Here, the PC will act as a HMI, communicating with the operators, giving information on machine and production status and allowing them to control it in turn.
This scenario centers around a HMI module, such as the GTK one. It will also need one of the bus or network communications modules to talk to the rest of the system, to the PLC or PC doing the actual control.
Alternately, it can be combined with the PLC usage scenario for an all-in-one solution.
Again, other modules can be added to the pure Operator Station. For
instance, the DSP module's
ramp block could be used to limit the speed and acceleration
at which the operator can change values to within the limits of the
$Date: 2004/12/28 05:32:13 $