Generating a Digital Sample (Port)

You can use the digital port(s) in your DAQ device to generate a digital sample. This operation is based on software timing. On some devices, you can configure the ports individually to either measure or generate digital samples. Each port corresponds to a virtual channel in your task.

All E and M Series devices support TTL (transistor-transistor logic)-compatible digital signals. A TTL signal has the following two states:

• Logic Low = 0 V to +0.8 V

• Logic High = +2 V to +5 V

Common digital generation applications include controlling relays and driving external devices, such as an LED.