Mitsubishi Electric FX2N-8AD User Manual
  1. Manuals
  2. Brands
  3. Mitsubishi Electric Manuals
  4. Controller
  5. FX2N-8AD
  6. User manual

Mitsubishi Electric FX2N-8AD User Manual

Melsec-f programmable controllers analog input block
Hide thumbs Also See for FX2N-8AD:
Table of Contents

Advertisement

Quick Links

Industrial automation
Elincom Group
European Union: www.elinco.eu
Russia: www.elinc.ru
USER'S MANUAL
FX
-8AD Analog input block
2N

Advertisement

Table of Contents
loading

Related Manuals for Mitsubishi Electric FX2N-8AD

Summary of Contents for Mitsubishi Electric FX2N-8AD

  • Page 1 USER’S MANUAL Industrial automation -8AD Analog input block Elincom Group European Union: www.elinco.eu Russia: www.elinc.ru...
  • Page 2 FX2N-8AD Analog input block Foreword • This manual contains text, diagrams and explanations which will guide the reader in the correct installation and operation of the FX -8AD Analog input block. It should be read and understood before attempting to install or use the unit.
  • Page 3 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.
  • Page 4 FX2N-8AD Analog input block...
  • Page 5 FX2N-8AD Analog input block Guidelines for the Safety of the User and Protection of the FX -8AD Analog input block. This manual provides information for the use of the FX -8AD Analog input block. The manual has been written to be used by trained and competent personnel. The definition of such a...
  • Page 6 FX2N-8AD Analog input block Notes on the Symbols Used in this Manual At various times throughout this manual certain symbols will be used to highlight points which are intended to ensure the users personal safety and protect the integrity of equipment.
  • Page 7 • 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.
  • Page 8 FX2N-8AD Analog input block...

  • Page 9: Table Of Contents

    FX2N-8AD Analog input block Contents. Guideline..........................iii 1. Introduction ..................1-1 2. External Dimensions ................2-1 3. Part Name ...................3-1 4. Installation ...................4-1 5. Connection to PLC ................5-1 6. Wiring ....................6-1 Caution......................6-1 7. Specifications ..................7-1 Buffer Memory (BFM).................8-1 Buffer Memories (BFM) lists ................8-3 Details of buffer memories ................
  • Page 10 FX2N-8AD Analog input block Contents. 8.2.14 BFM #32: Operating time .................. 8-26 8.2.15 BFM#33 disconnection detection (Only goods: since V1.10)......8-27 8.2.16 BFM #41 to BFM #48: Offset data BFM #51 to BFM #58: Gain data............... 8-28 8.2.17 BFM #61 to BFM #68: Addition data ..............8-30 8.2.18...

  • Page 11: Introduction

    FX2N-8AD Analog input block Introduction 1 Introduction The FX -8AD analog input block (hereafter referred to as "FX -8AD") converts 8 points of analog input values (voltage input, current input and temperature input) into digital values, and transfers them to the PLC main unit.
  • Page 12 FX2N-8AD Analog input block Introduction 1 4) Up to two FX -8AD units can be connected to FX main unit, FX extension unit, FX main unit. Up to eight FX -8AD units can be connected to the FX Series PLC.

  • Page 13: External Dimensions

    FX2N-8AD Analog input block External Dimensions 2 External Dimensions Figure 2.1: External Dimensions 75(2.95) 8(0.31) COM1 COM3 COM2 COM4 -8AD POWER COM6 COM8 COM5 COM7 67(2.64) 8(0.31) (installation dimension) 75(2.95) Dimensions: mm(inch) Mass(Weight): 0.3 kg(0.66 lbs)
  • Page 14 FX2N-8AD Analog input block External Dimensions 2 MEMO...

  • Page 15: Part Name

    FX2N-8AD Analog input block Part Name 3 Part Name Figure 3.1: Part name Table 3.1: Status indicator LED Indication Description Installation hole (screw M4) Status indicator LED Lit while 5 V power is normally POWER supplied from PLC. Lit while 24 V power is normally...
  • Page 16 FX2N-8AD Analog input block Part Name 3 MEMO...

  • Page 17: Installation

    FX2N-8AD Analog input block Installation 4 Installation Install the FX -8AD to the right side of a main unit, extension unit, extension block or special block of the FX Series PLC. The FX -8AD can be installed with a DIN rail (DIN46277 of 35 mm in width) or directly installed with screws M4.
  • Page 18 FX2N-8AD Analog input block Installation 4 Figure 4.1: Installation with DIN rail • The FX -8AD can be installed on a DIN rail (DIN46277) of 35 mm in width as it is. For COM1 COM3 COM2 COM4 removal, pull down on the DIN rail mounting...

