6 PACSystems™ RSTi-EP EPSCPE115 Standalone CPU Quick Start Guide GFK-3039C
Note:
• LAN2 will not be operational unless it is configured from the
programmer with a valid IP address.
• Care must be taken when assigning IP Addresses and subnet masks to
each LAN so that an overlapping IP subnet is not created. Intermittent or
no Ethernet communication may result if an overlapping IP subnet is
created and the two interfaces are NOT connected (cabled) to the same
physical network.
• By default, PME prohibits configuring both LAN interfaces on an
overlapping IP subnet. (This may be changed by going to Controller
General Options and changing the Multiple Embedded LANs on Same
Subnet to Show as Warning.)
Typical Network Application
A typical application will take advantage of the two independent LANs. The dedicated
LAN 1 port will be used for communications with plant-level or supervisory layers. The
switched LAN 2 will be used to communicate with devices over PROFINET within the
manufacturing cell or process.
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