The VISCA protocol that camera uses operates over a standard RS232 bus. Thus, the regular VISA functions will work, assuming your computer has a serial port. If you don't have one, you'll need to get one. A USB<-->Serial converter is probably the easiest way to do this, or you can get a plug-in card. There are examples that ship with LabVIEW showing you how to do serial communication using VISA.
As far as the communication protocol itself, it's basically just a series of bytes, which is spelled out in the manual. The first byte is the header, which contains the source and destination address. This is followed by the message bytes. The last byte is a termination byte. So, for example, for a camera at address 1, the IF_Clear command would be 81 01 00 01 FF. The camera should respond with 90 50 FF to indicate completion of the command. Implementing this with the VISA commands is pretty straightforward. You can use an array of U8s or you could use a string in hex format. See attached example for an idea.