  • Page 19: Connection To Plc

    FX2N-8AD Analog input block Connection to PLC 5 Connection to PLC Connect the FX -8AD to the right side of a main unit, extension unit or extension block of Series PLC with an extension cable. For connection to a main unit or extension block of the FX...
  • Page 20 FX2N-8AD Analog input block Connection to PLC 5 MEMO...

  • Page 21: Wiring

    FX2N-8AD Analog input block Wiring 6 Wiring Caution 1) Do not lay signal cable near to high voltage power cable or house them in the same trunking duct. Effects of noise or surge induction may occur. Keep signal cables a safe distance of more than 100 mm (3.94") from these power cables.
  • Page 22 FX2N-8AD Analog input block Wiring 6 Figure 6.2: Wiring -8AD 5.8kΩ Thermocouple 250Ω (K, J or T type) 200kΩ COM3 *1 Shielded cable 5.8kΩ Current input 250Ω 200kΩ COM2 5.8kΩ Voltage input 250Ω 200kΩ COM1 +15V DC/DC DC24V converter *4 Connected to...
  • Page 23 FX2N-8AD Analog input block Wiring 6 *1 Use a two-core, twisted, shielded cable for the analog input line, and separate it from other power lines or a lines easily induced. *2 If there is voltage ripple in the input or there is noise in the external wiring, connect a capacitor of approximately 0.1 to 0.47 µF, 25 V.
  • Page 24 FX2N-8AD Analog input block Wiring 6 MEMO...

  • Page 25: Specifications

    FX2N-8AD Analog input block Specifications 7 Specifications Table 7.1: General specifications Item Specifications Ambient temperature 0 to +55 °C during operation, -20 to +70 °C during storage range Ambient humidity 35 to 85 % RH during operation (Dew condensation shall not be allowed.) Frequency 10 to 57 Hz, half amplitude 0.075 mm, 57 to 150 Hz, acceleration 9.8...
  • Page 26 FX2N-8AD Analog input block Specifications 7 Table 7.2: Power supply specifications Item Specifications Interface driving 24 V DC±10%, 80 mA (maximum), supplied via terminal from outside power supply CPU driving power 5 V DC, 50 mA, supplied via extension cable from PLC main unit supply Table 7.3: Performance specifications...
  • Page 27 FX2N-8AD Analog input block Specifications 7 Table 7.4: Voltage/current input specifications Item Voltage input Current input -10 to +10 V DC -20 to +20 mA DC, +4 to +20 mA DC (input resistance: 250 Ω) (input resistance: 200 kΩ) Adjustment is enabled in following condition:...
  • Page 28 FX2N-8AD Analog input block Specifications 7 Table 7.5: Thermocouple input specifications (JIS C 1602-1995) Item K type thermocouple J type thermocouple T type thermocouple -100 to 1200 °C -100 to 600 °C -100 to 350 °C Analog input range -148 to 2192 °F -148 to 1112 °F...

  • Page 29: Buffer Memory (Bfm)

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 Buffer Memory (BFM) Caution 1) Do not access 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.
  • Page 30 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Data transfer between the FX -8AD and the PLC main unit is performed through buffer memories (hereafter referred to as "BFM") of the FX -8AD. Each BFM consists of 1 word, 16 bits. The BFM No. 0 to 3399 and a function are assigned to each BFM.

  • Page 31: Buffer Memories (Bfm) Lists

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 Buffer Memories (BFM) lists Table 8.1: BFM Lists Hold against Description Initial value power failure Specifies input mode of CH1 to CH4. H0000 at shipment Specifies input mode of CH5 to CH8.
  • Page 32 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure ⎯ ⎯ #18 Reserved Disables setting change of I/O characteristics (BFM #0, BFM #1, BFM #21) and convenient functions (BFM #22).
  • Page 33 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure Operating time 0 to 64,800 (s) After that, 64,800 is kept. ⎯ Measurement starts when power is turned on, and measured value is reset when power is turned off.
  • Page 34 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure #53 CH3 gain data (mV or µA) K5000 at shipment #54 CH4 gain data (mV or µA) K5000 at shipment #55 CH5 gain data (mV or µA) K5000 at shipment #56 CH6 gain data (mV or µA)
  • Page 35 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure CH8 addition data Setting range: -16,000 to +16,000 ⎯ (valid while BFM #22 b0 is ON) • ⎯ ⎯ • Reserved •...
  • Page 36 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure Maximum digital value ⎯ #81 CH1 upper limit value error set value (valid while BFM #22 b1 is ON) inside input range Maximum digital value ⎯...
  • Page 37 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure CH3 sudden change detection set value ⎯ 5% of full scale Setting range: 1 to 50% of full scale (valid while BFM #22 b2 is ON) CH4 sudden change detection set value ⎯...
  • Page 38 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure ⎯ #107 CH7 peak value (minimum value) (valid while BFM #22 b3 is ON) Refer to 8.2.21. ⎯ #108 CH8 peak value (minimum value) (valid while BFM #22 b3 is ON) ⎯...
  • Page 39 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure Resets or stops data history. ⎯ #199 (valid only in channels for which number of times of averaging (BFM #2 to #9) is set to "1") ⎯...
  • Page 40 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.1: BFM Lists Hold against Description Initial value power failure • ⎯ • Data history sampling is valid • only in channels for which ⎯ #3397 CH8 data history (398th value) number of times of averaging ⎯...

