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FX2N-8AD Analog input block

Buffer Memory (BFM) 8

8-36

8.2.21

BFM #101 to BFM #108: Peak value (minimum value)
BFM #111 to BFM #118: Peak value (maximum value)

When you use the peak value hold function (BFM #22 b3), one of the convenient functions, the
minimum value of the data (BFM #10 to BFM #17) of each channel is written to BFM #101 to
BFM #108, and the maximum value is written to BFM #111 to BFM #118.
When you use the data addition function (BFM #22 b0) together, the minimum/maximum
measured value added by the addition data is written.

Initial value

When the peak hold function is not used: K0
When the peak hold function is used: Digital value when the power is turned on

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Summary of Contents for FX2N-8AD

Page 1: ...USER S MANUAL FX2N 8AD Analog input block Industrial automation Elincom Group European Union www elinco eu Russia www elinc ru ...

Page 2: ...X1N FX2N FX2NC FX3U FX3UC Series Hardware Manual for connecting main unit and the FX Series Programming Manual ΙΙ If in doubt at any stage of the installation of FX2N 8AD Analog input block always consult a professional electrical engineer who is qualified and trained to the local and national standards that applies to the installation site If in doubt about the operation or use of FX2N 8AD Analog...

Page 3: ... 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 FX2N 8AD Analog input block Manual number JY992D86001 Manual revision F Date September 2008 ...

Page 4: ...FX2N 8AD Analog input block ii ...

Page 5: ... to automated equipment b Any commissioning or service engineer must be of a competent nature trained and qualified to the local and national standards required to fulfill that job These engineers should also be trained in the use and maintenance of the completed product This includes being completely familiar with all associated documentation for said product All maintenance should be carried out...

Page 6: ... the symbols used will now be listed with a brief description of its meaning Hardware Warnings 1 Indicates that the identified danger WILL cause physical and property damage 2 Indicates that the identified danger could POSSIBLY cause physical and property damage 3 Indicates a point of further interest or further explanation Software Warnings 4 Indicates special care must be taken when using this e...

Page 7: ...uipment 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 Please contact a Mitsubishi Electric distributor for more information concerning applications in life critical situations or high reliability ...

Page 8: ...FX2N 8AD Analog input block vi ...

Page 9: ... 13 8 2 2 BFM 2 to BFM 9 Number of times of averaging 8 15 8 2 3 BFM 10 to BFM 17 Channel data 8 17 8 2 4 BMF 19 Disables setting change 8 17 8 2 5 BFM 20 Initializes functions 8 17 8 2 6 BFM 21 Writes I O characteristics 8 18 8 2 7 BFM 22 Sets convenient functions 8 19 8 2 8 BFM 24 Specifies high speed conversion channel 8 20 8 2 9 BFM 26 Upper lower limit value error status 8 21 8 2 10 BFM 27 A ...

Page 10: ... 33 8 2 20 BFM 99 Clears upper lower limit value error and sudden change detection error 8 35 8 2 21 BFM 101 to BFM 108 Peak value minimum value BFM 111 to BFM 118 Peak value maximum value 8 36 8 2 22 BFM 109 Peak value reset flag minimum value BFM 119 Peak value reset flag maximum value 8 37 8 2 23 BFM 198 Data history sampling time 8 38 8 2 24 BFM 199 Resets or stops data history 8 40 8 2 25 BFM...

Page 11: ...d At this time a different analog input can be selected for each channel 2 The voltage input can be selected within the range from 10 to 10 V The current input can be selected within the range from 20 to 20 mA and from 4 to 20 mA The input characteristics can be adjusted for each channel except while the analog value direct display is used The thermocouple input can be selected among the K type J ...

Page 12: ...X3U FX3UC 1 Series PLC Up to four FX2N 8AD units can be connected to the FX2NC Series PLC For connection to the FX2NC Series PLC FX2NC CNV IF is required For connection to the FX3UC Series PLC FX3UC 1PS 5V or FX2NC CNV IF is required Data transfer with the PLC is performed to buffer memories of the FX2N 8AD by FROM TO instructions 1 Up to seven FX2N 8AD units can be connected to the FX3UC 32MT LT ...

