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FX3U Series Programmable Controllers

User’s Manual - Hardware Edition

15 FX2N-32/48E*-* (Input/Output Powered Extension Units)

15.8 FX2N-48ER-UA1/UL

High-Speed

Counters

Output Wiring

Wiring for

Various Uses

Test Run,

Maintenance,

Troubleshooting

IInput/Output

Powered

Extension Units

Input/Output

Extension

Blocks

Extension

Power Supply

Unit

Other Extension

Units and

Options

Display Module

Terminal Block

15.8.3 Terminal layout

FX2N-48ER-UA1/UL

COMCOM

Y4Y2

Y3Y1

-48ER-UA1/UL

COM1 COM2 COM3 COM4

COM5

Table of Contents5
Safety Precautions7
Certification of UL, Cul Standards21
Standards21
Compliance with EC Directive (CE Marking)22
Requirement for Compliance with EMC Directive22
Requirement for Compliance with LVD Directive24
Caution for Compliance with EC Directive25
Classification of Major Components in this Manual26
Introduction26
Introduction of Manuals26
Manual Organization and Position of this Manual28
List of Manuals29
Generic Names and Abbreviations Used in Manuals34
Features and Part Names36
Major Features36
Front Panel38
Names and Functions of Parts38
Sides40
Introduction of Products (Compliant with Overseas Standards)41
List of Products (to be Connected) and Interpretation of Model Names41
A] Main Units42
B] Input/Output Powered Extension Units43
C] Input/Output Extension Blocks44
D] [E] Special Function Units/Blocks45
F] Display Modules and Holder47
G] Expansion Boards47
H] Special Adapters47
I] Extension Power Supply Unit48
J] Extension Cables and Connector Conversion Adapter[K] Battery [L] Memory Cassettes49
M] FX Series Terminal Blocks (Cables and Connectors)49
N] Remote I/O50
O] Power Supply Unit50
Connector Types and Cables for Program Communication51
Communication Cables52
Programming Tool52
Converters and Interface53
Generic Specifications54
Specifications, External Dimensions and Terminal Layout (Main Units)54
Dielectric Withstand Voltage Test and Insulation Resistance Test55
AC Power Supply Type56
Power Supply Specifications56
DC Power Supply Type57
DC Input (Sink/Source)58
Input Specifications58
Output Specifications59
Relay Output59
Product Life of Relay Contacts60
Transistor Output (Sink Type)61
Transistor Output (Source Type)62
Performance Specifications63
External Dimensions (Weight and Installation)66
Fx -16M , Fx66
Fx 3U -48M , Fx 3U -64M , Fx 3U -80M , Fx 3U -128M67
Interpretation68
Terminal Layout68
Fx 3U -16M69
Fx 3U -32M69
Fx 3U -48M70
Fx 3U -64M70
Fx 3U -80M71
Fx 3U -128M72
How to Look at Manufacturer's Serial Number73
Version Check Method73
Version Information and Peripheral Equipment Connectability73
Version Upgrade History73
Applicable Versions of Programming Tool74
In the Case of Programming Tool (Version) Not Applicable74
Program Transfer Speed and Programming Tool74
Programming Tool Applicability74
Cautions on Write During RUN75
Cautions on Using Transparent Function by Way of USB in GOT1000 Series77
Cautions on Using Transparent Port (2-Port) Function of GOT-F900 Series78
Applicable Products and Versions79
In the Case of Peripheral Equipment Not Applicable79
Other Peripheral Equipment Applicability79
Configuration of a Whole System80
Examination of System Configuration80
List of System Components81
System Configuration with Special Adapters83
Rules of System Configuration84
Calculation of Number of Input/Output Points86
Number of Input/Output Points and Maximum Number of Input/Output Points86
Maximum Number of Input/Output Points When CC-Link Master Is Used88
