Allen-Bradley ControlLogix User Manual
User Manual
Original Instructions
ControlLogix System
Catalog Numbers 1756-L61, 1756-L62, 1756-L63, 1756-L63XT, 1756-L64, 1756-L65, 1756-L71, 1756-L72, 1756-L73,
1756-L73XT, 1756-L74, 1756-L75, 1756-L72EROM, 1756-L73EROM
Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ControlLogix Controllers Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard ControlLogix Controllers . . . . . . . . . . . . . . . . . . . . . . . . . 10
Redundant ControlLogix Controllers . . . . . . . . . . . . . . . . . . . . . . . 11
Extreme Environment ControlLogix Controllers . . . . . . . . . . . . 11
Armor ControlLogix Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Required Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 1
Install the 1756-L7x Controller Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1756-L7x Controller Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Parts Included with the 1756-L7x Controller . . . . . . . . . . . . . . . . 19
Parts Available for Use with the 1756-L7x Controller . . . . . . . . 20
1756-L7x Controller Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Insert the Controller into the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Insert the Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Install the SD Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Remove the SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Install the ESM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Uninstall the ESM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 2
Install the 1756-L6x Controller Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1756-L6x Controller Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Parts Not Included with the 1756-L6x Controller. . . . . . . . . . . . 33
1756-L6x Controller Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CompactFlash Card Installation and Removal . . . . . . . . . . . . . . . . . . . 34
Battery Connection and Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Insert the Controller into the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Remove the Controller from the Chassis . . . . . . . . . . . . . . . . . . . . . . . . 42
Chapter 3
Start Using the Controller Make Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1756-L7x Connection Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
1756-L6x Connection Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Connect to the 1756-L7x Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Configure the USB Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Connect to the 1756-L6x Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Configure the Serial Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Upgrade Controller Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Determine Required Controller Firmware . . . . . . . . . . . . . . . . . . . 51
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Table of Contents
Obtain Controller Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Use ControlFLASH Software to Upgrade Firmware . . . . . . . . . 52
Use AutoFlash to Upgrade Firmware. . . . . . . . . . . . . . . . . . . . . . . . 57
Set the Communication Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Go Online with the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Download to the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Use the Who Active Dialog Box to Download . . . . . . . . . . . . . . . 62
Use the Controller Status Menu to Download . . . . . . . . . . . . . . . 63
Upload from the Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Use the Who Active Dialog Box to Upload . . . . . . . . . . . . . . . . . . 63
Use the Controller Status Menu to Upload . . . . . . . . . . . . . . . . . . 64
Choose the Controller Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . 65
Use the Mode Switch to Change the Operation Mode . . . . . . . . 65
Use Logix Designer to Change the Operation Mode. . . . . . . . . . 67
Load or Store to the Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Store to the Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Load from the Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Other Memory Card Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Use ControlLogix Energy Storage Modules (ESMs) . . . . . . . . . . . . . . 73
Save the Program to On-board NVS Memory . . . . . . . . . . . . . . . . 74
Clear the Program from On-board NVS Memory . . . . . . . . . . . . 74
Estimate the ESM Support of the WallClockTime . . . . . . . . . . . . . . . 75
Maintain the Battery (Only 1756-L6x Controllers) . . . . . . . . . . . . . . 75
Check the Battery Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
1756-BA1 or 1756-BATA Battery Life . . . . . . . . . . . . . . . . . . . . . . 76
1756-BATM Battery Module and Battery Life . . . . . . . . . . . . . . . 77
Estimate 1756-BA2 Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Estimate 1756-BA2 Battery Life After Warnings . . . . . . . . . . . . . 79
Battery Storage and Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Chapter 4
ControlLogix System and
Controllers
4 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
ControlLogix System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Design a ControlLogix System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
ControlLogix Controller Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
System, Communication, and Programming Features. . . . . . . . . 85
Memory Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Electronic Keying. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Table of Contents
Chapter 5
Communication Networks Networks Available. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
EtherNet/IP Network Communication. . . . . . . . . . . . . . . . . . . . . . . . . 90
ControlLogix EtherNet/IP Module Features . . . . . . . . . . . . . . . . 91
ControlLogix EtherNet/IP Communication Modules. . . . . . . . 91
Software for EtherNet/IP Networks . . . . . . . . . . . . . . . . . . . . . . . . 92
Connections Over an EtherNet/IP Network. . . . . . . . . . . . . . . . . 92
Double Data Rate (DDR) Backplane Communication . . . . . . . 92
ControlNet Network Communication . . . . . . . . . . . . . . . . . . . . . . . . . 93
ControlLogix ControlNet Module Features . . . . . . . . . . . . . . . . . 94
ControlLogix ControlNet Modules. . . . . . . . . . . . . . . . . . . . . . . . . 95
Software for ControlNet Networks . . . . . . . . . . . . . . . . . . . . . . . . . 95
Connections Over a ControlNet Network. . . . . . . . . . . . . . . . . . . 96
DeviceNet Network Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . 96
ControlLogix DeviceNet Module Features . . . . . . . . . . . . . . . . . . 97
ControlLogix DeviceNet Bridge Module and Linking Devices. 98
Software for DeviceNet Networks . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Connections Over DeviceNet Networks . . . . . . . . . . . . . . . . . . . . 98
ControlLogix DeviceNet Module Memory . . . . . . . . . . . . . . . . . . 98
Data Highway Plus (DH+) Network Communication . . . . . . . . . . . 99
Communicate Over a DH+ Network . . . . . . . . . . . . . . . . . . . . . . 100
Universal Remote I/O (RIO) Communication . . . . . . . . . . . . . . . . . 101
Communicate over a Universal Remote I/O Network . . . . . . . 102
Foundation Fieldbus Communication . . . . . . . . . . . . . . . . . . . . . . . . . 102
HART Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Serial Communication on
1756-L6x Controllers
Chapter 6
1756-L6x Controller Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
ControlLogix Chassis Serial Communication Options. . . . . . . 106
