Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller FLEXIBLE CONTROL STRATEGIES - Manual (Page 78)

If ANI0 is less than ANI1, the following event sequence occurs as described in Table 3-6:
Table 3-6. High/Low Selector - ANI0 < ANI1
Step Module Input(s) Output(s) Comments
1 ANI ANI0 (C020) and
ANI1 (C021).
2 Math A ANI0 (B123) and
ANI1 (B124). L098 = 0 (False compare, ANI0
< ANI1).
3 Logic A B127 = 1 and
B128 = 1. L097 = 1. FC = 128 or A NOT;
therefore, two 0’s in =
a 1 out.
4 SP Gen 0 B149 = 1, which
inhibits setpoint
tracking (the 1 input is
inverted to a 0 within
the SP Gen 0 module).
B148 = ANI0 value
(from step 1 output)
B150 = ANI1 value
(from step 1 output)
B151 is tied to a
steady 1 from L071,
which enables remote
setpoint. C101 = ANI1
L104 = 0 to indicate
setpoint tracking is not
selected. Remote setpoint is
enabled.
5 Logic B B130 = 0 and
B131 = 0. L096 = 1, which
inhibits B142 of Param
D (ANI1 span). FC = 128 or A NOT;
therefore, two 0’s in =
a 1 out.
6 Param C B139 = L104 (0 from
step 4 output), whic
inhibits Param C
output.
7 Param D B142 = L096 (1 from
step 5 output), which
enables Param D
output. B144 = ANI1 span
value. The ANI1 span value
is gated through the
Param D module to
datapoint C005.
8 Datapoint
C005 C005 = B144 (from
step 6 output). ANI1 span value.
9 Math B B162 = C101 (ANI1
value from step 4 SP
Gen 0 output ).
B163 = ANI1 span
value from C005. C031 = ANI1 value
augmented by the
Math B function code 4
algorithm.
10 ANO’s B100 = C031, which is
the augmented ANI1
value. ANO0 = B100 =
augmented ANI1 value.
Section 3. FCS Wirelist Examples
EX3
3-13