HSLink Introduction
•
9
Memory
NO 1
................
................
NO 2
................
................
NO 45
................
................
Master
Slaves I/O Modules
No 45. Your output
values are ......
Output value of every slaves
1.4 HSLink Technical Information
1.4.1
HSLink Technology Brief
HSLink is a 1 -master-n-slave command-response communication system.
The one and only one master sends commands to slave I/O modules for
setting output values and requesting input information. Every slave
responses when receiving commands with slave number of its. The
response is either to set output according received values or to reply
requested input information to master.
The following graph personifiedly shows the working theory of HSLink
regarding how to
set output values
.
Figure 1.8: HSLink technology brief -1
The only one teacher (the master) sends message ”No.#, your output
values are ???” to all students (slave I/O modules), then the very student
(slave No.#) sets its output channels according values heard. The values
that master announced to slave modules are on the blackboard (RAM on
master cards), and can be easily modified by user.
