FX2N-4AD-PT SPECIAL FUNCTION BLOCK USER'S GUIDE
Contents
1. lene aconuelded CHL AUNTZA cable should be used for the analog input cable This 200000 E Toa analog input cable should be wired separately from UAE o 5 KG power lines or any other lines which may induce noise FG i The three wire method improves the accuracy of the moo l sensors by compensating voltage drops i a Shielded Cb i i If there is electrical noise connect the FG frame feu 5v ground terminal with the ground terminal In CH1 eh aa eS FG AG there is no FG terminal Use FG terminal of other DC24V 10 50mA oe ep Ba tev channels a 2 Tlconverter AC jay Connect the ground terminal on the FX2N 4AD PT unit with the grounded terminal on the main unit Use igure rc a Sa i grounding on the main unit if grounding is possible 100 0or less m i Either an external or the 24V built in supply in the PLC may be used For additional data regarding EMC considerations please see section 10 4 2 Using crimp terminations less than Use crimp terminals as indicated on the left 6 2mm basf 10 3 e The tightening torque must be 0 5 and 0 8 N m Do not tighten Use M3 0 12 terminal screws exceeding the specified torque Failure to do so may 7 cause equipment failures or malfunctions Sram 0 oo u aca s e Wire only to the module terminals discussed in this manual Leave all others vacant 5 INSTALLAT ION NOTES AND USAG2. 8 EXAMPLE PROGRAM 10 EMC CONSIDERATIONS In the program shown below the FX2N 4AD PT block occupies the position of special block number 2 that is the third closest block to the PLC The averaging amount is four The averaged values in degrees C of input channels CH1 to CH4 are stored respectively in data registers DO to D3 M8002 i FNC78 K30 D10 K1 H Block No 2 BFM 30 gt D10 Initiali L FROM Identification code zation FNC10 When K2040 D10 M1 ON K2040 D10 MO Pulse LMP A Wien kiri aton code is 2040 M1 ON This initial step checks that the special function block placed at position 2 is actually an FX2n 4AD PT i e its unit identification number is 2040 BFM 30 This step is optional but it provides a software check that the system has been configured correctly M8000 _ FNC78 Block No 2 BFM 29 K4M10 a L FROM K2 eS KANO Ki H Transfer the error status to M25 to M10 RUN When error is found M10 ON monitor M10 Y010 Kao Represents b0 BFM 29 2 Buffer Memory BFM 29 Error status Per This step provides optional monitoring of the FX2n 4AD PT Error Buffer Memory i i 29 If there is an Error on the FX2N 4AD PT bit bO o 29 will be set on Bit devices of BFM 29 ON OFF lf there is an E he FXan 4AD PT bit bO of BFM ill b This can be read by this program step and outp
3. must be terminated at the FG terminals as shown in section 4 1 Because of the delicate nature of all analog signals failure to take good EMC precautions could lead to EMC noise induced errors up to 10 of actual values This is an absolute worst case figure users who do take good precautions can expect operation within normal tolerances EMC considerations should include selection of good quality cables good routing of those cables away from potential noise sources Additionally it is recommended that signal averaging is used as this will reduce the effects of random noise spikes Attention e This product is designed for use in industrial applications Note e Manufactured by Mitsubishi Electric Corporation 2 7 3 Marunouchi Chiyoda ku Tokyo 100 8310 Japan e Manufactured at Mitsubishi Electric Corporation Himeji Works 840 Chiyoda machi Himeji Hyogo 670 8677 Japan e Authorized Representative in the European Community Mitsubishi Electric Europe B V Gothaer Str 8 40880 Ratingen Germany This manual confers no industrial property rights or any rights of any other kind nor does it confer any patent licenses Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual Manual number JY992D65601 Manual revision F Date November 2010 afa MITSUBISHI ELECTRIC CORPORATION
