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HSLink Introduction
1.1.2
Features of HSLink System
Ø
High speed
It takes just 30.1
μ
s for a HSLink master to scan all the I/O points in a slave
module. Take HSL-DI16DO16-DB-NN as an example, This slave I/O
module supports 16DI and 16DO, and these 32 I/O points could be scanned
(or updated) in 30.1
μ
s. In other words, the scanning speed is as high as
1000 points per ms.
Ø
Real time
The time period for a HSLink master to scan all slave I/O modules is
deterministic. It is exactly proportional to the number of slave I/O modules.
For a HSLink system with 30 slave I/O modules. The scanning time period is
precisely 30 X 30.1
μ
s = 0.903 ms.
Ø
Easy wiring
The connection among the HSLink master and all slave I/O modules
requires merely the commercial Ethernet cables, which dramatically reduce
the wiring effort. With just Ethernet cables, hundreds even thousands of I/O
data can transmit between the HSLnk master and slave I/O modules. This is
absolutely the easiest and mos t cost effective wiring solution.
Ø
Huge number of I/O points
There are at most 63 slave I/O modules in one set of HSLink system with
one HSLink master, and there are at most 16 sets of HSLink system (8
pieces of PCI-7852) in one CPU Unit (PCC-5300). That is 63 X 16 = 1008
modules. Just choose all modules as HSL-DI16DO16-DB-NN, and the total
number of I/O points is 16,128 DI and 16,128 DO. Wow!
Ø
Easy I/O expansion
To expand I/O points of add-in card needs not only the card itself but also a
free PCI or ISA slot. The nightmare is that there are still I/O points needed
when no more free slot exists. To lift the constraint of add-in-like I/O, just
choose HSLink. What you need to expand I/O points is one more slave I/O
module (with TB for wiring) and a Ethernet cable with RJ45.
Ø
Self-diagnostic function
For those who concern the communication failure, the HSLink provides an
answer. Once power on, the network status will be monitored continuously,
and a status register will keep the accumulated slave -no-response count
for every individual slave I/O module.
