Delta OPC User Manual Note Graphic representations ： Clicking the left mouse button ： Clicking the right mouse button ： Double-clicking the left mouse button ： Pressing and holding the left mouse button, and then moving the mouse without releasing the button ： Typing with a keyboard ： Operating sequence (The graphic representation is used when an operating sequence is mentioned. For example, and .) ： Number used with a picture ： Point for attention (The item mentioned may be related to damage to equipment, property, or a human body.) Trademark declaration The products and trademarks which do not belong to Delta Electronics, Inc. belong to the companies which produce and declare them. 1-2