4. gt Temp input F Miscellaneous Item Specification Isolation DC DC converter Photo coupler isolation between analog and digital circuits isolation of power from the main unit No isolation between analog channels Number of occupied I O points The block occupies 8 I O points can be either inputs or outputs 6 ALLOCATION OF BUFFER MEMORIES BFM 6 1 Buffer memories BFM CONTENTS 0 Characteristic change 4 HA CH1 to CH4 Averaged temperature reading to be averaged 1 to 256 Default 8 5 8 CH1 to CH4 Averaged temperature in 0 1 C units 9 12 CH1 to CH4 Present temperature in 0 1 C units 13 16 CH1 to CH4 Averaged temperature in 0 1 F units 17 20 CH1 to CH4 Present temperature in 0 1 F units 21 27 Reserved 28 Digital range error latch 29 Error status 30 Identification code K2040 31 Reserved 1 The FX2n 4AD PT communicates with the PLC via buffer memories BFMs buffer memories 21 to 27 and 31 are reserved All BFM data can be read by the PLC using the FROM instruction PLC can read write the BFMs marked with using FROM TO instructions BFM 0 value KO or K1 decides the Pt100 characteristic to be used KO JIS C 1604 1997 K1 JIS C 1604 1981 The number of samples to be averaged are assigned in BFMs 1 to 4 Only the range 1 to
5. or uses the product associated with this manual Notes on the Symbols Used in this Manual At various times throughout this manual certain symbols will be used to highlight points of information which are intended to ensure the users personal safety and protect the integrity of equipment 1 Indicates that the identified danger WILL cause physical and property damage damage A 2 Indicates that the identified danger could POSSIBLY cause physical and property e 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 e 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 the actual use of the product based on these illustrative examples e Owing to the very great variety in possible applications for this equipment you must satisfy yourself as to its suitability for your specific application 1 INTRODUCTION e The FX2n 4AD PT analog block amplifies the input from four platinum temperature sensors Pt 100 3 wire 100 Q and converts the data into 12 bit reading s stored in the main unit Both Centigrade C and Fahrenheit F can be read Reading resolution is 0 2 C to 0 3 C 0 36 F to 0 54 F e The FX2N 4AD PT can connected to the FXoN FX1N FX3G F X2N FX3U F X2NC FX3uc series Pr
6. terminal of other Dezavston soma Bee capes sv _ Channels 79 a e J convener AS aey Connect the ground terminal on the FX2N 4AD PT unit with the grounded terminal on the main unit Use ee i grounding on the main unit if grounding is possible D grounding PLC FX2n 4AD PT i 100 Q or less DS given EAE A EE 4 2 Using crimp terminations Sion mes Use M3 0 Ertha if 3 12 Either an external or the 24V built in supply in the PLC may be used For additional data regarding EMC considerations please see section 10 Use crimp terminals as indicated on the left The tightening torque must be 0 5 and 0 8 N m Do not tighten terminal screws exceeding the specified torque Failure to do so may cause equipment failures or malfunctions Wire only to the module terminals discussed in this manual Leave all others vacant 5 INSTALLATION NOTES AND USAGE 5 1 General specification Item Specification General specifications Same as those for the main unit Dielectric withstand voltage 500V AC 1min between all terminals and ground 5 2 Power supply specification Item Specification Analog circuits 24V DC 10 50mMA Digital circuits 5V DC 30mA internal power supply from the main unit 6 000 11 120 Conversion Digital Digital or output output Characteristics 10
7. 0 C 148 F e e 1 000 600 C 1 480 41 11 2 F gt Temp input C gt Temp input F Miscellaneous Item Specification Isolation DC DC converter isolation of power from the main unit Photo coupler isolation between analog and digital circuits No isolation between analog channels Number of occupied I O points The block occupies 8 I O points can be either inputs or outputs 6 ALLOCATION OF BUFFER MEMORIES BFM 6 1 Buffer memories BFM CONTENTS The FX2n 4AD PT communicates 0 Characteristic change with the PLC via buffer memories BFMs buffer memories 21 to 27 CH1 to CH4 Averaged temperature reading to be and 31 are reserved 1 4 averaged 10 296 Default 8 All BFM data can be read by the 5 8 CH1 to CH4 Averaged temperature in 0 1 C units PLC using the FROM instruction 9 12 CH1 to CH4 Present temperature in 0 1 C units PLC can read write the BFMs 13 16 CH1 to CH4 Averaged temperature in 0 1 F units marked with using FROM ATO instructions 17 20 CH1 to CH4 Present temperature in 0 1 F units 21 27 Reserved 28 Digital range error latch 29 Error status 30 Identification code K2040 31 Reserved 1 3 4 BFM 0 value KO or K1 decides the Pt100 characteristic to be used KO JIS C 1604 1997 K1 JIS C 1604 1981 The number of samp