Communication with Serial Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
DF1 Master Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
DF1 Point to Point Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
DF1 Radio Modem Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
DF1 Radio Modem Advantages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
DF1 Radio Modem Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
DF1 Radio Modem Protocol Parameters . . . . . . . . . . . . . . . . . . . 109
DF1 Slave Protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
DH-485 Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Configure the 1756-L6x Controller for Serial Communication . . 112
Broadcast Messages Over a Serial Port. . . . . . . . . . . . . . . . . . . . . . . . . . 114
Configure Controller Serial Port Properties. . . . . . . . . . . . . . . . . 115
Program the Message Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Modbus Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
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Chapter 7
Manage Controller
Communication
Connection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Produce and Consume (Interlock) Data. . . . . . . . . . . . . . . . . . . . . . . . 118
Connection Requirements of a Produced or Consumed Tag . 118
Send and Receive Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Determine Whether to Cache Message Connections . . . . . . . . 120
Calculate Connection Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Local Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Remote Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Connections Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Chapter 8
I/O Modules Selecting ControlLogix I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Local I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Add Local I/O to the I/O Configuration . . . . . . . . . . . . . . . . . . . 126
Remote I/O Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Add Remote I/O to the I/O Configuration. . . . . . . . . . . . . . . . . 128
Distributed I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Add Distributed I/O to the I/O Configuration . . . . . . . . . . . . . 132
Reconfigure an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Reconfigure an I/O Module Via the Module Properties. . . . . . 135
Reconfigure an I/O Module Via a Message Instruction . . . . . . 136
Add to the I/O Configuration While Online . . . . . . . . . . . . . . . . . . . 136
Modules and Devices That Can Be Added While Online . . . . 137
Online Additions - ControlNet Considerations. . . . . . . . . . . . . 137
Online Additions—EtherNet/IP Considerations . . . . . . . . . . . 140
Determine When Data Is Updated . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Chapter 9
Develop Motion Applications Motion Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Motion Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Obtain Axis Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Program Motion Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
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Chapter 10
Develop Applications Elements of a Control Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Task Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Scheduled and Unscheduled Programs . . . . . . . . . . . . . . . . . . . . . 153
Routines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Parameters and Local Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Extended Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Access Extended Properties in Logic. . . . . . . . . . . . . . . . . . . . . . . . 156
Programming Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Add-On Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Access the Module Object. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Create the Add-On Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Monitoring Controller Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Monitoring I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Determine If I/O Communication Has Timed Out . . . . . . . . . 163
Determine If I/O Communication to a Specific I/O
Module Has Timed Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Interrupt the Execution of Logic and Execute the
Fault Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
System Overhead Time Slice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Configure the System Overhead Time Slice. . . . . . . . . . . . . . . . . 166
Sample Controller Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Chapter 11
Using the PhaseManager Tool PhaseManager Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Minimum System Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
State Model Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
How Equipment Changes States. . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Manually Change States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
PhaseManager Tool versus Other State Models . . . . . . . . . . . . . . . . . 174
Equipment Phase Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Chapter 12
Redundant Systems ControlLogix Redundancy Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 175
System Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
System Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Enhanced Versus Standard Redundancy . . . . . . . . . . . . . . . . . . . . 179
Build a Redundant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
ControlNet Considerations in Redundant Systems . . . . . . . . . . . . . 180
EtherNet/IP Considerations in Redundant Systems. . . . . . . . . . . . . 180
IP Address Swapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Redundancy and Scan Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
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Table of Contents
Appendix A
Troubleshoot the Module Use Logix Designer Application for Troubleshooting . . . . . . . . . . . 183
Fault Type Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
1756-L7x Controller Status Display and Indicators . . . . . . . . . . . . . 186
1756-L7x Controller Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
General Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Major Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
I/O Fault Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
1756-L7x Controller Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 194
RUN Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
FORCE Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
SD Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
OK Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
1756-L6x Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
RUN Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
I/O Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
FORCE Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
RS232 Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
BAT Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
OK Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
8 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Preface
This publication provides this information:
• Design and planning considerations
• Installation procedures
• Configuration procedures
• Maintenance and troubleshooting methods
This publication is designed for use by anyone responsible for planning and
implementing a ControlLogix® system:
• Application engineers
• Control engineers
• Instrumentation technicians
The contents of this publication are for anyone who already has an
understanding of Logix5000™ control systems, programming techniques, and
communication networks.
