FX2N-1HC SPECIAL FUNCTION BLOCK USER'S GUIDE
Contents
1. 3 SPECIFICATIONS 3 1 Environmental specifications Item Specification Environmental specifications excluding following Same as those for the FX2N main unit Dielectric withstand voltage 500V AC 1min between all terminals and ground 3 2 Performance specifications it 1 phase input 2 phase input em 1 input 2 inputs 1 edge count 2 edge count 4 edge count Phase A Phase B A24 B24 24V DC 10 7mA or less A12 B12 12V DC 10 7mA or less Signal level A5 B5 3 5V to 5 5V DC 10 5mA or less 9 PRESET DISABLE XP24 XD24 10 8V to 26 4V DC 15mA or less XP5 XD5 5V DC 10 8mA or less Selected by terminal connection Input signal MAX frequency 50 kHz 25 kHz 12 5kHz t1 Rise fall time is 3ms or less ti lt t t2 ON OFF pulse duration 10us or more t2 2 b3 Phase difference between phase A and Pulse shape 13 phase B is 3 5ms or more eJ PRESET Z phase input 100us or more DISABLE count prohibit input 100ms or more Format Automatic UP DOWN however when on 1 phase 1 input mode UP DOWN is determined by a PLC command or an input terminal Range When 32 bit is specified 2 147 483 648 to 2 147 483 647 9 When 16 bit is specified 0 to 65 535 upper limit can be user specified Counting Each output is set when the present value of the counter matches with the specification compare value which is transferr2. 21 20 300ms Preset data BFM 11 10 TO O h Compare results Direct initialization abe 26 1 Comparison is made at the next sampling point Maximum value Terminai satus after an input count BFM 23 22 BFM 27 Model code Minimum value BFM 30 BFM 25 24 Guidelines for the safety of the user and protection of the FX2N 1HC special function block This manual has been written to be used by trained and competent personnel This is defined by the European directives for machinery low voltage and EMC If in doubt at any stage during the installation of the FX2N 1HC always consult a professional electrical engineer who is qualified and trained to the local and national standards If in doubt about the operation or use of the FX2n 1HC please consult the nearest Mitsubishi Electric distributor Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment All examples and diagrams shown in this manual are intended only as an aid to understanding the text not to guarantee operation Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples Owing to the very great variety in possible application of this equipment you must satisfy yourself as to its suitability for your specific application JY992D65401C Manual number JY992D65401
3. 4 BFM 4 value It will turn ON only when a match occurs by the counting of b9 b10 b9 b10 input pulses L The YS comparison operation takes about 300us and if a match Co cidence output Coincidence output occurs the output goes ON Output occurs when the current value becomes equal to the compare value but only if b1 and b2 of BFM 4 are ON Once an output is set it remains ON until it is reset by b9 or b10 of BFM 4 If b3 of BFM 4 is ON however one of the outputs is reset when the other is set 6 Counter current value BFM 21 20 The current value of the counter can be read by the PLC It will not be the correct value during high speed operations because of the communication delay The current value of the counter can be forcibly changed by writing a 32 bit value into the appropriate BFMs from the PLC 7 Maximum count value BFM 23 22 These store the maximum and minimum value reached by the counter If the power is turned off the stored data is cleared 8 Comparison status BFM 26 BFM 26 When 0 OFF When 1 ON BFM 26 When 0 OFF When 1 ON b0 Set value lt current Set value gt current b3 Set value lt current Set value gt current value value value value Set value current Set value current Set value current Set value current YEDI value value YS b4 value value b2 Set value gt current Set value lt current b5 Set value gt current Set value lt current value va
4. Extension cable and connector DISABLE terminal M3 0 12 screws UP LED DIS DISABLE LED DN Down LED PRESET LED oALED YH LED B LED 4 YS LED 7 POWER LED DIN rail clip oA B terminal M3 0 12 screws D Attachment groove for 35 1 38 wide DIN rail PRESET terminal M3 0 12 screws lt Using the solderless termination gt cote Te Use crimp terminals of the dimensions specified in the left figure or less Secure the terminals using a tightening torque of 0 5 to 0 8 Ne m fot chee 5 to 8 kg cm 024 nenes mms Wire only to the module terminals discussed in this manual or less Leave all others vacant 1 phase input 2 phase input Item 1 input 2 inputs 1 edge count 2 edge count 4 edge count Phase A Phase B A24 B24 24V DC 10 7mA or less A12 B12 12V DC 10 7mA or less Signal level A5 B5 3 5V to 5 5V DC 10 5mA or less 9 PRESET DISABLE XP24 XD24 10 8V to 26 4V DC 15mA or less XP5 XD5 _ 5V DC 10 8mA or less Selected by terminal connection Input signal MAX frequency 50 kHz 25 kHz 12 5kHz t1 Rise fall time is 3ms or less t lt t t2 ON OFF pulse duration 10us or more t2 e b3 Phase difference between phase A and Pulse shape 3 phase B is 3 5ms or more eJ PRESET Z phase input 100us or more DISABLE count prohibit input 100ms or more Format Automatic UP DOWN however when
