190 Rockwell Automation Publication 1783-UM007G-EN-P - February 2017
Chapter 7 Configure Switch Features
Configure Alarms via Device Manager
The switch software monitors conditions on a per port or a global basis. If the
conditions do not match the set parameters, an alarm or a system message is
triggered. By default, the switch sends the system messages to a logging facility.
You can configure the switch to send SNMP traps to an SNMP server. You can
also configure the switch to trigger an external alarm device by using the two
independent alarm relays.
Alarm Relay Settings
You can configure the switch to trigger an external alarm device. The switch
software is configured to detect faults that are used to energize the relay coil
and change the state on both of the relay contacts. Normally open contacts
close and normally closed contacts open.
To configure alarm relay settings, from the Configure menu, choose
Alarm Settings.
On the Alarm Relay Setup tab, click one of these options for each type of alarm
relay:
• Normally Opened—The normal condition is that no current flows
through the contact. The alarm is generated when current flows.
• Normally Closed—The normal condition has current that flows
through the contact. The alarm is generated when the current stops
flowing.
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