Page 13: ...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 FX2N 8AD 98 3 86 installation dimension Dimensions mm inch Mass Weight 0 3 kg 0 66 lbs FX2N 8AD Analog input block ...

Page 14: ...FX2N 8AD Analog input block External Dimensions 2 2 2 MEMO ...

Page 15: ...upplied to 24 and 24 terminals of FX2N 8AD V V1 I1 COM1 V3 I3 24 24 V2 I2 V4 I4 COM4 COM3 COM2 I6 COM5 V7 I7 V6 V5 I5 V8 I8 COM8 COM7 COM6 V8 COM7 COM6 I6 I7 V6 V5 COM4 I1 V1 V7 V4 I2 V2 24V POWER 24 24 I5 COM8 COM5 COM1 COM3 I3 V3 I4 I8 COM2 FX2N 8AD Installation hole screw M4 Status indicator LED M3 5 terminal screw Hook for DIN rail Extension cable Extension connector Terminal arrangement Figur...

Page 16: ...FX2N 8AD Analog input block Part Name 3 3 2 MEMO ...

Page 17: ... extension block or special block of the FX0N FX1N FX2N FX2NC FX3U FX3UC Series PLC The FX2N 8AD can be installed with a DIN rail DIN46277 of 35 mm in width or directly installed with screws M4 For the details refer to the handy manual supplied together with the PLC main unit FX2N 8AD Analog input block ...

Page 18: ...k then remove the FX2N 8AD Figure 4 2 Direct installation The FX2N 8AD can be installed directly by inserting screws M4 into installation holes For the pitch and the position of installation holes refer to the figure on the left V8 COM7 COM6 I6 I7 V6 V5 COM4 I1 V1 V7 V4 I2 V2 24V POWER 24 24 I5 COM8 COM5 COM1 COM3 I3 V3 I4 I8 COM2 FX2N 8AD Hook for DIN rail Installation screw M4 67 2 64 98 3 86 Di...

Page 19: ...IF is required Please check power supply availability to determine the number of FX2N 8AD blocks that can be connected to the FX0N FX1N FX2N FX2NC FX3U FX3UC PLCs A unit No 0 to 7 is automatically assigned to each special unit or special block connected to a PLC main unit from the one nearest to the main unit 1 The data is read from and written to the FX2N 8AD by FROM TO instructions given by the ...

Page 20: ...FX2N 8AD Analog input block Connection to PLC 5 5 2 MEMO ...

Page 21: ...e for use with these screws should be fitted to the cable for wiring Figure 6 1 Crimp Terminals 3 The terminal tightening torque is 0 5 to 0 8 Nxm Tighten securely to avoid malfunction 4 Cut off all phases of power source before installation or performing wiring work in order to avoid electric shock or damage of product 5 Replace the provided terminal cover before supplying power and operating the...

Page 22: ...t Voltage input 250Ω 5 8kΩ 250Ω 5 8kΩ 5 8kΩ 250Ω 200kΩ CH3 CH2 CH1 AG 5 DC24V Class D grounding 4 Connected to terminal of PLC main unit DC DC converter AG 15V 15V FX2N 8AD 6 COM2 200kΩ 200kΩ Note Use solderless terminals of the following size M3 5 Tighten them securely at the tightening torque of 0 5 to 0 8 N m 6 8 mm 0 27 or less For M3 5 0 14 6 8 mm 0 27 or less For M3 5 0 14 ...

Page 23: ... D grounding 100 Ω or less is performed 5 The 24 V DC service power supply of the PLC is also available 6 Use an isolated type thermocouple When using the thermocouple input use compensating conductors suitable to the thermocouple Never perform wiring to terminals For the terminal arrangement refer to Section 3 Compensating Lead Wire To a wire resistance 10 Ω Compensating Lead Wire gives approx 0 ...

Page 24: ...FX2N 8AD Analog input block Wiring 6 6 4 MEMO ...

Page 25: ... Z directions 80 min in each direction For product installed with DIN rail Frequency 10 to 57 Hz half amplitude 0 035 mm 57 to 150 Hz acceleration 4 9 m s2 Impact resistance 147 m s2 for 11 ms 3 times in each of X Y and Z directions with half sine pulses Noise resistance By noise simulator of noise voltage 1 000 Vp p noise width 1 µs and frequency 30 to 100 Hz Withstand voltage 500 V AC for 1 min ...

