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Reference Manual
300530EN, Rev BA
September 2012
C-7
Rosemount 2410
Appendix C. Advanced Configuration
Virtual Relay States
There are three virtual relay states available:
Table C-1. 2410 Relay States
Virtual Relay Output
The Virtual Relay Output setting determines whether the relays are active or
disabled.
Table C-2. 2410 Relay Control
Modes
Source
Specifies the measurement variable that triggers the relay switching.
“Tank Name/Tank Position” refers to the tank position in the Rosemount 2410
Tank Database. The Tank Database maps all devices connected to the 2410
Tank Hub to the specific tanks, see the Raptor System Configuration Manual
(Document no. 300510EN) for more information about configuration of the
2410 Tank Database.
Tank Parameter refers to the measurement variable that triggers the relay
switching. For example, Level, Delta_Level, Ullage or any other variable can
be chosen as source.
Switch Delay
This is the delay time for the relay to switch into alarm state, i.e. the amount of
time it takes for a relay to respond to an alarm. You can use this parameter to
prevent the relay from switching due to small temporary variations of the
source signal. This may for example occur if there is a turbulent product
surface.
Toggle Period
When the relay is in Toggle state it switches between On and Off at a rate
defined by the Toggle Period.
Virtual Relay State Description
Alarm In the Alarm state the relay is de-energized. Depending on how the
relays are connected, they will be either open or closed in the
de-energized state.
Note that a relay defined as Normally Open will be open in the Alarm
state.
If the relay is configured as Normally Closed it will be closed in the
Alarm state.
Normal In the Normal state the relay is energized.
Toggle The relay switches periodically between Normal and Alarm
Virtual Relay Output Description
Disabled The relay function is turned off.
Relay 1/Relay 2 Specifies the actual relay that the Relay Output is connected to.
The Rosemount 2410 Tank Hub can be equipped with one or two
relays.