Emerson E2 12.10.5 Ack/Reset State, Area Ctrl Application Property, Advisory Message

Forced-To-Normal Alarms

For as long as the condition that caused the alarm mes- sage exists, the State field will show either ALARM, NOTICE, or FAIL as appropriate to the alarm type. How- ever, if the condition that caused the alarm, notice, or fail- ure is corrected, the message shown in the State field will change to signify the correction.

There are two ways an alarm, notice, or failure condi- tion may be corrected:

•Return-To-Normal - “Return-To-Normal” means the condition that generated the alarm, notice, or failure has returned to normal on its own, or the E2 has automatically corrected the condition. If an alarm returns to normal, a “N-” will appear in front of the alarm state in the State field.

•Reset (Forced)-To-Normal - “Reset-To-Normal” means the E2 has been forced by a user to consider the condition “normalized” for purposes of alarm control. A Reset-To-Normal occurs when an alarm is reset using the Alarm Reset button  (ALARM RST). If an alarm is forced to normal, an “R-” will appear in front of the alarm state in the State field.

Table 12-9lists the nine possible state messages as they appear in the State field.

Advisory Type	Condition	Condition	Condition
	Still Exists	Returned To	Reset to
		Normal	Normal
Alarms	ALARM	N-ALM	R-ALM
Notices	NOTCE	N-NTC	R-NTC
Failures	FAIL	N-FL	R-FL

Table 12-9- Alarm States

12.10.5 Ack/Reset State

The State field also shows whether or not an advisory record has been acknowledged or reset by a user. If an alarm has been acknowledged or reset, a dash “—” will appear at the end of the State field. If an alarm has not been acknowledged or reset, an asterisk “*” will appear at the end of the State field.

12.10.6Area Ctrl: Application: Property

This column describes where the alarm, notice, or fail- ure was generated from. Alarms and notices can either be generated within the E2 system or from an input value that is higher or lower than an alarm or notice setpoint defined during the system configuration process.

12.10.7 Advisory Message

The Advisory Message column is a brief description of the alarm, notice, or failure. Because of screen size con- straints, it is often the case that the full advisory message will not be displayed in the Message field. To view the full advisory message, as well as the alarm priority and other important alarm information, press  (EXPD INFO) for Expanded Information.

Figure 12-21- Expanded Info Screen

12.10.8Acknowledging, Resetting, and Clearing Log Entries

12.10.8.1 Acknowledging

When an alarm, notice, or failure is acknowledged, the alarm stays in the Alarm Log, but all annunciation of the alarm is suspended until the alarm is reset or cleared. As stated in Section 12.10.5, the state of the alarm or notice will also change to a dash “—” indicating acknowl- edgement.

When you acknowledge an alarm, you prevent it from ever annunciating again in any way until you manually reset or clear the alarm. A condition that causes an alarm will never automatically return to normal when it is acknowledged.

For setting acknowledging permissions, see Section 10.12.1, Changing Required User Access Levels.

Alarms Operator’s Guide to Using the E2 • 12-13