Using Your Serial Hardware

NI Serial Hardware and Software

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Using Your Serial Hardware

The following topics describe how to use the advanced features of your NI serial hardware and list some general programming requirements.

General Programming Requirements

Baud Rates

Performance on LabVIEW Real-Time

Advanced Features

FIFO Buffers

Retrieving the Serial Interface Type

RS-485 Transceiver Control

Setting the RS-485 Transceiver Control Mode in Windows

Setting the RS-485 Transceiver Control Mode in LabVIEW RT

Bias Resistors

USB-485 Programmatically Controlled Bias Resistors

Setting the USB-485 Programmatically Controlled Bias Resistor Mode

Retrieving the RS-232 Transceiver State with DeviceIoControl

USB-232 Transceiver Control

Setting the RS-232 Transceiver Mode with DeviceIoControl

Setting Ring Indicate and Data Carrier Detect (DCD) with DeviceIoControl

Status LEDs

USB LED Descriptions

ENET LED Descriptions

ENET PWR/RDY LED Signaling

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