Setting Power-Up States for M Series, NI 670X, and Software-Timed Digital I/O Devices

You can set the state of physical channels for some devices when your computer is powered on or the device is reset in NI-DAQmx. However, for all NI-DAQmx simulated devices, power-up states are not persisted.

Caution  Devices have limited numbers of writes to the EEPROM, so change power-up states infrequently.

Setting Digital States for M Series and Software-Timed Digital I/O Devices

You can set the digital power-up state for M Series and software-timed digital I/O devices to logic low, logic high, or tristate (floating) in MAX. You also can set power-up states with the Set Power Up States (Digital) function/VI, but using MAX is the recommended method. You can only specify a programmable power-up state of tristate on devices with configurable direction. Refer to your device documentation to see if your device supports configurable direction. For NI 6230/36 devices, you can also specify a power-up state of tristate for digital output. The power-up state can be specified on a port basis only. The power-up state of all other NI 623X devices can be specified by line but cannot be set to tristate.

Note  I/O direction on software-timed digital I/O devices is port configurable only. Therefore, you can set the power-up state to tristate only on a port-by-port basis. You can, however, set individual digital output lines in a port to logic low or logic high.

Setting Analog States for NI 670X Devices

You can set the analog power-up state for NI 670X devices in MAX. You also can set power-up states with the Set Power Up States (Analog) function/VI, but using MAX is the recommended method.