beautypg.com

Chapter 12 – capturing alarms and events, Using alarm/events, Monitoring alarms with the event (alarm) log – Watlow EZwarePlus Programming User Manual

Page 185

background image

EZwarePlus Programming Manual

177

Chapter 12 – Capturing Alarms and Events

This chapter looks at how the HMI5000P Series uses alarms and events.

Using Alarm/Events

EZwarePlus has four parts that are used to perform alarm/event functions: the Event (Alarm) Log object, the Alarm

Display object, the Alarm Bar object, and the Event Display object. The Event (Alarm) Log object monitors

alarm/event conditions and alerts the Alarm Display object, the Alarm Bar object, and the Event Display object when

an alarm/event condition occurs. Use the Alarm Display object if you want to display a scrollable list of all

alarm/events that are active. Use the Alarm Bar object to display all active alarm/events on a single horizontally

scrolling line (like a marquee). Use the Event Display object to display all alarm/events and their status (active

alarm/events, acknowledged alarm/events, returned to normal alarm/events),

Note: Alarms and events are handled in the same way by EZwarePlus, so reference will be made to alarms only rather

than alarm/events for the remainder of this chapter, except for reference to the Event (Alarm) Log.

Monitoring Alarms with the Event (Alarm) Log

The Event (Alarm) Log continuously monitors PLC coils and registers to determine if an alarm condition has occurred.

Once an alarm is active, the Event (Alarm) Log directs a string of characters associated with that alarm to the Alarm

Display object, the Alarm Bar object, and the Event Display object for display on the HMI screen.

To create an Alarm/Event Log:

1. From the Objects menu, select Alarm > Event (Alarm) Log, or click the Event (Alarm) Log icon in the PLC

toolbar. The Event (Alarm) Log dialog box appears.

2. Click the New... button. The Alarm (Event) Log Properties dialog appears.

1010-1015, Rev. 03