Maximum Number of Input/Output Points When AS-I Master Is Used89
Expansion Board and Special Adapter90
Extension Cable90
Number of Connected Special Extension Devices (Including Extension Cable)90
Special Function Units/Blocks, High-Speed Input/Output Special Adapter90
Expansion of Main Unit (Calculation of Current Consumption)91
Quick Reference Matrix - When Only Input/Output Devices Are Added (AC Power Type)91
When Special Extension Devices Are also Added [Calculation of Current Consumption] (AC Power Type)93
Quick Reference Matrix [When Only Input/Output Devices Are Added] (DC Power Type)96
When Special Extension Devices Are also Added [Calculation of Current Consumption] (DC Power Type)97
Expansion of FX2N Series I/O Powered Extension Unit (Calculation of Current Consumption)100
Quick Reference Matrix (When Only Input/Output Devices Are Added)100
When Special Extension Devices Are also Added (Calculation of Current Consumption)103
Expansion of Extension Power Supply Unit (FX 3U -1PSU-5V)105
Number of Input/Output (Occupied) Points and Current Consumption108
A] Main Units109
B] Expansion Boards110
C] Special Adapters110
D] Input/Output Powered Extension Units/Blocks111
E] Special Extension Devices112
G] Display Module113
H] Extension Power Supply Unit113
Example of System Configuration and System Modification114
Example System Configuration114
Expansion of Main Unit115
Re-Examination of Suitability for Configuration118
Assignment of Input/Output Numbers (X/Y)123
Assignment of Input/Output Numbers (X/Y) and Unit Numbers123
Concept of Assigning123
Example of Assigning124
Application of I/O Number Label125
Concept of Assigning126
Unit Numbers of Special Function Units/Blocks126
Example of Assigning127
Application of Unit Number Labels128
Installation in Enclosure129
- Do Not Wire Vacant Terminals Externally Doing so May Damage the Product131
- Generic Specifications132
- Installation Location133
- Installation Location in Enclosure133
- Spaces in Enclosure134
- 1-Stage Layout135
- Layout in Enclosure135
- Cautions in Examining Installing Method137
- Examination for Installing Method in Enclosure137
- Examples of Installation137
- Installing Methods137
- Preparation for Installation139
- Procedures for Installing on and Detaching from DIN Rail139
- Installation of Main Unit140
- Installation of Input/Output Powered Extension Unit/Block and Special Function Unit/Block141
- Removal of Main Unit141
- Hole Pitches for Direct Mounting143
- Procedures for Installing Directly (with M4 Screws)143
- Example of Mounting Hole Pitches145
- Installation of Input/Output Powered Extension Unit/Block and Special Function Unit/Block146
- Installation of Main Unit146
- Connecting Methods for Main Unit and Extension Devices147
- Connection of Extension Devices147
- Connecting Method a - Connection of Expansion Board148
- Connecting Method B - Connection of Special Adapter149
- Connecting Method C - Connection of Powered Extension Unit/Block to Main Unit149
- Connecting Method D - Connection of Powered Extension Units/Blocks150
- Connecting Method E - Connection of Extension Cable and FX 2N -CNV-BC151
- Connecting Method F - Connection of Input/Output Powered Extension Unit151
- Connecting Method G - Connection of Extension Block to Input/Output Powered Extension Unit152
- Preparation for Wiring and Power Supply Wiring Procedures153
Connect the AC Power Supply to the Dedicated Terminals Specified in this Manual153
If an AC Power Supply Is Connected to a DC Input/Output Terminal or DC Power Supply Terminal, the154