Page 26: ...hannel for voltage current input 1 ms x Number of used channels Channel for thermocouple input 40 ms x Number of used channels Number of used channels indicates number of all channels used for voltage input current input or thermocouple input Insulation method Photocoupler insulates analog input area from PLC DC DC converter insulates power supply from analog I O Channels are not insulated each ot...

Page 27: ...set 3 mA Resolution is constant However change is disabled while analog value direct display is used Maximum absolute input 30 mA Digital output Signed 16 bit binary Signed 16 bit binary Resolution 0 63 mV 20 V 1 32000 2 5mV 20 V 1 8000 2 50 µA 40 mA 1 16 000 during input of 20 to 20 mA 5 00 µA 40 mA 1 8 000 during input of 20 to 20 mA 2 00 µA 16 mA 1 8 000 during input of 4 to 20 mA 4 00 µA 16 mA...

Page 28: ...0 C 148 to 1112 F 100 to 350 C 148 to 662 F Digital output Signed 16 bit binary Signed 16 bit binary Signed 16 bit binary Resolution 0 1 C or 0 1 F 0 1 C or 0 1 F 0 1 C or 0 1 F Total accuracy Less than V1 10 Ambient temperature 0 to 55 C 1 Against full scale 100 C to 1200 C 148 F to 2192 F However 0 C to 1000 C 32 F to 1832 F of K type and 25 C to 600 C 77 F to 600 F of J type are 0 5 V1 10 or mo...

Page 29: ...ess the buffer memory of Reserved BFM 18 23 25 31 33 to 40 49 to 50 59 60 69 70 79 80 89 90 99 100 120 to 197 by the FROM TO instruction There is a possibility to cause abnormal operation of the FX2N 8AD if accessing these buffer memories FX2N 8AD Analog input block ...

Page 30: ...o each BFM Use FROM TO instructions to read and write the data between the BFM and the PLC When the power is turned on from off the initial value is written to each BFM When you would like to use different contents of the BFM create a program for the PLC so that the desired contents are written to the BFM every time the power of the PLC is turned on The contents stored in BFM 0 1 19 22 24 41 to 48...

Page 31: ...er of times of averaging of CH1 Setting range 1 to 4 095 times 1 6 Number of times of averaging of CH1 Setting range 1 to 4 095 times 1 7 Number of times of averaging of CH1 Setting range 1 to 4 095 times 1 8 Number of times of averaging of CH1 Setting range 1 to 4 095 times 1 9 Number of times of averaging of CH8 Setting range 1 to 4 095 times 1 10 CH1 data immediate data or average data 11 CH2 d...

Page 32: ... offset gain value is finished K0 22 Sets convenient functions data addition upper lower limit value detection sudden change detection and peak value hold K1 at shipment 23 Reserved K0 24 Specifies high speed conversion channel Setting range K0 to K8 K1 at shipment 25 Reserved K0 26 Upper lower limit value error status valid while BFM 22 b1 is ON K0 27 A D data sudden change detection status valid...

Page 33: ...r it completes it K0 Reserved 41 CH1 offset data mV or µA K0 at shipment 42 CH2 offset data mV or µA K0 at shipment 43 CH3 offset data mV or µA K0 at shipment 44 CH4 offset data mV or µA K0 at shipment 45 CH5 offset data mV or µA K0 at shipment 46 CH6 offset data mV or µA K0 at shipment 47 CH7 offset data mV or µA K0 at shipment 48 CH8 offset data mV or µA K0 at shipment Reserved 51 CH1 gain data ...

Page 34: ...BFM 22 b0 is ON K0 62 CH2 addition data Setting range 16 000 to 16 000 valid while BFM 22 b0 is ON K0 63 CH3 addition data Setting range 16 000 to 16 000 valid while BFM 22 b0 is ON K0 64 CH4 addition data Setting range 16 000 to 16 000 valid while BFM 22 b0 is ON K0 65 CH5 addition data Setting range 16 000 to 16 000 valid while BFM 22 b0 is ON K0 66 CH6 addition data Setting range 16 000 to 16 0...