5. o To K2 K2 K100 Ki DOWN 4 i In the above example K100 is written into BFMs 3 and 2 of special block No 2 as a 32 bit binary value BFM 3 0 BFM 2 100 Permitted values K2 to K65 536 When ring length K100 is specified the value of the counter changes as shown above Note Write counter data with D TO Count data is always handled as a pair from two 16 bit values in this special function block 16 bit 2 s complement value stored in the registers of the PLC cannot be used When you are writing a positive value between K32 768 and K65 535 the data should be treated as a 32 bit value even when a 16 bit ring counter is used When transferring counter data to from this special function block always use the 32 bit forms of the FROM TO instructions D FROM D TO 3 BFM 4 Command 1 When b0 is set to ON and the DISABLE input BFM 4 When 0 OFF When 1 ON terminal to OFF the counter is permitted to bO Count prohibit Count permit Start counting input pulses 2 Unless b1 is set to ON YH hardware b1 YH output prohibit YH output permit compared output does not turn ON b2 YS output prohibit YS output permit 3 Unless b2 is set to ON YS software YHNS ind F M i compared output does not turn ON BOs bean Mean reret 4 When b3 ON YS output is reset if YH output is
6. Manual revision C Date JULY 2000 afa MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUTI TOKYO 100 8310 HIMEJI WORKS 840 CHIYODA CHO HIMEuI JAPAN TELEX J24532 CABLE MELCO TOKYO Effective JUL 2000 Specifications are subject to change without notice anvancrn enn sra evene MITSUBISHI ELECTRIC aa MITSUBISHI PROGRAMMABLE CONTROLLERS MELSEC F FX2n 1HC SPECIAL FUNCTION BLOCK USER S GUIDE J 992D65401C This manual contains text diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N 1HC special function block and should be read and understood before attempting to install or use the unit Further information can be found in the FX PROGRAMMING MANUAL and FX2N SERIES HARDWARE MANUAL 1 INTRODUCTION The hardware high speed counter block is a 2 phase 50 kHz high speed counter It is a special function block for the FX2N FX2Nc series PLC The FX2n 1HC counts at a higher speed than the built in high speed counter of the PLC 2 phase 30 kHz 1 phase 60 kHz and performs comparisons and outputs directly e Various counter modes such as 1 phase or 2 phase 16 bit or 32 bit modes can be selected using commands from the PLC Allow the FX2nN 1HC unit to run only after setting these mode parameters The source of your input signal should be a 1 or 2 phase encoder A 5V 12V or 24V power source can be used An initial va
7. command 3 SPECIFICATIONS Count modes 2 phase input phase difference pulse 1 phase 2 input add sub 1 phase 1 inp ut 32bits 16 bits The counter mode is selected form the 1odge count Ne KI PLC As shown below values between KO 2 edge count K2 K3 and K11 are written to buffer memory BFM 4 edge count K4 K5 0 form the PLC When a value is written to BFM 0 the contents of BFM 1 to BFM 31 tract pulse K6 K7 are reset to default values When setting Hardware this value use a TOP pulsed instruction UP DOWN K8 K9 use M8002 initial pulse to drive the TO instruction Software K10 K411 A continuous command is not allowed UP DOWN 3 1 Environmental specifications Item Specification Environmental specifications excluding following Same as those for the FX2N main unit Dielectric withstand voltage 500V AC 1min between all terminals and ground 3 2 Performance specifications 55 2 17 55 2 17 5 4 0 16 l J P d fo Pra Qe DOWN O 4 Pars I a To ke g POWER 7 5 ge a g 7 QL 718 3 8 as FXenrIHC 7 z 9 DIS Z 3 PRE O 3 z lt e y 4 yi yO gt 14 0 16 D Mounting hole 2 4 5 0 18 YH YS terminal M3 0 12 screws
8. kg cm 24nenes ms Wire only to the module terminals discussed in this manual or less Leave all others vacant 2 WIRING PNP output encoders PNP output encoders L 3 3k FX2N 1HC ialdi A24 Phase A Fout Shielding Wire Moe ON source ONR K YH sink Bode awaa pe a Phase B OUT Bi 2 j i B 12 to cad inputtable Phase Z OUT XP24 one yS Ay XP 5 15 T Ae COMPO YK a wat 4 1 2 to 24V YS Hc inputtaable 24v H COM ae j Cono wn Y e eo 1 A is an external load connected with the out put 2 Connect the grounded terminal at the PLC side as required 24V oV Extension OV 24V cable li A Class 3 PLC External power source grounding H Power supply for out put DC5V 12V 24V lt 1002 load drive DC5 to 24V If using on NPN output encoder please take care to match the polarity of the terminals of the encoder to those of the FX2N 1HC Line driver output encoders Line driver output encoders FXan 1 HC Shielding Wire LA WAAAY a AS rg 2600000 GLa LB B5 cary OOOO OM
