Solution
In real-world network-based applications, it is important to know if a link is up and running, as well as cable and connector statuses (checking for damage, water intrusion, and such...). To obtain such feedback, we can use the built-in Windows OS ping feature. After a successful ping session, you can execute more complicated network tests. The most important step in executing ping commands is not to generate too many requests and to not overload the network, especially if the ping command is part of automated routing inside a complex application.
Below you can find two different methods to ping an IP address from LabVIEW programmatically.
- The following example utilizes the built-in Windows OS ping feature to perform a ping using LabVIEW. This example uses .NET Framework (version 4.0) calls. The image below is a VI Snippet that can be saved in your system and then dragged and dropped into your LabVIEW block diagram.
- You can also ping an IP address programmatically by using the System Exec VI to execute the ping <IP address> command. If the device is connected to the network, you will receive a response, otherwise the request will time out. The System Exec VI behaves differently depending on the computer's OS. Refer to Execute Command Line Arguments from LabVIEW for more details. The VI below can be run in a Windows system to ping a remote device.