Document #10-32813 Rev A; June 07, 2019
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Sample Data Log Generated from Configuration File Example Above
Ethernet
The RMA PLUS embeds a 3-Port 10/100 Managed Ethernet switch. Therefore, you do not need a switch or router to cre-
ate a simple network of devices. You may connect your PC directly to the RMA PLUS on either port. The other port can
connect to another device (HMI, PC, RMA PLUS, etc.).
3-Port 10/100 Managed Ethernet Switch
Setup keys: SnifferPort
The RMA PLUS embeds a 3-Port 10/100 Managed Ethernet switch. It maintains a 100 Mbps, full duplex connection to
port 3 of the switch (internal connection). Ports 1 and 2 are for user connections.
IMPORTANT: The embedded switch will reset along with the RMA PLUS breaking connection to downstream device
(s). Therefore, carefully consider whether to daisy-chain the Ethernet connection in your system or make the RMA
PLUS a drop, leaving one port open for diagnostics.
Notable Features:
l
MDI/MDI-X Auto Crossover
· Auto-Negotiation (Speed and Duplex) (ports 1 and 2)
l
Broadcast Storm Protection (all ports)
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Multicast Storm Protection (all ports)
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Port Mirroring (see SnifferPort)
Broadcast Storm Protection
The embedded switch in the RMA PLUS has an intelligent option to protect the switch from receiving too many broad-
cast packets. As broadcast packets are forwarded to all ports except the source port, an excessive number of switch
resources (bandwidth and available space in transmit queues) may be utilized. Broadcast packets in excess of the pre-
set storm rate will be dropped protecting both the switch and attached devices, namely the RMA PLUS.
Without storm protection, all broadcast packets would be received by the other switch ports (and RMA PLUS) con-
suming valuable resources.
