Rockwell Automation Allen-Bradley MicroLogix 1400

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186 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021

Appendix E Connect to Networks via RS-232/RS-485 Interface

Notes:

Main Page

Table of Contents3
Preface11
About this Publication11
Purpose of this Manual11
Download Firmware, AOP, EDS, and Other Files11
Summary of Changes11
Additional Resources11
Hardware Overview13
Hardware Features13
Component Descriptions14
Micrologix 1400 Memory Module and Built-In Real-Time Clock14
1762 Expansion I/O15
Communication Cables15
Programming16
Firmware Revision History16
Communication Options17
Install Your Controller19
Installation Considerations19
Safety Considerations20
Hazardous Location Considerations20
Disconnect Main Power20
Safety Circuits21
Power Distribution21
Periodic Tests of Master Control Relay Circuit21
Power Considerations21
Isolation Transformers21
Power Supply Inrush21
Loss of Power Source22
Input States on Power down22
Other Types of Line Conditions22
Prevent Excessive Heat22
Master Control Relay23
Emergency-Stop Switches23
Install a Memory Module25
Use the Battery26
Connect the Battery Wire Connector26
Controller Mounting Dimensions27
Controller and Expansion I/O Spacing27
Mount the Controller28
DIN Rail Mounting28
Panel Mounting29
1762 Expansion I/O Dimensions30
Mount 1762 Expansion I/O30
DIN Rail Mounting30
Panel Mounting31
Connect Expansion I/O31
Wiring Requirements33
Wiring Recommendation33
Wire Without Spade Lugs34
Wire with Spade Lugs34
Use Surge Suppressors34
Recommended Surge Suppressors36
Ground the Controller36
Wiring Diagrams37
Terminal Block Layouts38
Sinking and Sourcing Wiring Diagrams40
1766-L32BWA, 1766-L32AWA, 1766-L32BXB, 1766-L32BWAA, 1766- L32AWAA, 1766-L32BXBA Wiring Diagrams40
Controller I/O Wiring42
Minimize Electrical Noise42
Wire Your Analog Channels43
Analog Channel Wiring Guidelines43
Minimize Electrical Noise on Analog Channels44
Ground Your Analog Cable44
Expansion I/O Wiring45
Digital Wiring Diagrams45
Analog Wiring51
Communication Connections57
Supported Communication Protocols57
Default Communication Configuration58
Use the Communications Toggle Functionality58
Change Communication Configuration59
Connect to the RS-232 Port60
Make a DF1 Point-To-Point Connection61
Modem61
Connect to a DF1 Half-Duplex Network63
Connect to a RS-485 Network65
DH-485 Configuration Parameters65
Recommended Tools67
DH-485 Communication Cable67
Connect the Communication Cable to the DH-485 Connector67
Ground and Terminate the DH-485 Network68
Connect the AIC69
Cable Selection Guide70
Recommended User-Supplied Components71
Install and Attach the AIC72
Power the AIC73
Connect to Ethernet74
Ethernet Connections74
LCD and Keypad75
Operating Principles76
Startup Screen76
Main Menu and Default Screen77
Operating Buttons79
Select between Menu Items79
Cursor Display80
Set Values80
I/O Status80
View I/O Status81
Monitor User Defined Target Files82
Target User Defined File Number (TUF)82
Monitor a Bit File83
Monitor Integer Files85
Monitor Double Integer Files89
Monitor Floating Point Files93
Monitor System Status Files94
Mode Switch94
Controller Modes94
Change Mode Switch Position95
User-Defined LCD Screen96
Configure Advanced Settings97
Change Key in Mode98
Key in Modes98
Communications Toggle Functionality99
Ethernet Network Configuration99
View Ethernet Status99
Configure the IP Address101
Configure the Ethernet Port103
Configure Ethernet Protocol Setup105
Trim Pots107
Trim Pot Operation107
Change Data Value of a Trim Pot107
Trim Pot Configuration in LCD Function File109
Error Conditions109
View System Information109
View Fault Code110
Save or Load Communication EEPROM111
Save Communication EEPROM111
Load Communication EEPROM112
LCD Setup113
Configure Contrast Value113
Configure the Back Light114
Protocol Configuration115
Modbus RTU Slave Node Address115
LCD Password Setup117
Set the LCD Password117
Activate the LCD Password118
Deactivate the LCD Password119
Change LCD Password120
Real-Time Clock Operation123
Operation at Power-Up and Entering a Run or Test Mode123
Write Data to the Real-Time Clock123
RTC Battery Operation123
Memory Module Operation124
User Program, User Data, Datalog, and Recipe Back-Up124
Program Compare125
Data File Download Protection125
Memory Module Write Protection125
Removal/Insertion under Power125
Memory Module Information File125
Program /Data Download125
Program /Data Upload126
Overview of Online Editing127
