Automation systems in industrial world need a kind of method to control automatically all continuing process
from one to another. Besides, they also require monitoring process and remote controlling. For that reason they
use SCADA which are using PLC(s) to implement such demand. One of the remarkable SCADA systems is
Wonderware.
This paper will describe a method of remote controlling and monitoring in SCADA system using Wonderware
which is called SCADAlarm. We design a plant to simulate production process in a drink industry which is
operated by PLC Omron C-200 HS and being connected by Intouch of Wonderware. SQL is used to acquire and
store data and display them in the form of table or graphic.
The simulation within InTouch and its real implementation on the plant gives the same result. The experiment
shows that there is delay about 0.22 second up to 0.4 second for sending and receiving data. And for our
simulation plant, the most appropriate modem is Rockwell 56 Kbps to implement SCADAlarm. The voice which
are captured by the modem is clearly enough for communication.