Siemens 353 User Manual

UM353-1B Factory Configured Options
April 2012
4-11
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.
SETPT
TV
TC O1
AIN1
QS
O1
AOUT1
QS
ALARM
A1
A2
A3
A4
A/M
O1
AS
NA
MS
ES
SS
PID
O1
AE
AW
SR
P
D
A
TV
TC
EM
S
D
P
S
F
A
I
LU
LD
Valve
Process
S
P
V
LOOP01
SETPT
TV
TC O1
AIN2
QS
O1
AOUT2
QS
ALARM
A1
A2
A3
A4
A/M
O1
AS
NA
MS
ES
SS
PID
O1
AE
AW
SR
P
D
A
TV
TC
EM
S
D
P
S
F
A
I
LU
LD
Valve
Process
S
P
V
LOOP02
Rev. 2
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
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

Siemens 353 Specifications

General

CPU	CPU 353
Inputs	16 digital inputs, 24 V DC
Outputs	16 digital outputs, 24 V DC, 0.5 A
Communication	MPI
Power Supply	24 V DC