Manual XBC-U

Chapter 1 Introduction
System
(31) Token Ring
As short-distance network using Token to connect to network having physical ring structure, one of the
Node connection methods at network. If node sending data gets Token, then node gets right to send
message packet. Realistically structured examples are IEEE 802.5, ProNet-1080 and FDDI. Terms called
Token is used as IEEE 802.5
.
Token passing
Token
Ring
Dual Token passing
(32) UDP(User Datagram Protocol)
A transport layer protocol for the Internet
- High speed communication because of communication without connection
- Multiplexing
- Lower reliability than TCP in transmission (Tough data doesn’t arrive, it doesn’t send data again)
(33) Auto-NegotiationFDDI (Fiber Distributed Data Interface)
Based on optical cable, provides 100Mbps, Shared Media Network as Dual Ring method, Token Passing
is done in two-way.
Max 200Km distance for entire network, Max 2Km between Nodes, Max 500 nodes. Generally, this used
as Backbone Network.
(35) Reset
This is function used when you want to initialize the communication module to clear the error
Select [Online] [Rest] in the XG-PD
If you execute this function, PLC will restart.
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