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Silver Series Installation and Operation Manual, Rev B ... - Watlow

Silver Series Installation and Operation Manual, Rev B ... - Watlow

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126 <strong>Silver</strong> <strong>Series</strong> Programming <strong>Manual</strong>The PLC must only enter window numbers that represent full size windows when using the PLC Control Objectfunction. The HMI automatically closes any open windows before the window called by the PLC Control Object isdisplayed.The Direct <strong>and</strong> Indirect Window ObjectsIf you want the PLC to call up a popup window that is to be overlaid on top of other windows already open, thenthere are two methods used to do this:• Direct Window Object• Indirect Window Object Unlike the PLC Control Object, the Direct <strong>and</strong> Indirect Window Objects are only active for the windows into whichthey are placed.The Direct Window Object is used to display a popup window using a PLC coil. The HMI continuously reads the valueof the PLC coil to determine its state. If the trigger state is detected, then the predefined popup window is displayed.The Indirect Window Object is used to display a popup window using a PLC data register. Similar to the PLC ControlObject, the HMI continuously monitors the selected PLC data register. It will display any popup window thatcorresponds to the number placed into the PLC data register by the PLC.The PLC must reference a window that is less than full size when using the Direct Window <strong>and</strong> Indirect Windowobjects.To call a popup window using the Direct Window Object:1. From the Objects menu, select Direct Window. The New Direct Window Object dialog box appears.2. Select the trigger state in the Trigger drop-down box (ON or OFF).3. Click the Setting… button in the Read address section <strong>and</strong> select the PLC address according to Device typeselected from the drop down menu <strong>and</strong> then enter the address.0600-0069-0000 <strong>Rev</strong>. B

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