Page 35: ...inside input range 74 CH4 lower limit value error set value valid while BFM 22 b1 is ON Minimum digital value inside input range 75 CH5 lower limit value error set value valid while BFM 22 b1 is ON Minimum digital value inside input range 76 CH6 lower limit value error set value valid while BFM 22 b1 is ON Minimum digital value inside input range 77 CH7 lower limit value error set value valid whil...

Page 36: ...ue valid while BFM 22 b1 is ON Maximumdigital value inside input range 86 CH6 upper limit value error set value valid while BFM 22 b1 is ON Maximumdigital value inside input range 87 CH7 upper limit value error set value valid while BFM 22 b1 is ON Maximumdigital value inside input range 88 CH8 upper limit value error set value valid while BFM 22 b1 is ON Maximumdigital value inside input range Re...

Page 37: ...set value Setting range 1 to 50 of full scale valid while BFM 22 b2 is ON 5 of full scale 98 CH8 sudden change detection set value Setting range 1 to 50 of full scale valid while BFM 22 b2 is ON 5 of full scale 99 Clearness of upper and lower limit value error and sudden change detection error K0 Reserved 101 CH1 peak value minimum value valid while BFM 22 b3 is ON Refer to 8 2 21 102 CH2 peak val...

Page 38: ...lue valid while BFM 22 b3 is ON 114 CH4 peak value maximum value valid while BFM 22 b3 is ON 115 CH5 peak value maximum value valid while BFM 22 b3 is ON 116 CH6 peak value maximum value valid while BFM 22 b3 is ON 117 CH7 peak value maximum value valid while BFM 22 b3 is ON 118 CH8 peak value maximum value valid while BFM 22 b3 is ON 119 Peak value maximum value reset flag K0 Reserved 198 Data hi...

Page 39: ...f times of averaging BFM 2 to 9 is set to 1 K0 201 CH1 data history 2nd value K0 202 CH1 data history 3rd value K0 599 CH1 data history 400th value K0 600 CH2 data history 1st value K0 601 CH2 data history 2nd value K0 602 CH2 data history 3rd value K0 999 CH2 data history 400th value K0 1000 CH3 data history 1st value K0 1001 CH3 data history 2nd value K0 1002 CH3 data history 3rd value K0 Table ...

Page 40: ...s valid only in channels for which number of times of averaging BFM 2 to 9 is set to 1 3397 CH8 data history 398th value K0 3398 CH8 data history 399th value K0 3399 CH8 data history 400th value K0 Table 8 1 BFM Lists BFM No Description Hold against power failure Initial value ...

Page 41: ...git for each channel 0 Voltage input mode 10 to 10 V resolution 0 63 mV 20 V x 1 32 000 1 Voltage input mode 10 to 10 V resolution 2 50 mV 20 V x 1 8 000 2 Voltage input mode analog value direct display 10 000 to 10 000 resolution 1 mV 3 Current input mode 4 to 20 mA resolution 2 00 µA 16 mA x 1 8 000 4 Current input mode 4 to 20 mA resolution 4 00 µA 16 mA x 1 4 000 5 Current input mode analog va...

Page 42: ...lution 0 1 F E Thermocouple input mode T type Farenheit display 148 to 662 F resolution 0 1 F F Input channel release unusable The input characteristics are automatically changed in accordance with the setting of BFM 0 and BFM 1 When the voltage input mode or the current input mode is selected the input characteristics can be changed However when the analog value direct display is selected the inp...

Page 43: ...er of times of averaging is 1 to 4 095 However when you set the number of times of averaging to 1 the immediate data current value is stored in BFM 10 to BFM 17 When you set the number of times of averaging to 0 or a smaller value 0 is written When you set the number of times of averaging to 4 096 or a larger value 4 096 is written In either case a number of times of averaging setting error BFM 29...

Page 44: ...te time is as follows Average data update time A D conversion time x Number of channels When the number of times of averaging BFM 2 to BFM 9 is set to 401 or more the average BFM 10 to BFM 17 is updated every time A D conversion is performed by as many as the set number of times of averaging The update time is as follows Average data update time A D conversion time x Number of channels x Number of...