8. 4096 is valid Values outside this range are ignored The default value of 8 is used A number of recently converted readings are averaged to give a smoother read out The averaged data is stored in BFMs 5 to 8 and 13 to 16 BFMs 9 to 12 and 17 to 20 store the current value of the input data This value is in units of 0 1 C or 0 1 F but the resolution is only 0 2 C to 0 3 C or 0 36 F to 0 54 F 6 2 Status Information 1 Buffer Memory BFM 28 Digital range error latch BFM 29 b10 digital range error is used to judge whether the measured temperature is within the unit s range or not BFM 28 latches the error status of each channel b15 or b8 b7 b6 b5 b4 b3 b2 b1 b0 High Low High Low High Low High Low CH4 CH3 CH2 CH1 Not used Low Latches ON when the temperature measurement data drops below the lowest temperature measurement limit High Turns ON when the temperature measurement data rises above the highest temperature measurement limit When an error occurs the temperature data before the error is latched If the measured value returns to within valid limits the temperature data returns to normal operation Note The error remains latched in BFM 28 An error can be cleared by writing KO to BFM 28 using the TO instruction or turning off the power 2 Buffer Memory BFM 29 Error status Bit devices of BFM 29 ON OFF When either b2 or b3
9. 80 to 11120 Digital output EA EER 12 bit conversion 11 data bits 1 sign bit 16 bit binary with sign Minimum resolvable 0 2 C to 0 3 C 0 36 F to 0 54 F temp Overall accuracy 1 full scale compensated range See section 7 0 for special EMC considerations Conversion speed 60ms 15 ms for 4 channels Analog Inputs continued The FX2n 4AD PT unit can be connected to the FXon FX1N FX3G FX2N FX3uU F X2Nc FX3uc PLCs Other special units of blocks that use FROM TO instructions such as analog input blocks analog output blocks and high speed counter blocks can be directly connected to the main unit of the PLC or to the right side of other extension blocks or units For the connection with PLCs refer to the respective PLC manual 4 WIRING 4 1 Wiring Pt100 D 2 E The cable of the Pt 100 sensor or a twisted shielded O e aa a cable should be used for the analog input cable This 2000000 L LOAN analog input cable should be wired separately from E Ee i KG i power lines or any other lines which may induce noise 5 The three wire method improves the accuracy of the a i i sensors by compensating voltage drops A seeded Cee i If there is electrical noise connect the FG frame fsa k SV ground terminal with the ground terminal In CH1 eee Danae ti FG AG i there is no FG terminal Use FG
10. Changes for the Better a MITSUBISHI PROGRAMMABLE CONTROLLERS MELSEG F FX2N 4AD PT SPECIAL FUNCTION BLOCK USER S GUIDE JY992D65601F This manual contains text diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N 4AD PT special function block and should be read and understood before attempting to install or use the unit Further information can be found in the main unit manual and programming manual Guidelines for the Safety of the User and Protection of the FX2N 4AD PT special function block This manual should be used by trained and competent personnel The definition of such a person or persons is as follows a Any engineer using the product associated with this manual should be of a competent nature trained and qualified to the local and national standards These engineers should be fully aware of all aspects of safety with regards to automated equipment b Any commissioning or service engineer must be of a competent nature trained and qualified to the local and national standards c All operators of the completed equipment should be trained to use this product in a safe and coordinated manner in compliance to established safety practices Note The term completed equipment refers to a third party constructed device which contains or uses the product associated with this manual Notes on the Symbols Used in this Manual At various times throughout this manua
