EN1I-6240
PREFACE
This manual is intended for use in support of day-to-day operation of the
Honeywell DCP 100T Digital Controller Programmer. For information on
installation, commissioning, configuration etc., refer to the associated
Installation Manual (see below).
Associated Documents
Title Document No.
DCP 100T Digital Controller Programmer Installation ManualEN1I-6241
In normal operation, the operator must not remove the
controller from its housing or have unrestricted access to
the rear terminals, as this would provide potential contact
with hazardous live parts.
Installation and configuration must be undertaken by
technically competent servicing personnel. This is covered
in the Installation Manual (see above).
Con tents
1 IN TRO DUC ING THE DCP 100T 1-1
2 FRONT PANEL CON TROLS, IN DI CA TORS
AND DIS PLAYS 2-1
2.1 Con trols 2-1
2.2 In di ca tors 2-2
2.3 Dis plays 2-3
2.4 Alarm Status In di ca tion 2-4
2.5 View ing Pro gram and Con trol ler Pa rame ters 2-4
3 PRO GRAMS 3-1
3.1 Se lect ing and Run ning a Pro gram 3-1
3.2 Chang ing the Pro gram Ti me base 3-1
3.3 Hold ing a Pro gram Manu ally 3-1
3.4 Jump ing to the Next Seg ment 3-1
3.5 View ing Pro gram Pro gress/Status 3-2
3.6 Abort ing a Pro gram 3-3
3.7 “End of Pro gram” In di ca tion 3-3
3.8 View ing Pro gram and Con trol ler Pa rame ters 3-3
4 AD JUST ING THE SET POINT 4-1
5 US ING THE SELF- TUNE FA CIL ITY 5-1
6 US ING THE PRE- TUNE FA CIL ITY 6-1
7 MAN UAL CON TROL 7-1
8 DE FIN ING AND VIEW ING A PRO GRAM
(PRO GRAM DE FINE MODE) 8-1
(iii)
8.1 En try into Pro gram De fine Mode 8-1
8.2 Pa rame ters Com mon to All Pro grams (Global) 8-2
8.3 Pa rame ters which Ap ply to a Spe cific Pro gram
as a Whole 8-3
8.4 Pa rame ters in Any/Each Seg ment In
a Spe cific Pro gram 8-5
8.5 Us ing Join, Re peat and End Mark ers
and Cy cling Pro grams 8-6
8.6 Ba sic Rules to Re mem ber 8-8
8.7 Ex it ing Pro gram De fine Mode 8-8
9 DE FIN ING THE CON TROL LER PA RAME TERS
(CON TROL LER DE FINE MODE) 9-1
9.1 Con trol ler Pa rame ters 9-2
9.2 Base Mode Dis plays 9-10
9.3 Loop Alarm And Loop Alarm Time 9-10
9.4 Ex it ing Con trol ler De fine Mode 9-11
Il lus tra tions
Fig ure 2-1 Front Panel Con trols 2-1
Fig ure 2-2 Front Panel In di ca tors 2-2
Fig ure 2-3 Front Panel Dis plays 2-3
Fig ure 2-4 Alarm Status Dis play 2-4
Fig ure 8-1 Guar an teed Soak Op era tion 8-4
Fig ure 9-1 Pro por tional Band and Dead band/Over lap 9-7
Fig ure 9-2 Alarm Op era tion 9-8
Fig ure 9-3 Alarm Hys tere sis Op era tion 9-9
(iv )
1 INTRODUCING THE DCP 100T
The DCP 100T Digital Controller Programmer is a powerful, easy-to-use
1
4
-DIN
setpoint programmer with full PID control capability (complete with Self-Tune and
Pre-Tune facilities). Its standard features are:
• Up to eight programs of up to 16 free-format (e.g. dwell, ramp, join or
end) segments each.
• Facility to join programs to one another in any sequence (maximum
program length 121 segments).
• User can change currently-running program segment.
• Delayed Start of Program facility.
• End of Program relay output.
• Universal input - thermocouple, RTD (Pt100) or DC linear
- user- selectable).
• Universal power supply (90 - 264V ac 50/60Hz).
• Configurable from front panel.
• Comprehensive front panel displays.
• Front panel sealing to NEMA 4 standard.
• Behind-panel depth only 100mm.
Optional features include:
• Remote control and selection of program (plug-in option).
• Up to four Event relay outputs (plug-in option).
• Second control output.
• Recorder output (setpoint or process variable).
• RS485 serial communications.
• User-definable program tag names
• Real Time Clock
1-1
• Support software (Off-Line Configurator, On-Line Graphic Program Editor) -
operates via RS485 communications link.
The Digital Controller Programmer has four operating modes:
Base Mode: Day-to-day PID control operations with no program running. In
this mode, a program may be selected to run.
Program Run Mode: A selected program is running, held or waiting for a
pre-defined delay before starting. In this mode, the operator can view
status and program information.
Program Define Mode 1: Used to view/create/edit programs. This mode is
entered either from Base Mode (selected program may be edited/created)
or from Program Run Mode (currently-running program may be edited).
Controller Define Mode 2: Used to define the Controller characteristics.
1 -2
1 Entry via Lock Code; also optional Program Lock prevents changing of program definitions
while a program is running.
2 Entry via a Lock Code.
2 FRONT PANEL CONTROLS,
INDICATORS AND DISPLAYS
2.1 CONTROLS
2-1
Figure 2-1 Front Panel Con trols
MODE key
Changes mode of instrument.
SET UP key
Displays the next parameter in
sequence (indicated by Message
display - see Subsection 2.3).
Up key
Increments displayed parameter
value/cycles through options.
Down key
Decrements displayed parameter
value/cycles through options.
Program key
Cycles through Program
Numbers.
