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Mitsubishi Electronics FX2N-8AD manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    USER’S MANU AL FX 2N -8AD Ana log in put b l oc k[...]

  • Page 2

    FX2N -8AD A nalog inpu t bloc k Forew or d • This manual contai ns te xt, diagrams and e xplana tions whic h will gu ide the reader in the correct inst allation and operation o f the FX 2N -8AD An alog input bloc k. It shoul d be read an d understoo d bef o re attem pting to install or u se the u nit. • Fur ther inf o r mati on can be found in [...]

  • Page 3

    FX 2N -8AD Analog input b loc k USER’S MANU AL FX2N -8AD A nalog inpu t bloc k Manu al number : JY992D86001 Manu al re vision : C Date : April 2003[...]

  • Page 4

    FX2N -8AD A nalog inpu t bloc k ii[...]

  • Page 5

    FX2N -8AD A nalog inpu t bloc k iii Guidelines f or the Safety of the User and Pr otection of the FX 2N -8AD A nalog input bloc k. This manual pro vides inf or mation f or the use of the FX 2N -8AD Analo g input b l oc k. The manual has been written to be used by tr ained a nd competent pers onnel. The definition of su ch a person or perso ns is as[...]

  • Page 6

    FX2N -8AD A nalog inpu t bloc k iv Notes on the Symbols Us ed in this Manual At v ar ious times throughout this manual cer tai n symbols will be used to highlight points which are intended to ensure the users personal saf ety and protect the in tegrity of eq uipment. Whene v er any of the f o llowing symbols are enco untered its asso ciated note mu[...]

  • Page 7

    FX2N -8AD A nalog inpu t bloc k v • Under no circumstances will Mitsubi shi Electr ic be liab le respo nsible f or any consequential damage that ma y ar ise as a result of the in stallati on or use of this equipment. • All e xamples and diagr ams sho w n in this manual are intended only as an aid to understanding the te xt, not to g uarantee op[...]

  • Page 8

    FX2N -8AD A nalog inpu t bloc k vi[...]

  • Page 9

    FX2N-8AD Analog input b lock Contents. vii Guideline ...................... .................................... .................................... ........................ ...... iii 1. Intr oduction . ..... ..... ....... ..... .... ........ .... ..... ..... ....... ..... .... ........ .... ..... ....... 1-1 2. External Dimensions ..............[...]

  • Page 10

    FX2N-8AD Analog input b lock Contents. viii 8.2.14 BFM #32: Opera ting time .................................................................................. 8-26 8.2.15 BFM#33 disconn ection detection (Only go ods: since V1.10). ........................... 8-27 8.2.16 BFM #41 to BFM #48 : Offse t data BFM #51 to BFM #58: Gain data...... ........ [...]

  • Page 11

    Introduction 1 1-1 1. Intr od uction The FX 2N -8AD a nalog input b lock (hereafter ref erred to as "FX 2N -8AD") con v er ts 8 points of analog in put v alues (v oltage input, current input and temperature input) into d igital v alues , and tr ansf ers them to the PLC main unit. The FX 2N -8AD can be conn ected to FX 0N , FX 1N , FX 2N a[...]

  • Page 12

    FX2N-8AD Analog input b lock Introduction 1 1-2 4) Up to tw o FX 2N -8AD units can b e connected to FX 0N main un it, FX 0N e xtension unit, FX 1N main unit. Up to eight FX 2N -8AD units can be connected to one FX 2N Ser ies PLC . Up to f our FX 2N - 8AD units can be connected to one F X 2NC Ser ies PLC . (F or connection to the FX 2NC Series PLC ,[...]

  • Page 13

    External Dimensions 2 2-1 2. External Dimensions Figure 2.1: External Dimensions COM2 I8+ I4+ V3+ I3+ COM3 COM1 COM5 COM8 I5+ 24+ 24- POWER 24V V2+ I2+ V4+ V7+ V1+ I1+ COM4 V5+ V6+ I7+ I6+ COM6 COM7 V8+ 7.5(0.30) 7.5(0.30) 105(4.13) 8(0.31) 75(2.95) 90(3.54) 67(2.64) (installation dimension) 75(2.95) 8(0.31) FX 2N -8AD 98(3.86) (installation dimens[...]