11. E 5 1 General specification Item Specification General specifications Same as those for the main unit Dielectric withstand voltage 500V AC 1min between all terminals and ground 5 2 Power supply specification Item Specification Analog circuits 24V DC 10 50mMA Digital circuits 5V DC 30mA internal power supply from the main unit 5 3 Performance specification Analog Inputs Centigrade Fahrenheit Item Both C and F are available by reading the appropriate buffer memory BFM Analog input signal Platinum Temperature Pt 100 sensors 100 Q 3 wire 4 channel CH1 CH2 CH3 CH4 DIN 43760 JIS C 1604 1997 JIS C 1604 1981 Current to sensor 1 mA sensor 100 Q Pt 100 Compensated range 100 C to 600 C 148 F to 1112 F Digital output 1000 to 6000 1480 to 11120 12 bit conversion 11 data bits 1 sign bit 16 bit binary with sign Minimum resolvable temp 0 2 C to 0 3 C 0 36 F to 0 54 F Overall accuracy 1 full scale compensated range See section 7 0 for special EMC considerations Conversion speed 60ms 15 ms for 4 channels Analog Inputs continued Conversion Characteristics 6 000 11 120 Digital Digital output output 100 C 148 F e o v 4 1 000 600 C 4 1 480 1 112 F gt Temp input C
12. FM 5 to 8 for input The identification code or ID number for this Special Block is read from buffer memory BFM 30 using channels CH1 to CH4 of the FX2n 4AD PT If direct temperature readings are the FROM instruction This number for the FX2N 4AD PT unit is K2040 required BEM 910412 shouldibe road instead x The PLC can use this facility in its program to identify the special block before commencing data transfer f d to th ial block From K ee 29 K4 TaNster MOM ANA tone Special DOCK special FX2N 4AD PT result No of block No 2 BFM number destination words read 7 SYSTEM BLOCK DIAGRAM 9 DIAGNOSTICS i i LED 5V Power Gain and offset i PLC i a Supply values are poet Buffer stored in the i commans TO Memory EEPROM i information i RAM Analog Inpu i write and i Photocoupler i data status i CPU i read FROM onverted 4 YJ ai CH1 i data R K Si i AID J CH2 i System os CH3 i ROM converter i Control gt as CH4 i signals Fi l i Multiplexer 24V DC i 15V JAD j Power Source i OLED DC DC 5V t 5V Cyclic switching i i converter i wy 24V FXen 4AD PT Analog Block LE 9 1 Preliminary checks V Check whether the input output wiring and or extension cables are properly connected on the FX2n 4AD PT analog sp
13. HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN HIMEJI WORKS 840 CHIYODA CHO HIMEJI JAPAN Changes for the Better a MITSUBISHI PROGRAMMABLE CONTROLLERS MELSEG F FX2N 4AD PT SPECIAL FUNCTION BLOCK USER S GUIDE JY992D65601F This manual contains text diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N 4AD PT special function block and should be read and understood before attempting to install or use the unit Further information can be found in the main unit manual and programming manual Guidelines for the Safety of the User and Protection of the FX2N 4AD PT special function block This manual should be used by trained and competent personnel The definition of such a person or persons is as follows a Any engineer using the product associated with this manual should be of a competent nature trained and qualified to the local and national standards These engineers should be fully aware of all aspects of safety with regards to automated equipment b Any commissioning or service engineer must be of a competent nature trained and qualified to the local and national standards c All operators of the completed equipment should be trained to use this product in a safe and coordinated manner in compliance to established safety practices Note The term completed equipment refers to a third party constructed device which contains
14. ROM Converted 4 V CHi i data as i AD J CH2 i System as CH3 i converter i OM Contro T se CH4 signals M i Multiplexer H 24V DC i 15V JAD j Power Source y 1 OLED DC DC 5V t 5V Cyclic switching i i converter i wy 24V 1 ai i i i 8 EXAMPLE PROGRAM In the program shown below the FX2N 4AD PT block occupies the position of special block number 2 that is the third closest block to the PLC The averaging amount is four The averaged values in degrees C of input channels CH1 to CH4 are stored respectively in data registers DO to D3 n FNC78 k2 K30 D10 K1 Block No 2 BFM 30 D10 Initiali L FROM a Identification code zation FNC10 When K2040 D10 M1 ON K2040 D10 MO Pulse cmp i e When identification code is K2040 M1 ON This initial step checks that the special function block placed at position 2 is actually an FX2n 4AD PT i e its unit identification number is 2040 BFM 30 This step is optional but it provides a software check that the system has been configured correctly M8000 ENC78 Block No 2 BFM 29 K4M10 1 L FROM Rem KEI KAM TO KI H Transfer the error status to M25 to M10 RUN When error is found M10 ON monitor M10 H Y010 Represents b0 BFM 29 This step provides optional monitoring of the FX2n 4AD PT Error Buffer Memory 29 If there is an Error on the FX2n 4AD PT bit bO of BFM 29 will be set o
