Two options are available for the connection of PCM600 to the merging unit.
- Direct point to point link between PCM600 and the merging unit
- Indirect link via a station LAN or from remote via a network
Point to point link
The merging unit is provided with an RJ-45 connector on the LHMI. The front communication port is mainly used for configuration and setting purposes. The front communication port should not be connected to any Ethernet network.
The merging unit has a DHCP server for the front interface. The DHCP server assigns an IP address to the computer connected to the front interface. The computer's LAN interface has to be configured to obtain the IP address automatically.
LAN or WAN network
In TCP/IP networking, a LAN is often but not always implemented as a single IP subnet. A router connects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address. Design considerations for computer networks cover a wide range of topics including layout, capacity planning, and security. To some extent, the network configuration also depends on user preferences.