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Chapter 8 High-speed Link
8.5 High-speed Link Information
With High-speed link service 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 operates 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 network, and the individual
information of _HSxSTATE, _HSxTRX, _HSxMOD and _HSxERR to provide communication status for
128 register 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 Send/Receive data through High-speed link information of Run-link
and Link-trouble when operating several PLCs with High-speed link used.
[Table 8.5.1] below shows functions and definition of the High-speed link information.
Classification
Information type
Keyword name
(x=High-speed link No.
n= High-speed link
station No.)
Data type
Monitor
Program
10
Pnet I/F Module 2MLL-PSRA, 2MLL-PMEA, 2MLL-PMEB User's Guide
Run-link
Link-trouble
Whole
Whole
information
information
_HSxRLINK _HSxLTRBL
Bit
Bit
Available
Available
Available
Available
[Table 8.5.1] High-speed link information function
[Figure 8.5.1] Monitor window of variables
Honeywell
Send/Receive
Operation
Mode
status
Individual
Individual
information
information
_HSxTRX[n]
_HSxMOD[n]
(n=0.127)
(n=0.127)
Bit-Array
Bit-Array
Available
Available
Available
Available
High-speed
Error
link status
Individual
Individual
information
information
_HSxERR[n]
_HSxSTATE[n
(n=0.127)
](n=0.127)
Bit-Array
Bit-Array
Available
Available
Available
Available
R220
January 2019
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