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Overview of the Temperature Input Units Section 6-1
6-1-4 List of Data Processing Functions
GRT1-TS2@ Temperature Input Units
6-1-5 Data Processing Flowcharts
Temperature Input Value 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
Other Operation Results 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)
Function Details Default
Moving average Calculates the average of the past eight temperature input
values, and produces a stable input value even when the
input value is unsteady.
Moving average disabled.
Scaling 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.
Disabled (0 to 28,000)
Peak/bottom hold Holds the maximum and minimum temperature input val-
ues.
Disabled
Top/valley hold Holds the top and valley values for temperature input val-
ues.
Disabled
Rate of change Calculates the rate of change for temperature input values. Disabled
Comparator 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.
Disabled
Off-wire detection Detects disconnections of sensors. Enabled
Input error detection disable Detection of input errors, including off-wire detection, can
be disabled. This setting would be used for inputs that are
not used.
Disabled
User adjustment An offset caused by hardware inaccuracy (or other factor)
can be corrected with an arbitrary user-set input value.
Disabled
Last maintenance date Records the date of the last maintenance in the Unit. 2007/1/1
Data comparison between
channels
Calculates the difference in temperature between the two
input channels to enable a relative comparison.
Disabled
Replace-
ment
monitor-
ing
functions
Cumulated count Calculates the total heat exposure of a device or sensor by
integrating the temperature over the measurement time.
Disabled
Top/valley count Counts the number of heating cycles handled by a device or
application that has fixed cycles of temperature change.
Disabled
Temperature range
total time
Measures how long the system is at a user-set temperature
or within a user-set temperature range.
Disabled
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