  • Page 14

    FX2N-8AD Analog input b lock External Dimensions 2 2-2 MEMO[...]

  • Page 15

    Part Name 3 3-1 3. P a r t Name • F or wir ing, ref er to Section 6. • Ne v er perf or m wir ing to ter minals . T able 3.1: Status indicator LED Indication Descripti o n PO WER L it while 5 V pow er is nor mally supplied from PLC . 24 V Lit while 24 V pow e r is no r mally supplied to “24+” an d “24-” ter minals of FX 2N -8AD .V V1+ I1[...]

  • Page 16

    FX2N-8AD Analog input b lock Part Name 3 3-2 MEMO[...]

  • Page 17

    Installation 4 4-1 4. Installation Install th e FX 2N -8AD to the right side of a mai n unit, e xtension uni t, e xtension b loc k or speci al b loc k of the FX 0N /FX 1N /FX 2N /F X 2NC Series PLC . The FX 2N -8AD ca n be insta lled with a DIN r ail (DIN46277 of 35 mm in wid th) or di rectly installe d with screws M 4. F or the details , ref er to[...]

  • Page 18

    FX2N-8AD Analog input b lock Installation 4 4-2 Figure 4.1: Installation with DIN rail • The FX 2N -8AD can be i nstalled on a DIN r ail (DIN46277) of 35 mm in width as it is . F or remov al, pull down on the DIN r ail mounting hook, then rem ov e the FX 2N -8AD . Figure 4.2: Direct installation •T h e F X 2N -8AD can be ins tall ed directl y b[...]

  • Page 19

    Connection to PLC 5 5-1 5. Co nn ectio n to PLC Connect th e FX 2N -8AD to the r ight sid e of a m ain unit, e xtension unit or e xtension b loc k of FX 0N , FX 1N , FX 2N , FX 2NC Se r ies PLC with an e xtension cab le. F or connection t o a basic unit or e xtension b loc k of the FX 2NC Ser ies PLC , use an FX 2NC -CNV - IF . Please chec k power [...]

  • Page 20

    FX2N-8AD Analog input b lock Connection to PLC 5 5-2 MEMO[...]

  • Page 21

    Wiring 6 6-1 6. Wiring 6.1 Caution 1) Do not la y signal c ab le near to high v oltage po w er cab le or hous e them in the sam e tr unking duct. Eff ects of noi se or surge i nduction ma y occur . K e ep signal c ables a saf e distance of more than 100 m m (3.94") from these pow er cab les. 2) The term inal scre ws of the FX 2N -8AD are M3 (0[...]

  • Page 22

    FX2N-8AD Analog input b lock Wiring 6 6-2 Figure 6.2: Wiring Figure 6.3: Crimp T erminals V3+ COM3 I3+ V2+ I2+ V1+ I1+ COM1 24+ 24- *3 *2 *1 Shie l ded c able Thermo coupl e (K, J o r T type ) Current inp ut Vol t age in put 250 Ω 5.8k Ω 250 Ω 5.8k Ω 5.8k Ω 250 Ω 200k Ω CH3 CH2 CH1 AG *5 DC24V Class D groundi ng *4 Connect ed to termi[...]

  • Page 23

    FX2N-8AD Analog input b lock Wiring 6 6-3 *1 Use a tw o-core , twisted, shiel ded cabl e f or the analog inpu t line, and separ ate it from other po wer line s or a lines easi ly induced. *2 If there i s vo ltage r ipple in t he input or there i s noise in the e xter nal wir ing, conne ct a capacitor of appro ximately 0.1 to 0. 47 µ F, 2 5 V . *3 [...]

