This design also means the I/O modules can be installed on a panel with two mounting screws or on a DIN rail, eliminating the need for a rack and conserving panel space.

• 这一设计还意味着这些I/O模块可以安装在有两个安装螺丝钉的面板上，或者在一个DIN轨上，免除了安装架的需要，节省了面板空间。