FC SERIES COMPACT CONTROLLER S
(PROGRAMMABLE, STEP OUTPUT TYPE)
DATA SHEET
PNC2
The Compact Controller S (programmable type) is a compact single-loop controller using a microprocessor. It accepts
uniform signal, and signals from thermocouple and RTD
(Resistance bulb) as input, and is equipped with abundant
control and computation functions to allow composing a flexible system with a high cost/performance.
FEATURES
1. Abundant control and computation functions
The controller has a variety of control and computation
functions in addition to PID auto tuning, and also has a
transmission function for data exchange with a host system.
2. Control and computation programming can be made
at the site
Since the control and computation functions are built into
wafers (functional units), an optimum program for the control object can be formed just by keying on the front panel.
3. High reliability
LED's (red and green) are used for the bargraph indicator
and also for the parameter indication (red), and a nonvolatile memory enables retaining the control and computation parameters even if power should be interrupted.
4. All operation is made from the front panel
Operations such as parameter setting, auto/manual
changeover are all made from the front panel.
5. Personal computer interface
Generic interface availability for personal computer (IBM
PC-AT) for supervision, operation, support, maintenance,
etc.
FUNCTIONAL DIAGRAM
Personal computer
External set point input
(CAS)
Auxiliary digital input 1
(DI1)
Auxiliary digital input 2
(DI2)
Auxiliary digital input 3
(DI3)
Pulse width input (PI+)
4 to 20mA,
thermocouple
RTD
conversion
KPV
SV
MAIn control
block (basic control)
Control wafer
Compensated PV signal (KPV)
Set point transmit signal (SV)
Manipulated output (Pulse width)
(PO)
MV
Auxiliary digital output 1
(DO1)
Auxiliary digital output 2
(DO2)
High alarm (H)
Low alarm (L)
Computation wafer
Manual mode output
(M)
Fault output
(FLT)
FLT Indictor
Manual
Pulse width input (PI-)
Manual mode command (SMV)
Auxiliary analog output 1
(AO1)
Resistance
input converter
D/A converter
Process variable input
(PV)
SUB control block
(cascade control, ratio
control or schedule
control)
SV
Control wafer
PV
A/D converter
Valve opening input
(Resistance) (W)
Auxiliary analog input 1
(AI1)
Auxiliary analog input 2
(AI2)
Other controllers
Bargraph
indicator
External output
terminals
External input
terminals
Serial communication interface
Communication Constant Constant
1
32
terminals
Fault
Alarm
up to 24 wafers
usable
H Indictor
L Indictor
EDS11-102e
Date
Jan. 27, 1999
PNC2
2. Computation functions
SPECIFICATIONS
1. Control functions
(1) PID control:
Proportional band (P); 1.0 to 3276.7%
Integration time (I); 0.1 to 3276.7 sec
Derivative time (D); 0.0 to 900.0 sec
PID auto tuning function (according to
code specification)
Wafer system program:
The following kinds of control are possible by
combining wafers (functional units)
(Examples of control)
Cascade control, ratio control, program control, gain
schedule control, etc.
Type of alarms:
PV high/low alarm
PV change rate alarm
DV high/low alarm
Control cycle:
Determined by
wafer connection
Alarms are indicated with
front panel lights
0.2 sec (24 wafer type)
0.4 sec (48 wafer type)
(1) Wafer
The wafer is a functional unit software package containing control and computation functions needed for measurement and control. Combination of these wafers each
having its own particular function enables composing a
flexible system applicable to a wide range of control…
from basic PID control up to complex advanced control.
The PNC2 can accommodate up to 24/48 wafers.
The following kinds of wafers are prepared to allow selection according to the control purpose.
① For control .......... PID control, ratio control, program
control, gain scheduler, PID parameter setting
➁ For computation .. Various computations possible by
combining the wafers given in
Table 1
(2) Internal input/output terminals
Various internal terminals are provided for external analog
input/output, digital input/output and wafer connection.
(3) Constants
Various parameters used in computation and control can
be freely defined.
32 constants at 24 wafers
48 constants at 48 wafers
(
)
Table 1 List of computation wafers
Wafer name
Kinds
Functional outline
Logical operation
6
Carries out AND, OR, NOT, EOR and a combination of these logical operations.
Arithmetic operation
5
Carries out a combination of addition, subtraction, multiplication and division.
Temperature/pressure
compensation
1
Carries out temperature and pressure compensation through use of differential pressure, compensated
pressure, proper temperature.
