Response Electronics CL6011B Dokumentacja Strona 62

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3Ć42 Theory of Operation: Point Processing
Original Ć June 1990CE4.2:CL6211
Figure 3Ć11Ć13. PI/PID/I Auto/Man/RSP Loop Point Block Diagram
TO
ALARM C
HIGH OR LOW (C)
TRIP POINT (T)
DEADBAND (T)
ALARM
C
ALARM
B
HIGH OR LOW (C)
TRIP POINT (T)
DEADBAND (T)
TRIP POINT (T)
DEVIATION
ALARM (0)
ALARM B (0)
NOTE: ONLY ONE
DEADBAND MAY BE
SPECIFIED FOR ALL
THREE ALARMS.
DEVIATION
ALARM
REVERSE OR
GAIN (T)
RESET (T)
RATE (T)
ARW HIGH LIMIT (T)
ARW LOW LIMIT (T)
RESTART LAST MODE? (C)
RESTART MODE (T)
MODE CONTROL
FROM CONSOLE OR
TO
MODE
LOGIC
YES OR NO (C)
RESTART
RESTART
LAST IVP?
MANUAL OUTPUT (0)
FROM CONSOLE OR
OUTPUT
TRANSFER
OUTPUT
TRACKING
IVP
LIMITS
VALVE
ACTION
CONTROLLER
CURRENT
OUTPUT
OUTPUT TRACKING/NORMAL (O)
IVP HIGH LIMIT (T)
IVP LOW LIMIT (T)
INCREASE OPEN/CLOSE (T)
TO
OPERATOR
IVP (0)
PROCESS
VARIABLE
DEVIATION
CONTROL
ACTION
PID
ARW
SET POINT
TRANSFER
SP (0)
SSSSS
SSS
SS
S
SS
SSS S
SSS
SS
SS
TO
YES OR NO (C)
RESTART
LAST SP
RESTART
SET POINT (T)
SS
SP TRACKS
IN MAN
PV (0)
TRACK
VALUE
VALVE
ACTION
NOTE: OUTPUT TRACKING
TAKES PRECEDENCE
OVER INTEGRAL TRACKING
WHEN BOTH INPUTS
TRACK
CONTROL
INCREASE
OPEN/CLOSE (T)
S
REMOTE
SET POINT
VALUE
OUTPUT
OVERRIDES
MANUAL? (C)
S
SP HIGH
LIMIT (T)
SP LOW
LIMIT (T)
Adaptive Gain PI/PID/I Auto/Man/RSP Contoller Block Diagram
DEADBAND (T)
YES OR
NO (C)
S
MODE (O)
OPERATOR STATION
OPERATOR STATION
AND DATA HIGHWAY
STATION
OPERATOR
DATA
HIGHWAY
TO
DATA
HIGHWAY
TO
OPERATOR
STATION AND
ARE SET
TRACKING
SET POINT
LIMITS
(O)
DIRECT (T)
NOTES:
(C)
(T)
(O)
CONFIGURE
TUNE
OPERATE
ANALOG SIGNALS
DISCRETE SIGNALS
IVP(T)
TO
OPERATOR
STATION
OR
ALARM B OR C (0)
DATA
HIGHWAY
LOCAL SET
POINT FROM
CONSOLE
OR OPERATOR
STATION (O)
OPERATOR STATION
NOTE: RATE ACTION ON PV ONLY
AND DATA
HIGHWAY
STATION
AND DATA
HIGHWAY
TO OPERATOR
STATION AND
DATA HIGHWAY
OUTPUT
TRACK
LOGIC
INTEGRAL
TRACK
LOGIC
SET POINT
VELOCITY
LIMIT
YES OR NO (C)
VELOCITY LIMIT (T)
DEVIATION
OUTLET SVA
INLET SVA
SEE NOTE B
SS
SEE NOTE A
NOTE A:
PV ADAPTIVE GAIN ENABLE (C)
PV LOW BREAKPOINT (T)
PV HIGH BREAKPOINT (T)
PV LOW GAIN FACTOR (T)
PV HIGH GAIN FACTOR (T)
DEVIATION ADAPTIVE GAIN ENABLE (C)
DEVIATION LOW BREAKPOINT (T)
DEVIATION HIGH BREAKPOINT (T)
DEVIATION LOW GAIN FACTOR (T)
DEVIATION HIGH GAIN FACTOR (T)
VO ADAPTIVE GAIN ENABLE (C)
VO LOW BREAKPOINT (T)
VO HIGH BREAKPOINT (T)
VO LOW GAIN FACTOR (T)
VO HIGH GAIN FACTOR (T)
GAIN LIMIT (T)
SSSSSSSSSSSSSSS S
NOTE B:
FEEDFORWARD FUNCTION LOCATION;
REFER TO FST SECTION FOR FDFW
DESCRIPTION
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