  • Page 24

    FX2N-8AD Analog input b lock Wiring 6 6-4 MEMO[...]

  • Page 25

    Specifications 7 7-1 7. Specifica tions T ab le 7.1: General specifications Item Specifications Ambient temperature range 0 to +55 ° C dur ing ope ration, -20 to +70 ° C dur ing storage Ambient humidity 35 to 85 % RH during operation (De w condensation shall not be allowed.) Vibration resistanc e In conf or mance to JIS C004 0 F requency 10 to 5 [...]

  • Page 26

    FX2N-8AD Analog input b lock Specifications 7 7-2 T able 7.2 : P ower supp ly specifications Item Specifications Interf a ce dr iving pow er supp ly 24 V DC±10%, 80 mA (maximum), supplied via ter minal from outside CPU driving power supply 5 V DC , 50 mA, supplied via e xtension cable from P LC main unit T ab le 7.3: P erf ormance specifications I[...]

  • Page 27

    FX2N-8AD Analog input b lock Specifications 7 7-3 T able 7.4 : V oltage/current input specific ations Item V olta g e input Curren t inp ut Analo g input r ange -10 to +10 V DC (input resistance: 200 k Ω ) Adjustme nt is enab l ed in f ollow ing c onditio n: Offset v alue: -10 to +9 V Gain v alue: 1 0 V or less "Gai n - Offs et": > 1[...]

  • Page 28

    FX2N-8AD Analog input b lock Specifications 7 7-4 • F or the I/O c haracteristics of th e v oltage/curren t/ther mocouple in put, ref er to Section 9. •F X 2N -8AD is from production goods (SERIAL 0 Z****) to V1.10 in December , 2000. T able 7.5 : Thermocouple input specifications Item K type thermocouple J type thermocouple T type ther mo coup[...]

  • Page 29

    Buffer Memory (BFM) 8 8-1 8. Buff er Memory (BFM) Caution 1) Do not access th e b uff er memor y of “Reser ved” (BFM #18, #23, #25, # 31, #33 to #40, #49 to 50, #5 9, #60, #69, #70, #79, # 80, #89, #90, #99, #10 0, #120 to #197) by th e FR OM/T O instr uction. There is a pos sibility to cau se abnor mal oper ation of the FX 2N - 8AD if acces s [...]

  • Page 30

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-2 Data tr ansf er betwee n the FX 2N -8AD and th e PLC m ain u nit is perf or med th rough buff er memories (hereafter ref erred to as "BFM") of th e FX 2N -8AD . Each BF M consists of 1 word, 16 bi ts. The BFM No . 0 to 3399 and a function are a ssigned to each BF M. Use FR OM/T O inst[...]

  • Page 31

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-3 8.1 Buffer Memorie s (BFM) lists T ab le 8.1: BFM Lists BFM No. Desc ription Hold aga inst po wer failur e Initial v alue #0 Specif ies input mode of CH1 to CH4 . ¡ H0000 at ship ment #1 Specif ies input mode of CH5 to CH8 . ¡ H0000 at ship ment #2 Number of times o f a v e r aging of CH1 S e[...]

  • Page 32

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-4 #18 Reser v ed  #19 Disab les sett ing change of I/ O characte r i stics (BFM #0, BFM #1, BFM #21) and co nv enient function s (BFM #22) . Disab les change .: K2, Enab les change .: K1 ¡ K1 a t shipme nt #20 Init ia li zes fu n ct io n s. (Init ializ es functions at K1, then returns auto[...]

  • Page 33

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-5 #32 Oper ating time 0 to 64,80 0 (s) After th at, 64,800 is k ept. Measur eme nt star ts wh en pow er i s turned on, a nd meas ured v alue is reset when po wer is turned off .  K0 #33 Thermo-couple dis connectio n detect ion(V1.10 or hi gher .) It e x ecu tes the disconne cti on detection wi[...]

