Davicom Cortex 320, Справочное руководство

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Qualifying element (operand) which can be any input, output, flag, timer, SNMP GET, Logic Gate, etc. Essentially
any ID in the Cortex can be used to mute or unmute the input to prevent it from taking any action. When the Qualifier
is active, the input will be monitored and be able to generate alarms. When the qualifier is non-active (or normal),
the input will be muted and it will not be able to generate an alarm. To invert the Qualifier’s level, simply put a ! in
front of its ID. For example, use !1D01 to invert it. Leave the Qualifier field blank for a “don’t care” condition.
4 – VOLTAGE RANGE
Voltage measuring range of the input. Select a range value which is higher than the maximum voltage expected on
the input. If the input voltage exceeds this value, saturation or signa clipping will occur. On the other hand, be sure
to use a range that is not too high because signal resolution will be lost.
5 – NORMAL VALUE
Expected normal operating value for the input. During operation, a user can click on the corresponding input’s meter
or display box and this value will appear.
6 – DEFAULT VALUE
For inputs from MEXM (Expansion) units only. Default value that the input will take if the Cortex loses
communications with the MEXM.
7 – MEASUREMENT UNIT
Select desired measurement unit, or enter your own. Maximum of 3 characters.
8 – AUTOMATIC LIMIT CHANGE QUALIFIER
ID of an input that will trigger a limit change condition. For example, if a site has a backup transmitter with 50% of
the power of a main transmitter, and ID 1D01 indicates that the site is now operating on the backup^, then this
condition will trigger the application of the Change Multiplier (next item below).
9 – AUTOMATIC LIMIT CHANGE MULTIPLIER
In the example above, the multiplier would be 0.5. This factor is automatically applied to all the alarm limits set in
this Metering input, thereby saving the user the trouble of having to go through all the limits and adjusting them for
the new, lower, power. Very useful to reduce the number of false or nuisance alarms, while still being in full control
of the transmission site. Multiplier can be any number between 0 and 9999.
10 –
DELAY BEFORE ACTION
Delay before the input changes into an active state when an out-of-limit condition occurs. Prevents glitches from
setting-off any alarms.
11 – DELAY BEFORE RETURN TO NORMAL
Delay before the input returns to a normal state once an out-of-limit condition is over. Prevents too-brief returns-to-
normal from causing multiple repeated alarms.
12 – LEVEL 1
Close / open the Level 1 menu. Metering inputs can be set up with 2 alarm levels. Typically a minor alarm for when
a level drops slightly and then a major alarm when it drops significantly.
13 – ACTION TYPE
Selects the action type that will happen when an out-of-limit condition occurs. 3 types are available: Major alarm,
Minor alarm, and Command (CMD). On CMD, no alarm will be triggered. Use this Action when you want to take
actions without triggering any alarms.
14 – LOW LIMIT
Voltage value below which the input state will switch from normal to active. * is a “don’t care” condition.
15 – HIGH LIMIT
Voltage value above which the input state will switch from normal to active. * is a “don’t care” condition.
16 – CONTROLLED OUTPUT
Outputs to be controlled (on/off) based on the state of this input. The two output types allowed are relays (both
physical and virtual) and SNMP SETs. For the relays, adding a P suffix will Pulse the relay (ex: 1R01P), L will Latch
it and R will Release it.
17 – LEVEL 2
Open / close the Level 2 menu. Same as Level 1.
18 – ENABLE
Enable / disable the input. Useful to deactivate an input, without losing all its settings, when the input is causing
intermittent problems or nuisance alarms
19 – QUALIFIER - STATE or DATA
STATE (default setting): the State (Normal or Active) of the input being qualified can change only when the Qualifier
is active. Readings from the input (Current Value) continue to be updated periodically independently from the
Qualifier state.
DATA : Same as the STATE mode, but in this case the readings from the input (Current Value) remain frozen at
their latest values, as long as the Qualifier is not active. This mode is used like a “Sample-and-Hold” for the readings
from the input.