15. d with a form of seild or screening as protection against EMC noise If some form of cable protection is used the Shield must be terminated at the FG as shown in section 4 1 Because of the delicate nature of all analog signals failure to take good EMC precautions could lead to EMC noise induced errors up to 10 of actual values This is an absolute worst case figure users who do take good precautions can expect operation within normal tolerances EMC considerations should include selection of good quality cables good routing of those cables away from potential noise sources Additionally it is recommended that signal averaging is used as this will reduce the effects of random noise spikes Attention e This product is designed for use in industrial applications Note e Manufactured by Mitsubishi Electric Corporation 2 7 3 Marunouchi Chiyoda ku Tokyo 100 8310 Japan Mitsubishi Electric Corporation Himeji Works 840 Chiyoda machi Himeji Hyogo 670 8677 Japan e Authorized Representative in the European Community Mitsubishi Electric Europe B V Gothaer Str 8 40880 Ratingen Germany e Manufactured at This manual confers no industrial property rights or any rights of any other kind nor does it confer any patent licenses Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents
16. ecial function block Check that the PLC system configuration limits have not been exceeded i e the number of special function blocks and the total system I O are within the specified range Ensure that the correct operating range has been selected for the application Check that there is no power overload on either the 5V or 24V power sources remember the loading on main unit or a powered extension unit varies according to the number of extension blocks or special function blocks connected Make sure that the main unit has been switched to RUN 9 2 Error checking If the FX2N 4AD PT special function block does not seem to operate normally check the following items Check the status of the POWER LED Lit The extension cable is properly connected Otherwise Check the connection of the extension cable Check the external wiring Check the status of the 24V LED top right corner of the FX2N 4AD PT Lit FX2N 4AD PT is ON 24V DC power source is ON Otherwise Possible 24V DC power failure if ON possible FX2N 4AD PT failure Check the status of the A D LED top right corner of the FX2N 4AD PT Lit A D conversion is proceeding normally Otherwise Check buffer memory 29 error status If any bits bO b2 b3 are ON then this is why the A D LED is OFF Electromagnetic compatibility or EMC must be considered before using the FX2N 4AD PT Mitsubishi recommend that the PT 100 sensors used should be fitte
17. he specified range Ensure that the correct operating range has been selected for the application IV Check that there is no power overload on either the 5V or 24V power sources remember the loading on main unit or a powered extension unit varies according to the number of extension blocks or special function blocks connected V Make sure that the main unit has been switched to RUN 9 2 Error checking If the FX2N 4AD PT special function block does not seem to operate normally check the following items e Check the status of the POWER LED Lit The extension cable is properly connected Otherwise Check the connection of the extension cable e Check the external wiring e Check the status of the 24V LED top right corner of the FX2N 4AD PT Lit FX2N 4AD PT is ON 24V DC power source is ON Otherwise Possible 24V DC power failure if ON possible FX2N 4AD PT failure e Check the status of the A D LED top right corner of the FX2N 4AD PT Lit A D conversion is proceeding normally Otherwise Check buffer memory 29 error status If any bits bO b2 b3 are ON then this is why the A D LED is OFF 10 EMC CONSIDERATIONS Electromagnetic compatibility or EMC must be considered before using the FX2N 4AD PT Mitsubishi recommend that the PT 100 sensors used should be fitted with a form of seild or screening as protection against EMC noise If some form of cable protection is used the Shield