Run/Hold key:
Runs, holds or aborts current
program.
Selects/de-selects Self-Tune and
Pre-Tune (when Message Display
shows appropriate message).
Jumps to next segment, when a
program is running.
Selects/de-selects Manual Control
(see Section 7).
Sets a segment to Soak when
defining a program.
2.2 INDICATORS
2.2.1 Control Status Indicators
AT ON - Self-Tune active; flashing - Pre-Tune active
ALM Flashes when any alarm active
OUT1 ON when primary control outputis active
OUT2 ON when secondary control output (if fitted) is active.
MAN ON when Manual Control is selected.
2.2.2 Run Status Indicators
RUN ON - Program running or (if HLD ON also) program held
Flashing - Program in Delayed state.
HLD ON - Program Held
Flashing - Program in Guaranteed Soak
x60 OFF - Timebase = hours/minutes
ON - Timebase = minutes/seconds
2.2.3 Event Indicators
Each indicates the status (active or inactive) of a user-defined
event (OFF = inactive, ON = active).
2.2.4 Mode Indicators
SET ON when Controller Define Mode or Program Define Mode
is entered; flashes when viewing parameters in Controller
Define Mode or Program Define Mode after entry from
Base Mode
PRG ON when Program Define Mode is entered.
2-2
2.3 DISPLAYS
2-3
Figure 2-2 Front Panel Displays
2.4 ALARM STATUS INDICATION
When any alarm is active, the ALM indicator will flash. To view the alarm status in
the Message Display, press the SET UP key until a display appears of the form:
2.5 VIEWING PROGRAM AND CONTROLLER PARAMETERS
In Base Mode (i.e. with no program currently running or held), the MODE key gives
“view only” access to Program Define Mode and Controller Define Mode:
2-4
Figure 2-3 Alarm Status Dis play
Appears only if the Loop Alarm is active
Appears only if Alarm 2 is active
Appears only if Alarm 1 is active
VIEW ONLY VIEW ONLY
See Section 8 See Section 9
3 PROGRAMS
3.1 SELECTING AND RUNNING A PROGRAM
With no program running, the Digital Controller Programmer is in Base Mode and
the RUN and HLD indicators are OFF. In this mode, select a program as follows:
1. Hold down the PROG key un til the re quired pro gram number is
dis played.
2. Press the Run/Hold key once to start the pro gram. The RUN in di ca tor will
then go ON; the instrument is now in Pro gram Run Mode.
3.2 CHANGING THE PROGRAM TIMEBASE
Whilst a program is running, the normal timebase is hours/minutes. To change to a
timebase of minutes/seconds (i.e. select the x60 facility), press the Up key for more
than five seconds, whereupon the x60 indicator will go ON. To cancel operation
on the x60 timebase, press the Down key for more than five seconds, whereupon
the x60 indicator will go OFF.
3.3 HOLDING A PROGRAM MANUALLY
You may hold or freeze a program by momentarily pressing the Run/Hold key. The
HLD indicator will then go ON (the RUN indicator staying ON) and the program
will stop execution. The program may subsequently be restarted by momentarily
pressing the Run/Hold key again.
HLD INDICATOR FLASHING: If, before the operator holds the program
manually, the HLD indicator starts flashing, this indicates that the program
is currently subject to a Guaranteed Soak (see Subsection 8.3). If the
Run/Hold key is pressed (for a manual Hold), the HLD indicator will go ON
continuously. When the operator removes the manual Hold (by pressing the
Run/Hold key again), the HLD indicator will either flash (indicating that the
Guaranteed Soak conditions still prevail) or go OFF (indicating that the
Guaranteed Soak conditions no longer exist).
RUN INDICATOR FLASHING: This indicates that the program is in a Delay
state i.e. is timed to start after a user-defined delay has elapsed. When the
delay period has elapsed, the program will run and the RUN indicator will
come on continuously.
3-1
3.4 JUMPING TO THE NEXT SEGMENT
At any time during a program’s execution, the operator may jump forward to the
next segment by simultaneously pressing the PROG and Up keys. Note that, since
pro grams may be joined or set to cy cle, jump ing past the last seg ment in a
pro gram may re sult in changes in the Pro gram Num ber and Cy cle Count.
3.5 VIEWING PROGRAM PROGRESS/STATUS
In Program Run Mode, a number of displays are made available to the operator
(in the Message Display area) which indicate program progress/status. Whilst the
current program is running, held or delayed, press the SET UP key to cycle
through a sequence of program status displays with the following legends in the
Message Display:
In the case of Segment Time Remaining or Guaranteed Soak Time display, the
time is in hours/minutes (if the x60 indicator is OFF) or minutes/seconds (if the x60
indicator is ON). The Delay Time display is always in hours/minutes.
NOTE: If the SET UP key is held for two seconds or longer, the Digital
Controller Programmer will auto-scroll through the above display cycle (with
the exception of the Self-Tune and Pre-Tune displays). To stop the
Auto-scroll, press any key other than the SET UP key.
Af ter all ap pli ca ble pro gram status/prog ress dis plays have been shown, press the
SET UP key to re turn to the Base Mode dis plays.
3 -2
3.6 ABORTING A PROGRAM
The operator may abort (i.e. terminate) the current program by holding down the
Run/Hold key for more than five seconds. When the program is aborted, a return is
made to the Base Mode and the Message Display will show:
This message will be removed by the next keypress.
3.7 “END OF PROGRAM” INDICATION
When the program has reached its End Marker, the Message Display shows:
and a return is made to Base Mode.