  • Page 34

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-6 #53 CH3 gain data (mV or µ A) ¡ K5000 at shipment #54 CH4 gain data (mV or µ A) ¡ K5000 at shipment #55 CH5 gain data (mV or µ A) ¡ K5000 at shipment #56 CH6 gain data (mV or µ A) ¡ K5000 at shipment #57 CH7 gain data (mV or µ A) ¡ K5000 at shipment #58 CH8 gain data (mV or µ A) ¡ K[...]

  • Page 35

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-7 #68 CH8 addit ion data Setting r ange: -16,0 00 to +16, 000 (v al id w hile B FM #22 b 0 is ON)  K0 • • • Reser v ed  #71 CH1 low er limit v alue error set v alue (v alid while BFM #22 b1 is ON)  Min imum digit al val ue inside inp ut rang e #72 CH2 low er limit v alue error s[...]

  • Page 36

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-8 #81 CH1 upper limi t va lue error set v alue (v alid while BFM #22 b1 is ON)  Maximum digital v alue inside input range #82 CH2 upper limi t va lue error set v alue (v alid while BFM #22 b1 is ON)  Maximum digital v alue inside input range #83 CH3 upper limi t va lue error set v alue (v a[...]

  • Page 37

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-9 #93 CH3 sudden chan ge de tection set v alue Setti ng r ange: 1 to 50% of fu ll scale (v alid while B FM #22 b2 is ON)  5% of full sca le #94 CH4 sudden chan ge de tection set v alue Setti ng r ange: 1 to 50% of fu ll scale (v alid while B FM #22 b2 is ON)  5% of full sca le #95 CH5 sudde[...]

  • Page 38

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-10 #107 CH7 peak v alue (mi nimum val ue) (v alid whil e BFM #22 b3 is ON)  Refer to 8.2. 21. #108 CH8 peak v alue (mi nimum val ue) (v alid whil e BFM #22 b3 is ON)  #109 P eak v alue (mini mum v al ue) reset flag  K0 #110 Un usab le  Refer to 8.2. 21. #111 CH1 peak v alue (maxim um [...]

  • Page 39

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-11 #199 Rese ts or stops data history . (v alid onl y in cha nnels f or which numb er of times of a ver aging (BFM # 2 t o #9) is se t to "1 ")  K0 #2 00 C H1 data hist or y (1s t value) Data hist or y sam pling is v alid only in chann els f or which number of times of a v eraging (B[...]

  • Page 40

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-12 • • • Data hist or y sam pling is v alid only in chann els f or which number of times of a v eraging (BFM # 2 t o #9) is se t to "1 ".  #3397 CH8 dat a histor y (398th v alue)  K0 #3398 CH8 dat a histor y (399th v alue)  K0 #3399 CH8 dat a histor y (400th v alue)  K[...]

  • Page 41

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-13 8.2 Details of b uffer memories 8.2.1 BFM #0, #1: Specifies inp ut mode . Specify the inpu t mode of CH1 to CH4 b y writing a numeric v alue to BFM #0. Specify the input mode of CH5 to CH8 b y wr iting a num er i c v a lue to BFM #1. In the inpu t mode specifi cation, ea ch BFM is e xpressed i[...]

  • Page 42

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-14 ¡ =8: Curre nt inpu t mod e , analo g v a lue d irect d ispla y (- 20,000 to +20, 000), resolu tion 2.50 µ A ¡ =9: Ther mocouple in put mode, K type, Celsius displa y (-100 to +1,200 ° C), re so lu ti o n 0 .1 ° C ¡ =A: Ther mocouple inp ut mode, J type , Celsius disp la y (-100 to +600 [...]

  • Page 43

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-15 8.2.2 BFM #2 to BFM #9: Number of tim es of avera ging When using BFM #10 to #17 as the av erage da ta, wr ite t he number of times of a v eragin g to BFM #2 to BFM #9. The setting range of the n umber of tim es of a v eraging i s 1 to 4,095. Ho we v er , when yo u set the numbe r o f times of[...]