18. is ON bO Error A D conversion is stopped for No error the error channel b1 Reserved Reserved Reserved b2 Power source 24V DC power supply failure Power supply normal b3 Hardware error ND converter ph pine Hardware Normal hardware failure b4 to b9 Reserved Reserved Reserved Digital output analog input b10 Digital range error value is outside the specified Digital output value is normal range Selected number of averaged Bo ed Averaging is normal b11 Averaging error results is outside the available range see BFM 1 to 4 between 1110 4096 b12 to b15 Reserved Reserved Reserved 3 Buffer Memory BFM 30 Identification Code The identification code or ID number for this Special Block is read from buffer memory BFM 30 using the FROM instruction This number for the FX2n 4AD PT unit is K2040 The PLC can use this facility in its program to identify the special block before commencing data transfer from and to the special block 7 SYSTEM BLOCK DIAGRAM LED 5V Power Gain and offset i PLC i ou Supply A __ values are a Buffer mn stored in the Gomiand TO Memory EEPROM i in ormation RAM Analog Inpu write and i Photocoupler i data status i CPU read aaa F
19. l certain symbols will be used to highlight points of information which are intended to ensure the users personal safety and protect the integrity of equipment 1 Indicates that the identified danger WILL cause physical and property damage damage A 2 Indicates that the identified danger could POSSIBLY cause physical and property e 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 e 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 the actual use of the product based on these illustrative examples e Owing to the very great variety in possible applications for this equipment you must satisfy yourself as to its suitability for your specific application 1 INTRODUCTION e The FX2n 4AD PT analog block amplifies the input from four platinum temperature sensors Pt 100 3 wire 100 Q and converts the data into 12 bit reading s stored in the main unit Both Centigrade C and Fahrenheit F can be read Reading resolution is 0 2 C to 0 3 C 0 36 F to 0 54 F e The FX2N 4AD PT can connected to the FXon FX1N FX3G FX2N FX3U FX2NC FX3uc series Programmable Controllers PLC e All data transfers and parameter setups are adjusted via software control of the FX2N 4AD PT by
20. les to be averaged are assigned in BFMs 1 to 4 Only the range 1 to 4096 is valid Values outside this range are ignored The default value of 8 is used A number of recently converted readings are averaged to give a smoother read out The averaged data is stored in BFMs 5 to 8 and 13 to 16 BFMs 9 to 12 and 17 to 20 store the current value of the input data This value is in units of 0 1 C or 0 1 F but the resolution is only 0 2 C to 0 3 C or 0 36 F to 0 54 F 6 2 Status Information 1 Buffer Memory BFM 28 Digital range error latch BFM 29 b10 digital range error is used to judge whether the measured temperature is within the unit s range or not BFM 28 latches the error status of each channel b15 or b8 b7 b6 b5 b4 b3 b2 b1 bo High High High High Low Low Low Low Not used CH4 CH3 CH2 CH1 Low Latches ON when the temperature measurement data drops below the lowest temperature measurement limit High Turns ON when the temperature measurement data rises above the highest temperature measurement limit When an error occurs the temperature data before the error is latched If the measured value returns to within valid limits the temperature data returns to normal operation Note The error remains latched in BFM 28 An error can be cleared by writing KO to BFM 28 using the TO instruction or turning off the power
21. n This can be read by this program step and output as a bit device in the PLC Y010 in his example Additional Error devices can be output in a similar manner i e b10 BFM 29 see below M8000 FNC78 prom K2 K29 KaMio KI H M10 Y010 Represents b0 BFM 29 M20 o1 11 X Represents b10 BFM 29 MI FNC79 ko pki k ka K4 3 BFM 1 to 4 or L TO al Number of samples is changed to four on CH1 to CH4 M8000 FNC78 7 BFM 5 to 8 DO to D3 L FROM KeS DO Kt B Transfer the averaged temperature value in C to the data registers This step is the actual reading of the FX2n 4AD PT input channels It is essentially the only program step which is needed The TO instruction in this example sets the input channels CH1 to CH4 to take the average reading of four samples The FROM instruction reads the average temperatures BFM 5 to 8 for input channels CH1 to CH4 of the FX2n 4AD PT If direct temperature readings are required BFM 9 to 12 should be read instead ex i 9 DIAGNOSTICS 9 1 Preliminary checks FNC78 FROM K2 K9 K4 special FX2N 4AD PT result No of Do 7 block No 2 BFM number destination words read Check whether the input output wiring and or extension cables are properly connected on the FX2n 4AD PT analog special function block ll Check that the PLC system configuration limits have not been exceeded i e the number of special function blocks and the total system I O are within t