3.8 VIEWING PROGRAM AND CONTROLLER PARAMETERS
In Program Run Mode (i.e. with a program currently running or held), the MODE
key gives “view only” access to Program Define Mode and Controller Define
Mode:
3-3
VIEW ONLY VIEW ONLY
See Section 8 See Section 9
4 ADJUSTING THE SETPOINT
With the Digital Controller Programmer in Base Mode (i.e. with the RUN, HLD, SET
and PRG indicators OFF), the two main displays will show the process variable
value (upper display) and the setpoint value (lower display - Read Only). To
change the setpoint value:
1. Press the SET UP key; the Mes sage Area will dis play one of:
whichever is appropriate to the input range used.
2. Use the Up and Down keys to change the set point value (in the lower
dis play) as re quired.
3. When the set point value is set as de sired, press the SET UP key again to
re turn to the ini tial dis play.
4 -1
5 USING THE SELF-TUNE FACILITY
The Self-Tune facility is used to optimise tuning whilst the Controller part of the
Digital Controller Programmer is operating. Self Tune may be activated as follows:
1. With the Digi tal Con trol ler Pro gram mer in Base Mode (with the RUN and
HLD in di ca tors OFF), press the SET UP key un til the Mes sage Dis play
shows:
and the lower Main Dis play shows:
2. Press the MODE and Up keys to change the lower Main Dis play to:
in di cat ing that the Self- Tune fa cil ity is now ac ti vated.
To de-activate the Self-Tune facility, press the SET UP key to obtain the same
Message Display as above; then press the MODE and Up keys simultaneously to
change the lower Main Display from On to OFF.
5-1
6 USING THE PRE-TUNE FACILITY
The Pre-Tune facility is used to set the Digital Controller Programmer’s PID control
parameters to values which are approximately correct in order to provide a base
from which the Self-Tune facility may subsequently optimise tuning. Pre-Tune may
be activated as follows:
1. With the Digi tal Con trol ler Pro gram mer in Base Mode (with the RUN and
HLD in di ca tors OFF), press the SET UP key un til the Mes sage Dis play
shows:
and the lower Main Dis play shows:
2. Press the MODE and Up keys to change the lower Main Dis play to:
in di cat ing that the Pre- Tune fa cil ity is now ac ti vated.
NOTES
1. If the process variable is within 5% of the input span from the setpoint,
the Pre-Tune facility cannot be activated and any attempt to do so will
have no effect.
2. Since the Pre-Tune facility is a single-shot operation, it will automatically
de-activate itself once the operation is complete.
To de-activate the Pre-Tune facility manually (with the Digital Controller
Programmer in Base Mode), press the SET UP key to obtain the same Message
Display as above; then press the MODE and Up keys to change the lower Main
Display from On to OFF.
6-1
7 MANUAL CONTROL
In any mode except Configuration Mode or Calibration Mode, the operator may
select manual control of the process by simultaneously pressing the SET UP and
MODE keys. The Digital Controller Programmer will then enter Base Mode or (if a
program is currently running) Program Run Mode with the program held. The
Message Display will show:
and the lower Main Display will show the power output value, which may then be
adjusted using the Up and Down keys. Whilst manual control is being exercised,
the power output display is included in the displays available in Base Mode and
Program Run Mode.
To cancel manual control, press the SET UP and MODE keys simultaneously,
whereupon the power out value display and the Power Message Display will
disappear and the Digital Controller Programmer will remain in whatever mode
prevailed when manual control was cancelled (if this is Program Run Mode, the
currently-running program will be resumed from the point at which it was held).
7-1
8 DEFINING AND VIEWING A PROGRAM
(PROGRAM DEFINE MODE)
The Digital Controller Programmer may be put into Program Define Mode from
either Base Mode or Program Run Mode (i.e. with a program currently running).
8.1 ENTRY INTO PROGRAM DEFINE MODE
1. Press the SET UP and Up keys si mul ta ne ously. The lower Main Dis play will
show 0 and the Mes sage Dis play will show:
2. Use the Up and Down keys to set the value in the lower Main Dis play to
the Lock Value (de fined by the user in Con trol ler De fine Mode) and press
the SET UP key.
The Digital Controller Programmer will enter Program Define Mode, the SET and
PRG indicators will go ON and the operator will be able to edit programs and
segments. The MODE key can then be used (a) to switch to Controller Define
Mode (see Section 9), and then (b) to show a Message Display:
To return to Program Define Mode (and re-start the Program Define/Controller
Define/Exit? display cycle), press the MODE key; to return to Base Mode, press the
SET UP key.
If an incorrect lock value is entered, a return is made to Base Mode.
Program parameters are divided into three categories:
(a) Those com mon to all pro grams - global pa rame ters
(b) Those com mon to all se gments in a spe cific pro gram
(c) Those rele vant to a spe cific seg ment in a spe cific pro gram
Upon entry into Program Define Mode, the operator will be presented with the first
of a sequence of parameter displays (see following Subsections). The operator
may then step through the sequence, using the SET UP key. The displayed
Program Number may be changed using the PROG key and the displayed
Segment Number may be changed using the Run/Hold key.
NOTE: If en try is made from Pro gram Run Mode and Pro gram Lock is On,
only Con trol ler De fine Mode will be ac ces si ble.
8-1
8.2 PARAMETERS COMMON TO ALL PROGRAMS (GLOBAL)
Parameter
Message
Display
Function Available Settings (Lower Main Display)
Start On Defines setpoint value at the
start of each program.
Current setpoint value
Current process
variable value
End On Defines setpoint value at the
end of each program.
Final SP value
1
Controller SP value
Delay Time Defines delay (in
hours/minutes) between
initiating the program and
the program actually
starting.
Numerical value, with the decimal
point acting as the de-limiter
between the two units
(hours.minutes)
Program
Lock
Defines whether the operator
is permitted to change
program definitions whilst a
program is running/held.