  • Page 44

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-16 Update of a ver age data • When the n umber of times of a v erag ing (BFM #2 to BFM #9) is s et to "400" or less , the a v erage (BFM #10 to BFM #17) is updated e v er y ti me the A/D con versi on processing is perf or med. At this time, the a v erage is alwa ys calculated b y samp[...]

  • Page 45

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-17 8.2.3 BFM #10 to BFM #1 7: Channel data The A/D con v ersion data o f each channel is written to BFM #10 t o BFM #17. Y ou can select the immedia te (curre nt v alue) data or the a v er age data b y se tting the n umber of times of a v eraging (BFM #2 to BFM #9) described abo v e. 8.2.4 BMF #1[...]

  • Page 46

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-18 8.2.6 BFM #21: Wri tes I/O characteristics Each chann el No . is assigned to the lo wer ei ght bits of BFM #21. When a bi t is set to ON, the offset data (BFM #41 to BFM #48) and the gain data (BFM #51 to BFM #58) of the assigned channel No . are written to the b uilt-in memor y (EEPR OM), and[...]

  • Page 47

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-19 8.2.7 BFM #22: Sets con venient functions The functio ns descr ibed be low are assigne d to b0 to b3 of BFM #22. When a bit is set to ON, the assig ned function beco mes v alid. When a bit i s set to OFF , the ass igned functio n becomes in v alid. b0: Data add ition functio n The data (BFM #1[...]

  • Page 48

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-20 8.2.8 BFM #24: Specifies high-speed con vers ion channel When using only the v oltage input m ode and the curren t input mode , you c an improv e the A/D con v ersion timing (to 1/4 of the nor mal timing) f or only one channel among CH1 to CH8. Ho we ve r , the con v ersion timi ng becomes slo[...]

  • Page 49

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-21 8.2.9 BFM #26: Upp er/lower limit v alue err or status When y ou use the u pper/lo w er limit v alue detection funct ion (BFM #22 b1), the de tection res ult is written to BFM #26. The lo wer lim it v alue error or t he u pper lim it v alue error of e ach cha nnel is as sig ned to e ach bit of[...]

  • Page 50

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-22 8.2.10 BFM #27: A/D data sud den change detection status When y ou use the sudden change detection function (BFM #22 b2), the detection result is wri tten to BFM #2 7. The sud den change de tection + d irectio n or the sudden change de tection - dir ection of each channel is assign ed to each [...]

  • Page 51

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-23 8.2.11 BFM #28: Scale o ver status When the analog input v alue of each channel is outside the range in which A/D conv ersion is a v ailab le, the result is written to BFM #28. Once a bit tur ns ON, it remains ON until it is ov erwr itten with the OFF status b y the T O instruction giv en b y [...]

  • Page 52

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-24 T able 8.5 : Bit assignment in BFM #28 Bit No. Channel No. Description b0 CH1 Scale o v er : Less than lower limit b1 Scale ov er : More than upper limit and disconnection detection b2 CH2 Scale o v er : Less than lower limit b3 Scale ov er : More than upper limit and disconnection detection b[...]

  • Page 53

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-25 8.2.12 BFM #29: Err or status The error inf or mation is assigned to each bit of BFM #29. T able 8.6 : Bit assignment in BFM #29 Bit No. Assignment Description b0 Error d etected b0 is ON while eith er one among b1 to b4 is ON. b1 Offset/gain set v alue error Offset/gain v alue is outside sett[...]

  • Page 54

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-26 8.2.13 BFM #30: Model code BFM #30 store s the fix ed v alue "K2050". 8.2.14 BFM #32: Operating time BFM #32 store s the contin uous oper ating time of th e FX 2N -8AD . Measurement star ts when the pow er is t ur ned on, and the measu r ed v alue is reset when the power is tur ned o[...]

  • Page 55

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-27 8.2.15 BFM#33 disconnection d etection (Onl y goods: since V1.10). It does the disconnection detection of all channels used by writing K1 in BFM#33 in the ther mo-couple input mode (Set it b y BFM#1 and # 0). It e x ecutes the dis connection detection only once , and the res ult is written in [...]

