16.4.2 About EZ Illuminated Switch

You can use EZ Illuminated Switch as an external switch, lamp or function key. You can also use it to check status of alarms by linking it with alarm history.

Block Designation

You link the EZ Illuminated Switch with the alarm history using blocks as a unit. You can use either [All blocks] or [Select blocks]. What is linked with the EZ Illuminated Switch varies depending on which option is selected.

• All blocks

Monitor/operate all alarm history in the display unit with the EZ Illuminated Switch. Assign alarm status (one from either triggered/acknowledged/recovered) to separate switches on the EZ Illuminated Switch.

• Individual Specification

Monitor/operate alarm history for each line/equipment with a single switch. Link alarm history to monitor/operate each switch on the EZ Illuminated Switch. You can change colors of switches depending on the alarm status and level.

Function Key

In order to link the EZ Illuminated Switch with alarm, you must assign a lamp alarm part.

If you want to display alarm history for the whole project, set a lamp alarm part to a global function. If you want to display alarm history for each screen, set a lamp alarm part to a screen function (local function).

• Global Function

The switch flashes when an alarm occurs in any screen.

• Local Function

The switch flashes when an alarm occurs in the specified screen. It does not flash when an alarm occurs in any other screen.

Lighting of the EZ Illuminated Switch for which Alarm is Linked

The state that you can set up for the lamp depends on the alarm history display method (History/Log/Active).

• History/Log

Displays the Triggered, Acknowledged, and Recovery states.

• Active

Displays the Triggered and Acknowledged states.