WOODWARD 9905-020分配和速度控制模塊
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WOODWARD 9905-020分配和速度控制模塊當電池電量低時，某些系統(tǒng)參考位設置為邏輯1。它們是%SA011（LOW_BAT）、%SC009（ANY_FLT）、%S010（SY_FLT）和%SC012（SY_PRES）。最具體的是%SA011（LOW_BAT）。該位可用作梯形圖邏輯程序中的觸點，以打開控制操作員面板上警告燈的輸出（如下面的示例梯級），或向操作員接口終端發(fā)送警告。在上面顯示的梯級中，WOODWARD 9905-020當PLC檢測到電池電量不足時，%SA011觸點將閉合。這將打開%Q輸出線圈，該線圈處理將打開警告燈的輸出模塊的輸出。另一種方法是將線圈的狀態(tài)（在這種情況下，可能是%M線圈）傳送到人機界面（HMI）終端，例如GE Fanuc CIMPLICITY HMI單元。HMI可編程為當特定位變?yōu)檫壿?時顯示警告消息。有關系統(tǒng)參考位和梯形圖邏輯編程的更多信息，請參閱GFK-0467系列90-30/20/Micro PLC CPU指令集參考手冊。WOODWARD 9905-020
WOODWARD 9905-020Certain System Reference bits are set to logic 1 when the battery is low. These are %SA011 (LOW_BAT), %SC009 (ANY_FLT), %S010 (SY_FLT), and %SC012 (SY_PRES). The most specific is %SA011 (LOW_BAT). This bit could be used as a contact in your ladder logic program to turn on an output that controls a warning light on an operator panel (as in the example rung below), or to send a warning to an operator interface terminal.In the rung shown above, the %SA011 contact will close when a low battery is detected by the PLC. WOODWARD 9905-020This will turn on the %Q output coil, which addresses an output module’s output that will turn on a warning light. An alternate method would be to communicate the status of the coil (which, in that case, would probably be a %M coil) to a Human to Machine Interface (HMI) terminal such as a GE Fanuc CIMPLICITY HMI unit. The HMI could be programmed to display a warning message when that particular bit goes to a logic 1. For more information about System Reference bits and ladder logic programming, see the Series 90-30/20/Micro PLC CPU Instruction Set Reference Manual, GFK-0467.WOODWARD 9905-020
品牌：WOODWARD
型號：WOODWARD 9905-020分配和速度控制模塊
產(chǎn)品說明：分配和速度控制模塊
特點：模塊/卡件，控制器，觸摸屏，伺服驅動器
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