Not permitted
Permitted
Power Fail
Recovery
Defines response to
restoration of power after
power failure.
0.00 or 1.00 if no Real Time Clock.
0.00 or Time (0.01 - 24.00) if Real
Time Clock fitted.
0.00 = Cold Start
2
1.00 or Time = Warm Start
3
RTC Time
4
Defines Real Time Clock
initial setting (hours.minutes).
0.10 - 24.00
RTC Day
4
Defines Real Time Clock
initial setting (day of week)
Sun , Mon , tuE , Wed , thu , Fri or SAt
External
Selection
Defines functions which may
be controlled externally
No external selection
Program selection
only
Only Run, Hold, Abort
and x60 functions
All program selection
and run control
functions
Lock
Code
5
Lock Code for Program
Define Mode
0 - 9999. Default = 10.
8-2
Program Number = A Segment Number = Blank
1 The final setpoint value for the End Marker of each program - see Subsection 8.4
2 Cold Start = Base Mode with Program No. as when power failed and Segment No. blank
3 Warm Start = resumption from point when power failed (with RTC, if Time has not
expired, otherwise Cold Start.
4 Available only if Real Time Clock fitted.
5 Only applicable if instrument is configured to have two lock codes.
8.3 PARAMETERS WHICH APPLY TO A SPECIFIC PROGRAM
AS A WHOLE
Parameter
Message
Display
Function Available Settings (Lower Main Display)
Cycle Count Defines the number of
times a program will be
repeated.
0 - 9999 Program will repeat
the set number of
times
Program will repeat
indefinitely
Guaranteed
Soak
Selects operation of
Guaranteed Soak facility
(relative to setpoint) - see
Figure 8-1.
No Guaranteed Soak
Above setpoint only
Below setpoint only
Above and below
setpoint
Guaranteed
Soak Band
Defines the width of the
Guaranteed Soak Band
-see Figure 8-1.
Numerical value (0 to-span)
Guaranteed
Soak On
Defines whether the
Guaranteed Soak facility
is used on ramps only, on
soaks only or on both
ramps and soaks.
On ramps and soaks
On soaks only
On ramps only
Pre-x60 Defines whether the
timebase for the program
is pre-selected to be
hours/minutes or
minutes/seconds (NOTE:
This parameter setting is
over-ruled by the
external “x60” input).
No pre-selection
Minutes/seconds
Hours/minutes
Timer (RTC
only)
Selects/de-selects timer
control of program.
Timer control selected
Timer control not
selected
Start Hour
(Timer On)
Defines start time for
program.
24.00 (0.00) to 23.59
Start Day
(Timer On)
Defines day(s) for
program to run.
Sun, Mon, tue, Wed, thu, Fri, Sat,
5 dY (Mon - Fri), 6 dY (Mon - Sat) or
ALL (all 7 days of the week)
This se quence may be viewed/ed ited for any pro gram by chang ing the Pro gram
Num ber with the PROG key, then step ping through the pa rame ters with the SET
UP key.
8 -3
Program Number = 1 to 8 Segment Number = Blank
8-4
Figure 8-1 Guaranteed Soak Operation
8.4 PARAMETERS IN ANY/EACH SEGMENT IN A SPECIFIC
PROGRAM
Parameter
Message
Display
Function Available Settings (Lower Main Display)
Final Setpoint
Value
Defines the final setpoint
value for this segment,
selects a Soak segment
or indicates a Join,
Repeat or End Marker.
Numeric value (limited by SPHi and
SPLo) or (by pressing the Up and
Down keys simultaneously) indicates
a Soak segment with:
or, if the segment is already a Join,
Repeat or End Marker, as shown
below.
Segment Time
or Ramp
Rate, as
selected in
Configuration
Mode (see
Installation
Manual)
or
as
appropriate
Defines the duration or
ramp rate of the
segment or whether it is
a Join Marker, Repeat
Marker or End Marker.
1
Four-digit number in the form mm.nn
(hours.minutes or minutes.seconds)
or negative values as follows:
J01 Join to Program 1
J02 Join to Program 2
J03 Join to Program 3
J04 Join to Program 4
J05 Join to Program 5
J06 Join to Program 6
J07 Join to Program 7
J08 Join to Program 8
REP Repeat Marker
End End Marker
Event
2
Defines the states of the
four Event Outputs for
this segment.
Four-bit binary number (0 = inactive,
1 = active):
8-5
Program Number = 1 to 8 Segment Number = 1 to 16
Event 1
Event 2
Event 3
Event 4
1 If a segment is set to be a Join Marker, a Repeat Marker or an End Marker, the next
depression of the SET UP key will set the segment number to A and the first parameter
common to the whole program (Cycle Count - see Subsection 8.3) will be displayed.
Otherwise, the next depression of the SET UP key will display the next segment
parameter - Event (for the current segment) if the Event Output hardware is fitted.
2 This parameter appears only if the Event Output hardware is fitted, in which case this
parameter will be followed by the Final Setpoint parameter for the next segment. If the
Event Output hardware is not fitted, this parameter is omitted from the sequence and
the segment number is advanced, causing the Final Setpoint Value parameter for the
next segment to appear immediately.
CANCELLING JOIN, REPEAT OR END MARKERS
To cancel a Join, Repeat or End Marker:
(a) at the Fi nal Set point Value pa rame ter, press the Up and Down
keys si mul ta ne ously to pro duce a Soak seg ment, or
(b) at the Seg ment Time/Ramp Rate pa rame ter, in cre ment the value
to 0 or a posi tive value.
