© National Instruments | 2-17
PXIe-8840 User Manual
After installation of the software, the controller automatically reboots, and you now can program
it using LabVIEW Real-Time.
Note Refer to the RT Getting Started Guide available on your host computer for
more information about setting up your RT target.
LabVIEW RT Configuration Switches
Use the LabVIEW RT configuration switches to configure LabVIEW RT if it is installed on the
controller. If you are not using LabVIEW RT, these switches should remain in the OFF position.
The controller reads these switches only after a system reset.
The PXIe-8840 controller includes the following LabVIEW RT configuration switches:
• Switch 1—Boot LabVIEW RT: Set this switch to ON to boot LabVIEW RT.
• Switch 2—Boot Safe Mode: Set this switch to ON to boot LabVIEW RT into safe mode to
reconfigure TCP/IP settings and to download or update software from a host computer. This
switch overrides the behavior of Switch 1. Booting the controller into safe mode does not
start the embedded LabVIEW RT engine. After changing the settings or software, reboot
the controller with this switch OFF to resume normal operation.
• Switch 3—Disable Startup VI: Set this switch to ON to prevent VIs from automatically
running at startup if the controller becomes inaccessible because of a startup VI.
• Switch 4—Reset IP Address: Set this switch to ON to reset the IP address and other
TCP/IP settings to their factory defaults. Use this switch if moving the controller to a
different subnet or if the current TCP/IP settings are valid.
Note By default, the target automatically attempts to connect to the network using
DHCP. If the target is unable to initiate a DHCP connection, the target connects to the
network with a link-local IP address or 169.254.x.x.
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