Using the Trigger SMB Connector on cRIO 9012/9014 Controllers as Digital I/O Pin

• dio5200ReadPin(1) to set as input
• dio5200WritePin(1, true/false) to set as HIGH / LOW digital output

Preparatory steps

• Make sure your cRIO has the correct software installed in NI MAX and update it there, if necessary. See Install NI Software on Your CompactRIO Controller for instructions.
• Make sure your hardware is supported by the installed LabVIEW and cRIO version. See Software Support for CompactRIO, CompactDAQ, Single-Board RIO, R Series, and EtherCAT for more information.
• Download the vx_exec.out library file from the cRIO by entering ftp://<cRIO IP address>/ni-rt/system/vx_exec.out in a browser or FTP client and store it locally.

Step-by-Step solution

1. Download and extract the 901x SMB Pin 8.2.zip linked below that contains the example project.
2. Open the example project file cRIO-901x SMB DIO.lvproj
3. Right-click the cRIO Target and select Properties
4. Make sure the chassis IP is entered correctly (brightly lit green dot on icon)
5. In the Project Explorer, open the cRIO-901x Read SMB Pin.vi

 

7. In the Block Diagram window, right-click the Call Library Function Node and select Configure...
8. As Library Path, select the path to the vx_exec.out file downloaded before and click OK.
9. Ignore the warning window about wrong DLL type.
10. Save and close the VI.
11. In the Project Explorer, right-click the Read Example.vi and select Run.

Expected Result