Human Machine Interfaces (HMIs) from Omron for industrial applications, include 15 different screens all with their own niche market. The series offers a sophisticated window into the process system, graphically conveying information to the operator.
The HMIs feature different facia depending on whether a high or low functionality is required, ranging from language choice and an alphanumerical keypad to a basic process display. Pictures and graphs representing complex information are created using powerful Windows based setup software and large image libraries.
The latest HMIs are all touch screen with a pressure touch switch covered by a protective sheet, allowing a quick response time of 2/10th of a second, suitable in harsh conditions. The NT620S has a clear electroluminescent display with a wide viewing angle. With a display size of a 192 x 120 mm and full graphic capabilities, the NT620 has been used to change a manufacturer’s conveyor line over from indexed operation to continuous drive at the press of a button. The operator was able to select speed and position recipes for up to 25 different products and throughputs using a simple menu selection.
All the HMI displays communicate via a fixed method such as a host link or an NT link(1:1/1:N) or memory link to a variety of PLCs such as Siemens, Allen-Bradley and Mitsubishi brands.