Page 45: ...characteristics BFM 0 BFM 1 BFM 21 the convenient functions BFM 22 and the high speed conversion channel BFM 24 K1 Enables change selected at shipment from factory K2 Disables change 8 2 5 BFM 20 Initializes functions BFM 20 initializes all data stored in BFM 0 to BFM 3399 and sets the FX2N 8AD to the status at shipment from the factory By initialization the input characteristics are reset to the ...

Page 46: ...41 to BFM 48 and the gain data BFM 51 to BFM 58 of the assigned channel No are written to the built in memory EEPROM and become valid You can give the write command to two or more channels at a time When you input HFF all channels are written When write is completed BFM 21 returns automatically to K0 BFM21 b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Invali...

Page 47: ...ror set value BFM 81 to BFM 88 The addition data BFM 61 to BFM 68 is not added to the scale over data BFM 28 b1 Upper lower limit value detection function When the A D conversion data of each channel is outside the range from the lower limit value error set value BFM 71 to BFM 78 to the upper limit value error set value BFM 81 to BFM 88 the result is written to the upper lower limit value error st...

Page 48: ...ther channels to twice of the normal timing To select a channel write K1 for CH1 to K8 for CH8 to BFM 24 When you write K0 the high speed conversion function is not available When the thermocouple input mode is used in one or more channels the high speed conversion function is not available Example When BFM 24 is set to K1 Conversion channel 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Conversion timing of CH1 500...

Page 49: ... ON it remains ON until it is reset by BFM 99 or the power is turned off Even while an upper lower limit value error is detected the data BFM 10 to BFM 17 of each channel is continuously updated Table 8 2 Bit assignment in BFM 26 Bit No Channel No Description Bit No Channel No Description b0 CH1 Lower limit value error b8 CH5 Lower limit value error b1 Upper limit value error b9 Upper limit value ...

Page 50: ... direction turns ON Once a bit turns ON it remains ON until it is reset by BFM 99 or the power is turned off Even while a sudden change error is detected the data BFM 10 to BFM 17 of each channel is continuously updated Table 8 3 Bit assignment in BFM 27 Bit No Channel No Description Bit No Channel No Description b0 CH1 Sudden change error in direction b8 CH5 Sudden change error in direction b1 Su...

Page 51: ... 40 8mA or more Use the upper lower limit detection function to detect the scale over status in the current input mode Once a bit turns ON it remains ON until it is overwritten with the OFF status by the TO instruction given by the PLC main unit or the power is turned off Even while a scale over error is detected the data BFM 10 to BFM 17 of each channel is continuously updated Table 8 4 Range in ...

Page 52: ...er More than upper limit and disconnection detection b6 CH4 Scale over Less than lower limit b7 Scale over More than upper limit and disconnection detection b8 CH5 Scale over Less than lower limit b9 Scale over More than upper limit and disconnection detection b10 CH6 Scale over Less than lower limit b11 Scale over More than upper limit and disconnection detection b12 CH7 Scale over Less than lowe...

Page 53: ...lied Check wiring and supply voltage b3 Hardware error FX2N 8AD may have failed Contact Mitsubishi Electric System Service nearest to you b4 A D conversion value error A D conversion value is abnormal Using scale over data BFM 28 check channel in which error has occurred b5 Thermocouple being warmed up This bit is ON for 20 minutes after power is turned on b6 BFM read write disabled This bit is ON...

Page 54: ... 0 to F b10 Number of times of averaging setting error Number of times of averaging is incorrectly set Set it within range from 1 to 4 095 b11 b12 Sudden change detection set value error Sudden change detection set value is incorrect Set a correct value b13 Upper lower limit value error set value error Upper lower limit value error set value is incorrect Set a correct value b14 High speed conversi...

Page 55: ...tion K0 is automatically written in BFM 33 Write K1 in BFM 33 regularly when you continuously execute the disconnection detection At this time you should use the internal clock so that the interruption of the analog to digital conversion may increase when it does every operation execution It turns off POWER LED during the disconnection detection execution Blink when continuously executing it Progr...