Summary of Changes
ControlLogix Controllers Overview
We’ve added the 1756-L72EROM and 1756-L73EROM Armor™
ControlLogix controllers to this user manual.
There are five types of ControlLogix controllers available. These types include
the following:
• Standard ControlLogix controllers
• Extreme environment ControlLogix controllers
• Armor ControlLogix controllers
• Standard GuardLogix® controllers
• Armor GuardLogix controllers
This manual explains how to use standard, extreme environment, and Armor
ControlLogix controllers.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 9
Preface
For detailed information about GuardLogix and Armor GuardLogix safety
controllers, see the following publications.
Resource Description
GuardLogix 5570 Controllers User Manual,
publication
GuardLogix 5570 and Compact GuardLogix 5370
Controller Systems Reference Manual, publication
1756-RM099
GuardLogix Controllers User Manual, publication
1756-UM020
GuardLogix Controller Systems Safety Reference
Manual, publication
GuardLogix Safety Application Instruction Set Safety
Reference Manual, publication
1756-UM022
1756-RM093
1756-RM095
Provides information on how to install, configure, and
operate GuardLogix 5570 controllers in Studio 5000®
projects, version 21 or later.
Provides information on how to meet safety application
requirements for GuardLogix 5570 controllers in
Studio 5000 projects, version 21 or later.
Provides information on how to install, configure, and
operate GuardLogix 5560 and GuardLogix 5570 controllers
in RSLogix 5000® projects, version 20 or earlier.
Provides information on how to meet safety application
requirements for GuardLogix 5560 and GuardLogix 5570
controllers in RSLogix 5000 projects, version 20 or earlier.
Provides programmers with details about the GuardLogix
safety application instruction set.
Standard ControlLogix Controllers
Two lines of standard ControlLogix controllers are now available. These
controllers are identified as 1756-L6x controllers and 1756-L7x controllers
according to abbreviations of their full catalog numbers.
Table 1 - ControlLogix Catalog Numbers
Abbreviated Cat. No. Cat. No.
1756-L6x 1756-L61, 1756-L62,1756-L63, 1756-L64,1756-L65
1756-L7x 1756-L71, 1756-L72, 1756-L73,1756-L74, 1756-L75
The standard ControlLogix controllers share many similar features, but also
have some differences. Table 2 provides a brief overview the differences
between the controllers. For further details about these features and
differences, see the appropriate chapters of this manual.
Table 2 - Differences between 1756-L7x and 1756-L6x Controllers
Feature 1756-L7x 1756-L6x
Clock support and backup used for
memory retention at powerdown
Communication ports (built-in) USB Serial
Connections, controller 500 250
Memory, nonvolatile Secure Digital (SD) card CompactFlash card
Status display and status indicators Scrolling status display and four
Unconnected buffer defaults 20 (40, max) 10 (40, max)
Energy Storage Module (ESM) Battery
Six status indicators
status indicators
For information on using ControlLogix controllers in SIL 2 applications, see
the Using ControlLogix in SIL 2 Applications Safety Reference Manual,
publication
10 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
1756-RM001.
Preface
Redundant ControlLogix Controllers
Certain ControlLogix controllers are also supported for use in redundant
systems. For more information about controllers and redundant systems, see
Chapter 12.
Extreme Environment ControlLogix Controllers
The extreme environment ControlLogix controllers, catalog numbers
1756-L73XT and 1756-L63XT, provide the same functionality as the 1756L73 and 1756-L63 controllers, but are designed to withstand temperatures
-25…+70 °C (-13…+158 °F).
Armor ControlLogix Controllers
The Armor ControlLogix controller combines a 1756-L72 or 1756-L73
ControlLogix controller with two EtherNet/IP DLR-capable 1756-EN3TR
communication modules in an IP67-rated housing for mounting on a machine.
