Davicom Cortex Series, Справочное руководство

Страница: 80 / 92

80
7 – 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.
8 – DEFAULT VALUE
For inputs from MEXM (Expansion) units only. Default value that the input will take if the Cortex looses
communications with the MEXM.
9 –
MEASUREMENT UNIT
Select desired measurement unit, or enter your own. Maximum of 3 characters.
10 – POLLING INTERVAL
Amount of time between each SNMP GET polling request.
11 –
TEST GET
Manually generate a GET request (for testing purpose) to the configured IP address and OID.
12 – 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.
13 – 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.
14 –
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.
15 –
LOW LIMIT
Voltage value below which the input state will switch from normal to active. * is a don’t care condition.
16 – HIGH LIMIT
Voltage value above which the input state will switch from normal to active. * is a don’t care condition.
17 –
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.
18–
LEVEL 2
Open / close the Level 2 menu. Same as Level 1.
19 – 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.
20 – PORT
SNMP IP port number of selected SNMP GET input. Default is 161.
21 – VALUE TYPE
Type of value to be read (polled) from the equipment. Different types are available, like Integer, Display String,
Gauge, Truth Value, etc. Must match the value type of the polled output of the equipment.
22 – COMMUNITY
SNMP community name. Must match the community name of the polled equipment.
23 –
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.
24 – SENSOR COEFFICIENTS
Virtual curve-fitting feature that allows compensation for gain, offset, inversion and even 2
nd
-order non-linearity of
input sensors. A is the 2
nd
-order compensation, B is the gain (and inversion) while C is the offset. When D is 1, then
a base 10 Log is applied to calculate decibels. Default values are A=0, B=1, C=0 and D=0, giving a direct 1 to 1
relation between the measured voltage or current and the sensor’s output.
25 –
SIGNALLING ON – ALARM
Enables / disables alarming. When checked, any out-of-limit condition will automatically generate an alarm. When
unchecked, no alarm will be triggered when an out-of-limit condition occurs.
26 – FAILURE
Generates an alarm opon SNMP GET reading failure. Many factors can prevent a reading from taking place. The
Parameters section of the SNMP Get menu screen is particularly important. Check for any erronous or missing