  • Page 56

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-28 8.2.16 BFM #41 to BFM #48: Offset da ta BFM #51 to BFM #5 8: Gain data Offset data : Analog input v alue when the digit al va lue is "0" Gain data : Analog inpu t v alue when the d igital v alue is as sho wn belo w (The di gital v alue v ar ies dependin g on the setting of th e input[...]

  • Page 57

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-29 Initial offset/gain value (Un i t: mV f or v oltage input, µ A f or current input) Setting range Ho we ver , the actual eff ectiv e input r ange is "-10 to +10 V" or "-20 to +20 m A". T able 8.8 : Initial offset/gain v alue Input mode (BFM #0, BFM #1) 012345 678 Initial of[...]

  • Page 58

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-30 8.2.17 BFM #61 to BFM #68: Ad dition data When you use the data addition functio n (BFM #22 b0), the data ( BFM #10 to BFM #17), the peak v al ue (BFM #101 to BFM #108, BFM #111 to BFM #118) and the data his tor y (BFM #200 to BFM #999) of each channel become the measured v alue added b y the [...]

  • Page 59

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-31 8.2.18 BFM #71 to BFM #78: Lo wer limit, err or set v alue BFM #81 to BFM #8 8: Upper limit, err or set v alue When usi ng the upper/lower limit v alu e detection f unction ( BFM #22 b1 ), writ e the lower limit v alue of each channel to BFM #71 to BFM #79 and the upper limit v a lue of each c[...]

  • Page 60

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-32 7: Current input mode (-20 to +2 0 mA), re so lution 20 mA x 1/4,000 -4 096 to 4095 -4096 4095 8: Cur rent in put mode, an alog v alu e dir ect d ispl a y (-20 ,000 t o +20, 000) -20400 to 20400 -20400 20400 9: Ther mo couple input mode (K type), Celsi us displa y -1000 to 12000 -1000 12000 A:[...]

  • Page 61

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-33 8.2.19 BFM #91 to BFM #98: Sud den change detection set v alue When using the su dden change detection function (BFM #22 b2), wr ite the set v alue to judge the sudden change. When th e data (BFM #10 to BFM # 17) of eac h channel is updat ed, if the di ff erence bet ween the pre vious v alue a[...]

  • Page 62

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-34 A: Ther mocoupl e input mode (J type), Celsius displa y 1 to 3500 35 0 B: Ther mocoupl e input mode (T type), Celsius displa y 1 to 4500 450 C: Ther mocouple input mode (K type ), F arenheit display 1 to 11700 1170 D: Ther mocou ple input mod e (J type), F arenh eit disp la y 1 to 6 300 63 0 E[...]

  • Page 63

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-35 8.2.20 BFM #99: Clear s upper/lower limi t v alue err or and sudde n change detection err or The commands to clear the lower limit v alue error , the upp er limit v a lue error and the sudden change det ection error are assi gned to the lo wer three bits o f BFM #99. When a bit is set to ON, t[...]

  • Page 64

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-36 8.2.21 BFM #101 to BFM #108: P eak v alue (minim um v alue) BFM #111 to BFM # 118: P eak v alue (maxim um value) When y ou use the peak v alue hold function (BFM #22 b3), one of th e con v enient funct ions , the minimum v alue of the data (BFM #10 to BFM #17) of each channel is wr itten to BF[...]

  • Page 65

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-37 8.2.22 BFM #109: P eak va lue reset flag (minim um value) BFM #119: P eak v alue reset flag (max imum v alue) When y ou use the peak v alue hold function (BFM #22 b3), BFM #109 clears the peak v alue (minimum v alue) stored in BFM #101 to BFM #108, and BFM #119 clears the peak v alue (maxim um[...]