  • Page 41: Details Of Buffer Memories

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 Details of buffer memories 8.2.1 BFM #0, #1: Specifies input mode. Specify the input mode of CH1 to CH4 by writing a numeric value to BFM #0. Specify the input mode of CH5 to CH8 by writing a numeric value to BFM #1.
  • Page 42 FX2N-8AD Analog input block Buffer Memory (BFM) 8 =8: Current input mode, analog value direct display (-20,000 to +20,000), resolution 2.50 µA =9: Thermocouple input mode, K type, Celsius display (-100 to +1,200°C), resolution 0.1°C =A: Thermocouple input mode, J type, Celsius display (-100 to +600°C), resolution 0.1°C =B: Thermocouple input mode, T type, Celsius display (-100 to +350°C), resolution 0.1°C...

  • Page 43: Bfm #2 To Bfm #9: Number Of Times Of Averaging

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.2 BFM #2 to BFM #9: Number of times of averaging When using BFM #10 to #17 as the average data, write the number of times of averaging to BFM #2 to BFM #9.
  • Page 44 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Update of average data • When the number of times of averaging (BFM #2 to BFM #9) is set to "400" or less, the average (BFM #10 to BFM #17) is updated every time the A/D conversion processing is performed.

  • Page 45: Bfm #10 To Bfm #17: Channel Data

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.3 BFM #10 to BFM #17: Channel data The A/D conversion data of each channel is written to BFM #10 to BFM #17. You can select the immediate (current value) data or the average data by setting the number of times of averaging (BFM #2 to BFM #9) described above.

  • Page 46: Bfm #21: Writes I/O Characteristics

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.6 BFM #21: Writes I/O characteristics Each channel No. is assigned to the lower eight bits of BFM #21. When a bit is set to ON, the offset data (BFM #41 to BFM #48) and the gain data (BFM #51 to BFM #58) of the assigned channel No.

  • Page 47: Bfm #22: Sets Convenient Functions

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.7 BFM #22: Sets convenient functions The functions described below are assigned to b0 to b3 of BFM #22. When a bit is set to ON, the assigned function becomes valid. When a bit is set to OFF, the assigned function becomes invalid.

  • Page 48: Bfm #24: Specifies High-Speed Conversion Channel

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.8 BFM #24: Specifies high-speed conversion channel When using only the voltage input mode and the current input mode, you can improve the A/D conversion timing (to 1/4 of the normal timing) for only one channel among CH1 to CH8.

  • Page 49: Bfm #26: Upper/Lower Limit Value Error Status

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.9 BFM #26: Upper/lower limit value error status When you use the upper/lower limit value detection function (BFM #22 b1), the detection result is written to BFM #26. The lower limit value error or the upper limit value error of each channel is assigned to each bit of BFM #26.

  • Page 50: Bfm #27: A/D Data Sudden Change Detection Status

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.10 BFM #27: A/D data sudden change detection status When you use the sudden change detection function (BFM #22 b2), the detection result is written to BFM #27. The sudden change detection + direction or the sudden change detection - direction of each channel is assigned to each bit of BFM #27.

  • Page 51: Bfm #28: Scale Over Status

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.11 BFM #28: Scale over status When the analog input value of each channel is outside the range in which input is available, the result is written to BFM #28. Table 8.4: Range in which input is available...
  • Page 52 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.5: Bit assignment in BFM #28 Channel Description Scale over: Less than lower limit Scale over: More than upper limit and disconnection detection Scale over: Less than lower limit Scale over: More than upper limit and disconnection detection...

