Name: Allen-Bradley MicroLogix 1400
Brand: Allen-Bradley
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Rockwell Automation Publication 1766-UM001I-EN-P - June 2015 51

Wire Your Controller Chapter 3

channel 0; switch 2 controls channel 1. The factory default setting for both

switch 1 and switch 2 is Current. Switch positions are shown below.

Ch0 Ch1

Current (ON) Default

Voltage (OFF)

Switch Location

Default Chapter3
- Firmware Revision History3
Summary of Changes3
- Table of Contents5
Preface13
- Purpose of this Manual13
  - Related Documentation14
- Who Should Use this Manual13
- Common Techniques Used in this Manual14
Chapter 115
- Hardware Features15
Hardware Overview15
- Component Descriptions16
  - Micrologix 1400 Memory Module and Built-In Real-Time Clock16
  - 1762 Expansion I/O17
- Communication Cables18
- Programming18
- Communication Options19
- Agency Certifications21
Chapter 221
- Compliance to European Union Directives21
  - EMC Directive21
  - Low Voltage Directive22
Install Your Controller21
- Installation Considerations22
- Safety Considerations23
- Power Considerations25
- Master Control Relay27
- Preventing Excessive Heat27
- Installing a Memory Module30
- Using the Battery31
  - Connecting the Battery Wire Connector32
- Controller and Expansion I/O Spacing33
- Controller Mounting Dimensions33
- Mounting the Controller34
  - DIN Rail Mounting35
  - Panel Mounting36
- 1762 Expansion I/O Dimensions37
- Mounting 1762 Expansion I/O37
  - DIN Rail Mounting37
  - Panel Mounting38
- Connecting Expansion I/O39
Chapter 3 Wiring Requirements41
- Wiring Recommendation41
- Wire Without Spade Lugs42
- Wire with Spade Lugs42
Wire Your Controller41
- Using Surge Suppressors43
  - Recommended Surge Suppressors44
- Grounding the Controller45
- Wiring Diagrams46
  - Terminal Block Layouts47
- Sinking and Sourcing Wiring Diagrams50
  - 1766-L32BWA, 1766-L32AWA, 1766-L32BXB, 1766-L32BWAA, 1766-L32AWAA, 1766-L32BXBA Wiring Diagrams50
- Controller I/O Wiring52
  - Minimizing Electrical Noise52
- Wiring Your Analog Channels53
- Expansion I/O Wiring56
  - Digital Wiring Diagrams56
  - Analog Wiring64
Chapter 473
Communication Connections73
- Supported Communication Protocols73
- Default Communication Configuration74
- Using the Communications Toggle Functionality74
  - Changing Communication Configuration75
- Connecting to the RS-232 Port77
- Connecting to a RS-485 Network84
- Connecting the AIC90
- Connecting to Ethernet97
  - Ethernet Connections98
Using the LCD99
Chapter 5 Using the LCD Operating Principles100
- Main Menu and Default Screen103
- Operating Buttons105
- Using Menus to Choose Values105
- Selecting between Menu Items105
- Cursor Display106
- Setting Values107
- Operating Principles100
- I/O Status107
  - Viewing I/O Status108
- Monitor User Defined Target Files109
  - Target User Defined File Number (TUF)109
  - Monitoring a Bit File110
  - Monitoring Integer Files114
  - Monitoring Double Integer Files119
  - Monitor Floating Point Files125
  - Monitor System Status Files125
- Using the Mode Switch126
  - Controller Modes127
  - Changing Mode Switch Position127
- Using a User Defined LCD Screen129
  - User Defined LCD Screen130
- Configuring Advanced Settings131
- Changing Key in Mode132
  - Key in Modes132
- Ethernet Network Configuration134
  - Viewing Ethernet Status134
  - Configuring the IP Address136
  - Configuring the Ethernet Port140
  - Configuring Ethernet Protocol Setup142
- Using Communications Toggle Functionality134
- Using Trim Pots145
  - Trim Pot Operation145
  - Changing Data Value of a Trim Pot146
  - Trim Pot Configuration in LCD Function File147
