Delta AS Series Manual page 175

Ch ap te r 6 Te mper a tu re Me asur eme n t Mod ul e AS0 4/0 6RTD
6. Channel Detection
If an input signal exceeds the allowable range of inputs, an error message appears. You can disable this
function so that the module does not produce an alarm or a warning when the input signal exceeds the
input range.
7. Limit Detections for Channels
This function saves the maximum and minimum values for channels so that you can determine the peak to
peak values.
Valu e o f the chan nel
8. Records for Channels
Record the input values of the cyclic sampling for each channel. The system saves up to 500 data
points for AS04RTD-A and up to 200 data points for AS06RTD-A and the recording time is 100 ms. The
following uses AS04RTD-A as an example to demonstrate.
Valu e o f the chan nel
Instru cti on for recordi ng
9. PID control
PID algorithm is available for every channel. With its auto tuning function, parameters such as Kp, Ki, Kd
and more can be calculated and therefore temperature control can be achieved. You can also use
DMPID instruction to calculate relative parameters by entering the parameters in the endpoints of
corresponding instruction image and you can then obtain the output values from the output endpoints.
Note: DMPID instruction is availbe for AS04RTD-A (V1.04 or later), AS06RTD-A (V1.00 or later), AS
Series PLC (V1.06 or later) and AS-SCM (V2.04 or later).
Maximum valu e
Mini mu m va lue
500 records o f d ata
Recordin g e nds
Time
Ti me
6 - 1 7
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