22. noted in this manual Manual number JY992D65601 Manual revision F November 2010 Date sfa MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN HIMEJI WORKS 840 CHIYODA CHO HIMEJI JAPAN terminals
23. ogrammable Controllers PLC e All data transfers and parameter setups are adjusted via software control of the FX2N 4AD PT by use of the TO FROM applied instructions in the PLC e The FX2N 4AD PT occupies 8 I O points on the PLC expansion bus The 8 I O points can be allocated from either inputs or outputs The FX2N 4AD PT draws 30mA from the 5V rail of the main unit or powered extension unit 2 EXTERNAL DIMENSIONS 87 Weight Approx 0 3 kg 0 66 Ibs Dimensions mm inches 3 43 55 2 17 55 2 17 Mounting holes 4 5 0 18 dia gt 4 0 16 O DIN rail mounting slot 35 1 38 P lt tz HO 1 POWERO a H _ ZH 93 1 94 F 24V LED PHO 4193A 9 0 35 e gt Ld OVe Nex4 a 4 AID JO LED Extension cable and connector 4 0 16 Terminal screws M3 0 12 3 CONNECTION WITH PLC 5 3 Performance specification Analog Inputs Centigrade Fahrenheit Item Both C and F are available by reading the appropriate buffer memory BFM Analog input signal Platinum Temperature Pt 100 sensors 100 Q 3 wire 4 channel CH1 CH2 CH3 CH4 DIN 43760 JIS C 1604 1997 JIS C 1604 1981 Current to sensor 1 mA sensor 100 Q Pt 100 Compensated range 100 C to 600 C 148 F to 1112 F 1000 to 6000 14
24. use of the TO FROM applied instructions in the PLC e The FX2N 4AD PT occupies 8 I O points on the PLC expansion bus The 8 I O points can be allocated from either inputs or outputs The FX2N 4AD PT draws 30mA from the 5V rail of the main unit or powered extension unit 2 EXTERNAL DIMENSIONS Weight Approx 0 3 kg 0 66 Ibs Dimensions mm inches 87 3 43 55 2 17 55 2 17 gt Mounting holes 4 5 0 18 dia 4 0 16 DIN rail mounting slot 35 1 38 F lt Te HO 1 POWERO 90 3 54 9447 94 T T 24V LED PHO 1 94 1 gt 9 0 35 e Lld QYp N X4 aA AID O LED Extension cable 4 0 16 and connector Terminal screws M3 0 12 3 CONNECTION WITH PLC The FX2n 4AD PT u nit can be connected to the FXon FX1N FX3G FX2N FX3u F X2NC FX3uc PLCs Other special units of blocks that use FROM TO instructions such as analog input blocks analog output blocks and high speed counter blocks can be directly connected to the main unit of the PLC or to the right side of other extension blocks or units For the connection with PLCs refer to the respective PLC manual 4 WIRING 4 1 Wiring The cable of the Pt 100 sensor or a twisted shielded
25. ut as a bit device in the PLC Y010 in When either b2 or b3 is ON this example Additional Error devices can be output in a similar manner i e b10 BFM b0 Error A D conversion is stopped for No error 29 see below the error channel M8000 FNC78 b1 Reserved Reserved Reserved Ey irRom C KeS KAMIO KI H M10 b2 Power source 24V DC power supply failure Power supply normal Yo10 Represents b0 BFM 29 M20 b3 Hardware error m converter or other Hardware Normal Yo11 Represents b10 BFM 29 hardware failure b4 to b9 Reserved Reserved Reserved n Digital output analog input a Mi ENo79 ee ua K4 gt BFM 1 to 4 b10 Digital range error value is outside the specified Digital output value is normal bp L TO J Number of samples is changed to four on CH1 to CH4 range M8000 Selected number of averaged Averadina tenons TFNC78 ko ks po Ks 1 BFM 5 to 8 DO to D3 f b11 Averaging error results is outside the available ging l eM 4 Transfer the averaged temperature value in C to the range see BFM 1 to 4 between 1 to 4096 data registers b12 to b15 Reserved Reserved Reserved This step is the actual reading of the FX2n 4AD PT input channels It is essentially 5 the only program step which is needed The TO instruction in this example sets i ifinati the input channels CH1 to CH4 to take the average reading of four samples 8 Bufer Memory BE Mando Identification Code The FROM instruction reads the average temperatures B
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