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UM353-1
4.7 FCO107 - Dual Loop Controller
Factory Configured Option FCO107 provides two independent loops with tracking setpoints. The block diagram of
the configuration of the two loops is shown below along with the changes made to the default parameter values of
the configured blocks. This configuration provides setpoint tracking. If a fixed setpoint is desired, the TC input to
the SETPT function block can be set to UNCONFIG. The process range of the first loop can be changed in Analog
Input 1 and the range of the Second loop in Analog Input 2.
TV
SETPT
TC
SR
LU
LD
Process
O1
AIN1
QS
P
D
ALARM
TV
SETPT
TC
SR
LU
LD
Process
O1
AIN2
QS
P
D
ALARM
Loop 01
SETPT - Setpoint Function Block
RG PTR - Range Pointer --------- LOOP01.AIN1.OR
INPUT TV - Input TV ------------ LOOP01.AIN1.O1
INPUT TC - Input TC ------------ LOOP01.A/M.NA
ESN - Exec. Seq. No.------------- 5
ALARM - Alarm Function Block
RG PTR - Range Pointer -------- LOOP01.AIN1.OR
INPUT P - Input P --------------- LOOP01.AIN1.O1
INPUT D - Input D -------------- LOOP01.SETPT.O1
ESN - Exec. Seq. No. ----------- 10
March 2003
O1
S
P
S
F
P
A
I
A1
A2
A3
A4
O1
S
P
S
F
P
A
I
A1
A2
A3
A4
PID - PID Controller Function Block
RG PTR - Range Pointer --------- LOOP01..AIN1.OR
INPUT P - Input P ---------------- LOOP01.AIN1.O1
INPUT S - Input S ---------------- LOOP01.SETPT.O1
INPUT F - Input F ---------------- LOOP01.A/M.O1
INPUT A - Input A --------------- LOOP01..A/M.AS
ESN - Exec. Seq. No.------------- 15
A/M - Auto/Manual Function Block
RG PTR - Range Pointer -------- LOOP01.PID.OR
INPUT A - Input A -------------- LOOP01.PID.O1
ESN - Exec. Seq. No. ------------ 20
Factory Configured Options
O1
A
O1
PID
AE
TV
AS
A/M
AW
TC
NA
EM
MS
ES
SS
O1
A
O1
PID
AE
TV
AS
A/M
AW
TC
NA
EM
MS
ES
SS
Rev. 2
Valve
S
AOUT1
D
QS
V
LOOP01
Valve
S
AOUT2
D
QS
V
LOOP02
4-11
- Quick Links:
- Function Blocks
- Error Codes
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