9. turn ON if you use PRESET or the TO instruction to set the counter value equal to the comparison BFM 4 BFM 4 value It will turn ON only when a match occurs by the counting of b9 b10 b9 b10 input pulses L The YS comparison operation takes about 300us and if a match Co cidence output Coincidence output occurs the output goes ON Output occurs when the current value becomes equal to the compare value but only if b1 and b2 of BFM 4 are ON Once an output is set it remains ON until it is reset by b9 or b10 of BFM 4 If b3 of BFM 4 is ON however one of the outputs is reset when the other is set 6 Counter current value BFM 21 20 The current value of the counter can be read by the PLC It will not be the correct value during high speed operations because of the communication delay The current value of the counter can be forcibly changed by writing a 32 bit value into the appropriate BFMs from the PLC 7 Maximum count value BFM 23 22 These store the maximum and minimum value reached by the counter If the power is turned off the stored data is cleared 8 Comparison status BFM 26 BFM 26 When 0 OFF When 1 ON BFM 26 When 0 OFF When 1 ON b0 Set value lt current Set value gt current b3 Set value lt current Set value gt current value value value value Set value current Set value current Set value current Set value current YEDI value value YS b4 value value b2 Set
10. 31 are reserved 1 BFM 0 Counter mode KO to K11 BFM 1 DOWN UP command Count modes 32bits 16 bits 1 edge count KO K1 The counter mode is selected form the 2 phase input PLC As shown below values between KO phase difference pulse 2 edge count K2 K3 and K11 are written to buffer memory BFM 4 edge count K4 K5 0 form the PLC When a value is written to BFM 0 the contents of BFM 1 to BFM 31 1 phase 2 input add subtract pulse K6 K7 are reset to default values When setting Hardware this value use a TOP pulsed instruction UP DOWN K8 K use M8002 initial pulse to drive the TO 1 phase 1 input instruction Software K10 K11 A continuous command is not allowed UP DOWN a 32 bit counter modes A 32 bit binary counter which executes UP DOWN counting will change PO pariah from the lower limit to the upper limit or the upper limit to the lower limit when overflow occurs Both the upper and lower limits are fixed values the 0 upper limit is 2 147 483 647 and the lower limit is 2 147 483 648 b 16 bit counter modes Lower limit A 16 bit binary counter handles only positive values from 0 to 65 535 2 147 483 648 Changes to zero from the upper limit or to the upper limit from zero when overflow occurs the upper limit is de
11. V H COM ae es COMD LAS e eo 1 A is an external load connected with the out put 2 Connect the grounded terminal at the PLC side as required 24V ov 2 Extension 0 24V Ji I L cabe r Class 3 PLC External power source grounding H Power supply for out put DC5V 12V 24V lt 1002 load drive DC5 to 24V Line driver output encoders Line driver output encoders Shielding Wire LA RANN V Eo D 0000000 CE j l LB y4 ny FXen AS B5 HC If using on NPN output encoder please take care to match the polarity of the terminals of the encoder to those of the FX2N 1HC 3 3 Buffer memories BFM BFM number Contents 0 Counter mode KO to K11 Default KO 1 DOWN UP command 1 phase 1 input mode Default KO 3 2 Ring length Upper Lower Default K65 536 Write 4 Command Default KO 11 10 Preset data Upper Lower Default KO 13 12 YH compare value Upper Lower Default K32 767 15 14 YS compare value Upper Lower Default K32 767 21 20 Counter current value Upper Lower Default KO Write Read 23 22 Maximum count value Upper Lower Default KO 25 24 Minimum count value Upper Lower Default KO 26 Compare results 27 Terminal status 29 Error status 30 Model identification code K4010 5 9 16 19 28 31 are reserved 1 BFM 0 Counter mode KO to K11 BFM 1 DOWN UP