Page 56: ...mode column indicates a value set in BFM 0 BFM 1 You can set the offset data and the gain data for each channel Write the set value in the unit of mV for voltage input or µA for current input You cannot change the input characteristics in the analog value direct display mode and the thermocouple input mode Even if you write a numeric value it is ignored Table 8 7 Standard digital value Input mode ...

Page 57: ... 20 to 20 mA Table 8 8 Initial offset gain value Input mode BFM 0 BFM 1 0 1 2 3 4 5 6 7 8 Initial offset value 0 0 0 4000 4000 4000 0 0 0 Initial gain value 5000 5000 5000 20000 20000 20000 20000 20000 20000 Table 8 9 Setting range Voltage input Current input Offset data 1000 to 9000 mV 2000 to 1700 µA Gain data Gain value Offset value 1 000 to 10 000 mV Gain value Offset value 3 000 to 30 000 µA ...

Page 58: ...M 108 BFM 111 to BFM 118 and the data history BFM 200 to BFM 999 of each channel become the measured value added by the addition data BFM 61 to BFM 68 When using the data addition function write the value added by the addition data BFM 61 to BFM 68 to the lower limit value error set value BFM 71 to BFM 78 and the upper limit value error set value BFM 81 to BFM 88 Setting range 16 000 to 16 000 ...

Page 59: ...0 BFM 1 The table below shows the setting range in each input mode Write the set value in a digital value Table 8 10 Setting range Input mode BFM 0 BFM 1 Setting range Initial value Lower limit Upper limit 0 Voltage input mode 10 to 10 V resolution 10 V x 1 16 000 16384 to 16383 16384 16383 1 Voltage input mode 10 to 10 V resolution 10 V x 1 4 000 4096 to 4095 4096 4095 2 Voltage input mode analog...

Page 60: ...0 A Thermocouple input mode J type Celsius display 1000 to 6000 1000 6000 B Thermocouple input mode T type Celsius display 1000 to 3500 1000 3500 C Thermocouple input mode K type Farenheit display 1480 to 21920 1480 21920 D Thermocouple input mode J type Farenheit display 1480 to 11120 1480 11120 E Thermocouple input mode T type Farenheit display 1480 to 6620 1480 6620 F Channel unusable Invalid 1...

Page 61: ...lue in a digital value Table 8 11 Setting range Input mode BFM 0 BFM 1 Setting range Initial value 0 Voltage input mode 10 to 10 V resolution 10 V x 1 16 000 1 to 16383 1600 1 Voltage input mode 10 to 10 V resolution 10 V x 1 4 000 1 to 4095 400 2 Voltage input mode analog value direct display 10 000 to 10 000 1 to 10000 1000 3 Current input mode 4 to 20 mA resolution 20 mA x 1 8 000 1 to 4095 400...

Page 62: ...de T type Celsius display 1 to 4500 450 C Thermocouple input mode K type Farenheit display 1 to 11700 1170 D Thermocouple input mode J type Farenheit display 1 to 6300 630 E Thermocouple input mode T type Farenheit display 1 to 4050 405 F Channel unusable Invalid 0 Table 8 11 Setting range Input mode BFM 0 BFM 1 Setting range Initial value ...

Page 63: ...igned to the lower three bits of BFM 99 When a bit is set to ON the flag of the corresponding error status BFM 26 BFM 27 is reset for all channels at a time After reset is finished each bit of BFM 99 returns automatically to OFF You can set two or more clear commands to ON at a time Table 8 12 Bit assignment in BFM 99 Bit No Description b0 Clears lower limit value error b1 Clears upper limit value...

Page 64: ...nctions the minimum value of the data BFM 10 to BFM 17 of each channel is written to BFM 101 to BFM 108 and the maximum value is written to BFM 111 to BFM 118 When you use the data addition function BFM 22 b0 together the minimum maximum measured value added by the addition data is written Initial value When the peak hold function is not used K0 When the peak hold function is used Digital value wh...

Page 65: ...ored in BFM 111 to BFM 118 The channel No to be reset is assigned to each bit of BFM 109 and BFM 119 When a bit is set to ON the peak value of the assigned channel is cleared You can set two or more bits to ON at a time Table 8 13 Bit assignment BFM 109 Bit No b15 to b8 b7 b6 b5 b4 b3 b2 b1 b0 Channel No BFM No Unusable CH8 108 CH7 107 CH6 106 CH5 105 CH4 104 CH3 103 CH2 102 CH1 101 BFM 119 Bit No...