Linearize
3
Carries out segmented-line approximation with 15-segmented-line function.
Program control
4
Time schedule control by step or polygonal line approximation with 7 segments.
Flip-flop
1
RS flip-flop.
Pulse width integration
1
Adds the change of input at each basic cycle to the previous integrated value.
Selector
1
Compares two input values, and provides HIGH output (Large one), LOW output (Smaller one), and result of
judgement on large/small.
Changeover
1
Selects input or output via a switch function. Analog hold circuit also provided.
Timer
1
Outputs on-delay, off-delay timer signal via start of input signal according to timer setting.
Absolute value/sign inversion
1
Carries out absolute value processing on input and outputs the result. Also judges the sigh (Positive, negative)
of input value and outputs the result.
Square root extraction
1
Extracts square root of input value and outputs the result. Low input cutoff function equipped.
Lead, lag
1
Carries out lead/lag operation on the input and outputs the results. Used as analog filter function and for various
compensations.
Limiter
1
Limits the input within the range of high/low limit settings, and outputs the result. Also outputs high/low limit
alarm signal.
Ramp function
2
Outputs signal which changes in ramp from toward target value at the set full scale time.
There are two of these wafers…in minute unit and hour unit.
Analog averaging
1
Carries out sequential integration on input data, calculates the average value at each averaging time, and
outputs the result.
Analog integration
1
Integrates the value obtained by multiplying the input data by a proportional constant, and outputs the result.
Pulse generation
1
Outputs a pulse at the set time interval.
Dead band
1
Adds dead band compensation to the input and outputs the result.
Pulse No. counter
1
Detects rise of pulse and counts the number of pulses.
Pulse No. output
1
Integrates the input signal and converts it to number of pulses for output.
Decoder
1
Decodes 2-bit pure binary input and outputs it to 4 terminals.
Moving average
2
Calculates moving average of input data and outputs the result.
Sample hold
1
Holds the input value according to sample signal (0/1) and continues the output.
Dead time
6
Usable for dead time compensation control etc. Data sampling can be done in 1 sec or 1 min units.
ON-OFF
1
Outputs ON-OFF signal with hysteresis versus the input.
Alarm
1
Compares the input and set value and outputs the judgement result.
Position type pulse width
conversion
1
Performs output processing in time proportional PID control.
A variety of applications are possible through combination of wafers.
2
3. Input signals
5. Internal uniform data conversion
(1) Process variable input signal: One input selectable from
the following
(1) Analog data
Voltage input
signal
1 to 5V DC
Current input
signal
Input resistance 1MΩ or
more
Allowable error
± 0.2%/FS*
4 to 20mA DC
I+
I0
Thermocouple
input
I–
Resistance bulb
input
24V DC can be supplied to
transmitter in case of AC
power supply
Allowable error
± 0.2%/FS
Types
J : 0 to 600°C
K : 0 to 1200°C
E : 0 to 800°C
R : 0 to 1600°C
10mV DC span or more;
reference junction compensating function built in
Allowable error
± 0.5%/FS
Pt100Ω (0°C)
–50 to 500°C
50°C span or more
Allowable error
± 0.5%/FS
(2) Analog input signal: 3 points
External set point
Aux. analog input
Aux. analog input
CAS
AI1
AI2
1 to 5V DC
Input resistance 1MΩ
or more, allowable error
± 0.2%/FS
CAS is usable as aux. analog input.
(3) Digital input signal: 4 points
Manual mode command
Aux. digital input
Aux. digital input
SMV
DI1
DI2
Aux. digital input
DI3
Contact input
(Photocoupler
isolation)
ON 0V, OFF 24V
(Input current
about 11mA/24V
DC)
(4) Pulse width input signal: 1 set
Pulse width
input signal
PI+, PI–
Contact input
(Photocoupler
isolation)
ON 0V, OFF 24V
(Input current : about
11mA/24V DC)
(5) Valve opening input
Signal of valve
opening input
W+
W0
W–
0 to 1.5kΩ potentio-meter
or
1 to 5V DC input resistance
1MΩ or more
Standard
Minimum
Maximum
0.00 to 100.00%
–327.6%
327.67%
(2) Digital data
Input/output form
Data
ON (Contact closed)
0.01%
OFF (Contact open)
0.00%
6. Indication, setting, operation functions
(1) Bargraph indication
Indication method
PV indicator
SV indicator
MV indicator
Indication method
LED (Red)
LED (Green)
LED (Red)
No. of segments
101 + 2
101 + 2
51 + 2
Range
0 to 100%
linear
0 to 100%
linear
0 to 100%
linear
Resolution
1%/FS
1%/FS
2%/FS
Scale length
100mm
100mm
50mm
Indication mode
0 to 100% bargraph indication, 0 to 100%
reverse bargraph indication, dot indication,
–50 to 50% deviation indication
(2) Operation mode indication
Indication method:
LED (Red and green)
Red; M, SCC
Green; A, R
(3) Numerical indication, setting
Indication method:
LED (Red), name in 3 digits+number in
5 digits (Negative sign included)
Indication contents:
Process variable (Engineering unit), set
point (Engineering unit), high/low alarm
values, PID parameters etc.