- Preparation for Wiring155
- Wiring Procedures155
- Removal and Installation of Quick-Release Terminal Block155
- Cable Connecting Procedures156
- Input/Output Terminal Block (Power Supply and Input/Output Wiring)156
- Input/Output Connectors (FX 2N Input/Output Extension Blocks)158
- Terminal Block (for Europe) [Expansion Board and Special Adapters]159
- Power Supply Specifications160
- AC Power Supply Type160
- DC Power Supply Type161
- Grounding162
- Examples of External Wiring [AC Power Supply Type]163
- Example of Input/Output Wiring with 24V DC Service Power Supply163
- Example of Sink Input [-Common] Wiring164
- Example of Source Input [+Common] Wiring165
- An External Wiring Example for the Extension Power Supply Unit (Sink Input [-Common])166
- An External Wiring Example for the Extension Power Supply Unit (Source Input [+Common])167
- Examples of External Wiring [DC Power Supply Type]168
- Example of Sink Input [-Common] Wiring168
- Example of Source Input [+Common] Wiring169
- Input Wiring Procedures (Input Interruption and Pulse Catch)170
Cut off All Phases of the Power Supply Externally before Installation or Wiring Work in Order to Avoid170
Failure to Do so May Cause Fire, Equipment Failures or Malfunctions171
- Before Starting Input Wiring172
- Sink and Source Input (24V DC Input Type)172
- DC Input Type (Common to Sink/Source Input)173
- Input Specifications (Main Unit)173
- Handling of 24V DC Input174
- Instructions for Connecting Input Devices175
- Examples of External Wiring (Sink Input) [AC Power Supply Type]177
- Example of External Wiring (Source Input) [AC Power Supply Type]179
- Examples of External Wiring (Sink Input) [DC Power Supply Type]180
- Examle of External Wiring (Source Input) [DC Power Supply Type]182
- AC Input (Except Main Unit)183
- Input Specifications183
- Handling of 100V AC Input183
- Example of External Wiring184
Input Interruption185
- To I50 ) - with Delay Function185
- Allocation of Pointers to Input Numbers (Input Signal ON/OFF Duration)185
- Input Interruption Delay Function185
- Cautions for Input Interruption185
- Examples of External Wiring186
- Pulse Catch (M8170 to M8177)187
- Allocation of Special Memories to Iinput Numbers (on Duration of Input Signals)187
- Cautions for Pulse Catch187
- Examples of External Wiring188
- Use of High-Speed Counters (C235 to C255)189
- Outline189
- Input Specifications190
- High-Speed Input Special Adapter (FX 3U -4HSX-ADP)190
- Cautions in Connecting Mating Device190
- Types of Counting and Operations191
- Classification According to Counting Method191
- Types and Input Signal Forms191
- High-Speed Counter Device Notations191
- List of Device Numbers and Functions192
- Allocation of Device Numbers to Input Numbers194
- Allocation Table194
- Inhibition of Redundant Use of Input Numbers195
- Handling of High-Speed Counters196
- 1-Phase 1-Count Input196
- 1-Phase 2-Count Input197
- 2-Phase 2-Count Input198
- Timing of Updating of Current Value and Comparison of Current Value199
- Timing of Updating of Current Value199
- Comparison of Current Value199
- Conditions for Hardware Counter to be Handled as Software Counter200
- Conditions under Which Counters Are Handled as Software Counters200
- Method of Confirming Operation Status of Counters200
- Calculation of Response Frequency and Overall Frequency201
- Response Frequencies of Hardware Counters201
- Response Frequencies and Overall Frequency of Software Counters201
- Examples of External Wiring (Rotary Encoder)204