8.5 USING JOIN, REPEAT AND END MARKERS AND
CYCLING PROGRAMS
By default, the Digital Controller Programmer has eight programs, each 16
segments long (all 16 segments are active and, at the end of Segment 16 is an
implicit End Marker). These programs can be made shorter (using End Markers) or
longer (by creating program sequences with Join, Repeat and End Markers). The
only limit to the size of a program sequence is a maximum length of 121 active
segments plus seven Join Markers plus one End Marker (i.e. all eight programs
joined to make one program sequence).
Segments follow a free format in that ramp or dwell can be followed by dwell or
ramp, completely as desired.
Consider two example programs:
To join the two programs to form a program sequence, change the End Marker of
Program 1 to a Join Marker (Segment Time/Ramp Rate set to J02 - Join Program
2):
8-6
PROGRAM 1
(5 active segments, 1 End Marker)
PROGRAM 2
(3 active segments, 1 End Marker)
PROGRAM 1
(5 active segments, 1 Join Marker)
PROGRAM 2
(3 active segments, 1 End Marker)
There are no restrictions on joining programs; several programs can be joined to
one program (e.g. to provide user-selectable warm-up programs, depending
upon which program is run first).
The Cycle feature can be used to make more complex program sequences.
Consider the two simple example programs previously described:
and consider the case in which Program 1 is set to perform two cycles and is
joined to Program 2. When Program 1 is run, the result would be:
If Program 2 were now set to perform ten cycles, the result would be:
Now, with Pro gram 2 set to per forn ten cy cles, if the End Marker of Pro gram 2 were
changed to a Re peat Marker (Seg ment Time/Ramp Rate set to REP), the re sult
would be:
8-7
PROGRAM 1
(5 active segments, 1 End Marker)
PROGRAM 2
(3 active segments, 1 End Marker)
PROGRAM 1 PROGRAM 2PROGRAM 1
PROGRAM 1 PROGRAM 2PROGRAM 1
10 cycles
At the end of the tenth cycle of Program 2, the program sequence would end.
8.6 BASIC RULES TO REMEMBER
In any program sequence:
• A pro gram end ing in a Join Marker will per form the re quired number of
cy cles of it self be fore join ing the new pro gram.
• A pro gram end ing in a Re peat Marker (hence, by defi ni tion, the last
pro gram in the se quence) will per form the re quired number of cy cles of
it self be fore end ing the se quence.
• A pro gram end ing in an End Marker (hence, by defi ni tion, the last
pro gram in the se quence) will per form its cy cle count on the en tire
pro gram se quence be fore end ing that se quence.
8.7 EXITING PROGRAM DEFINE MODE
The operator may exit from Program Define Mode by pressing the MODE key until
the Exit ? prompt appears in the Message Display, then pressing the SET UP key,
which will cause a return to the mode from which entry was made.
NOTE: An auto matic re turn is made if there is no key ac tiv ity in
Pro gram De fine Mode for five min utes.
8-8
PROGRAM 1 PROGRAM 2PROGRAM 1
10 cycles
9 DEFINING THE CONTROLLER
PARAMETERS
(CONTROLLER DEFINE MODE)
Entry can be made into this mode from Program Define Mode, Program Run
Mode or Base Mode.
To enter from Base Mode or Program Run Mode:
1. Press the SET UP and Up keys si mul ta ne ously. The lower Main Dis play will
show 0 and the Mes sage Dis play will show:
2. Use the Up and Down keys to set the value in the lower Main Dis play to
the cor rect Lock Code Value (for Program De fine Mode) and press the SET
UP key. The Digi tal Con trol ler Pro gram mer is now in Pro gram De fine Mode.
NOTE: If an in cor rect Lock Code Value is en tered, the Digi tal Con trol ler
Pro gram mer will re turn to its origi nal mode (i.e. Base Mode or Pro gram Run
Mode).
3. Press the MODE key. If the instrument has been configured to have only
one Lock Code, entry into Controller Define Mode is immediate and no
further action is needed. If the instrument is configured to have two Lock
Codes (one for Program Define Mode, one for Controller Define Mode), the
Lower Main Display will show 0 and the Message Display will show:
4. Use the Up and Down keys to set the value in the Lower Main Display to
the Lock Code value (for Controller Define Mode), then press the SET UP
key.
The Digital Controller Programmer is now in Controller Define Mode.
NOTE: If an in cor rect Lock Code Value is en tered, the Digi tal
Con trol ler Pro gram mer will re turn to its origi nal mode (i.e. Base
Mode, Pro gram Run Mode or Program Define Mode).
To enter from Program Define Mode, perform Step 3 and (if necessary) Step 4
above.
9-1
Upon en try into Con trol ler De fine Mode, the SET in di ca tor will come ON and the
first of the Con trol ler pa rame ters (In put Fil ter Time Con stant) will be pre sented for
ed it ing/view ing. Us ing the SET UP key, step through the se quence of Con trol ler
pa rame ters, ed it ing as re quired (us ing the Up/Down keys).
9.1 CONTROLLER PARAMETERS
The Controller parameters appear in the following sequence:
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
Input Filter Time
Constant
Defines the time constant
for the input filter
(removes extraneous
pulses from the process
variable input).
0.0 seconds (filter OFF) to 100.0
seconds on 0.5-second
increments. Default = 2.0 seconds
Process
Variable
Offset
1
Modifies actual PV value:
PV Offset + PV = PV value
For linear input, limited by Scale
Range Maximum and Scale Range
Minimum. Default = 0.
Output 1 Power Current Output 1 power
level
Read only - not adjustable
Output 2
Power
2
Current Output 2 power
level
Read only - not adjustable
Proportional
Band 1 (PB1)
Portion of input span in
which Output 1 power
level is proportional to
the (offset) process
variable value (see
Figure 9-1)
0.0% (ON/OFF Control) to 999.9%
of input span. Default = 10.0%.