Indication contents are selectable by F/S ,
,
keys on front panel.
Setting method:
4. Output signals
(1) Manipulated output signal: 1 set
Pulse width
output
PO+
PO–
Open collector
output
(Photocoupler
isolation)
Output rating
30V DC 0.1A max.
(2) Analog output signal: 3 points
Compensated PV signal
KPV
1 to 5V DC
Set point transmit signal SV
Aux. analog output
AO1
KPV and SV is usable as aux. analog output.
Output resistance
1Ω or less,
allowable error
± 0.2%/FS
(3) Digital output signal: 6 points
Fault output
Manual mode output
High alarm output
Low alarm output
Aux. digital output
Aux. digital output
FLT
M
H
L
DO1
DO2
Open collector
output
(Photocoupler
isolation)
H and L are usable as aux. digital output.
Note: *FS……full scale
Output rating
30V DC
0.1A max.
By use of F/S ,
on front panel.
(4) SV setting function
Fixed value setting method:
,
,
, ST keys
By
buttons on front panel.
Setting speed; about 40 sec/FS
Remote setting method:
By external set point signal
(Voltage or pulse width input)
(5) MV operating function
Manual operating method:
By
,
buttons on front panel.
(6) Operation mode changeover
By R/A/M pushbuttons on front panel.
R
A changeover
Balanceless bumpless
A
R changeover Voltage signal
Balance bumpless
Pulse width input
A or R
M changeover
Balanceless bumpless
Balanceless bumpless
*FS ........ full scale
3
PNC2
7. Power failure processing function
Power failure detection:
Control stoppage at power failure detection
During power failure:
Operating parameters backed up by capacitor when power failure within 5 minutes.
Initial set point and manipulated output
values, PID parameters etc. are stored in
nonvolatile memory (lasts for 10 years or
longer at ambient temperature of 50°C or
less).
Power failure recovery time:
Initial or continuous start settable for
power failure within 5 minutes. Recovery
from power failure lasting longer than 5
minutes is done by initial.
*Control mode at initialization is settable.
M: Manual mode
A: Automatic mode
R: Remote mode
SCC: SCC mode
8. Self-diagnosis functions
Computation/control circuit abnormality:
FLT indicator lights up, FLT contact output turns ON, and computation and control stop.
Manipulated output can be controlled
manually at FLT (Soft manual).
Input/output signal abnormality, manipulated output
deisconnection: FLT indicator lights up, FLT contact output turns ON, control stops, and manipulated output is held. Computation processing and output processing other than
for manipulated output continue.
Fault contents indication:
Cause of fault is indicated numerically on
numerical indicator of front panel.
9. Transmission functions
(1) Transmission items
Supervisory items:
From PNA to host
Process variable, set point, manipulated
output, deviation, operation mode, alarm
information, fault information, PID parameters, various limiter values, constants,
segmented line, analog input/output, digital input/output, control program (Wafer
connecting information) etc.
Setting operation items:
From host to PNA
Set point, manipulated output, operation
mode, PID parameters, various limiter
values, constants, segmented line, control program (Wafer connecting information) etc.
(2) Transmission setting inhibit:
Parameter setting enable/inhibit can be designated by
transmission from the host. Designation is done by F/S ,
,
4
,
, ST keys on the front panel.
(3) Transmission interface
CC data line or RS-422 interface selectable
① CC data line: Connected with transmission controller
(PMN)
Interface:
PMN and PNC; CC data line
(RS-232C for PMN and host)
Transmission speed:
19.2 KBPS
No. of units connectable:
15 max.
Transmission distance:
500m max.
Transmission form:
Multi-drop
Cord format: 12 bit binary
➁ RS-422:
Universal interface
Transmission speed:
2400, 4800, 9600 or 19200 BPS configurable
No. of units connectable:
31 max.