- 1-Phase 1-Input [C235 to C245]204
- 2-Phase 2-Input [C251 to C255]205
- Cautions for the Other Side Device206
- Related Devices and Function Switching Procedures207
- Related Devices207
- Function Switching] Switching of Logic of External Reset Input Signal209
- Function Switching] Switching of Allocation and Functions of Input Terminals209
- Function Switching] Procedures for Using 2-Phase 2-Count Input Counters C251 to C255 in 4 Edge Count Mode210
- Output Wiring Procedures211
Damage to the Product or Electric Shock211
- Sink and Source Output (Transistor)213
- External Wiring for Relay Output214
- Output Specifications (Main Unit)214
- Handling of Relay Output215
- Product Life of Relay Contacts215
- External Wiring Precautions216
- Example of External Wiring217
- External Wiring of Transistor Output (Sink/Source) Type218
- Output Specifications (Main Unit) Transistor Output (Sink Type)218
- Output Specifications (Main Unit) Transistor Output (Source Type)219
- Handling of Transistor Output220
- External Wiring Precautions222
- Example of External Wiring224
- External Wiring for Triac (SSR) Output Type226
- Handling of Triac Output226
- External Wiring Precautions227
- Example of External Wiring228
- Product228
- Examples of Wiring for Various Uses229
- Make Sure to Attach the Terminal Cover, Offered as an Accessory, before Turning on the Power or229
- Notes about Examples of Wiring230
- Digital Switch [DSW Instructions (FNC72)/BIN Instructions (FNC19)]231
- When DSW Instructions Are Used231
- When bin Instructions Are Used234
- Ten Key Input [TKY Instructions (FNC70)]235
- Hexadecimal Input [HKY Instructions (FNC71)]236
- Input Matrix [MTR Instructions (FNC 52)]239
- Seven Segment with Latch [SEGL Instructions (FNC74)/BCD Instructions (FNC18)]242
- When SEGL Instructions Are Used242
- When BCD Instructions Are Used244
- Test Operation, Adjustment, Maintenance and Troubleshooting246
- Connection to Built-In Programming Connector247
- Preliminary Inspection [Power OFF]247
- Preparation for Test Operation247
- Writing of Program and Program Check [Power on and PLC Stopped]248
- Methods of Running and Stopping249
- Running and Stopping Procedures [Power ON]249
- Use of Several Running/Stopping Methods250
- Operation and Test [Power on and PLC Running]251
- Self-Diagnostic Function251
- Test Functions251
- Program Modification Function252
- Maintenance and Periodic Inspection253
- Periodic Inspection - Battery Life, Etc253
- Procedures for Checking Model Name253
- Maintenance - Product Life of Relay Contacts254
- Procedures for Replacing Battery255
- BATT LED [On/Off]256
- POWER LED [On/Flashing/Off]256
- Troubleshooting with Leds256
- ERROR LED [On/Flashing/Off]257
- Judgment by Error Codes and Representation of Error Codes258
- Operation and Check on Display Module (FX 3U -7DM)258
- Operation and Check by GX Developer259
- Representation of Errors260
- Error Code List and Action261
- DC Input Does Not Operate (Main Unit and Input/Output Extension Blocks)267
- Output Does Not Operate (Main Unit and Input/Output Extension Blocks)267
- Troubleshooting267
- Cautions in Registering Keyword268
- FX 2N -32/48E*-* (Input/Output Powered Extension Units)269
Initiating Operation after Installation or Wiring Work269
- Outline271
- Product Configuration271
- Product List271
- Power Supply Specifications (Power Supply Input/24V DC Service Power Supply)272
- Weight, Accessories, Etc272
- Part Names273
- 32Er-Es/Ul, Fx275
- Fx 2N -32Er-Es/Ul, Fx 2N -48Er-Es/Ul, Fx 2N -48Er-Ds275
