Signal Routing

An NI signal generator is capable of sending and receiving signals through the front panel and the PXI or RTSI trigger bus. The front panel connectors provides connectivity for the output channel as well as for control lines for sending and receiving clocks, triggers, and events. You can use the PXI and RTSI trigger bus to send and receive events, triggers, and Sample and Reference clocks.

All signal routing operations can be characterized by a source and a destination. To determine the possible signal routes for your device, complete the following steps.

1. Launch MAX, either by navigating to Start»All Programs»National Instruments»Measurement & Automation or by double-click the Measurement & Automation icon on the desktop to open MAX.
2. Expand Devices and Interfaces. Expand NI-DAQmx Devices.

   Note   If you are using a remote RT target, expand Remote Systems, find and expand your target, and then expand Devices and Interfaces.

3. Select your device. The view to the right of the MAX configuration tree shows the attributes of your device.
4. Click the Device Routes tab below the attributes view. A table in the Device Routes view shows the possible sources and destinations for the signal generator. Sources are listed in the far left column, and the possible destinations span the top of the table. Each cell in the table is an index with the valid source and destination terminal for the device.

   If a route is possible between a source and destination terminal, the intersecting cell is colored green or yellow. A green cell indicates the route can be made without consuming any important resource of your device. A yellow cell indicates that although the route is possible, something important must be consumed to create the route. Placing the cursor over a yellow square reveals the resource used in the subsystem used indicator.

5. Use the niFgen Export Signal VI or the niFgen_ExportSignal function to route the signals. For terminal name syntax, refer to Syntax for Terminal Names.

Tip  You can use the niFgen Export Signal VI or the niFgen_ExportSignal function to route the same signal to multiple destinations.