Proportional
Band 2 (PB2)
Portion of input span in
which Output 2 power
level is proportional to
the (offset) process
variable value (see
Figure 9-1)
0.0% (ON/OFF Control) to 999.9%
of input span. Default = 10.0%.
Reset
3
Integral Time Constant 1 second to 99 minutes 59
seconds.
Rate
3
Derivative Time Constant 00 seconds to 99 minutes 59
seconds
Overlap or
Deadband
4
The portion of
Proportional Band (PB1 +
PB2) over which both
outputs are active
(Overlap) or over which
neither output is active
(Deadband) - see Figure
9-1
−20% to + 20% (negative value =
deadband, positive value =
overlap). Default = 0%.
Bias (Manual
Reset)
3
Bias applied to output
power, expressed as a
percentage of output
power
0% to 100% (Output 1 only)
−100% to +100% (Outputs 1 & 2)
Default = 25%
9-2
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
ON/OFF
Differential
5
Switching differential for
one output (Diff 1 or
Diff 2) or both outputs
(Diff) set to ON/OFF
control (PB1, PB2 or both
set to 0%)
0.1% to 10% of input span.
Default = 0.5%.
Setpoint High
Limit
6
Maximum limit for
setpoint adjustment.
Should be set to a value
which prevents setpoint
values causing damage
to the process.
Current setpoint value to Input
Range Maximum.
Default = Input Range Maximum
Setpoint Low
Limit
6
Minimum limit for setpoint
adjustment. Should be
set to a value which
prevents setpoint values
causing damage to the
process.
Input Range Minimum to current
setpoint value.
Default = Input Range Minimum
Motor Travel
Time
11
Time taken for valve to
travel from one end stop
to the other.
5 seconds to 5 minutes.
Default = 1 minute
Minimum
Motor ON
Time
11
Minimum drive effort
required to initiate
movement in a stationary
valve.
0.0 seconds to Motor Travel Time
plus 10 seconds.
Default = 1 minute.
Recorder
Output Scale
Maximum
7
The value of the process
variable or setpoint (as
applicable) for which the
recorder output is at a
maximum.
−1999 to 9999 (decimal point as
for the process variable input
range).
Default = Input Range Maximum
Recorder
Output Scale
Minimum
7
The value of the process
variable or setpoint (as
applicable) for which the
recorder output is at a
minimum.
−1999 to 9999 (decimal point as
for the process variable input
range).
Default = Input Range Minimum
Output Power
Limit
3
Limits the power level of
Output 1 (used to protect
the process).
0% to 100%
Output 1 Cycle
Time
8
Limits the frequency of
operation of output relay
to maximise relay life.
0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256
or 512 seconds.
Default = 32 seconds
Output 2 Cycle
Time
8
Limits the frequency of
operation of output relay
to maximise relay life.
0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256
or 512 seconds.
Default = 32 seconds
Process High
Alarm 1 Value
If Alarm 1 is a Process
High Alarm, the value of
the process variable at or
above which Alarm 1 will
become active (see
Figure 9-2).
Input Range Maximum to Input
Range Minimum.
Default = Input Range Maximum.
9-3
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
Process Low
Alarm 1 Value
If Alarm 1 is a Process Low
Alarm, the value of the
process variable at or
below which Alarm 1 will
become active (see
Figure 9-2).
Input Range Maximum to Input
Range Minimum.
Default = Input Range Minimum.
Band Alarm 1
Value
If Alarm 1 is a Band
Alarm, the band of
process variable values
(centred on the setpoint)
outside which the
process variable will
cause this alarm to be
active.
±(input span) from setpoint.
Default = 5 input units.
Deviation
(High/Low)
Alarm 1 Value
If Alarm 1 is a Deviation
High/Low alarm, gives a
value above (positive
value) or below (negative
value) the setpoint. If the
process variable deviates
from the setpoint by a
margin greater than this
value, the alarm
becomes active (see
Figure 9-2).
±(input range) from setpoint.
Default = 5 input range units.
Alarm 1
Hysteresis
Value
Defines a hysteresis band
on the “safe” side of the
Alarm 1 value (see Figure
9-3).
1 LSD to 10% of input span (0 is an
invalid value).
Process High
Alarm 2 Value
If Alarm 2 is a Process
High Alarm, the value of
the process variable at or
above which Alarm 2 will
become active (see
Figure 9-2).
Input Range Maximum to Input
Range Minimum.
Default = Input Range Maximum.
Process Low
Alarm 2 Value
If Alarm 2 is a Process Low
Alarm, the value of the
process variable at or
below which Alarm 2 will
become active (see
Figure 9-2).
Input Range Maximum to Input
Range Minimum.
Default = Input Range Minimum.
Band Alarm 2
Value
If Alarm 2 is a Band
Alarm, the band of
process variable values
(centred on the setpoint)
outside which the
process variable will
cause this alarm to be
active.
±(input span) from setpoint.
Default = 5 input units.
9-4
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
Deviation
(High/Low)
Alarm 2 Value
If Alarm 2 is a Deviation
High/Low alarm, gives a
value above (positive
value) or below (negative
value) the setpoint. If the
process variable deviates
from the setpoint by a
margin greater than this
value, the alarm
becomes active (see
Figure 9-2).
±(input range) from setpoint.
Default = 5 input range units.
Alarm 2
Hysteresis
Value
Defines a hysteresis band
on the “safe” side of the
Alarm 2 value (see Figure
9-3).
1 LSD to 10% of input span (0 is an
invalid value).
Loop Alarm
Enable
Enables/disables Loop
Alarm (see Subsection
9.3)
0 = Disabled, 1 = Enabled.
Default = 0 (Disabled)
Loop Alarm
Time
If ON/OFF control is
selected (i.e. PB1 = 0)
and Loop Alarm is
enabled, this defines the
duration of the saturation
condition after which the
Loop Alarm is activated
(see Subsection 9.3).