12. anvanern enn sra evene MITSUBISHI ELECTRIC aa MITSUBISHI PROGRAMMABLE CONTROLLERS MELSEC F FX2N 1HC SPECIAL FUNCTION BLOCK USER S GUIDE J 992D65401C This manual contains text diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N 1HC special function block and should be read and understood before attempting to install or use the unit Further information can be found in the FX PROGRAMMING MANUAL and FX2n SERIES HARDWARE MANUAL 1 INTRODUCTION The hardware high speed counter block is a 2 phase 50 kHz high speed counter It is a special function block for the FX2N FX2Nc series PLC The FX2n 1HC counts at a higher speed than the built in high speed counter of the PLC 2 phase 30 kHz 1 phase 60 kHz and performs comparisons and outputs directly e Various counter modes such as 1 phase or 2 phase 16 bit or 32 bit modes can be selected using commands from the PLC Allow the FX2n 1HC unit to run only after setting these mode parameters The source of your input signal should be a 1 or 2 phase encoder A 5V 12V or 24V power source can be used An initial value setting command input PRESET and a count prohibit command input DIS ABLE are also available The FX2n 1HC has two outputs When the counter value coincides with an output compare value the appropriate output is set ON The output transistors are individually isolated to allow either sink or sour
13. ce connection methods Data transfer between the FX2N 1HC and the FX2n PLC is by buffer memory exchange There are 32 buffer memories each of 16 bits in the FX2N 1HC The FX2n 1HC occupies 8 points of I O on the FX2n FX2Nc expansion bus The 8 points can be allo cated from either inputs or outputs 1 1 External dimensions Mass weight Approx 0 3 kg 0 66 Ibs Dimensions mm inches Accessories Self adhesive labels special block number identification 55 2 17 55 2 17 a 40 16 8 r fo sh Qe DOWN O 4 fara IS To Fe i POWER F F o i g q oO n amp o 53 Ae FXan IHC 7 3 9 DIS 2 3 PRE o 3 EAE amp 2 lore ye a e 40 16 D Mounting hole 2 4 5 0 18 YH YS terminal M3 0 12 screws Extension cable and connector Q DISABLE terminal M3 0 12 screws UPLED DIS DISABLE LED DN Down LED Q PRESET LED oALED YH LED BLED YS LED _ POWER LED DIN rail clip oA B terminal M3 0 12 screws D Attachment groove for 35 1 38 wide DIN rail PRESET terminal M3 0 12 screws lt Using the solderless termination gt 6 2mm e Use crimp terminals of the dimensions specified in the left figure 0 24 rata uE i or less Secure the terminals using a tightening torque of 0 5 to 0 8 Nem FOR M3 s 0 12 inches 5 to 8
14. ed from the PLC and is switched OFF by a reset command from the PLC Comparison Type YH Direct output processed by hardware YS Software processed output with worst delay time of 300us Therefore when the input frequency is 50 kHz there is a worst case delay of 15 input pulses Mi transistor output for yi output pj YH transistor output for YH output i Output knd YS transistor output for YS output i K H ya signal YS transistor output for YS output NPN i ve Output capacity 5V to 24V DC 0 5A 1 O occupation 8 points taken from the FX2N expansion bus can be either inputs or outputs Power from base 5V DC 90mA Internal power supply from main unit or powered extension unit 3 3 Buffer memories BFM BFM number Contents 0 Counter mode KO to K11 Default KO 1 DOWN UP command 1 phase 1 input mode Default KO 3 2 Ring length Upper Lower Default K65 536 Write 4 Command Default KO 11 10 Preset data Upper Lower Default KO 13 12 YH compare value Upper Lower Default K32 767 15 14 YS compare value Upper Lower Default K32 767 21 20 Counter current value Upper Lower Default KO Write Read 23 22 Maximum count value Upper Lower Default KO 25 24 Minimum count value Upper Lower Default KO 26 Compare results Pead 27 Terminal status 29 Error status 30 Model identification code K4010 5 9 16 19 28
15. er 10 BFM 29 Error status Error status in the FX2N 1HC can be checked by reading the contents of bO to b7 of BFM 29 to auxiliary relays of the PLC BFM 29 Error status bO Set when any of b1 to b7 is ON b1 Set when the value of the ring length is written incorrectly other than K2 to K65 536 b2 Set when the preset value is written incorrectly b3 Set when the compare value is written incorrectly Ale ae E oe io b4 Set when the current value is written in correctly b5 Set when the counter overflows the upper limit When the upper or lower limit is b6 Set when the counter overflows the lower limit exceeded on a 32 bit counter b7 Set when the FROM TO command is used incorrectly b8 Set when the counter mode BFM 0 is written incorrectly When outside of KO to K11 b9 Set when the BFM number is written incorrectly When outside of KO to K31 b10 b15 Undefined 5 BFM 13 12 Comparison value for YH output BFM 15 14 Comparison value for YS output After comparing the current value of the counter with the value 7 a written in BFM 13 and 12 BFM 15 and 14 the hardware and D K software comparator in the FX2N 1HC outputs the comparison amp o result O Current value 6 Current value YH YS output will not turn ON if you use PRESET or the TO instruction to set the counter value equal to the comparison BFM
