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Table of Contents

Introduction7
- Intended Audience7
CJ2 CPU Unit Manuals8
- Overview9
Manual Structure10
- Additional Information10
Sections in this Manual11
- Table of Contents13
Safety Precautions21
Application Precautions27
Operating Environment Precautions31
Regulations and Standards32
Related Manuals34
- Overview37
Section 1 Overview38
Overview of CJ2 CPU Units38
- Overview38
- CJ2 CPU Unit Features39
Basic Operating Procedure43
Specifications44
- General Specifications44
- Performance Specifications45
- Function Specifications49
  - Basic System Configuration and Devices55
Basic System Configuration56
- CPU Rack56
- Expansion Racks56
- Memory Cards58
- Configuration Units64
- Calculating Unit Current Consumption72
- Calculating Power Consumption74
Expanded System Configuration76
- Serial Communications76
- System Configuration Example77
- Communications Networks78
  - Nomenclature and Functions81
Section 3 Nomenclature and Functions82
CPU Units82
- CPU Section82
- Built-In Ethernet/Ip Section87
Memory Card92
- Models and Specifications92
- Operating Procedures92
- Installing and Removing93
Power Supply Units96
- Models and Specifications96
- Components99
- Selecting a Power Supply Unit101
CJ-Series Basic I/O Units103
- Basic I/O Units with Terminal Blocks103
- Thirty-Two/Sixty-Four-Point Basic I/O Units with Connectors105
I/O Control Units and I/O Interface Units106
- Component Names106
- System Configuration106
4-1 Support Software108
- CX-One FA Integrated Tool Package108
- Support Software108
Connection Methods112
- Connecting by USB112
- Connecting by RS-232C114
- Connecting by Ethernet116
  - Installation119
Fail-Safe Circuits120
Installation122
- Installation and Wiring Precautions122
- Installation in a Control Panel124
- Assembled Appearance and Dimensions126
- Connecting PLC Components129
- DIN Track Installation132
- Connecting CJ-Series Expansion Racks134
- Cable Connections135
Wiring137
- Power Supply Wiring137
- Output Specifications141
- Wiring CJ-Series Basic I/O Units with Terminal Blocks143
- Wiring Basic I/O Units with Connectors145
- Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals149
- Connecting I/O Devices150
- Wiring with Ethernet Cable154
  - Ethernet Connectors155
  - Connecting the Cable155
Control Panel Installation157
- Temperature157
- Humidity159
- Vibration and Shock159
- Atmosphere159
- Electrical Environment160
- Grounding164
  - Troubleshooting167
CPU Unit Errors168
- Errors and Remedies168
- Checking Errors168
- Checking Detailed Status169
- Reading Error Log Information169
- I/O Table Verification171
- Types of Errors172
- Handling Errors173
  - Cpu Reset175
  - Cpu Errors176
Built-In Ethernet/Ip Port Errors and Remedies189
- Checking Built-In Ethernet/Ip Port Error Status189
- Checking Error Status at the Ethernet/Ip Port Seven-Segment Display190
Non-CPU Unit Errors and Remedies192
- Error Causes and Remedies192
  - Inspection and Maintenance199
Section 7 Inspection and Maintenance200
Inspections200
- Inspection Points200
- Tools Required for Inspections201
- Unit Replacement Precautions202
Replacing the Battery203
- Battery Replacement203
- Replacement Procedure204
- Operation When Battery Is Exhausted or Not Installed206
Power Supply Unit Replacement Time208
- Backup Operations215
Section 8 Backup Operations216
Backing up Data216
Using a Computer to Back up Data217
- PLC Backup Tool217
- PLC Backup Tool Operations218
Simple Backup221
- Overview221
- Operating Procedures222
- Verifying Backup Operations with Indicators224
- Related Auxiliary Bits/Words226
- Time Required for Simple Backup226
- Data Backed up Using Simple Backup226
Appendices231
Specifications of Basic I/O Units232
- A-1-1 Overview of Units232
- A-1-2 Basic I/O Units234
- A-1-3 Precautions on Contact Output Units281
- A-1-4 Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals283
- Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals283
- Inputs and Outputs303
Dimensions316
- A-2-1 CJ2H CPU Units316
- A-2-2 Power Supply Units316
- A-2-3 Basic I/O Units319
- A-2-4 I/O Control Unit and I/O Interface Unit322
- A-2-5 I/O Memory Card322
Fatal and Non-Fatal Error Details323
- Fatal Errors323
- A-3-2 Non-Fatal Errors328
Connecting to the RS-232C Serial Port on the CPU Unit331
- A-4-1 RS-232C Port Specifications331
- A-4-2 Connection Examples332
- A-4-3 Applicable Connectors and Recommended Cables335
- A-4-4 Example of Recommended RS-232C Wiring336
- A-4-5 Wiring Connectors337
Installing the USB Driver340
- Load Short-Circuit Protection and Line Disconnection Detection for Basic I/O Units345
- Load Short-Circuit Protection and Line Disconnection Detection for CJ1W-OD202345
- A-6-2 Load Short-Circuit Protection for CJ1W-OD204/OD212/OD232/MD232347
- Relay Output Noise Reduction Methods349
- Revision History351

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