- Product Specifications275
- External Dimensions276
- Terminal Layout277
- 32Et-Ess/Ul, Fx278
- Fx 2N -32Et-Ess/Ul, Fx 2N -48Et-Ess/Ul, Fx 2N -48Et-Dss278
- Product Specifications278
- External Dimensions279
- Terminal Layout280
- Fx 2N -32Er, Fx 2N -48Er, Fx 2N -48Er-D281
- Product Specifications281
- External Dimensions282
- Terminal Layout283
- Fx 2N -32Et, Fx 2N -48Et, Fx 2N -48Et-D284
- Product Specifications284
- External Dimensions285
- Terminal Layout286
- Fx 2N -32Es287
- Product Specifications287
- External Dimensions288
- Terminal Layout288
- Fx 2N -48Er-Ua1/Ul289
- Product Specifications289
- External Dimensions290
- Terminal Layout291
- FX 2N -8/16E*-*(Input/Output Extension Blocks)292
Failure to Do so May Cause Electric Shock292
- Outline293
- Product Type293
- List of Products294
- Fx 2N296
- FX -8ER-ES/UL (24V DC Sink/Source Input, Relay Output)296
- Product Specifications296
- Parts Identification and Terminal Arrangement297
- External Dimensions298
- FX 2N -8ER (24V DC Sink Input, Relay Output)299
- Product Specifications299
- Parts Identification and Terminal Arrangement300
- External Dimensions301
- Fx 2N -8Ex-Es/Ul, Fx 2N302
- 16EX-ES/UL (24V DC Sink/Source Input)302
- Product Specifications302
- Parts Identification and Terminal Arrangement303
- External Dimensions304
- FX 2N -8EX, FX 2N -16EX and FX 2N -16EX-C305
- Product Specifications305
- Parts Identification and Terminal Arrangement306
- External Dimensions307
- FX 2N -16EXL-C (5V DC Input: 16 Points)309
- Product Specifications309
- Parts Identification and Terminal Arrangement310
- External Dimensions310
- Example of Wiring310
- Fx 2N312
- FX -8EX-UA1/UL (100V AC Input)312
- Product Specifications312
- Parts Identification and Terminal Arrangment313
- External Dimensions313
- Fx 2N -8Eyr-Es/Ul, Fx 2N314
- 16EYR-ES/UL (Relay Output)314
- Product Specifications314
- Parts Identification and Terminal Arrangement315
- External Dimensions316
- FX -8EYT-ESS/UL, FX -16EYT-ESS/UL (Transistor Output)317
- 16EYT-ESS/UL (Transistor Output)317
- Product Specifications317
- Parts Identification and Terminal Arrangement318
- External Dimensions319
- Fx 2N -8Eyr, Fx 2N320
- 16EYR (Relay Output)320
- Product Specifications320
- Parts Identification and Terminal Arrangement321
- External Dimensions322
- FX 2N -8EYT, FX 2N -16EYT and FX 2N -16EYT-C (Transistor Output)323
- Product Specifications323
- Parts Identification and Terminal Arrangement324
- External Dimensions325
- FX 2N -8EYT-H (Transistor Output)327
- Product Specifications327
- Parts Identification and Terminal Arrangment328
- External Dimensions328
- FX 2N -16EYS (Triac Output: 16 Points)329
- Product Specifications329
- Parts Identification and Terminal Arrangement330
- External Dimensions330
- FX 3U -1PSU-5V (Extension Power Supply Unit)331
- Introduction331
- Specifications332
- Generic Specifications332
- Performance Specifications332
- External Dimensions332
- Extension Power Supply Unit Related Precaution332
- Other Extension Devices and Optional Units (External Dimensions and Terminal Arrangement)333
- Special Function Units/Blocks333
- Fx 0N -3A333
- Fx 2N -2Ad333
- Fx 2N -2Da334
- Fx 3U -4Ad334
- Fx 3U -4Da335
- Fx 2N -4Ad335
- Fx 2N -4Da336
- Fx 2N -4Ad-Pt336
- Fx 2N -4Ad-Tc337
- Fx 2N -5A337
- Fx 2N -2Lc338
- Fx 2N -8Ad338
- Fx 2N -1Hc339
- Fx 3U -20Ssc-H339
- Fx 2N -1Pg(-E)340
- Fx 2N -10Pg340
- Fx 2N -10Gm341
- Fx 2N -20Gm341
- Fx 2N -1Rm(-E)-Set342
- Fx 2N -232If343
- Fx 2N -32Asi-M343
- Fx 2N -64Cl-M344