16. hase B Phase B input OFF ON while phase A input ON Count up by 1 Phase B input ON OFF while phase A input ON Count down by 1 DOWN COUNT Phase A input Phase B input 2 BFM 3 2 Ring length Stores the data that specifies the length of the P yas 16 bit counter default K65 536 98 9 0 1 X 002 o To K2 K2 K100 Ki DOWN 4 i In the above example K100 is written into BFMs 3 and 2 of special block No 2 as a 32 bit binary value BFM 3 0 BFM 2 100 Permitted values K2 to K65 536 When ring length K100 is specified the value of the counter changes as shown above Note Write counter data with D TO Count data is always handled as a pair from two 16 bit values in this special function block 16 bit 2 s complement value stored in the registers of the PLC cannot be used When you are writing a positive value between K32 768 and K65 535 the data should be treated as a 32 bit value even when a 16 bit ring counter is used When transferring counter data to from this special function block always use the 32 bit forms of the FROM TO instructions D FROM D TO 3 BFM 4 Command 1 When bO is set to ON and the DISABLE input BFM 4 When 0 OFF When 1 ON terminal to OFF the counter is permitted to start counting input pulses bO Count prohibit Count permit 2 Unless b1 is set
17. ing length can be specified when a 16 bit E counter is specified ART aS a K e 3 UP DOWN direction should be specified for 1 phase L 4 1 input software determined UP DOWN counter M8002 FrN J 4 K1000 gt BFM 13 12 z B Oe KRAN 127 10008 lt K1 Set the compare value for YH output ra F 5 K900 BFM 15 14 AD OBE TEE BO Mel J Set the compare value for YS output not necessary if only YH output is used X010 m Cmo gt Count allowed M8000 e Cm to CDA allowed 6 Note that counting only occurs if count prohibit is Mutual reset OFF Also outputs will not be set from the counting x011 process at all if the relevant output prohibit are set in Preset allowed the command register Please reset the error flags Cua ge TAR gt and YH YS output before you start The mutual reset and preset initialization commands can be used as x02 T pis ms Err required T or flag reset X013 gt 1 PLS M19 and M20 YH YS output reset BP ie a eas aa 7 M25 to M10 gt BFM 4 b15 to b0 command RUN monitor K 8 BFM 21 20 Reads the current value to the data BD FROM Kaa S03 D2 KI registers D3 and D2 5 DIAGNOSTICS 5 1 Preliminary checks 1 Check that the I O wiring and extension cable of the FX2N 1HC are properly connected 2 5V 90mA power is supplied from the main or extension units for the FX2N 1HC Check that there is no power overload from this and other extension blocks The counter works correctly only
18. it counter modes A 16 bit binary counter handles only positive values from 0 to 65 535 Changes to zero from the upper limit or to the upper limit from zero when overflow occurs the upper limit is determined by BFMs 3 and 2 c 1 phase 1 input counter K8 to K11 Hardware UP DOWN K8 K9 Phase A PhaseB AJAJAJAJAJAJA A OFF ON ON Current UF SS value OFF UP DOWN is determined by input phase A DOWN d 1 phase 2 input counter K6 K7 Phase A input ON ore 4 4 4 4 4 Phase ON B input ON OFF Phase A input 1 at OFF ON Phase B input 1 at OFF ON OFF 12333210 e 2 phase counter KO to K5 e 1 edge count counter KO K1 Phase A 1 Phase B Lower limit 2 147 483 648 AAT Ring length BFM 3 2 Software UP DOWN K10 K11 BFM 1 KO K1 ON UP DOWN is PhaseB FIA A ALATA A determined by OFF the contents of DOWN BFM 1 KO K1 Ss Current UP vaue C If both phase A and phase B inputs are received simultaneously the counter value does not change up by 1 N Phase B input OFF ON while phase A input ON Count 2 Phase B input ON OFF while phase A input ON Count down by 1 4 edge count counter K4 K5 UP CO UNT J 2 edge count counter K2 K3 Phase A 1 1 P
19. lp you to troubleshoot the unit oA oB Goes on off as oA oB input turn ON OFF It can be checked by rotating the encoder slowly UP DN Lights up to indicate whether the counter is going up UP or down DN PRESET and DIS The appropriate LED lights up when the PRESET terminal or the DISABLE terminal is ON YH YS The appropriate LED lights up when YH YS output is turned on You can check the error status by reading the content of BFM 29 to the PLC Error contents are shown in section 3 3 10 6 SYSTEM BLOCK DIAGRAM Counter mode BFM 0 To Tebi Error status Reset O gt Ring upper limit value By BFM 29 BFM 4b8 BFM 3 2 counter DOWN UP command for YH output BFM 1 TO Comparisor data T phase BFM 13 12 BFM 4 b1 1 input lp N counter Matched b11 S gt YH B Count aul _ BEM 4 b9 OA ount pulse R BFM 4 DOWN UP b3 for YS output i oe DISABLE TO isi Conter Comparision data Count start 16 32 bit BFM 15 14 BFM 4 b2 BEM 4 bO phass Lae 2 phase Matched b12 U Lys Saee x BFM 4 b10 R OZ PRESET AH E Initiali Pie zation Current value I BFM 4 b4 A D register Sampling cycle To BFM
