Comet MS6D, Инструкция по эксплуатации, Страница: 36 / 56

36 ie-ms2-MS6-10
Record of binary channels behaves analogically as sampled record, when each change on binary
inputs is stored. Value is replaced by text description, which corresponds with user configuration.
6.6. Bookmark Ch..Conditions
Condition defines certain state of measured value (exceeding of adjusted limit
upwards/downwards, defined state of binary input) on specified input channel. It can have two
states: valid-invalid. Up to four independent conditions at one channel can be defined. Creation of
alarm states depends on state of conditions and sampled and conditional record can be controlled
by them:
Data logger enables to set condition depending on measured value, on time and condition, which validity is
remotely controlled. Each from four conditions it is possible to switch on for evaluation. Binary inputs has
lower number of possibilities to set conditions, setting is analogical.
A)
If there is a need to activate some actions dependent on Measured value, select Start of validity: Input
value
Example:
Select, if condition will be valid, if measured (Input) value is higher or lower than adjusted limit (170) and
how long must this state last without interruption. Than condition becomes valid (30s, maximum 65535s).
Define further circumstances for termination of condition validity. If no validity termination is defined,
condition remains permanently valid (till change of data logger configuration). You can select validity
termination after value return back with hysteresis (2) OR (optionally AND) if defined time expired
(maximum 65535 s).
You can also define, how the state of the condition works if measurement error appears:
If other devices are controlled based on validity of the condition (relay outputs, sending of
SMS message, audible indication etc.), always use nonzero hysteresis and nonzero time
delay for creation of condition validity to avoid false alarms at transient effects of input
measured
value,
channel state
or time value
condition 1 valid/invalid
condition 2 valid/invalid
condition 3 valid/invalid
condition 4 valid/invalid
conditioned data
record
sampled data
record
ALARM 1
ALARM 2