  • Page 66

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-38 8.2.23 BFM #198: Data history sampling time Set the d ata histor y sampli ng time . BFM #198 is v alid only in c hannels f or which the n umber of tim es of a v eragin g (BFM #2 to #9) is set to "1". Setting range 0 to 30,000 ms Sampling c ycle When onl y v oltage input and curre nt [...]

  • Page 67

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-39 When the high-speed c on ver sion mode is used (and onl y v oltage input and current input are used) When the set v alue is "0" or "1" Channel sp ecified f or high-speed c on vers ion : 1 ms Other channel s : 1 ms x Numb er of eff ectiv e channels When the set v alue is &qu[...]

  • Page 68

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-40 8.2.24 BFM #199: Resets or stops data history The data histor y reset function is assigned to the lo wer eight bits of BFM #199. The data histor y stop func tion is ass i gned to the upper eight b its of BFM #199. Each functio n is val id only in channels f or which the num ber of times of a v[...]

  • Page 69

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-41 8.2.25 BFM #200 to BFM #3399 : Data history The A/D con v ersion of eac h channel is sampled, and written to BFM #200 to BFM #3399. The tab le belo w sh o ws th e assign ment of ch annel No . and BFM No . Data is stored in turn from the small est BFM No . Up to 400 v alues can be stored f or e[...]

  • Page 70

    FX2N-8AD Analog input b lock Buffer Memory (BFM) 8 8-42 MEMO[...]

  • Page 71

    Adjustment of I/O Characteristics 9 9-1 9. Adjustme nt of I/O Characteristics At the time of shipment from the f actor y , the FX 2N -8AD has t he standard I/O char acter isti cs in accordanc e with each input mode (BFM #0, BFM #1). In the v oltage input mode and the current input mode , y ou can ad just the standard I/O char acter istics f or each[...]

  • Page 72

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-2 9.1 Standar d I/O characteristics Explanation on des cription The input m ode of the standard I/ O characte r istics is abbre viated as sho wn belo w . Figure 9.1: Standard I/O characteristic s 0. V oltage input, -10 to 10V , 20V × 1/32,000 ➀ ➁ ➂ ➃ ➀ ➁ ➂ ➃ : Input[...]

  • Page 73

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-3 Digital v alue -10 10 10,00 0 Approx . -10, 200 Approx . +10.2 V Approx . -10.2 V -10,0 00 Approx . +10, 20 0 Input volta ge (V) Digital value Input c urrent (mA) 04 2 0 8,000 2. V olta ge input, d ire ct displa y (-10,00 0 t o +10,000) 3. Cu rrent inpu t, 4 to 20 mA, 16 mA x 1 /8[...]

  • Page 74

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-4 Digital v alue -20 20 8,00 0 -8,00 0 Inpu t current (mA) 0 Digital value -20 20 4,000 -4,000 Input current (mA) 0 6. Curre nt in put, -20 to +20 mA, 40 mA x 1/1 6,000 7. Curre nt in put, -2 0 to +20 mA, 40 mA x 1/ 8,000 Digital value -20 20 20,00 0 -20,00 0 Input current (mA) 0 Di[...]

  • Page 75

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-5 Digital v alue 0 6,00 0 -1,00 0 Inpu t tem perat ure (°C) -100 600 Digital value 0 3,500 -1,000 Input temp erat ure (°C) -100 350 A. Ther moco uple input , J typ e , Celsius B. Ther mo coupl e inpu t, T typ e, Celsius Digital value 0 21,92 0 -1,480 Input temp erat ure (°F) -148[...]

  • Page 76

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-6 Digital v alue 0 6,62 0 -1,48 0 Inpu t tem perat ure (°F) -148 662 E. Ther moco uple input , T type, F are nheit[...]

  • Page 77

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-7 9.2 Adjustment of I/O characteristics Adjust the I/ O characte r isti cs using the b uff er memories in the FX 2N -8AD . At first, write the inp ut mode to BF M #0 and BFM #1, write the offset data to BFM #41 to BFM #48, then write the ga in data to BFM # 51 to BFM #58. Afte r tha[...]

