Teledyne GC-Pro - Gas Chromatograph - HMI Remote Access - Manual (Page 9)

Remote Access to HMI Operational Theory
Teledyne Analytical Instruments 3
Operational Theory
The VNC Server is enabled on HMI5070TH display with
Ethernet cable connected to its LAN port. The VNC
client/viewer on the internal network can use the private IP
address of the server, but the VNC client/viewer on the external
network need to use the public IP address. However if private
network has to be accessed by the VNC client from the external
network, “port forwarding”/“net mapping” can be used as
demonstrated in the following block diagram.
Figure 2-1: Server Access by the Client onInternal and External
Networks