Page 66: ...value is 0 500 µs x Number of effective channels When the set value is 1 or more Set value ms x Number of effective channels When thermocouple input is used for one or more channels Channel for voltage input or current input When the set value is 0 or 1 1 ms x Number of effective channels When the set value is 2 or more Set value ms x Number of effective channels Channel for thermocouple input Whe...

Page 67: ...s 1 ms x Number of effective channels When the set value is 2 or more Channel specified for high speed conversion Set value ms x Number of effective channels Other channels Set value ms x Number of effective channels x 2 Number of effective channels indicates the number of all channels for which the number of times of averaging BFM 2 to BFM 9 is set to 1 without regard to the input mode voltage in...

Page 68: ...the assigned channel is cleared You can set two or more bits to ON at a time When the clear operation is completed each bit returns automatically to OFF Data history stop function This function stops temporarily sampling of the data history in the unit of channel The channel No to be stopped temporarily is assigned to each of the upper eight bits of BFM 199 When a bit is set to ON sampling of the ...

Page 69: ...y in channels for which the number of times of averaging BFM 2 to 9 is set to 1 If much data history is read at a time to the PLC main unit by one FROM instruction a watch dog timer error occurs in the PLC main unit In such a case divide the required data history using many FROM instructions and insert the WDT instruction watch dog timer refresh instruction after each FROM instruction Table 8 16 A...

Page 70: ...FX2N 8AD Analog input block Buffer Memory BFM 8 8 42 MEMO ...

Page 71: ...andard I O characteristics in accordance with each input mode BFM 0 BFM 1 In the voltage input mode and the current input mode you can adjust the standard I O characteristics for each channel You cannot adjust the standard I O characteristics in the analog value direct output mode and the thermocouple input mode FX2N 8AD Analog input block ...

Page 72: ... 000 Input mode set in BFM 0 BFM 1 Input mode Analog input range Resolution In the analog value direct display mode and the thermocouple input mode Analog input range and Resolution are omitted Digital value 10 10 16 000 Approx 16 320 Approx 10 2 V Approx 10 2 V 16 000 Approx 16 320 Input voltage V Digital value 10 10 4 000 Approx 4 080 Approx 10 2 V Approx 10 2 V 4 000 Approx 4 080 Input voltage ...

Page 73: ...prox 10 200 Input voltage V Digital value Input current mA 0 4 20 8 000 2 Voltage input direct display 10 000 to 10 000 3 Current input 4 to 20 mA 16 mA x 1 8 000 Digital value Input current mA 0 4 20 4 000 Digital value Input current mA 0 4 20 20 000 4 000 4 Current input 4 to 20 mA 16 mA x 1 4 000 5 Current input direct display 4 000 to 20 000 ...

Page 74: ... value 20 20 4 000 4 000 Input current mA 0 6 Current input 20 to 20 mA 40 mA x 1 16 000 7 Current input 20 to 20 mA 40 mA x 1 8 000 Digital value 20 20 20 000 20 000 Input current mA 0 Digital value 0 12 000 1 000 Input temperature C 100 1 200 8 Current input direct display 20 000 to 20 000 9 Thermocouple input K type Celsius ...

Page 75: ...0 Digital value 0 3 500 1 000 Input temperature C 100 350 A Thermocouple input J type Celsius B Thermocouple input T type Celsius Digital value 0 21 920 1 480 Input temperature F 148 2 192 Digital value 0 11 120 1 480 Input temperature F 148 1 112 C Thermocouple input K type Farenheit D Thermocouple input J type Farenheit ...

Page 76: ...FX2N 8AD Analog input block Adjustment of I O Characteristics 9 9 6 Digital value 0 6 620 1 480 Input temperature F 148 662 E Thermocouple input T type Farenheit ...

Page 77: ...eristics Adjust the I O characteristics using the buffer memories in the FX2N 8AD At first write the input mode to BFM 0 and BFM 1 write the offset data to BFM 41 to BFM 48 then write the gain data to BFM 51 to BFM 58 After that update the offset data and the gain data of each channel using BFM 21 ...