  • Page 78

    FX2N-8AD Analog input b lock Adjustment of I/O Characteristics 9 9-8 Figure 9.2: Example pr ogram *1 It ta kes app ro ximately 5 seconds to change the i nput mod e (BFM #0, BMF #1) (to change each set v alue). Assure the time inter v al of 5 seco nds or more after change of th e input mode unt il e x ecution of write of each setting (T O instr ucti[...]

  • Page 79

    Example program 10 10-1 10. Examp le pr ogram This secti on intr oduces an e xample of prog r am to tak e analog data to the PLC using the FX 2N - 8AD . Condition System configuration: The FX 2N -8AD (unit No . 0) is connected a s a speci al bloc k nearest to t he FX 2N /FX 2N C Seri es PLC main unit. Input mode: CH1 and CH2 : Mode 0 (v oltage inpu[...]

  • Page 80

    FX2N-8AD Analog input b lock Example program 10 10-2 Data history function: Used while sa mpling time is set to 0 ms (i nitial v alue). CH1 to CH4 : Sampling ti me = 1 ms x 6 (Nu mber of eff ectiv e channels) = 6 ms CH5 and CH6 : Sampling ti me = 40 ms x 6 (Numbe r of eff ectiv e channels) = 240 ms I/O assignment: X001 : Clears the up per/low er li[...]

  • Page 81

    FX2N-8AD Analog input b lock Example program 10 10-3 Figure 10.1:Example program M80 0 2 K0 K0 H3 30 0 K1 K0 K1 HFF99 K1 K0 K22 H0 00 2 K1 K0 K1 0 D0 K6 K0 K26 K4M0 K1 Spec i f ies t he inp ut mode of CH1 to CH4. Spec i f ies t he inp ut mode of CH5 to CH8. Enable s the uppe r/lower limit value detection function. Reads t he c hannel dat a from CH1[...]

  • Page 82

    FX2N-8AD Analog input b lock Example program 10 10-4 • • • Y0 M0 Lower li mit valu e er ror of CH1 Y1 M1 Upper li mit valu e er ror of CH1 Y17 M15 Upper li mit valu e er ror of CH8 Y20 M20 Scale ove r error of CH 1 (lowe r limit valu e) Y21 M21 Scale ove r error of CH 1 (upper limit value ) Y37 M35 Scale ove r error of CH 8 (upper limit value[...]

  • Page 83

    FX2N-8AD Analog input b lock Example program 10 10-5 Note: When man y FR OM/T O instructions are e x ecuted in the same sc an, the PLC might h av e a w atchdog timer error . In this case , add a wa tchdog timer reset (FNC07 WDT) instruction with each FR OM/T O instr uction. Refres hes t he wat ch dog ti mer. *1 T0 K0 K200 D10 K10 K0 K600 D20 K10 K0[...]

  • Page 84

    FX2N-8AD Analog input b lock Example program 10 10-6 MEMO[...]

  • Page 85

    Appendix A A-1 Append ix A: Assoc iated Man uals Lis t F or fur ther inf or mation manua l about FX Series, ref er to f ollowin g tab le. T able A-1: List of Further Info rmation Manual Manual Name Manual No. Description FX 0 /FX 0N Hardware Manual JY992D47501 This manual contains hardware e x plan ations of wir ing, installation and sp ecification[...]

  • Page 86

    FX2N-8AD Analog input b lock Appendix A A-2 MEMO[...]

  • Page 87

    [...]

  • Page 88

    HEAD OF FICE: MITSUB ISHI DE NKI BLD G MARUNO UCHI TOKYO 100- 8310 HIMEJI WORKS: 840, CHIYODA CHO , HIMEJI, JAPA N JY992D860 01C (MEE) Effective Apr. 20 03 Specifications are sub uject tochan ge without notice. USER’S MANU AL FX 2N -8AD Analog input b loc k MODEL FX2N-8AD-U-E MODEL CODE 09R608[...]