1 second to 99 minutes 59
seconds.
Default = 99 minutes 59 seconds.
Scale Range
Decimal
Point
9
For linear inputs, defines
the decimal point
position.
0 = XXXX
1 = XXX.X (Default)
2 = XX.XX
3 = X.XXX
Scale Range
Maximum
9
For linear inputs, defines
the scaled input value
when the process
variable input is at its
maximum value.
−1999 to 9999 (decimal point
position as defined by Scale
Range Decimal Point parameter
(see above).
Default = 100.0
Scale Range
Minimum
9
For linear inputs, defines
the scaled input value
when the process
variable input is at its
minimum value.
−1999 to 9999 (decimal point
position as defined by Scale
Range Decimal Point parameter
(see above).
Default = 0.0
Auto Pre-Tune
Enable/Disable
Determines whether the
Pre-Tune facility is
automatically activated
on power-up.
OFF = Disabled, ON = Enabled.
Default = OFF.
Manual
Control
Enable/Disable
Enables/disables
operator selection of
Manual Control mode.
OFF = Disabled, ON = Enabled.
Default = OFF.
Communications
Write
Enable/Disable
10
Enables/disables
adjustment of parameter
settings/value via the
RS485 communications
link.
OFF = Disabled, ON = Enabled.
Default = OFF.
9-5
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
Lock Value
or
Defines the four-digit
code required to enter
Controller Define Mode
(and, if a common lock
code is to be used,
Program Define Mode).
0 to 9999.
Default = 10.
NOTES ON CONTROLLER DEFINE MODE PARAMETERS
1. The Process Variable Offset value should be chosen with great care. Any adjustment to
this parameter is, in effect, a calibration adjustment. Injudicious application of values to
this parameter could lead to the displayed process variable value having no meaningful
relationship to the actual process variable value. There is no front panel indication when
this parameter is in effect (i.e. has been set to a non-zero value).
2. These parameters are applicable only if the secondary control (COOL) output is fitted.
3. These parameters are not applicable if Proportional Band 1 has been set to 0 (i.e.
ON/OFF control).
4. This parameter is not applicable if Proportional Band 1 is set to 0 or if Output 2 (COOL) is
not fitted.
5. The Message Display will show Diff 1 for ON/OFF control on Output 1 only, Diff 2 for
ON/OFF control on Output 2 only and Diff for ON/OFF control on both Output 1 and Output
2.
6. Internal software prevents (a) the Setpoint High Limit being given a value less than any
setpoint value contained in the currently-resident programs, and (b) the Setpoint Low Limit
being given a value greater than any setpoint value contained in the currently-resident
programs.
7. These parameters are not applicable if the Recorder Output Option is not fitted.
8. Output 1 Cycle Time is not applicable if Proportional Band 1 is set to 0 or if Output 1 is a
DC Linear output. Output 2 Cycle Time is not applicable if Proportional Band 1 is set to 0, if
Proportional Band 2 is set to 0, If Output 2 is not fitted or if Output 2 is a DC Linear output.
9. These parameters are applicable only if a linear input is fitted
10. Applicable only if the RS485 Serial Communications Option is fitted.
11. Applicable to TPSC control only.
12. If the instrument is configured to have one lock code only (Message Display will show
Lock ), this value is used to enter Program Define Mode and Controller Define Mode. If two
lock codes are to be used (Message Display will show Lock C), this value applies to
Controller Define Mode only.
9-6
9-7
Figure 9-1 Pro por tional Band and Dead band/Over lap
9-8
Figure 9-2 Alarm Operation
9-9
Figure 9-3 Alarm Hysteresis
Alarm
Op era tion
Process
Alarm Value
Hysteresis Band
Alarm Inactive Alarm Active
Alarm Inactive
Process
Variable
Process
Alarm Value
Hysteresis Band
Process
Alarm Inactive Alarm Active
Alarm Inactive
Hysteresis Band
Hysteresis Band
Process
Alarm Value
Alarm
SetpointAlarm
Inactive
Alarm Inactive
Alarm Active
Alarm Active
Alarm Inactive
Band
Alarm
Deviation
Setpoint
Hysteresis Band Alarm Inactive Alarm Active
Alarm Inactive
Process
Alarm
Setpoint
Hysteresis
Alarm Value Alarm Inactive Alarm Active
Alarm Inactive
Process
Variable
9.2 BASE MODE DISPLAYS
Once the complete cycle of Controller Define Mode parameters has been
displayed, the user may then step through the Base Mode displays (controller
setpoint - alarm status - Self Tune - Pre-Tune), making adjustments where required,
before re-starting the Controller Define Mode parameter cycle.
9.3 LOOP ALARM AND LOOP ALARM TIME
The Loop Alarm is a special alarm which detects faults in the control feedback
loop by continuously monitoring process variable response to the control
output(s).
The Loop Alarm facility, when enabled, repeatedly checks the control output(s) for
saturation i.e. either or both outputs being at the maximum or minimum limit. If an
output is found to be in saturation, the Loop Alarm facility starts a timer; thereafter,
if the saturated output has not caused the process variable to be corrected by a
pre-determined amount V after a time T has elapsed, the Loop Alarm goes active.
Subsequently, the Loop Alarm facility repeatedly checks the process variable and
the control output(s). When the process variable starts to change value in the
correct sense or when the saturated output comes out of saturation, the Loop
Alarm is de-activated.
For PID control, the Loop Alarm Time T is always set to twice the value of the Reset
(Integral Time Constant) parameter. For On/Off control, the user-defined value of
the Loop Alarm Time parameter is used.