- Fx 2N -16Ccl-M344
- Fx 2N -32Ccl345
- Fx 2N -16Lnk-M345
- Extension Power Supply Unit346
- Fx 3U -1Psu-5V346
- Special Adapters346
- Fx 3U -4Ad-Adp346
Fx 3U -4Ad-Pt-Adp347
Fx 3U -4Ad-Tc-Adp347
Fx 3U -4Da-Adp347
Fx 3U -232Adp348
- Fx 3U -485Adp348
- Fx 3U -4Hsx-Adp349
- Fx 3U -2Hsy-Adp349
- Expansion Board350
- Fx 3U -Usb-Bd350
- Fx 3U -232-Bd350
- Fx 3U -422-Bd350
- Fx 3U -485-Bd351
- Fx 3U -Cnv-Bd351
- Power Supply352
- Fx 2N- 20Psu352
- Connector Conversion Adapter352
- Fx 2N -Cnv-Bc352
- Interface Module353
- Fx-232Awc-H353
- Fx-Usb-Aw353
- Display Module354
- Fx 3U -7Dm354
- Fx 3U -7Dm-Hld354
- FX 3U -7DM (Display Module)355
- Description of Products (Introduction of Related Products)356
- Specifications357
- Display/Switch Specifications357
- Parts Layout357
- External Dimensions357
- Installation and Removal358
- Summary of Functions359
- Procedure for Accessing the Menu Screen from the Title Screen360
- Title Screen360
- Top Screen (Time Display)360
- Menu Screen360
- Menu Structure361
- Monitor/Test Mode [Excluding User-Registered Devices]363
- Relevant Devices363
- Monitor Mode Operation364
- Monitor Screen & Status Display365
- Test Mode Operation367
- Test Mode Operation Notes370
- Monitor/Test Mode [User-Registered Devices]371
- Monitor Mode Operation371
- Test Mode Operation372
- Error Check372
- LANGUAGE (Menu Display Language Setting)373
- Changing to Japanese Menus373
- Changing to English Menus374
- D8302 Changes by Program & Related Devices374
- Contrast375
- Clock Menu (Current Time Setting)376
- Current Time Setting Procedure376
- Displaying the Current Time377
- Changing the Current Time's "Year" from 2-Digit Format to 4-Digit Format377
- Entrycodes378
- Entry Code Types & Levels378
- Level-Specific Restrictions Screen List379
- Entry Code Storage380
- Screens Requiring Entry Codes for Access380
- Canceling an Entry Code381
- Enabling an Entry Code382
- Device All-Clear382
- Device All-Clear Operation382
- PLC Status383
- Display Operation383
- PLC Status Display Items384
- Scan Time (Scan Time Display)385
- Scan Time Display Operation385
- Cassette (Memory Cassette Transfers)385
- Transfer from Internal RAM to Memory Cassette (Cassette <- RAM)386
- Transfer from Memory Cassette to Internal RAM (Cassette -> RAM)387
- Memory Cassette & Internal RAM Consistency Check (Cassette : RAM)388
- System Information (Restrictions from PLC)389
- System Information List389
- System Information Setting Programexample390
- User (User-Registered Device Setting)391
- System Information - User-Registered Device Setting391
- Precaution When Setting 3 or Fewer Devices391
- Program Example 1 (When 4 Devices Are Displayed as User-Registered Devices)392
- Program Example 2 (When 3 or Fewer Devices Are Displayed as User-Registered Devices)393
- Program Example 3 (When 5 or more Devices Are Displayed as User-Registered Devices)394
- Operation Button ON/OFF Information396
- Various Applications396
- System Information - Operation Button ON/OFF Information396
- Specifying a Hexadecimal Current Value Display Format397
- System Information - Specifying a Hexadecimal Current Value Display Format397
- Program Example 1 (Specifying a Hexadecimal Data Display Format)397
- Program Example 2 (Specifying a Decadal Data Display Format)397
- Display Screen Protect Function398
- Entry Code & Display Screen Protect Function Levels and Corresponding Restrictions398
- Relationship between Entry Code & Display Screen Protect Function398
- Entry Code Levels399
- System Information - Display Screen Protect Function399