For more information about the Armor ControlLogix controllers, catalog
numbers 1756-L72EROM and 1756-L73EROM, refer to the Armor
ControlLogix Controller Installation Instructions, publication
1756-IN061.
Though the 1756-L72EROM and 1756-L73EROM controllers have
functionality identical to that of the 1756-L72 and 1756-L73 controllers, the
Armor controller energy storage modules (ESM) cannot be removed or
replaced.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 11
Preface
Before You Begin
Before you begin using your ControlLogix controller, verify that you have the
applications that are required to configure and program the controller.
Required Software
Use Table 3 to identify the minimum software versions that are required to use
your ControlLogix controller.
Table 3 - Required Software for Controller Use
Cat. No. Studio 5000 Environment RSLogix 5000 Software RSLinx® Classic
1756-L61/A — Version 12.06.00 or later Any version
1756-L61/B — Version 13.04.00 or later
1756-L62/A — Version 12.06.00 or later
1756-L62/B — Version 13.04.00 or later
1756-L63/A — • If not using a CompactFlash
card, version 10.07.00 or
later
• If using a CompactFlash
card, version 11.16.00 or
later
1756-L63/B — Version 13.04.00 or later
1756-L63XT/B — Version 13.04.00 or later Version 2.55.00 or later
1756-L64/B — Version 16.03.00 or later Any version
1756-L65/B — Version 17.01.02 or later
1756-L71 Version 21.00.00 or later Version 20.01.02 Version 2.59.00 or later
1756-L72 Version 19.01.00 or later Version 2.57.00 or later
1756-L73
1756-L73XT
1756-L74
1756-L75
1756-L72EROM 2.59.02 or later
1756-L73EROM
12 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Preface
Additional Resources
These documents contain additional information concerning related products
from Rockwell Automation.
Resource Description
1756 ControlLogix and GuardLogix Controllers Technical
Data, publication
1756 ControlLogix I/O Specifications Technical Data,
publication
Armor ControlLogix Controllers Installation Instructions,
publication
ControlLogix Battery Module Installation Instructions,
publication
ControlLogix Chassis and Power Supply Installation
Instructions, publication
ControlLogix Analog I/O Modules User Manual,
publication
ControlLogix Configurable Flowmeter Module User
Manual, publication
ControlLogix Data Highway Plus-Remote I/O
Communication Interface Module User Manual,
publication
ControlLogix DH-485 Communication Module User
Manual, publication
ControlLogix Digital I/O Modules User Manual,
publication
ControlLogix Enhanced Redundancy System User
Manual, publication
ControlLogix HART Analog I/O Modules User Manual,
publication
ControlLogix High-speed Analog I/O Module User
Manual, publication
ControlLogix High-speed Counter Module User Manual,
publication
ControlLogix Low-speed Counter Module User Manual,
publication
ControlLogix Peer I/O Control Application Technique,
publication
ControlLogix Programmable Limit Switch Module User
Manual, publication
ControlLogix Redundancy System User Manual,
publication
ControlLogix Remote I/O Communication Module User
Manual, publication
ControlLogix SIL2 System Configuration Using RSLogix
5000 Subroutines Application Technique, publication
1756-AT010
ControlLogix SIL2 System Configuration Using SIL2
Add-On Instructions Application Technique, publication
1756-AT012
ControlLogix System Selection Guide, publication
1756-SG001
1756-TD001
1756-TD002
1756-IN061
1756-IN576
1756-IN005
1756-UM009
1756-UM010
1756-UM514
1756-UM532
1756-UM058
1756-UM535
1756-UM533
1756-UM005
1756-UM007
1756-UM536
1756-AT016
1756-UM002
1756-UM523
1756-UM534
Provides specifications for ControlLogix and GuardLogix
controllers.
Provides specifications for ControlLogix I/O modules.
Provides information about how to install the Armor
ControlLogix controllers.
Provides information for battery module installation.
Describes how to install and troubleshoot standard and
ControlLogix-XT™ versions of the 1756 chassis and
power supplies, including redundant power supplies.
Provides information about analog I/O module
configuration properties.
Provides information about configurable flowmeter
configuration properties.
Provides information about Data Highway Plus™
communication and remote I/O communication module
configuration properties.
Describes how to connect a 1756-DH485 module to a
DH-485 network with multiple controllers.
Provides information about digital I/O module
configuration properties.
Provides detailed information about ControlLogix
redundancy systems.
Describes how to use HART analog I/O modules.
Provides information about high-speed analog I/O
module configuration properties.
Provides information about high-speed counter-module
configuration properties.
Provides information about low-speed counter-module
configuration properties.
Describes typical peer control applications and provides
details about how to configure I/O modules for peer
control operation.
Provides information about programmable limit switch
configuration properties.
