Table of Contents
Advertisement
The DMS-3K has a built-in filter to screen out sub-millisecond contact bounce or noise.
Each Input requires 4 continuous successful samples (at 0.5 msec each) before an alarm is
captured. Time stamp is recorded at first successful sample of the 4.
Automatic Delete From Scan:
This is designed to block inputs that occur beyond a configured frequency. You enter a number
of events over a time period and once it exceeds that level, it will stop more alarms from filling
up the event log until the frequency of alarms falls below the settings. Example: If the setting
was 10 events in 60 seconds and more than 10 events occurred in 60 seconds (input goes in
alarm, returns to normal, goes back in alarm, etc), the system would capture the first 10 events
but stop capturing new alarms. Once the alarm rate dropped below this rate, it would re-enable
this alarm input. This setting can be applied to each input channel individually.
Contact State:
Depending on the contacts used, set the contact for NO (Normally Open) or NC (Normally
Closed). Normally Open = field contact input is open in normal state, closes on alarm
Normally Closed = field contact input is closed in normal state, opens on alarm.
Note: The selection of NO/NC can also be performed via the input module DIP Switches
(reference chapter 6). If the input module dip switch is set for NC, it will override the NO/NC
setting on the web browser.
Control / Sequence Group:
Control/Sequence groups are used for determining the operating sequence which determines
how the lamp outputs, Horn Outputs and Control Pushbuttons (Test, Ack, Reset, etc) function
for a given input. This is used in conjunction with the Pushbutton Inputs and Sequence Group
selections on the Control Inputs Configuration WEB page. For example, if you configure
Sequence M (Manual Reset) on Group 2 (as per the Control Inputs web page) and you want
Alarm Input 7 to follow that sequence, you would select group 2 on the Alarm Inputs page for
that input. Up to 8 Control/Sequence groups are allowed. This is useful when dividing the inputs
up into several First Out Groups. The First Out Sequence will 'flash' the lamp output differently
for the first alarm in that group making it easy to differentiate.
The default is Group 1.
Inhibit Group:
Inhibit Groups are used in conjunction with the Inhibit Switch Input which can disable a group of
inputs. Up to 16 groups are allowed. The Inhibit Switch is configured on the Control Inputs
WEB page. Example, if you wish to disable Alarm Inputs: 1,4,5,8,9,11,45,87 from a single
Inhibit Switch that was configured as Group 3 on the Control Inputs WEB Page, you would
select inhibit group 3 on every input: 1,4,5,8,9,11,45,87
The default is group 1.
58
Advertisement
Table of Contents
