Usually, the control of processes with a PLC runs fully automatically after the initial parameterization. In some applications, however, it is necessary for the operator or technician to be able to call up and set the process data at any time. With the help of platform-independent remote access, this process is simplified and accelerated.
The virtual HMI models of the 'UniStream PLC' series from Spectra enable precisely this simple operation. They no longer have an integrated touch display, but behave in exactly the same way for the programmer as the models with an integrated touch display. All display and operating elements are completely defined and parameterized within the 'Unilogic' development environment.
Using an app available for all operating systems, the user interface of the PLC can be displayed on a smartphone, tablet or PC. The UniStream Virtual HMI series is available in Classic, Standard and Pro versions, which differ in terms of I/O expandability, interface options for communication with other systems, SD card support and the scope of special software functions such as web servers or PID control loops.
If a touch display is still required directly on the system or machine, the series can be retrofitted with a display or can be connected to a display via Ethernet.