20. lue setting command input PRESET and a count prohibit command input DIS ABLE are also available The FX2n 1HC has two outputs When the counter value coincides with an output compare value the appropriate output is set ON The output transistors are individually isolated to allow either sink or source connection methods Data transfer between the FX2N 1HC and the FX2n PLC is by buffer memory exchange There are 32 buffer memories each of 16 bits in the FX2N 1HC The FX2n 1HC occupies 8 points of I O on the FX2n FX2Nc expansion bus The 8 points can be allo cated from either inputs or outputs 1 1 External dimensions Mass weight Approx 0 3 kg 0 66 Ibs Dimensions mm inches Accessories Self adhesive labels special block number identification 2 WIRING PNP output encoders PNP output encoders L 3 3k FX2N 1HC saldi A24 Phase A oUt Shielding Wire Aide rs source r otk YHs sink Bods oom veel CO Phase B OUT Bie T B A 12 to ad inputtable Phase z OUT XP24 ott z VS ot comp 00k y K awt a a J210 24v YS a inputtaabl 24
21. lue value value BFM 26 is for reading only Write commands from the programmable controller are ignored 9 Terminal status BFM 27 BFM 26 When 0 OFF When 1 ON BFM 26 When 0 OFF When 1 ON bO PRESET input is OFF PRESET input is ON b2 YH output is OFF YH output is ON b1 DISABLE input is OFF DISABLE input is ON b3 YS output is OFF YS output is ON b4 b15 Undefined There error flags can be reset by b8 of BFM 4 11 Model identification code number BFM 30 The identification number for a Special Function Block is read by using the FROM command The identification number for the FX2N 1HC unit is K4010 By reading this identification number the user may create built in checking routines to check whether the physical position of the FX2N 1HC matches to that of the software 4 EXAMPLE PROGRAM Please use the following program as a guide whenever you use the FX2N 1HC unit Other instructions to read the current value of the counter status etc can be added as required M8002 F 9 k ko ki Kk 1 K11 is written into BFM 0 of special function block Initial E 4 No 2 The counter input is 16 bit 1 phase Please use pulse a pulse command for this initialization ENR J 2 K1234 BFM 3 2 special function block No 2 DP K2 K2 k1234 K1 The r
22. n outside of KO to K11 b9 Set when the BFM number is written incorrectly When outside of KO to K31 b10 b15 Undefined There error flags can be reset by b8 of BFM 4 11 Model identification code number BFM 30 The identification number for a Special Function Block is read by using the FROM command The identification number for the FX2N 1HC unit is K4010 By reading this identification number the user may create built in checking routines to check whether the physical position of the FX2N 1HC matches to that of the software 4 EXAMPLE PROGRAM Please use the following program as a guide whenever you use the FX2N 1HC unit Other instructions to read the current value of the counter status etc can be added as required Meroe le 7 1 K11 is written into BFM 0 of special function block 7 To K2 K K11 K1 Initial amp 9 9 a No 2 The counter input is 16 bit 1 phase Please use pulse a pulse command for this initialization T J 2 K1234 BFM 3 2 special function block No 2 4 B K2 K2 K234 KI The ring length can be specified when a 16 bit 7 counter is specified X014 z ae va ee To K2 Ki K1 K1 3 UP DOWN direction should be specified for 1 phase L 4 1 input software determined UP DOWN counter M8002 7 4 K1000 gt BFM 13 12 Bit Be ae Wey KIO Set the compare value for YH output 5 K900 BFM 15 14 Set the compare value for YS output not necessary if only YH
23. on 1 phase 1 input mode UP DOWN is determined by a PLC command or an input terminal Range When 32 bit is specified 2 147 483 648 to 2 147 483 647 9 When 16 bit is specified 0 to 65 535 upper limit can be user specified Counting Each output is set when the present value of the counter matches with the specification compare value which is transferred from the PLC and is switched OFF by a reset command from the PLC Comparison Type YH Direct output processed by hardware YS Software processed output with worst delay time of 300us Therefore when the input frequency is 50 kHz there is a worst case delay of 15 input pulses YH transistor output for YH output pots YH Typ soi YH transistor output for YH output i YS Output ouiputs YS transistor output for YS output i J signal YS transistor output for YS output NPN Output capacity 5V to 24V DC 0 5A O occupation 8 points taken from the FX2N expansion bus can be either inputs or outputs Power from base 5V DC 90mA Internal power supply from main unit or powered extension unit a 32 bit counter modes A 32 bit binary counter which executes UP DOWN counting will change 2 147 483 647 Upper limit from the lower limit to the upper limit or the upper limit to the lower limit when overflow occurs Both the upper and lower limits are fixed values the 0 upper limit is 2 147 483 647 and the lower limit is 2 147 483 648 b 16 b