  • Page 53: Bfm #29: Error Status

    Check wiring and supply voltage. -8AD may have failed. b3 Hardware error Contact Mitsubishi Electric System Service nearest to you. A/D conversion value is abnormal. b4 A/D conversion value error Using scale over data (BFM #28), check channel in which error has occurred.

  • Page 54: Bfm #30: Model Code

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.6: Bit assignment in BFM #29 Assignment Description Input mode (BFM #0, BFM #1) is incorrectly set. b9 Input mode setting error Set it within range from 0 to F. Number of times of Number of times of averaging is incorrectly set.

  • Page 55: Bfm#33 Disconnection Detection (Only Goods: Since V1.10)

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.15 BFM#33 disconnection detection (Only goods: since V1.10). It does the disconnection detection of all channels used by writing K1 in BFM#33 in the thermo-couple input mode (Set it by BFM#1 and # 0).

  • Page 56: Bfm #41 To Bfm #48: Offset Data Bfm #51 To Bfm #58: Gain Data

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.16 BFM #41 to BFM #48: Offset data BFM #51 to BFM #58: Gain data Offset data : Analog input value when the digital value is "0" Gain data : Analog input value when the digital value is as shown below (The digital value varies depending on the setting of the input mode.)
  • Page 57 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Initial offset/gain value (Unit: mV for voltage input, µA for current input) Table 8.8: Initial offset/gain value Input mode (BFM #0, BFM #1) Initial offset value 4000 4000 4000 Initial gain value...

  • Page 58: Bfm #61 To Bfm #68: Addition Data

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.17 BFM #61 to BFM #68: Addition data When you use the data addition function (BFM #22 b0), the data (BFM #10 to BFM #17), the peak value (BFM #101 to BFM #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).

  • Page 59: Bfm #71 To Bfm #78: Lower Limit, Error Set Value

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.18 BFM #71 to BFM #78: Lower limit, error set value BFM #81 to BFM #88: Upper limit, error set value When using the upper/lower limit value detection function (BFM #22 b1), write the lower limit value of each channel to BFM #71 to BFM #79 and the upper limit value of each channel to BFM #81 to BFM #88.
  • Page 60 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.10: Setting range Initial value Input mode (BFM #0, BFM #1) Setting range Lower Upper limit limit 7: Current input mode (-20 to +20 mA), resolution 20 mA x 1/4,000 -4096 to 4095...

  • Page 61: Bfm #91 To Bfm #98: Sudden Change Detection Set Value

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.19 BFM #91 to BFM #98: Sudden change detection set value When using the sudden change detection function (BFM #22 b2), write the set value to judge the sudden change. When the data (BFM #10 to BFM #17) of each channel is updated, if the difference between the previous value and the new value is larger than the sudden change detection set value (BFM #91 to BFM #98), the result is written to the sudden change detection status (BFM #27).
  • Page 62 FX2N-8AD Analog input block Buffer Memory (BFM) 8 Table 8.11: Setting range Input mode (BFM #0, BFM #1) Setting range Initial value A: Thermocouple input mode (J type), Celsius display 1 to 3500 B: Thermocouple input mode (T type), Celsius display...

  • Page 63: Bfm #99: Clears Upper/Lower Limit Value Error And Sudden Change Detection Error

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.20 BFM #99: Clears upper/lower limit value error and sudden change detection error The commands to clear the lower limit value error, the upper limit value error and the sudden change detection error are assigned to the lower three bits of BFM #99.

  • Page 64: Bfm #101 To Bfm #108: Peak Value (Minimum Value) Bfm #111 To Bfm #118: Peak Value (Maximum Value)

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 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.

  • Page 65: Bfm #109: Peak Value Reset Flag (Minimum Value) Bfm #119: Peak Value Reset Flag (Maximum Value)

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.22 BFM #109: Peak value reset flag (minimum value) BFM #119: Peak value reset flag (maximum value) When you use the peak value hold function (BFM #22 b3), BFM #109 clears the peak value (minimum value) stored in BFM #101 to BFM #108, and BFM #119 clears the peak value (maximum value) stored in BFM #111 to BFM #118.

  • Page 66: Bfm #198: Data History Sampling Time

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.23 BFM #198: Data history sampling time Set the data history sampling time. BFM #198 is valid only in channels for which the number of times of averaging (BFM #2 to #9) is set to "1".
  • Page 67 FX2N-8AD Analog input block Buffer Memory (BFM) 8 When the high-speed conversion mode is used (and only voltage input and current input are used) When the set value is "0" or "1" Channel specified for high-speed conversion : 1 ms...

