Viewing The Time At Which An Event Occurred; Enabling And Disabling Points; Forcing Points On And Off; Returning A Point To Automatic Operation - Simplex 4010ES Operator's Manual

4.
a. Time. Use the < and > keys to move the underline character between hours and minutes. Use the Next and Previous keys to
increment or decrement the value. For example, to change the minutes, first use the < and > keys to move the highlight under
the minutes field. Then use the Next and Previous keys to change the value of the minutes field.
b. Date. Use the < and > keys to move the underline character between the components of the date field. Use the Next and
Previous keys to increment or decrement the value of the field until it is correct.
5. When the date and time are correct, press the ENTER key.
8.3

Viewing the time at which an event occurred

The system records the time at which each alarm, trouble, and supervisory event occurs. You can view this information in one of two ways:
• By displaying or printing the historical alarm or trouble log. Refer to
this.
• By scrolling through the list of active alarm, trouble, or supervisory conditions, selecting a specific event, and using the Event Time
key. Refer to the procedure below for information on doing this.
Procedure
Select the alarm, trouble, or supervisory event whose event time you want to display. To do this, follow these steps:
• Press the FIRE ALARM ACK, PRIORITY 2 ACK, TROUBLE ACK, or SUPV. ACK key to enter the appropriate list of events. (For
example, press the FIRE ALARM ACK key to enter the list of active fire alarms.)
• Use the Next and Previous keys to scroll through the list until the alarm in which you are interested is displayed.
• Press the Event Time key. The time at which the alarm, priority 2 alarm, trouble, or supervisory occurred appears in the display.
8.4

Enabling and disabling points

Enabling and disabling points is sometimes necessary when performing maintenance on the system. When using this function, it is critical
that you understand whether Custom Control (either the system's default Custom Control or any user Custom Control) makes reference to
the point or not. Actions driven by custom control are suspended for the duration of time the point is disabled, but execute immediately
after the point is enabled.
Example. Suppose you disable a signal point and during the time the point is disabled, a Custom Control equation executes that turns the
point ON. This action is suspended for the duration of time the point is disabled. However, when the point is subsequently enabled, the
point's state updates and the Custom Control equation turning the point ON executes, turning the signal ON.
Follow these steps to enable or disable a point.
1. Select the point. Refer to
2. Press the Disable or Enable key.
3. Press the ENTER key to carry out the action.
The system generates a Disable Trouble to remind you that the point is disabled. When you enable the point again, the trouble
clears.
8.5

Forcing points on and off

Forcing a control point ON assigns a priority of 1 to the point, preventing system control until the point is returned to automatic control.
For example, you can force a relay or signal point ON to test or execute its function. Unlike Enable/Disable (see description in previous
section), a point that you force OFF does not refresh its state when the point is turned back ON.
Example. Suppose you turn a signal point OFF and during the time the point is disabled, a Custom Control equation executes that turns
the point ON. When the point is subsequently returned to automatic operation, the point's state does not update and the Custom Control
equation turning the point ON does not execute. Points that have been returned to automatic operation will update the next time an
equation that outputs to that point is evaluated.
Follow these steps to force a point ON or OFF.
1. Select the point. Refer to
2. Press the ON or OFF key.
Press the ENTER key to carry out the action.
3.
The system generates a Manual Override Trouble for the point to remind you that the point has been forced ON or OFF.
8.5.1

Returning a point to automatic operation

Automatic operation is the normal operation of the point. For example, if the point is a signal point, a setting of AUTOMATIC indicates that
the point is back under system control.
To return the state of a point that is currently ON or OFF to AUTOMATIC, follow these steps.
1. Select the point. Refer to
page 25
Selecting points for status and control
Selecting points for status and control
Selecting points for status and control
4010ES Fire Alarm Operator's Manual
Displaying and clearing historical logs
for information on selecting points.
for information on selecting points.
for information on selecting points.
for information on doing
579-969 Rev E