrieving the RS-232 Transceiver State.

Setting the USB-485 Programmatically Controlled Bias Resistor Mode.

USB-485 Programmatically Controlled Bias Resistors.

Retrieving the Serial Interface Type (RS-232 or RS-485).

Monitor, Record, and Display NI-VISA API Calls.

Verify Installation and Troubleshoot NI-Serial Problems.Measurement & Automation Explorer (MAX).If any of your serial ports are still not visible, disconnect and reconnect the USB serial hardware to a different USB port and return to step 2.Windows should automatically detect your hardware.Click the Scan for Hardware Changes icon at the top of the Device Manager window.If any USB Composite Device has an exclamation mark, right-click the port and select Uninstall. Verify that no USB Composite Devices have exclamation marks (!). Double-click the Universal Serial Bus Controllers icon.If any USB serial port has an exclamation mark, right-click the port and select Uninstall. Verify that all USB serial communication ports are displayed without exclamation marks (!). Double-click the Ports (COM & LPT) icon.The Device Manager window should appear as shown below. Select the Hardware tab and click the Device Manager button.Select Start✼ontrol Panel and double-click the System icon.To solve this problem, complete the following steps: If your USB hardware does not show up in the device manager, Windows did not detect your hardware.

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