  • Page 68: Bfm #199: Resets Or Stops Data History

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.24 BFM #199: Resets or stops data history The data history reset function is assigned to the lower eight bits of BFM #199. The data history stop function is assigned to the upper eight bits of BFM #199.

  • Page 69: Bfm #200 To Bfm #3399: Data History

    FX2N-8AD Analog input block Buffer Memory (BFM) 8 8.2.25 BFM #200 to BFM #3399: Data history The A/D conversion of each channel is sampled, and written to BFM #200 to BFM #3399. The table below shows the assignment of channel No. and BFM No. Data is stored in turn from the smallest BFM No.
  • Page 70 FX2N-8AD Analog input block Buffer Memory (BFM) 8 MEMO 8-42...

  • Page 71: Adjustment Of I/O Characteristics

    FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 Adjustment of I/O Characteristics At the time of shipment from the factory, the FX -8AD has the standard 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.

  • Page 72: Standard I/O Characteristics

    FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 Standard I/O characteristics Explanation on description The input mode of the standard I/O characteristics is abbreviated as shown below. 0. Voltage input, -10 to 10V, 20V × 1/32,000 ➀ ➁ ➂...
  • Page 73 FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 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 Digital value Approx. -10,200 10,000 Input 8,000 voltage -10,000 Approx. +10,200...
  • Page 74 FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 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 Digital value 8,000 4,000 Input Input current...
  • Page 75 FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 A. Thermocouple input, J type, Celsius B. Thermocouple input, T type, Celsius Digital value Digital value 6,000 3,500 Input Input temperature temperature (°C) (°C) -100 -100 -1,000 -1,000 C. Thermocouple input, K type, Farenheit D.
  • Page 76 FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 E. Thermocouple input, T type, Farenheit Digital value 6,620 Input temperature (°F) -148 -1,480...

  • Page 77: Adjustment Of I/O Characteristics

    FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 Adjustment of I/O characteristics Adjust the I/O characteristics using the buffer memories in the FX -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.
  • Page 78 FX2N-8AD Analog input block Adjustment of I/O Characteristics 9 Figure 9.2: Example program X000 H1600 Specifies the input mode of CH1 to CH4. Operation start HFFA1 Specifies the input mode of CH5 to CH8. instruction Writes the offset value of CH1 and CH2.

  • Page 79: Example Program

    FX2N-8AD Analog input block Example program 10 Example program This section introduces an example of program to take analog data to the PLC using the FX 8AD. Condition System configuration: The FX -8AD (unit No. 0) is connected as a special block nearest to the FX Series PLC main unit.
  • Page 80 FX2N-8AD Analog input block Example program 10 Data history function: Used while sampling time is set to 0 ms (initial value). CH1 to CH4 : Sampling 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...
  • Page 81 FX2N-8AD Analog input block Example program 10 Figure 10.1:Example program Initial pulse As for the changed input M8002 mode, the power failure Specifies the input mode of FNC 79 H3300 maintenance is done by CH1 to CH4. EEPROM. Specifies the input mode of...
  • Page 82 FX2N-8AD Analog input block Example program 10 Lower limit value error of CH1 Upper limit value error of CH1 Outputs the upper/lower limit value error status of each channel. Upper limit value error of CH8 Scale over error of CH1 (lower limit value) Scale over error of CH1 (upper limit value) Outputs the scale over error status of each channel.
  • Page 83 FX2N-8AD Analog input block Example program 10 FNC 78 K200 Reads the CH1 data history (for 10 times) to D10 to D19. FROM FNC 07 Refreshes the watch dog timer.*1 FNC 78 K600 Reads the CH2 data history (for 10 times) to D20 to D29.
  • Page 84 FX2N-8AD Analog input block Example program 10 MEMO 10-6...

  • Page 85: Associated Manuals List

    FX2N-8AD Analog input block Appendix A Appendix A: Associated Manuals List For further information manual about FX Series, refer to following table. Table A-1: List of Further Information Manual Manual Name Manual No. Description This manual explains the wiring, installation and...
  • Page 86 FX2N-8AD Analog input block Appendix A Table A-1: List of Further Information Manual Manual Name Manual No. Description This manual explains instructions for FX , FX , FX FX Programming Manual JY992D48301 FX, FX , FX and FX Series programmable controllers.
  • Page 88 USER’S MANUAL -8AD Analog input block HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN FX2N-8AD-U-E MODEL 09R608 MODEL CODE JY992D86001F Effective Sep. 2008 (MEE) Specifications are subject to change without notice.

Table of Contents