Provides information ControlLogix standard redundancy
systems.
Provides information for remote I/O network
communication configuration.
Provides information about ControlLogix SIL2- certified
fault-tolerant systems.
Provides information about ControlLogix SIL2- certified
fault-tolerant systems.
Describes how to design and select components for your
ControlLogix system.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 13
Preface
Resource Description
ControlNet Network Configuration User Manual,
publication
DeviceNet Network Configuration User Manual,
publication
Ethernet Design Considerations Reference Manual,
publication
EtherNet/IP and ControlNet to FOUNDATION Fieldbus
Linking Device User Manual, publication
EtherNet/IP Network Configuration User Manual,
publication
FOUNDATION Fieldbus Design Considerations Reference
Manual, publication
Guidelines for Handling Lithium Batteries Technical
Data, publication
Integrated Architecture and CIP Sync Configuration
Application Technique, publication
Integrated Motion on the EtherNet/IP Network
Configuration and Startup User Manual, publication
MOTION-UM003
Logix5000 Controllers Add-On Instructions
Programming Manual, publication
Logix5000 Controllers General Instructions Reference
Manual, publication
Logix5000 Controllers I/O and Tag Data Programming
Manual, publication
Logix5000 Controllers Major, Minor and I/O Faults
Programming Manual, publication
Logix5000 Controllers Messages Programming Manual,
publication
Logix5000 Controllers Motion Instructions Reference
Manual, publication
Logix5000 Controllers Nonvolatile Memory Card
Programming Manual, publication
Logix5000 Controllers Produced and Consumed Tags
Programming Manual, publication
Motion Coordinate System User Manual, publication
MOTION-UM002
PhaseManager™ User Manual, publication
UM001
SERCOS and Analog Motion Configuration and Startup
User Manual, publication
Using ControlLogix in SIL2 Applications Safety Reference
Manual, publication
Using Logix5000 Controllers as Masters or Slaves on
Modbus Application Solution, publication
CNET-UM001
DNET-UM004
ENET-RM002
1788-UM057
ENET-UM001
PROCES-RM005
AG-5.4
IA-AT003
1756-PM010
1756-RM003
1756-PM004
1756-PM014
1756-PM012
MOTION-RM002
1756-PM017
1756-PM011
LOGIX-
MOTION-UM001
1756-RM001
CIG-AP129
Describes how to use ControlNet modules.
Provides information about DeviceNet modules and
devices.
Provides additional information about network design
for your system.
Describes in detail how to use the available Foundation
Fieldbus devices.
Provides information about EtherNet/IP communication
modules.
Describes in detail how to use the available Foundation
Fieldbus devices.
Describes how to store, handle, transport, and dispose
of lithium batteries.
Describes how to configure CIP Sync with Integrated
Architecture® products and applications.
Details how to design your ControlLogix system for
Integrated Motion on the EtherNet/IP network
applications.
Describes in detail how to use add-on instructions.
Provides more information about GSV instructions, SSV
instructions, objects, and attributes.
Describes how to create and configure program tags for
optimal task and program execution.
Provides more information for I/O faults.
Provides information for controller messages.
Provides programmers with details about the motion
instructions that are available for a Logix5000 controller.
Provides information about changing the project that is
available to load from nonvolatile memory,
Provides more information for produced and consumed
tags.
Details how to create and configure a coordinated
motion application system.
Provides more information about instructions for use
with equipment phases.
Details how to configure a sercos motion application
system.
Provides specific configuration and programming
considerations.
Describes how to use Modbus sample programs.
14 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Preface
Resource Description
Industrial Automation Wiring and Grounding Guidelines
Application Data, publication 1770-4.1
Product Certifications website,
http://www.rockwellautomation.com/
rockwellautomation/certification/overview.page
Programmable Controllers Battery Reference,
http://www.ab.com/programmablecontrol/
batteries.html
Provides general guidelines to install a Rockwell
Automation industrial system.
Provides declarations of conformity, certificates, and
other certification details.
Provides Material Safety Data Sheets (MSDS) for
individual replacement batteries.
You can view or download publications at
http://www.rockwellautomation.com/literature/. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor or
Rockwell Automation sales representative.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 15
Preface
Notes:
16 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller
Topic Page
Before You Begin 19
1756-L7x Controller Parts 19
1756-L7x Controller Installation 20
Insert the Controller into the Chassis 21
Insert the Key 22
Install the SD Card 23
Remove the SD Card 25
Install the ESM 26
Uninstall the ESM 27
Chapter 1
ATTENTION: Personnel responsible for the application of safety-related programmable electronic systems (PES) shall be aware
of the safety requirements in the application of the system and shall be trained in using the system.