24. output DISABLE TO isi Count start Pone sel toe H 16 32 bit i BFM 4 b2 BFM 4 bO pnas NE e gt 2 phase Matched b2 XS Se 3 BFM 4 b10 R Z PRESET HAH J Initiali zation Current value M BFM 4 b4 DN register li l BFM 21 20 Sampling Gyas 300ms TO Preset da BFM 11 o TO O Compare results Direct initialization BFM 26 4 Comparison is made at the next sampling point Maximum value Tenninalletatus after an input count BFM 23 22 BEM 27 Model code Minimum value BFM 30 BFM 25 24 Guidelines for the safety of the user and protection of the FX2N 1HC special function block This manual has been written to be used by trained and competent personnel This is defined by the European directives for machinery low voltage and EMC If in doubt at any stage during the installation of the FX2n 1HC always consult a professional electrical engineer who is qualified and trained to the local and national standards If in doubt about the operation or use of the FX2n 1HC please consult the nearest Mitsubishi Electric distributor Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment All examples and diagrams shown in this manual are intended only as an aid to understanding
25. output is used Lf D TO K2 K14 K900 K1 X 010 Sh Cmo Y Count allowed m M8000 Cit to Cia ue allowed 6 Note that counting only occurs if count prohibit is utual reset OFF Also outputs will not be set from the counting x011 process at all if the relevant output prohibit are set in Preset allowed the command register Please reset the error flags Cia dee gt and YH YS output before you start The mutual reset and preset initialization commands can be used as x012 p required m PLS M18 Error flag reset X013 gt L PLS M19 and M20 YH YS output reset M8000 To K2 K4 K4M10 KI 7 M25 to M10 BFM 4 b15 to b0 command RUN monitor r 8 BFM 21 20 gt Reads the current value to the data o FROM ee e002 I registers D3 and D2 5 DIAGNOSTICS 5 1 Preliminary checks Check that the I O wiring and extension cable of the FX2nN 1HC are properly connected 5V 90mA power is supplied from the main or extension units for the FX2N 1HC Check that there is no power overload from this and other extension blocks The counter works correctly only when data such as the counter mode set with a pulse command the TO command the compare value etc are appropriately specified Remember to initialize the count BFM 4 b0 preset BFM 4 b4 and output BFM 4 b2 b1 prohibits Reset the YH YS outputs before you start 5 2 Error checking The following LEDs on the main panel of the FX2N 1HC may he
26. set and YH output is reset if YS output is b4 Preset prohibit Preset permit set When b3 OFF YH and YS output act b5 to b7 Undefined independently and do not reset each other k pene 5 When b4 OFF preset function by the b8 No action Error flag reset PRESET input terminal is disabled b9 No action YH output reset 6 When b8 is set to ON all error flags are reset re YS 7 When b9 is set to ON YH output is reset 510 o action output reset 8 When b10 is set to ON YS output is reset b11 No action YH output set 9 When b11 is set to ON YH output is set ON b12 No action YS output set 10 When b12 is set to ON YS output is set ON 4 BFM 11 10 Preset data Data to used as the initial value when the counter starts to count Data becomes valid when b4 of BFM 4 is set to ON and PRESET input terminal changes from OFF to ON The default value of the counter is zero You can change it by writing a value into BFM 11 and 10 or by using the command below The initial counter value can also be set by writing the data directly into BFM 21 and 20 current value of the counter 5 BFM 13 12 Comparison value for YH output BFM 15 14 Comparison value for YS output After comparing the current value of the counter with the value 7 a written in BFM 13 and 12 BFM 15 and 14 the hardware and D K software comparator in the FX2N 1HC outputs the comparison amp Sey result O Current value 6 Current value YH YS output will not
27. termined by BFMs 3 and 2 0 Ring length BFM 3 2 c 1 phase 1 input counter K8 to K11 Hardware UP DOWN K8 K9 Software UP DOWN K10 K11 PhaseA OFF ON BFm Ko K1 oN UP DOWN is ON UP DOWN is PhaseB 4 4 4141414 determined by Phase B A 4 A at A k A determined by OFF input phase A OFF the contents of ON OFF BFM 1 KO K1 Current UPz DOWN Current UPz sROWN EES value ee value CG MAA d 1 phase 2 input counter K6 K7 Phase ON Phase A input 1 A input o 4 DENGE at OFF ON If both phase A and phase B inputs are received EGE an Phase B input 1 simultaneously the counter value does not change BI input OFF 1233320 at OFF gt ON e 2 phase counter KO to K5 e 1 edge count cou nter KO K1 Phase A Phase B Phase B input ON while up by 1 phase A input ON Count OFF X Phase B input ON OFF while phase A input ON Count down by 1 e 4 edge count counter K4 K5 UP COUNT J 2 edge count counter K2 K3 Phase A Phase B up by 1 DOWN COUNT Phase A input Phase B input z Phase B input OFF ON while phase A input ON Count J Phase B input ON OFF while phase A input ON Count down by 1 2 BFM 3 2 Ring length Stores the data that specifies the length of the P yas 16 bit counter default K65 536 98 9 0 1 002