Transmission distance:
1km max.
Code format: One or two stop bits, parity EVEN/ODD/
NONE configurable.
10. Other functions
Data protective function by means of pass code
CODE SYMBOLS
1 2 3 4 5 6 7 8
PNC 2
9 10 11 12
5 -
Description
Process variable input signal
(Approx. 24V DC
1 to 5V DC
supply)
4 to 20mA DC
J thermocouple 10mV DC span or
K thermocouple more, with referE thermocouple ence junction comR thermocouple pensating function
Resistance bulb JPt100Ω (0°C)
3-wire type, 50°C span or more
Resistance bulb Pt100Ω (0°C)
3-wire type, 50°C span or more
A
B
C
D
E
F
G
W
Setting method
A-M type
R-A-M type
A
B
Power supply
24V DC (20 to 30V DC)
110V AC (85 to 132V AC) 50/60Hz
220V AC (187 to 264V AC) 50/60Hz
1
2
3
Valve opening input
1 to 5V DC
10-100-10Ω
1
2
Transmission function
RS-422
CC data line
R
C
Wafer connection
Without
With
0
1
Y
A
PID auto tuning function
Without
With
Note: Symbols of resistance bulbs are as
follows.
JPt100 ..... JIS C 1604-1981
Pt100 ..... IEC Pub751-1983
11. Operating conditions
Power supply:
Selectable from the following 3 types
24V DC (20 to 30V DC), 100V AC (85 to
132V/47 to 63Hz AC), 200V AC (187 to
264V/47 to 63Hz AC)
Power consumption:
Approx. 12W (DC), 20VA (AC)
Dielectric strength:
1500V AC for 1 minute
Insulation resistance:
100MΩ or more at 500V DC
Ambient temperature:
0 to 50°C
Ambient humidity:
90%RH or less
Enclosure:
Steel case
Enclosure class: Front IP65 (IEC 529)
Nameplate:
100(H) x 70(W), white acrylic
Dimensions:
144(H) x 72(W) x 391(D)mm, IEC (DIN)
standards
Mass{weight}:
Approx. 2.9kg
Mounting method:
Flush on indoor panel; vertical mounting
is standard
Mounting on tilted surface possible (Angle
α)
α=0° to 90°
Finish color:
Munsell N1.5 for front panel and case
Range of delivery: Controller and mounting bracket
Item prepared separately:
Transmission cable (Type PNZ)
VARIOUS CONTROL EXAMPLES
Basic type PID V control (Fixed
function)
This is a PID control function
which is fixedly defined beforehand. The definition can
be made through simple operation, and wafer connection is
unnecessary.
(Computation elements such
as square root, filter, limiter,
non-linear etc. can be made
valid or invalid through specification.)
PID control
Fixed value control is carried out
by using only the MAln control
block. PID control by means of
an external set point is also
performed. (Computation
elements such as square root,
filter, limiter, non-linear etc. can
be made valid or invalid through
specification.)
Cascade control
Cascade control is carried out
by combining two PID control blocks. By having the
output of the SUB PID controller follow up the set point
of the MAln PID controller, A
and R can be changed over
balancelessly.
Process
variable
External
set point
Filter
MV
P
I
D
R
SH
H
SL
MH
ML
R.A
L
A.M
Non-linear
PV tracking
command
Process
variable
Filter
PH
MV
PL
External
set point
R
SH
SL
A.M
PO
output
M
DV
H
Non-linear
MH
ML
P
I
D
R.A
M
PO
output
L
DV
MAIn control block
(MAIn PID)
Process
variable for
MAIn PID
R.A
PV
Filter
SV
MAIn PID
M
Process
variable for
SUB PID
External set
point
Filter
PO
output
R
SH
SUB PID
SL
A.M
EXT
SH
SL
INT
In other than remote mode, output tracking is
applied to the set point of MAIn PID.
5
PNC2
Ratio control
Ratio control is carried out by
combining a ratio computation
block and a PID control block.
Process
variable
PV
Filter
Process
variable
for ratio
control
Filter
SV
PV-B1
R.A
X
External
set point
Gain schedule control
Carries out PID control according to three (3) exponential PID parameter
patterns, which are stored in
the form of 7 segmented polygonal lines.
