سؤال هام ما الفرق بين PLCوRTU

If you have a small system
and need only a slave device
with little computing power,
a Remote Telemetry Unit will
probably work. But if you
need to interface with other
devices, you will have to look
to PLCs or Remote Terminal
Units.
If you need a stand-alone
device that has power, a PLC
might work for you. But be
prepared for some program-ming training, PLCs can be
difficult to configure. And
because of the wide price
range, you get the functions
you pay for.
If you need an intelligent
unit to control multiple processes
without intervention
from a controller or master,
you need a Tetragenics Remote
Terminal Unit. These
intelligent units also provide
advanced control functions
and are suited for expansion.