The value of V is dependent upon the input type:
o
C ranges: 2oC or 2.0oC
o
F ranges: 3oF or 3.0oF
Lin ear ranges: 10 least sig nifi cant dis play units
For single output Controllers, the saturation limits are 0% and Output Power Limit.
For dual output Controllers, the saturation limits are –100% and Output Power Limit.
NOTES
1. Correct operation of the Loop Alarm depends upon reasonably
accurate PID tuning.
2. The Loop Alarm is automatically disabled during Manual Control Mode
and during execution of the Pre-Tune facility. Upon exit from Manual
Control Mode or after completion of the Pre-Tune routine, the Loop Alarm is
automatically re-enabled.
9-10
When full ON/OFF con trol is se lected (i.e. Pro por tional Band 1 is set to 0) and Loop
Alarm is en abled, the Loop Alarm Time pa rame ter de ter mines the du ra tion of the
satu ra tion con di tion af ter which the Loop Alarm will be ac ti vated. It may be
ad justed within the range 1 sec ond to 99minutes 59 sec onds. This pa rame ter is
omit ted from the dis play se quence if ON/OFF con trol is not se lected or Loop Alarm
is dis abled. The de fault set ting is 99:59.
9.4 EXITING CONTROLLER DEFINE MODE
The operator may exit from Controller Define Mode by pressing the MODE key
until the Exit ? prompt appears in the Message Display, then pressing the SET UP
key, which will cause a return to the mode from which entry was made.
NOTE: An auto matic re turn is made if there is no key ac tiv ity in
Con trol ler De fine Mode for five min utes.
9-11
Alphabetical Index
A
Aborted Program
Indication of 3-3
Alarm 1 Hysteresis Value 9-4
Alarm 1 Value
Band Alarm 9-4
Deviation (High/Low) Alarm
9-4
Process High Alarm 9-3
Process Low Alarm 9-4
Alarm 2 Hysteresis Value 9-5
Alarm 2 Value
Band Alarm 9-4
Deviation (High/Low) Alarm
9-5
Process High Alarm 9-4
Process Low Alarm 9-4
Alarm Status
Display of 2-4, 3-2
Auto Pre-Tune Enable/Disable 9-5
Auto-Scroll Feature 3-2
B
Bias 9-2
C
Communications Write Enable/Disable
9-5
Controller Define Mode
Automatic exit from 9-11
Entry from Base Mode or Program
Run Mode 9-1
Entry from Program Define Mode
9-1
Exit from 9-11
Indication of entry 9-2
Controller Define Mode Parameters
"Read Only" access from Base
Mode 2-4
"Read Only" access from Program
Run Mode 3-3
D
Deadband 9-2
Delay State
Indication of 3-1
Delay Time 8-2
Delay Time Remaining
Display of 3-2
Derivative Time Constant 9-2
Down key
Function 2-1
E
End Marker
Cancellation of 8-6
End of Program Sequence
Indication of 3-3
End On parameter 8-2
External Selection 8-2
F
Front Panel Displays
Functions 2-3
Front Panel Keys
Functions 2-1
G
Guaranteed Soak
Indication of 3-1
Guaranteed Soak Time
Display of 3-2
1
I
Input Filter Time Constant 9-2
Integral Time Constant 9-2
J
Join Marker
Cancellation of 8-6
L
Lock Code (Controller Define Mode)
Setting 9-6
Using 9-1
Lock Code (Program Define Mode)
Setting 8-2
Using 8-1, 9-1
Loop Alarm
Description 9-10
Loop Alarm Enable 9-5
Loop Alarm Time 9-5
Definition 9-10
M
Manual Control
Front panel display 7-1
Selection/de-selection 2-1,
7-1
Manual Control Enable/Disable 9-5
Manual Program Hold
Indication of 3-1
Manual Reset 9-2
Minimum Motor ON Time 9-3
MODE key
Function 2-1
Motor Travel Time 9-3
N
Next Segment
Jump to 2-1 - 3-2
Number of Cycles Completed
Display of 3-2
O
ON/OFF Differential 9-3
Output 1 Cycle Time 9-3
Output 1 Power 9-2
Output 2 Cycle Time 9-3
Output 2 Power 9-2
Output Power Limit 9-3
Overlap 9-2
P
Power Fail Recovery 8-2
Pre-Tune Facility
Limitations on use 6-1
Selection/de-selection 2-1,
6-1
Status display 3-2
Process Variable Offset 9-2
PROG key
Function 2-1
Program Define mode
Indication of 8-1
Program Define Mode
Automatic exit from 8-8
Entry into 8-1
Exit from 8-8
Global parameters 8-2
Parameters specific to
a segment 8-5
Program Define Mode Parameters
"Read Only" access from Base
Mode 2-4
"Read Only" access from Program
Run Mode 3-3
Program Lock 8-2
Program Running 3-1
2
Program Selection 3-1
Program Tag
Display of 3-2
Program Timebase
Changing 3-1
Proportional Band 1 9-2
Proportional Band 2 9-2
R
Rate 9-2
Recorder Output Scale Maximum
9-3
Recorder Output
Scale Minimum 9-3
Repeat Marker
Cancellation of 8-6
Reset 9-2
RTC Day 8-2
RTC Time 8-2
Run/Hold key
Function 2-1
S
Scale Range Decimal Point 9-5
Scale Range Maximum 9-5
Scale Range Minimum 9-5
Segment Time Remaining
Display of 3-2
Self-Tune Facility
Selection/de-selection 2-1,
5-1
Status Display 3-2
SET UP key
Function 2-1
Setpoint
Adjustment of 4-1
Setpoint High Limit 9-3
Setpoint Low Limit 9-3
Soak Segment
Setting of 2-1
Start On parameter 8-2
U
Up key
Function 2-1
3
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