The Control Unit with Ethernet is an NPN type device that operates on 24 VDC power. It has the capability to control up to 32 I/O points, with 16 inputs and 16 outputs. When expanded, it can control a maximum of 384 points. The input operating voltage range is between 20.4 and 28.8 V, with a consumption current of 170 mA or less. This unit also features a built-in SD memory card function for added convenience. Additionally, it offers program upload protection and program protection functions for enhanced security. The periodical interrupt interval can be set from as low as 0.1 ms to as high as 30 seconds.