Table 14-3. CS40 Dual Two Loop Cascade Controller Datapoints
Data-
point Table Module Title and Function
De-
fault
AI0 - #1 Primary Process Variable
C256 5-4 AI0 Engineering Span - Enter a value, that when added to the
Engineering Zero value, will produce an upper range value in
engineering units that represents the #1Primary Variable
transducer upper range signal value.
100
C276 5-4 AI0 Engineering Zero - Enter a value that represents in
engineering units the #1 Primary Variable transducer lower
range signal value.
0
B269 5-4 AI0 Digital Filter Index - This is a first order filter that can be
applied to the #1 Primary Variable transducer signal. See
Table 5-4 for input values.
3
L416 5-4 AI0 0-5 V Input - Enter a value that matches the signal voltage
range of the #1 Primary Variable transducer. 1 = 0 - 5 V
range; 0 = 1 - 5 V range.
0
L440 5-4 AI0 Square Root Signal - It is used if the #1 Primary Variable
transducer is a nonlinear differential pressure (DP) cell that
provides a squared signal value. 0 = input is already linear;
1 = square root to restore linearization.
0
AI1 - #2 Primary Process Variable
C257 5-4 AI1 Engineering Span - Enter a value, that when added to
Engineering Zero, will produce an upper range value in
engineering units that represents the #2 Primary Variable
transducer upper range signal value.
0
C277 5-4 AI1 Engineering Zero - Enter a value that represents in
engineering units the #2 Primary Variable transducer lower
range signal value.
0
B270 5-4 AI1 Digital Filter Index - This is a first order filter that can be
applied to the #2 Primary Variable transducer signal. See
Table 5-4 for input values.
3
L417 5-4 AI1 0-5 V Input - Enter a value that matches the signal voltage
range of the #2 Primary Variable transducer. 1 = 0 - 5 V
range; 0 = 1 - 5 V range.
0
L441 5-4 AI1 Square Root Signal - It is used if the #2 Primary Variable
transducer is a nonlinear differential pressure (DP) cell that
provides a squared signal value. 0 = input is already linear;
1 = square root to restore linearization.
0
AI2 - #1 Secondary Process Variable
C258 5-4 AI2 Engineering Span - Set to 100 by CS40; however, it can be
changed. Enter a value, that when added to the Engineering
Zero value, will produce an upper range value in engineering
units that represents the #1 Secondary Variable transducer
upper range signal value.
0
C278 5-4 AI2 Engineering Zero - Enter a value that represents in
engineering units the #1 Secondary Variable transducer
lower range signal value.
0
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Section 14. CS40 - Dual Two Loop Cascade Controller
14-7