Page 78: ...written by BFM 21 to one channel at a time or two or more channels at a time X000 K0 K0 H1600 K1 TO P K0 K1 HFFA1 K1 TO P K0 K41 K0 K2 TO P K0 K51 K1250 K2 TO P K0 K44 K0 K1 TO P K0 K54 K10000 K1 TO P K0 K21 H00FF K1 Operation start instruction Specifies the input mode of CH1 to CH4 Specifies the input mode of CH5 to CH8 Writes the offset value of CH1 and CH2 Writes the gain value of CH1 and CH2 W...

Page 79: ...put mode CH1 and CH2 Mode 0 voltage input 10 to 10 V resolution 20 V x 1 32 000 CH3 and CH4 Mode 3 current input 4 to 20 mA resolution 16 mA x 1 8 000 CH5 and CH6 Mode 9 thermocouple input K type Celsius display CH7 and CH8 Mode F unused Number of times of averaging 1 initial value in each channel I O characteristics Standard I O characteristics initial value in each channel Convenient function Up...

Page 80: ...ng time 1 ms x 6 Number of effective channels 6 ms CH5 and CH6 Sampling time 40 ms x 6 Number of effective channels 240 ms I O assignment X001 Clears the upper lower limit value error X002 Clears the scale over error Y000 to Y017 Output the upper lower limit value error status of each channel Y020 to Y037 Output scale over status of each channel ...

Page 81: ... FNC 79 TO FNC 78 FROM FNC 78 FROM K0 K28 K4M20 K1 K0 K29 D6 K1 FNC 78 FROM FNC 78 FROM K0 K99 H0003 K1 K0 K28 K0 K1 P FNC 79 TO X001 Clear of upper lower limit value error X002 Clear of scale over error RUN monitor Reads the scale over status M20 to M25 Reads the error status BFM 29 D6 Clears the upper lower limit value error Clears the scale over error P FNC 79 TO TO K50 M8000 T0 Initial pulse P...

Page 82: ...ror of CH1 Y17 M15 Upper limit value error of CH8 Y20 M20 Scale over error of CH1 lower limit value Y21 M21 Scale over error of CH1 upper limit value Y37 M35 Scale over error of CH8 upper limit value Outputs the upper lower limit value error status of each channel Outputs the scale over error status of each channel ...

Page 83: ...er 1 T0 K0 K200 D10 K10 K0 K600 D20 K10 K0 K1000 D30 K10 Reads the CH1 data history for 10 times to D10 to D19 Reads the CH2 data history for 10 times to D20 to D29 Refreshes the watch dog timer 1 Reads the CH3 data history for 10 times to D30 to D39 FNC 78 FROM FNC 07 WDT FNC 78 FROM FNC 07 WDT FNC 78 FROM FNC 07 WDT K0 K2200 D60 K10 FNC 78 FROM FNC 07 WDT Reads the CH6 data history for 10 times ...

Page 84: ...FX2N 8AD Analog input block Example program 10 10 6 MEMO ...

Page 85: ... Series programmable controllers FX2N Hardware Manual JY992D66301 This manual explains the wiring installation and specifications for FX2N Series programmable controllers FX2NC Hardware Manual JY992D76401 This manual explains the wiring installation and specifications for FX2NC Series programmable controllers FX3U Series User s Manual Hardware Edition JY997D16501 This manual explains the wiring in...

Page 86: ...ers FX Programming Manual ΙΙ JY992D88101 This manual explains instructions for FX1S FX1N FX2N and FX2NC Series programmable controllers FX3U FX3UC Series Programming Manual Basic Applied Instruction Edition JY997D16601 This manual explains the instructions for FX3U FX3UC Series programmable controller Table A 1 List of Further Information Manual Manual Name Manual No Description ...

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Page 88: ...HI CHIYODA KU TOKYO 100 8310 JAPAN HIMEJI WORKS 840 CHIYODA CHO HIMEJI JAPAN JY992D86001F MEE Effective Sep 2008 Specifications are subject to change without notice USER S MANUAL FX2N 8AD Analog input block MODEL FX2N 8AD U E MODEL CODE 09R608 ...

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