Table 4 - Environment and Enclosure
ATTENTION:
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications
(as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.
This equipment is not intended for use in residential environments and may not provide adequate protection to radio
communication services in such environments.
This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those
specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from
accessibility to live parts. The enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame,
complying with a flame spread rating of 5VA or be approved for the application if nonmetallic. The interior of the enclosure must be
accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific
enclosure type ratings that are required to comply with certain product safety certifications.
In addition to this publication, see the following:
• Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication
requirements
• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosure
1770-4.1, for additional installation
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 17
Chapter 1 Install the 1756-L7x Controller
Table 5 - North American Hazardous Location Approval
The following information applies when operating this equipment in
hazardous locations.
Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2
Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each product is
supplied with markings on the rating nameplate indicating the hazardous location
temperature code. When combining products within a system, the most adverse
temperature code (lowest "T" number) may be used to help determine the overall
temperature code of the system. Combinations of equipment in your system are subject
to investigation by the local Authority Having Jurisdiction at the time of installation.
WARNING: EXPLOSION HAZARD
• Do not disconnect equipment unless power has been removed or
the area is known to be nonhazardous.
• Do not disconnect connections to this equipment unless power
has been removed or the area is known to be nonhazardous.
Secure any external connections that mate to this equipment by
using screws, sliding latches, threaded connectors, or other
means provided with this product.
• Substitution of components may impair suitability for Class I,
Division 2.
• If this product contains batteries, they must only be changed in
an area known to be nonhazardous.
Informations sur l’utilisation de cet équipement en environnements
dangereux.
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu'à une utilisation en
environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux.
Chaque produit est livré avec des marquages sur sa plaque d'identification qui
indiquent le code de température pour les environnements dangereux. Lorsque
plusieurs produits sont combinés dans un système, le code de température le plus
défavorable (code de température le plus faible) peut être utilisé pour déterminer le
code de température global du système. Les combinaisons d'équipements dans le
système sont sujettes à inspection par les autorités locales qualifiées au moment de
l'installation.
WARNING: RISQUE D’EXPLOSION
• Couper le courant ou s'assurer que l'environnement est classé
non dangereux avant de débrancher l'équipement.
• Couper le courant ou s'assurer que l'environnement est classé
non dangereux avant de débrancher les connecteurs. Fixer tous
les connecteurs externes reliés à cet équipement à l'aide de vis,
loquets coulissants, connecteurs filetés ou autres moyens fournis
avec ce produit.
• La substitution de composants peut rendre cet équipement
inadapté à une utilisation en environnement de Classe I,
Division 2.
• S'assurer que l'environnement est classé non dangereux avant
de changer les piles.
Table 6 - European Hazardous Location Approval
The following applies when the product bears the Ex Marking.
This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC and has been found to comply with the Essential Health
and Safety Requirements relating to the design and construction of Category 3 equipment intended for use in Zone 2 potentially explosive atmospheres, given in Annex II to this
Directive.
Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079-15 and EN 60079-0.
ATTENTION: This equipment is not resistant to sunlight or other sources of UV radiation.
WARNING:
• This equipment shall be mounted in an ATEX certified enclosure with a minimum ingress protection rating of at least IP54
(as defined in IEC60529) and used in an environment of not more than Pollution Degree 2 (as defined in IEC 60664-1) when
applied in Zone 2 environments. The enclosure must utilize a tool removable cover or door.
• This equipment shall be used within its specified ratings defined by Rockwell Automation.
• This equipment must be used only with ATEX certified Rockwell Automation backplanes.
• Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other
means provided with this product.
• Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.
18 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller Chapter 1
Before You Begin
1756-L7x Controller Parts
See 1756-IN005 to install a ControlLogix® chassis and power supply before
you install your controller and power supply.
These sections describe parts that are included with the L7x controllers and
available accessory parts.
Parts Included with the 1756-L7x Controller
These parts are included with the controller:
• 1756-ESMCAP capacitor-based energy storage module (ESM)
• 1784-SD1 Secure Digital (SD) card, 1 GB
• 1747-KY controller key
Figure 1 - Parts with the 1756-L7x Controller
SD Card (installed)
1756-ESMCAP
(installed)
1747-KY Key
IMPORTANT The 1756-L7x controllers ship with an SD card installed. We recommend that
you leave the SD card installed.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 19
Chapter 1 Install the 1756-L7x Controller
Parts Available for Use with the 1756-L7x Controller
You can choose to use the parts included with the controller and these parts
specific to your application.
If your application requires Then use this part
USB connection from a computer to the controller USB cable
Nonvolatile memory 1784-SD1 (1 GB) or 1784-SD2 (2 GB)
ESM without WallClockTime back-up power 1756-ESMNSE
ESM that secures the controller by blocking the USB
connection and SD card use
This ESM provides your application an enhanced degree
of security.