Process
variable
M
SL
INT
R
B2
PV
Filter
MAIn PID
SV
Output
Program
stop
command
STOP
R.A
M
R
7 segments
PO
output
A.M
PRESET
Preset
command
Time
Process
variable
PV
SV
Filter
MAIn PID
P
External
set point
PO
output
A.M
Program pattern
R
SH
SL
Suitable
index
6
X
SV+B3
SL
Program control
By combining a program setting block and a PID control
block, the set point is changed
and controlled via a time function.
A preset function is also provided for starting program
control from the present temperature in a furnace for control
of heating or the like.
R
SH
EXT
SH
MAIn PID
A.M
P
I
D
I
D
R.A
M
PO
output
EXTERNAL CONNECTION DIAGRAM
Block terminals (M4 screw)
Process
variable
input
DO
Manual mode)
DO
Aux. digital output)
DO
Manual mode
ommand)
I+
(PV) 11
I(SC) 12
M
13
DO 1 14
SMV 15
AC
16
31
Io
32
PI+
33
PI-
34
FLT
35
AC
AO
(Compensated PV signal)
AO
(Set point transmit signal)
AO
(Aux. analog output)
WO
(Bulb opening input)
AI, AO
Common line
PO
(Pulse width output)
Pulse width
input
DO
(FLT output)
DO
(High alarm output)
DO
(Low alarm output)
Instrument power
(DC 24V)
~
Instrument power (AC)
24V power for DI, DO.
Ground
KPV
51
71
SV
52
72
AO 1
53
73
WO
54
74
SC
55
75
PO+
56
76
PO–
57
77
H
58
78
L
59
79
– PC*
–
60
80
PCD
61
81
G
62
82
AI
(External set point input)
AI
AI 1
(Aux. analog input)
AI
AI 2
(Aux. analog input)
W+
W+
(Bulb opening input)
W–
W–
(Bulb opening input)
AI, AO
SC
(Common line)
DO
DO 2
(Aux. digital output)
DI
DI 3
(Aux. digital input)
DI
DI 2
(Aux. digital input)
DI
DI 1
(Aux. digital input)
+ Instrument power
VP*
(DC 24V)
+
VPD
24V power for DI, DO
CAS
Note * Symbols for AC power supply are VPO, PCO.
Output is 24V DC (0.1A max.) approx.
TERMINAL CONNECTION OF PV INPUT
+
DC 1 to 5V
(Code symbol "A"
in 5th digit)
DC 4 to 20mA
(Code symbol "B"
in 5th digit)
Thermocouple
(Code symbol
"C","D","E","F"
in 5th digit)
11
31
+
–
12
+
11
Resistance bulb
(Code symbol "G",
in 5th digit)
31
–
–
12
+
11
–
12
+
+
11
–
–
12
+
11
–
12
31
31
+
DC 4 to 20mA
power supply
(Code symbol "B"
in 5th digit)
–
31
PC
60
7
PNC2
OUTLINE DIAGRAM
Terminals
Terminal
cover
(Unit:mm)
16
144
Panel thickness 8 or less
140
Supporting
bracket
355
36
Mounting
bracket
200 MIN
72
Panel cutout
138
+1
0
250 MIN
When mounting "n" units
138
+1
0
200 MIN
When mounting one unit
68
TRANSMISSION CONNECTOR
1
6
SIG GND
(VST)
2 SHLD
7
8 RXD+
9 RXD–
3 INH
4 TXD+
+0.7
0
1
6
+1
0
SIG GND
(VST)
2 SHLD
BLACK
7
WHITE
8 RXD+
9 RXD–
5 TXD–
GREEN
(72.2n – 4)
No. of units
n 2
3 INH
4 TXD+
5 TXD–
YELLOW
BROWN
RED
6
7
8 RXD+
9 RXD–
1
SIG GND
(VST)
1
6
2 SHLD
7
3 INH
8 RXD+
4 TXD+
9 RXD–
5 TXD–
LINE
TERMINATION
RESISTORS
SIG GND
(VST)
2 SHLD
BLACK
3 INH
WHITE
4 TXD+
5 TXD–
GREEN
YELLOW
RED
BROWN
End station
HOST
MASTER
CONTROLLER
First station
Host
Terminating
resistance
Transmission cable
PNC2
PNC2
PNC2
PNC2
Caution on Safety
*Before using this product, be sure to read its instruction manual in advance.
Head Office
6-17, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
http://www.fesys.co.jp/eng
Sales Div.
International Sales Dept.
No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan
Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187
http: //www.fic-net.jp/eng
Information in this catalog is subject to change without notice.
Printed in Japan