brand new and high quality Features: There are two modes in total, one is the main mode, and the other is the input parameter mode. When it is powered on, it enters the main mode. In this mode, the upper row of digital tubes displays the value of D110. The lower row of digital tubes shows the value of D114. The button switch controls the closing and opening of the corresponding intermediate relay (for M), and the indicator light is based on the intermediate relay (for M) is closed and opened to control the on and off. Press the SET button for 3 seconds to enter the parameter mode. In the input parameter mode, the value after the data register D200 can be changed. The above row of digital tubes (double-row digital tube board) or the left two-digit digital tube (single row board of the digital tube) is used to display the number of the data register to be changed. Shape for key (increase) can be changed by pressing the for triangle for key (decrease), when changingthe value read in the lower row of digital tubes (double-row digital tube board) or the right 4 digits. The tube (the board of the single-row digital tube) is displayed, and the UP button and DOWN can also be used to change the value. Note: When the single-row digital tube enters the input parameter mode, the d0 displayed on the left side corresponds to the actual one. The D register of the PLC is D200. The for d1 displayed on the left and corresponds to the D register of the PLC is D201, and so on. After changing the value, press the SET button for 3 seconds to enter the main mode. Specifications: Dimensions: 79x43x27mm/3.11x1.69x1.06inch Opening size: 75x40mm/2.95x1.57inch for Shell color: gray Package includes: 1 x Display Board