(1) The USB port is intended only for temporary local programming purposes and not intended for permanent connection. The USB
cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
(2) For information about the hold-up time of the ESMs, see Estimate the ESM Support of the WallClockTime on page 75 and stored
energy depletion rate on page 27.
(2)
(1)
This ESM does not have WallClockTime back-up power.
Use this ESM if your application requires that the
installed ESM deplete its residual stored energy to 40 μJ
or less before transporting it into or out of your
application.
only a 1756-L73 (8 MB) or smaller memory-sized
controller.
1756-ESMNRM
(2)
Additionally, you can use this ESM with
1756-L7x Controller Installation
WARNING: Do not use the USB port in hazardous locations.
.
ATTENTION:
• The USB port is intended only for temporary local programming purposes
and not intended for permanent connection.
• The USB cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
These sections explain how to install the 1756-L7x controller. To install the
1756-L7x controller, complete the tasks summarized in this table.
Task Page
Insert the Controller into the Chassis 21
Insert the Key 22
Install the SD Card 23
Remove the SD Card 25
Install the ESM 26
20 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller Chapter 1
Insert the Controller into the Chassis
When installing a ControlLogix controller, you can do the following:
• Place the controller in any slot.
• Use multiple controllers in the same chassis.
You can install or remove a ControlLogix controller while chassis power is on
and the system is operating.
WARNING: When you insert or remove the module while backplane power
is on, an electrical arc can occur. This could cause an explosion in hazardous
location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Repeated electrical arcing causes excessive wear to contacts on both the
controller and its mating connector on the chassis. Worn contacts may create
electrical resistance that can affect controller operation.
Table 7 - Prevent Electrostatic Discharge
ATTENTION: This equipment is sensitive to electrostatic discharge, which
can cause internal damage and affect normal operation. Follow these
guidelines when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
IMPORTANT The ESM begins charging when one of these actions occurs:
• The controller and ESM are installed into a powered chassis.
• Power is applied to the chassis that contains a controller with the ESM
installed.
• An ESM is installed into a powered controller.
After power is applied, the ESM charges for up to two minutes as indicated
by CHRG or ESM Charging on the status display.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 21
Chapter 1 Install the 1756-L7x Controller
1. Align the circuit board with the top and bottom guides in the chassis.
Top Circuit Board
Aligned
Bottom Circuit Board
Aligned
31997-M
2. Slide the module into the chassis until it snaps into place.
3. Verify that the controller is flush with the power supply or other
installed modules.
Insert the Key
After you have inserted the controller into the chassis, reference the
Troubleshoot the Module on page 183 for information to interpret the status
indicators.
After the controller is installed, insert the key.
32001-M
22 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller Chapter 1
Install the SD Card
Complete these steps to install the SD card in the 1756-L7x controllers.
We recommend that you leave the SD card in the controller, even when it is not
used. If the controller experiences a major nonrecoverable fault, fault
information is saved to the card.
WARNING: When you insert or remove the Secure Digital (SD) memory card
while power is on, an electrical arc can occur. This could cause an explosion in
hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
1. Verify that the SD card is locked or unlocked according to your
preference.
Unlocked
Locked
For more information about the lock/unlock memory settings, see the
Load or Store to the Memory Card on page 68.
2. Open the door for the SD card.
RU
N
FO
RCE
S
D
O
K
3. Insert the SD card into the SD card slot.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 23
Chapter 1 Install the 1756-L7x Controller
4. Gently press the card until it clicks into place.
5. Close the SD card door.
Log
ix 55
xx
RUN
FORCE
SD
OK
24 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller Chapter 1
Remove the SD Card
The 1756-L7x controller ships with an SD card installed. Complete these steps
to remove the SD card from the 1756-L7x controller.
WARNING: When you insert or remove the Secure Digital (SD) memory card
while power is on, an electrical arc can occur. This could cause an explosion in
hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
IMPORTANT • Verify that the SD card status indicator is off and that the card is not in
use before removing it.
• We recommend that you do the following:
– Leave an SD card installed.
– Use the SD cards available from Rockwell Automation
(catalog number 1784-SD1 or 1784-SD2).
• While other SD cards can be used with the controller,
Rockwell Automation has not tested the use of those cards with the
controller. If you use an SD card other than those cards that are available
from Rockwell Automation, you can experience data corruption or loss.
• Also, SD cards that are not provided by Rockwell Automation do not have
the same industrial, environmental, and certification ratings as those
cards that are available from Rockwell Automation.
1. Verify that the SD card is not in use by checking to be sure that the
SD indicator is Off.
