List Of Data Processing Functions; Data Processing Flowcharts - Omron GRT1 - 11-2007 Operation Manual

Overview of the Temperature Input Units
6-1-4

List of Data Processing Functions

GRT1-TS2@ Temperature Input Units
Function
Moving average
Scaling
Peak/bottom hold
Top/valley hold
Rate of change
Comparator
Off-wire detection
Input error detection disable
User adjustment
Last maintenance date
Data comparison between
channels
Replace- Cumulated count
ment
monitor-
Top/valley count
ing
functions
Temperature range
total time
6-1-5

Data Processing Flowcharts

Temperature Input Value
Other Operation Results
Details
Calculates the average of the past eight temperature input
values, and produces a stable input value even when the
input value is unsteady.
Performs scaling.
The unit can be converted to default upper and lower limits
to reduce the number of operations requiring ladder pro-
gramming in the Master CPU Unit. Scaling also supports an
offset function for compensating for mounting errors in sen-
sors and other devices.
Holds the maximum and minimum temperature input val-
ues.
Holds the top and valley values for temperature input val-
ues.
Calculates the rate of change for temperature input values.
Compares the temperature input value or an data after
math processing (i.e., value for peak, bottom, top, valley,
rate of change) with the four set values HH, H, L, and LL,
and indicates the result with the Temperature Status Flags.
Detects disconnections of sensors.
Detection of input errors, including off-wire detection, can
be disabled. This setting would be used for inputs that are
not used.
An offset caused by hardware inaccuracy (or other factor)
can be corrected with an arbitrary user-set input value.
Records the date of the last maintenance in the Unit.
Calculates the difference in temperature between the two
input channels to enable a relative comparison.
Calculates the total heat exposure of a device or sensor by
integrating the temperature over the measurement time.
Counts the number of heating cycles handled by a device or
application that has fixed cycles of temperature change.
Measures how long the system is at a user-set temperature
or within a user-set temperature range.
The following math operations can be performed on the external temperature
input value. The values obtained after processing (temperature input values)
can be allocated for the Master.
• Scaling as required by the user
• Moving average processing
After moving average and scaling processing, the temperature input value can
be processed using the following operations. The values after processing are
called peak value, bottom value, top value, valley value, rate of change, and
cumulated value.
• Peak/bottom operation
• Top/valley operation
• Rate of change operation
• Cumulative operation (maintenance function)
Section 6-1
Default
Moving average disabled.
Disabled (0 to 28,000)
Disabled
Disabled
Disabled
Disabled
Enabled
Disabled
Disabled
2007/1/1
Disabled
Disabled
Disabled
Disabled
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