28. the text not to guarantee operation Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples Owing to the very great variety in possible application of this equipment you must satisfy yourself as to its suitability for your specific application Manual number JY992D65401 Manual revision C Date JULY 2000 afa MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUTI TOKYO 100 8310 HIMEJI WORKS 840 CHIYODA CHO HIMEuI JAPAN TELEX J24532 CABLE MELCO TOKYO Effective JUL 2000 Specifications are subject to change without notice JY992D65401C
29. to ON YH hardware b1 YH output prohibit compared output does not turn ON YH output permit b2 YS output prohibit Unless b2 is set to ON YS software YS output permit 3 compared output does not turn ON 4 When b3 ON YS output is reset if YH output is set and YH output is reset if YS output is YH YS independent action Mutual reset b3 action b4 Preset prohibit Preset permit set When b3 OFF YH and YS output act independently and do not reset each other pene De e peetned 5 When b4 OFF preset function by the b8 No action Error flag reset PRESET input terminal is disabled b9 No action YH output reset 6 When b8 is set to ON all error flags are reset re YS 7 When b9 is set to ON YH output is reset b10 Pacion output reset 8 When b10 is set to ON YS output is reset b11 No action YH output set 9 When b11 is set to ON YH output is set ON b12 No action YS output set 10 When b12 is set to ON YS output is set ON 4 BFM 11 10 Preset data Data to used as the initial value when the counter starts to count Data becomes valid when b4 of BFM 4 is set to ON and PRESET input terminal changes from OFF to ON The default value of the counter is zero You can change it by writing a value into BFM 11 and 10 or by using the command below The initial counter value can also be set by writing the data directly into BFM 21 and 20 current value of the count
30. value gt current Set value lt current b5 Set value gt current Set value lt current value value value value BFM 26 is for reading only Write commands from the programmable controller are ignored 9 Terminal status BFM 27 BFM 26 When 0 OFF When 1 ON BFM 26 When 0 OFF When 1 ON bO PRESET input is OFF PRESET input is ON b2 YH output is OFF YH output is ON b1 DISABLE input is OFF DISABLE input is ON b3 YS output is OFF YS output is ON b4 b15 Undefined 10 BFM 29 Error status Error status in the FX2N 1HC can be checked by reading the contents of bO to b7 of BFM 29 to auxiliary relays of the PLC BFM 29 Error status bO Set when any of b1 to b7 is ON b1 Set when the value of the ring length is written incorrectly other than K2 to K65 536 b2 Set when the preset value is written incorrectly When value gt ring length in b3 Set when the compare value is written incorrectly 16 bit counter mode b4 Set when the current value is written in correctly b5 Set when the counter overflows the upper limit When the upper or lower limit is b6 Set when the counter overflows the lower limit exceeded on a 32 bit counter b7 Set when the FROM TO command is used incorrectly b8 Set when the counter mode BFM 0 is written incorrectly Whe
31. when data such as the counter mode set with a pulse command the TO command the compare value etc are appropriately specified Remember to initialize the count BFM 4 b0 preset BFM 4 b4 and output BFM 4 b2 b1 prohibits Reset the YH YS outputs before you start 5 2 Error checking The following LEDs on the main panel of the FX2n 1HC may help you to troubleshoot the unit 0A oB Goes on off as oA 6B input turn ON OFF It can be checked by rotating the encoder slowly UP DN Lights up to indicate whether the counter is going up UP or down DN PRESET and DIS The appropriate LED lights up when the PRESET terminal or the DISABLE terminal is ON YH YS The appropriate LED lights up when YH YS output is turned on You can check the error status by reading the content of BFM 29 to the PLC Error contents are shown in section 3 3 10 6 SYSTEM BLOCK DIAGRAM To Counter mode BFM 0 gt Tebi Error status Reset O gt Ring upper limit value bit A EEMS BFM 4 b8 BFM 3 2 counter DOWN UP command for YH output BFM 1 TO Comparisor data T phase BFM 13 12 BFM 4 b1 1 input po PEM counter Matched b11 5 Mnl B N _ BFM 4 b9 GA ount pulse R BFM 4 DOWN UP b3 for YS
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