  - Error Conditions147
- Viewing System Information148
- Viewing Fault Code149
- Saving/Loading Communication EEPROM150
  - Saving Communication EEPROM150
  - Loading Communication EEPROM153
- LCD Setup153
  - Configuring Contrast Value154
  - Configuring the Backlight155
- Protocol Configuration156
  - Modbus RTU Slave Node Address156
Chapter 6161
- Operation at Power-Up and Entering a Run or Test Mode161
- Writing Data to the Real-Time Clock161
- RTC Battery Operation162
- Real-Time Clock Operation161
- Memory Module Operation162
Chapter 7 Editing User165
- A Download Is Required before Starting Online Editing165
- Types of Online Editing166
  - Edit Functions in Runtime Online Editing167
  - Edit Functions in Program Online Editing167
Appendix A169
- Specifications for Inputs169
- Working Voltage174
- Expansion I/O Specifications175
Appendix B189
- Lithium Battery (1747-BA)189
- Micrologix 1400 Replacement Kits189
Appendix C195
- Controller Status LED Indicators195
- Status Indicators on the LCD196
- I/O Status Indicators on the LCD197
- Normal Operation197
- Error Conditions197
- Understanding the Controller Status Indicators195
- Controller Error Recovery Model198
- Analog Expansion I/O Diagnostics and Troubleshooting200
- Calling Rockwell Automation for Assistance203
Appendix D205
- Install Controlflash Software205
- Prepare the Controller for Firmware Upgrade206
- Preparing for Firmware Upgrade205
- Using Controlflash for Firmware Upgrade207
- Controlflash Error Messages217
- Missing or Corrupt os State219
  - Recovering from Missing or Corrupt os State220
Appendix E221
- Communication Interface221
- DF1 Full-Duplex Protocol221
- DF1 Half-Duplex Protocol222
- Communication Protocol225
- Ascii233
- Distributed Network Protocol (DNP3)233
- Modbus Communication Protocol233
Appendix F Channel Configuration for DNP3 Slave235
- Channel 0 and Channel 2 Link Layer Configuration237
- Channel 1 Link Layer Configuration238
- DNP3 Slave Application Layer Configuration240
- Channel 0 and Channel 2 Link Layer Configuration Parameters242
- Channel 1(Ethernet) Link Layer Configuration Parameters246
- DNP3 Slave Application Layer Configuration Parameters251
Micrologix 1400 Distributed235
- DNP3 Slave Application Layer264
  - Function Codes265
  - Internal Indications270
- DNP3 Objects and Micrologix 1400 Data Files270
- DNP3 Device Attribute Object312
- Event Reporting315
- Collision Avoidance324
- Time Synchronization325
- Download a User Program Via DNP3 Network326
- Diagnostics334
  - Diagnostics for Ethernet Channel (Channel 1)340
  - Diagnostics for Secure Authentication347
- Function Codes349
- Implementation Table351
- Micrologix 1400 Controllers and Ethernet Communication365
Appendix G366
- Micrologix 1400 Performance Considerations366
- Micrologix 1400 and PC Connections to the Ethernet Network367
- Ethernet Connections370
- Duplicate IP Address Detection371
- Configuring the Ethernet Channel on the Micrologix 1400372
- Configuration Using Rslogix 500/Rslogix Micro Programming374
- Configuration Via BOOTP374
  - Using the Rockwell Automation BOOTP/DHCP Utility375
- Software374
- Using a DHCP Server to Configure Your Processor377
- Using Subnet Masks and Gateways378
  - Manually Configuring Channel 1 for Controllers on379
  - Subnets379
- Micrologix 1400 Embedded Web Server Capability379
- System Loading Calculations381
Appendix H System Loading Example Calculations382
- System Loading Worksheet383
  - Current Loading383
- Calculating Heat Dissipation385

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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes