Maple Systems Silver HMI504T, Инструкция по установке и эксплуатации

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12. Click
Close
to close the Event Log Object dialog box. The Event Log Object is active no
matter what windows are currently displayed on the OIT screen. Therefore, you do not have
to place the object onto a window screen.
Dis playing Events Using the Event Dis play Ob ject
Though the Event Log Object continuously monitors the PLC for triggered events, it cannot display the events
without the Event Display Object. The Event Display Object takes the event strings sent to it from the Event Log
Object and displays them on a window screen as a list. The list contains all of the events that have occurred with the
most recently triggered event at the top of the list. You do not have to display the entire list of events on a window
screen. You can limit the viewable events to a ‘scrollable window’ that displays a given number of lines. You can
then create a register that allows you to scroll through the list of events using the scrollable window. An
acknowledge feature allows the OIT operator to touch an event recorded in the event list to display a popup
window. The popup window can than be used to display further instructions to the OIT operator or to perform some
operation.
4
To create an Event Display Object
1. From the Parts menu, click Event Display . Or click the Event Display icon in the Part2
toolbar. The Create Event Display Object dialog box appears.
2. Use the Description: box to enter a title for the Event Display part. A description is not
necessary but does help identify the purpose of the part.
3. In the Read address frame, select the 16-bit PLC register or OIT internal memory address
that will be monitored by the Event Display part for the scrollable window. Select BIN
(binary) or BCD format.
4. The No of words box is set at 1 and cannot be changed.
5. In the Write Address frame, select the 16-bit PLC register or OIT internal memory address
that will be monitored by the Event Display part for displaying a popup window. Select
BIN
(binary) or BCD format. This address is written to by the Event Log Object using the Write
Value number when the OIT operator acknowledges the event. Note: You must also
configure an Indirect Window Object on the same window as the Event Display Object with
the same write address in order to display the popup window.
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232 Sil ver Se ries In stal la tion & Op er a tion Man ual