data sheet pnc2 the compact controller s (programmable type) is a com- pact 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 flex- ible system with a high cost/performance. 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 sys- tem. 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 con- trol 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 non- volatile memory enables retaining the control and com- putation 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. personal computer serial communication interface other controllers communication terminals constant 1 d/a converter auxiliary analog input 1 (ai1) valve opening input (resistance) (w) auxiliary analog input 2 (ai2) process variable input (pv) external set point input (cas) auxiliary digital input 1 (di1) auxiliary digital input 2 (di2) auxiliary digital input 3 (di3) manual mode command (smv) pulse width input (pi-) pulse width input (pi+) a/d converter external input terminals fault up to 24 wafers usable manual computation wafer sub control block (cascade control, ratio control or schedule control) main control block (basic control) control wafer mv kpv sv alarm flt indictor h indictor l indictor compensated pv signal (kpv) set point transmit signal (sv) manipulated output (pulse width) (po) auxiliary analog output 1 (ao1) manual mode output (m) low alarm (l) high alarm (h) auxiliary digital output 2 (do2) auxiliary digital output 1 (do1) fault output (flt) external output terminals constant 32 bargraph indicator control wafer pv sv 4 to 20ma, thermocouple rtd conversion resistance input converter fc series compact controller s (programmable, step output type) features functional diagram date EDS11-102E jan. 27, 1999
pnc2 2 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 determined by pv change rate alarm wafer connection dv high/low alarm alarms are indicated with front panel lights control cycle: 0.2 sec (24 wafer type) 0.4 sec (48 wafer type) 2. computation functions (1) wafer the wafer is a functional unit software package contain- ing control and computation functions needed for meas- urement 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 selec- tion according to the control purpose. for control .......... pid control, ratio control, program control, gain scheduler, pid para- meter setting ? 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 1 carries out temperature and pressure compensation through use of differential pressure, compensated compensation 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 (pos itive, 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?n 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 resu lt. 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 1 performs output processing in time proportional pid control. conversion a variety of applications are possible through combination of wafers. specifications
3 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% 0 to 100% 0 to 100% linear linear 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, ?0 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: by use of f/s , , , , st keys on front panel. (4) sv setting function fixed value setting method: 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 balanceless bumpless a or r m changeover balanceless bumpless *fs ........ full scale 3. input signals (1) process variable input signal: one input selectable from the following voltage input signal 1 to 5v dc input resistance 1m ? or more allowable error 0.2%/fs* current input signal 4 to 20ma dc 24v dc can be supplied to transmitter in case of ac power supply allowable error 0.2%/fs thermocouple input 10mv dc span or more; reference junction com- pensating function built in allowable error 0.5%/fs resistance bulb input 50 c span or more allowable error 0.5%/fs i + i 0 i 5. internal uniform data conversion (1) analog data standard minimum maximum 0.00 to 100.00% 327.6% 327.67% external set point cas 1 to 5v dc input resistance 1m ? aux. analog input ai1 or more, allowable error aux. analog input ai2 0.2%/fs cas is usable as aux. analog input. (2) analog input signal: 3 points (3) digital input signal: 4 points aux. digital input di1 aux. digital input di2 aux. digital input di3 manual mode command smv (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 types j : 0 to 600 c k : 0 to 1200 c e : 0 to 800 c r : 0 to 1600 c pt100 ? (0 c) 50 to 500 c on 0v, off 24v (input current about 11ma/24v dc) contact input (photocoupler isolation) po + po open collector output (photocoupler isolation) pulse width output output rating 30v dc 0.1a max. 4. output signals (1) manipulated output signal: 1 set output rating 30v dc 0.1a max. open collector output (photocoupler isolation) fault output flt manual mode output m high alarm output h low alarm output l aux. digital output do1 aux. digital output do2 h and l are usable as aux. digital output. note: *fs full scale (4) pulse width input signal: 1 set on 0v, off 24v (input current : about 11ma/24v dc) contact input (photocoupler isolation) (5) valve opening input pulse width input signal pi + , pi 0 to 1.5k ? potentio-meter or 1 to 5v dc input resistance 1m ? or more signal of valve opening input w + w 0 w (3) digital output signal: 6 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 1 ? or less, allowable error 0.2%/fs (2) analog output signal: 3 points
