Chapter 6 High-speed Link Service
6-11
6.5 High-speed Link Information
6.5.1 High-speed Link Flags
When High-speed link service is used to exchange data between communication modules of two or
more stations, it provides a checking method of High-speed link service status for the user through High-
speed link information so to confirm reliability of the data read from the destination station via the High-
speed link. In other words, the communication module
synthesizes the data received up to that time at
intervals of a specific time and lets the user know if High-speed link is operated as in parameters
specified by the user through High-speed link information where the whole information of Run-
link(_HSxRLINK) and Link-trouble(_HSxLTRBL) to provide the whole information of the communication,
and the individual information of _HSxSTATE, _HSxTRX, _HSxMOD and _HSxERR to provide
communication status for registered items in the parameters are contained. The user can use the
information in keyword format when programming, and also monitor the High-speed link status using the
monitor function of the High-speed link information. Prior to its application, the user is requested to
check the reliability of the communication data through High-speed link information of Run-link and Link-
trouble when operating several PLCs with High-speed link service. [Table 6.5.1] shows the functions and
definition of the High-speed link information.
[Table 6.5.1] The definition of High-speed link information.
Select [Variable/Comment] on the XG5000 project window to display [Fig. 6.5.1] as shown below. From
this window drag the device to be monitored on to the variable monitor window.
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