Online Editing Terms128
Effects of Online Editing on Your System128
System Impacts128
Data Table File Size128
Online Edit Error129
Directions and Cautions for Micrologix 1400 Online Editing User129
A Download Is Required before Starting Online Editing129
Types of Online Editing130
Edit Functions in Runtime Online Editing130
Edit Functions in Program Online Editing130
Automatic Controller Recovery131
Enable the Status Bit131
Expansion I/O Specifications138
Analog Modules143
Micrologix 1400 Replacement Kits149
Lithium Battery (1747-BA)149
Installation149
Battery Handling150
Storage150
Transportation150
Disposal151
Understand the Controller Status Indicators153
Controller Status Indicators153
Status Indicators on the LCD154
I/O Status Indicators on the LCD154
Normal Operation155
Error Conditions155
Controller Error Recovery Model155
Analog Expansion I/O Diagnostics and Troubleshooting156
Module Operation and Channel Operation156
Power-Up Diagnostics157
Critical and Non-Critical Errors157
Module Error Definition Table157
Error Codes158
Contact Rockwell Automation for Assistance159
Prepare for Firmware Update161
Install Controlflash Software161
Use DMK Extraction Tool for Firmware Update161
Prepare the Controller for Firmware Update163
Use Controlflash for Firmware Update164
Controlflash Error Messages171
Missing or Corrupt os State172
Recover from Missing or Corrupt os State173
Communication Interface175
DF1 Full-Duplex Protocol176
DF1 Half-Duplex Protocol176
DF1 Half-Duplex Operation176
Drop Link177
Using Modems with Micrologix Programmable Controllers178
Communication Protocol179
DH-485 Configuration Parameters179
Devices that Use the DH-485 Network179
Important DH-485 Network Planning Considerations180
Example DH-485 Connections183
Modbus Communication Protocol185
Ascii185
Distributed Network Protocol (DNP3)185
Disable Serial Channels 0 and 2185
Channel Configuration for DNP3 Slave187
Channel 0 and Channel 2 Link Layer Configuration188
Channel 1 Link Layer Configuration189
DNP3 Slave Application Layer Configuration190
Channel 0 and Channel 2 Link Layer Configuration Parameters191
Channel 1 (Ethernet) Link Layer Configuration Parameters194
DNP3 Slave Application Layer Configuration Parameters198
DNP3 Slave Application Layer209
Function Codes209
Internal Indications213
DNP3 Objects and Controller Data Files213
DNP3 Data Files215
DNP3 Configuration Files216
DNP3 Binary Input Object220
DNP3 Binary Output Object221
DNP3 Double Bit Binary Input Object223
DNP3 Counter Object225
DNP3 Frozen Counter Object227
DNP3 Analog Input Object229
DNP3 Analog Output Object232
DNP3 BCD Object233
DNP3 Data-Set Object234
Object Quality Flags242
DNP3 Device Attribute Object245
Event Reporting247
Generate Events247
DNP3 10K Event Logging250
Control Generating Event251
Report Event by Polled Response252
Report Event by Unsolicited Response252
Collision Avoidance254
Time Synchronization254
Download a User Program Via DNP3 Network255
Default Directories and Files256
Generating *.IMG Files Using Rslogix 500/Rslogix Micro256
Rules for File Authentication258
Rules for Downloading a User Program258
Rules for Uploading a User Program259
Rules for Initializing a User Program260
Rules for Uploading Communication Status Files260
Start and Stop User Programs (Mode Change) Via DNP3 Network260
Initialize User Program261
Start User Program261
Stop User Program261
Diagnostics262
Diagnostics for Ethernet Channel (Channel 1)266
Diagnostics for Secure Authentication270
Function Codes271
Implementation Table273
Micrologix 1400 Controllers and Ethernet Communication281
Micrologix 1400 Performance Considerations282
Ethernet Network282
Connecting an Ethernet Switch on the Ethernet Network283
Cables283
Ethernet Connections285
Duplicate IP Address Detection285
Configure the Ethernet Channel on the Micrologix 1400286
Configure Using Rslogix 500/Rslogix Micro Programming Software287
Configure Using BOOTP287
Using the Rockwell Automation BOOTP/DHCP Utility288
Use a DHCP Server to Configure Your Processor290
Subnet Masks and Gateways290
Manually Configure Channel 1 for Controllers on Subnets291
Micrologix 1400 Embedded Web Server Capability291
Disable the Ethernet Channel292
System Loading Calculations293
System Loading Example Calculations293
System Loading Worksheet294
Current Loading295
Calculating Heat Dissipation296
Glossary297
Index303

Rockwell Automation Allen-Bradley MicroLogix 1400 - Page 186

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