- Program Example (Screen Protect Function Setting)399
- Pointers for Using the Display Screen Protect Function400
- User Message Display Function401
- System Information - User Message Display Function401
- Shift JIS Code Arrangement Precautions401
- Displaying a Word Device Current Value as a Message402
- Program Example 1 (User Messages Display Switching)402
- Program Example 2 ([+] / [-] Buttons of User Messages Switching)403
- Program Example 3 (User Messages Plus Data Display)404
- Character Data Input Procedure407
- Operation Error Messages & Corrective Actions410
- When a "Fatal Error Occurred" Message Appears411
- Menu Display Characters - Japanese & English Display Character Correspondence Table412
- FX-16/32E*-*-TB (Terminal Block)413
- Overview415
- Product Configuration416
- External Dimensions & Component Names417
- Terminal Arrangement418
- Installation Work420
- Mounting420
- Removal420
- Input/Output Cable Connection420
- Connection to Terminal Block421
- Fx-16E-Tb, Fx-32E-Tb422
- Internal Circuit422
- Example of Input External Wiring423
- Output External Wiring423
- Fx-16Ex-A1-Tb424
- Specifications424
- Internal Circuit425
- Example of Input External Wiring425
- Fx-16Eyr-Tb426
- Specifications426
- Internal Circuit427
- Example of Output External Wiring427
- External Wiring Precautions428
- Product Life of Relay Output Contacts429
- Fx-16Eyt-Tb, Fx-16Eyt-H-Tb430
- Specifications430
- Internal Circuit431
- Example of Output External Wiring431
- External Wiring Precautions432
- Fx-16Eys-Tb433
- Specifications433
- Internal Circuit434
- Example of Output External Wiring434
- External Wiring Precautions435
- FX3U-FLROM-16/64/64L (Memory Cassette)436
- Specifications436
- Electrical Specifications436
- Component Names & External Dimensions436
- Installation & Removal437
- Memory Cassette Installation437
- Memory Cassette Removal438
- Saved Data Content439
- PROTECT Switch440
- PROTECT Switch Setting440
- PROTECT Switch Operation440
- Precautions When Setting and Using the Switch440
- Memory Cassette <-> PLC (RAM Memory) Transfers by Loader Function441
- Tool for Pressing the [WR] and [RD] Keys441
- Writing (WR: 64L -> PLC)441
- Reading (RD: 64L <- PLC)442
- Transfers by Display Module Operation442
- Operation Precautions442
- FX 3U -32BL (Battery)443
- Battery Purpose443
- Specifications443
- Differences between Main Unit's Internal Battery and the Optional Battery443
- Battery Handling444
- Battery Life & Replacement Guidelines444
- Reading the Date of Manufacture444
- Special "Battery Low-Voltage" Device & Notification Program Example444
- Battery-Free Operation445
- Battery Replacement446
- Battery Related Precautions446
- Appendix A: Operation of Special Devices (M8000 -, D8000 -)447
- Appendix A-1 Special Auxiliary Relay (M8000 to M8511)447
- Appendix A-2 Special Data Register (D8000 to D8511)455
- Appendix A-3 Analog Special Adapters [M8260 to M8299 and D8260 to D8299]462
- Appendix A-3-1 Special Auxiliary Relays (M8260 to M8299)462
- Appendix A-3-2 Special Data Registers (D8260 to D8299)463
- Appendix B: Instruction List464
- Appendix B-1 Basic Instructions464
- Appendix B-2 Step Ladder Instructions464
- Appendix B-3 Applied Instructions465
- Appendix C: Character-Code469
- Appendix C-1 ASCII Code Table469
- Appendix D: Discontinued Models470
- Warranty472
- Revised History473

Mitsubishi FX3U Series User Manual

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Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English