TIP You can also put the controller into Hard Run mode to keep the controller
from writing to the SD card while it is removed.
2. Open the door to access the SD card.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 25
Chapter 1 Install the 1756-L7x Controller
3. Press and release the SD card to eject it.
4. Remove the SD card and close the door.
Install the ESM
To install an ESM in the 1756-L7x controller, complete these steps.
ATTENTION: To avoid potential damage to the product when inserting the
ESM, align it in the track and slide forward with minimal force until the ESM
snaps into place.
1. Align the tongue-and-groove slots of the ESM and controller.
2. Slide the ESM back until it snaps into place.
The ESM begins charging after installation. The following status
messages indicate charging status:
•ESM Charging
•CHRG
26 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Uninstall the ESM
Install the 1756-L7x Controller Chapter 1
After you install the ESM, it can take up to 15 seconds for the charging
status messages to display.
.
IMPORTANT Allow the ESM to finish charging before removing power from the controller.
Failure to do so can result in the loss of the application program. A type 1,
code 40 major fault is logged on powerup.
To verify that the ESM is fully charged, check the status display to confirm
that messages CHRG or ESM charging are no longer indicated.
TIP We recommend that you check the WallClockTime object attributes after
installing an ESM to verify that time of the controller is correct.
The ESM contains a real-time clock. If the ESM is new or came from another
controller, the WallClockTime object attributes for your controller can
change.
WARNING: If your application requires the ESM to deplete its residual stored
energy to 40 μJ or less before you transport it into or out of the application,
use only the 1756-(SP)ESMNSE(XT) module. In this case, complete these
steps before you remove the ESM.
• Turn power off to the chassis.
After you turn power off to the chassis, the controller’s OK status indicator
transitions from green to solid red to OFF.
• Wait at least 20 minutes for the residual stored energy to decrease to
40 μJ or less before you remove the ESM.
There is no visual indication of when the 20 minutes has expired. You must
track that time period.
WARNING: When you insert or remove the energy storage module while
backplane power is on, an electrical arc can occur. This could cause an
explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Repeated electrical arcing causes excessive wear to contacts on both the module
and its mating connector.
IMPORTANT Before you remove an ESM, make necessary adjustments to your program to
account for potential changes to the WallClockTime attribute.
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 27
Chapter 1 Install the 1756-L7x Controller
Consider these points before removing the ESM:
• The following ESM modules can be currently installed in your
1756-L7x or 1756-L7xXT controller:
– 1756-ESMCAP
– 1756-ESMNSE
– 1756-ESMCAPXT
– 1756-ESMNSEXT
• The 1756-L7x controllers come with the 1756-ESMCAP module
installed. The 1756-L7xXT extreme temperature controller ships with a
1756-ESMCAPXT module installed. For more information on how to
use a 1756-ESMNSE, 1756-ESMNRM, 1756-ESMNSEXT, or
1756-ESMNRMXT module, see
page 26.
• After the 1756-L7x or 1756-L7xXT controllers lose power, because the
chassis power is turned off or the controller has been removed from a
powered chassis, do not immediately remove the ESM.
Wait until the OK status indicator on the controller transitions from
Green to Solid Red to OFF before you remove the ESM.
• You can use the 1756-ESMNSE module with only a 1756-L73 (8 MB)
or smaller memory-sized controller.
• Use the 1756-ESMNSE module if your application requires that the
installed ESM deplete its residual stored energy to 40 μJ or less before
transporting it into or out of your application.
• Once it is installed, you cannot remove the 1756-ESMNRM or
1756-ESMNRMXT module from a 1756-L7x or 1756-L7xXT
controller.
• The Armor™ controller energy storage modules (ESM) cannot be
removed or replaced.
28 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
Install the 1756-L7x Controller Chapter 1
Complete these steps to remove an ESM module from the controller.
1. Remove the key from the mode switch.
IMPORTANT The next step depends on which of the following conditions applies to your
application.
• If you are removing the ESM from a powered 1756-L7x controller, go to
step 2.
• If you are removing the ESM from a 1756-L7x controller that is not
powered, because the chassis power is turned off or the controller has
been removed from a powered chassis, do not immediately remove
the ESM.
Wait until the OK status indicator on the controller transitions from Green to
Solid Red to OFF before you remove the ESM.
After the OK status indicator transitions to Off, go to
step 2.
2. Use your thumb to press down on the black release and pull the ESM
away from the controller.
Log
ix 55
xx
RUN
FORCE
SD
OK
Rockwell Automation Publication 1756-UM001P-EN-P - May 2017 29
Chapter 1 Install the 1756-L7x Controller
Notes:
30 Rockwell Automation Publication 1756-UM001P-EN-P - May 2017
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