| Protection against reversed polarity The power supply input of each display module is protected against reversed polarity. Further, the modules are available with Schmitt trigger inputs to increase the noise immunity. Control by data bus The display modules are equipped with a latch (display memory) allowing driving by a data bus or multiplexed signals. Also for active low signals For Industrial plcs with NPN signal outputs, display modules with active low data inputs are available. Description see pages 5/6. Wide range of products Besides display modules, series D657D72/D75 also includes status indicators and push-button switch modules . |