establishing communication between labview and the controllers

Hello experts

Please experts, I have a serious problem; This problem consists of establishing communication between LabVIEW and each automaton below:
1-OMRON(CP1H; CQM1)
2-MUTSIBISHI
3-GE FANUC 90-30;
4-allen bradley;
5-Siemens(S7-200;S7-300)
Most of these controllers communicate with my PC via SERIAL communication (com port). the concern here is to know:
1-how to read and write the addresses of these automatons through labview which is installed on my PC.

2- given that there is no Ethernet port on these PLCs but serial; Is there an NI (for example NI VISA) for communication with these machines.

thanks for understanding