pnc2 4 7. power failure processing function power failure detection: control stoppage at power failure detec- tion during power failure: operating parameters backed up by ca- pacitor when power failure within 5 min- utes. 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 out- put turns on, and computation and con- trol stop. manipulated output can be controlled manually at flt (soft manual). input/output signal abnormality, manipulated output deisconnection: flt indicator lights up, flt contact out- put turns on, control stops, and manipu- lated output is held. computation proc- essing 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 para- meters, various limiter values, constants, segmented line, analog input/output, digi- tal 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, con- trol program (wafer connecting informa- tion) etc. (2) transmission setting inhibit: parameter setting enable/inhibit can be designated by transmission from the host. designation is done by f/s , , , , st keys on the front panel. (3) transmission interface cc data line or rs-422 interface selectable 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 ? rs-422: universal interface transmission speed: 2400, 4800, 9600 or 19200 bps con- figurable 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 note: symbols of resistance bulbs are as follows. jpt100 ..... jis c 1604-1981 pt100 ..... iec pub751-1983 code symbols 12345678 9101112 pnc2 a b c d e f g w a b 1 2 3 0 1 1 2 r c y a 5- description process variable input signal 1 to 5v dc 4 to 20ma dc j thermocouple k thermocouple e thermocouple r thermocouple resistance bulb jpt100 ? (0 c) 3-wire type, 50 c span or more resistance bulb pt100 ? (0 c) 3-wire type, 50 c span or more 10mv dc span or more, with refer- ence junction com- pensating function setting method a-m type r-a-m type power supply 24v dc (20 to 30v dc) 110v ac (85 to 132v ac) 50/60hz 220v ac (187 to 264v ac) 50/60hz valve opening input 1 to 5v dc 10-100-10 ? transmission function rs-422 cc data line pid auto tuning function without with (approx. 24v dc supply) wafer connection without with
5 basic type pid v control (fixed function) this is a pid control function which is fixedly defined be- forehand. the definition can be made through simple opera- tion, and wafer connection is unnecessary. (computation elements such as square root, filter, limiter, non-linear etc. can be made valid or invalid through speci- fication.) 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: 100m ? 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 ) finish color: munsell n1.5 for front panel and case range of delivery: controller and mounting bracket item prepared separately: transmission cable (type pnz) 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 con- trol blocks. by having the output of the sub pid con- troller follow up the set point of the maln pid controller, a and r can be changed over balancelessly. filter a.m dv non-linear p v tracking c ommand external set point process variable r sh sl h p i d m r.a po output l mv mh ml filter external set point process variable a.m r sh sl ph pl m r.a po output dv non-linear main control block (main pid) h l p i d mv mh ml filter filter main pid sub pid int in other than remote mode, output tracking is applied to the set point of main pid. external set point process variable for sub pid process variable for main pid ext sh sl sh sl a.m r m r.a pv sv po output =0 to 90 various control examples
pnc2 6 gain schedule control carries out pid control ac- cording to three (3) ex- ponential pid parameter patterns, which are stored in the form of 7 segmented po- lygonal lines. ratio control ratio control is carried out by combining a ratio computation block and a pid control block. program control by combining a program set- ting block and a pid control block, the set point is changed and controlled via a time func- tion. a preset function is also pro- vided for starting program control from the present tem- perature in a furnace for control of heating or the like. filter filter pv-b1 sv+b3 main pid int external set point process variable for ratio control process variable ext sh sl sh sl a.m r m r.a pv sv po output xx r b2 filter main pid preset command program stop command process variable a.m program pattern r m r.a pv sv po output time 7 segments output stop preset filter suitable index external set point process variable m r.a pv sv po output a.m r main pid sh sl p i pid d
7 block terminals (m4 screw) terminal connection of pv input note * symbols for ac power supply are vpo, pco. output is 24v dc (0.1a max.) approx. ground kpv sv ao 1 wo sc po+ po h l pc* pcd g 51 52 53 54 55 56 57 58 59 60 61 62 71 72 73 74 75 76 77 78 79 80 81 82 cas ai 1 ai 2 w+ w sc do 2 di 3 di 2 di 1 vp* vpd + + 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) do (high alarm output) do (low alarm output) instrument power (dc 24v) 24v power for di, do. ai (external set point input) ai (aux. analog input) ai (aux. analog input) w+ (bulb opening input) w (bulb opening input) ai, ao (common line) do (aux. digital output) di (aux. digital input) di (aux. digital input) di (aux. digital input) instrument power (dc 24v) 24v power for di, do m do 1 smv ac i+ (pv) i - (sc) 11 12 13 14 15 16 io pi+ pi - flt ac 31 32 33 34 35 ~ pulse width input process variable input d o m anual mode) d o m anual mode ommand) d o a ux. digital output) do (flt output) instrument power (ac) 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) resistance bulb (code symbol "g", in 5th digit) dc 4 to 20ma power supply (code symbol "b" in 5th digit) 11 + 31 12 11 12 11 12 11 12 11 12 31 31 60 pc 31 31 + + + + + + + external connection diagram
pnc2 6 7 8 9 1 2 3 4 5 sig gnd (vst) shld inh txd+ txd rxd+ green red yellow brown black white rxd 6 7 8 9 1 2 3 4 5 sig gnd (vst) shld inh txd+ txd rxd+ rxd 6 7 8 9 1 2 3 4 5 sig gnd (vst) shld inh txd+ txd rxd+ green red yellow brown black host master controller white rxd 6 7 8 9 1 2 3 4 5 sig gnd (vst) shld inh txd+ txd rxd+ line termination resistors rxd pnc2 pnc2 pnc2 pnc2 host transmission cable terminating resistance end station first station terminal cover terminals panel thickness 8 or less 140 16 supporting bracket 200 min when mounting one unit when mounting "n" units 355 36 mounting bracket 144 72 panel cutout 250 min (72.2n 4) +1 0 138 +1 0 no. of units n 2 200 min 138 +1 0 68 +0.7 0 outline diagram (unit:mm) transmission connector information in this catalog is subject to change without notice. printed in japan 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 caution on safety *before using this product, be sure to read its instruction manual in advance.
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