ERL tesla lite, User Manual, Page: 113 / 288

8 Configuring the Recorder
D03283R01.10 TESLA LITE User Manual 8-35
8.13 Logic Functions
Description
Logic Functions are boolean logic statements that can be applied to External
Input Channels and trigger detectors from other channels. You can choose up
to 5 inputs, each of which may be inverted, and specify a chain of logic oper-
ations to be performed on each.
Input
Up to 5 inputs. Each can be an External Input Channel or the output of a trigger
detector from any channel, including other Logic Functions with lower Index-
es.
Calculation
Boolean logic is applied to each input in succession.
Triggers
• Active state
• Inactive state
Recording
Logic Functions are not recorded.
Number of
Channels
15 Logic Functions are available.
Types
Logic
Notes
The output of the Logic functions is available to the metering display, SCADA
and the long term trending function.
Priority Specifies the priority to be assigned to records created by this trigger.
The priority is used to determine Central Station notification.
1 - 3 (3 is the highest priority). (“Notify” on page 7-13).
Alarm Contact Specifies a rear panel contact to be closed when triggered. Contacts
are closed momentarily for one second. Contact assignment is not
exclusive, allowing multiple triggers to activate the same contact.
Contacts assigned for storage alarms (“TESLA Alarms” on page 8-6)
will not be available for use here.
Table 8.14: Frequency Channel Settings