RMS compact
22
If POSEGDE monitoring were used on a Normally Open contact, then the alarm would be triggered
when the contact returns to its normal state.
NEGEDGE:
Primarily used when monitoring
Normally Open (NO)
contacts, the alarm will be triggered
when the contact closure goes from an open state (positive edge signal) to a closed state
(Negative edge signal). Once the alarm has been set, it will need to be manually reset by the
user (using either an SNMP set or using the ‘Reset’ button on the Viewer Programmer
application – this will be explained in more detail later.
The following diagram should help to explain this:
Figure 29 Negative Edge (NEGEDGE) Monitoring
If NEGEDGE monitoring were used on a Normally Closed contact, then the alarm would be triggered
when the contact returns to its normal state.
Note:
Note:
Note:
Note:
POSEDGE and NEGEDGE are used when monitoring sensors which generate transient signals, such as
shock sensors.
Shutdown Targets
The shutdown targets option refers to a feature whereby the user can configure the RMS compact to send a
shutdown signal to servers across the network which are running the appropriate ‘Network Shutdown Software’,
upon receipt of an alarm from an Uninterruptible Power Supply
Note:
Note:
Note:
Note:
If you wish to use this feature, you must purchase an additional ‘Network Shutdown Software’ to run on
each server on which shutdown is required, plus a licecnce key to enable this feature on the RMS
compact. To obtain more information about this software, please contact [email protected]
This feature is designed for use with an Uninterruptible Power Supply only
•
Firstly, Select "Shutdown Targets" in the RMS compact configuration screen (via HyperTerminal), this
should display the following screen:
Knuerr RMS compact version X.X.X
Embedded Agent Setup
Number of Targets Licenced: 0
1. Update Target Licence Key
2. Powerfail timer
3. Battery depletion timer
4. Shutdown Targets 1-20
5. Shutdown Targets 21-40
6. Shutdown Targets 41-60
7. Shutdown Targets 61-80
8. Shutdown Targets 81-100
9. Exit Shutdown Target Setup
Enter choice (ESC to exit):
Figure 30 Shutdown Targets Configuration
Signal state
for a normally
open digital
input
+
Alarm Condition
(contact closes)
-
Return to Normal
(contact opens)
Alarm condition
still present,
until manually
reset by the
user