| 摘要 |
<p>The instruction building block is used for visual reproduction of the functional interconnection of pneumatic, fluidic, electrical, electronic or hydraulic control function elements. There are a number of holes in rows and columns on a plug-in board, where the control and working elements are plugged in with pins. The control and working elements are made up of removable connecting plates with plug-in pins which fit onto a display panel. The plates and each of the control and operating elements are fitted with fixing devices. The plate has several holes and each control and operating element is made with at least one tapered hole for a screw. Each plug-in plate can be selectively connected to one or more control switching or operating elements.</p> |
