Name: Rockwell Automation Allen-Bradley 1756-EN2F
Brand: Rockwell Automation
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16 Rockwell Automation Publication 1756-UM004D-EN-P - August 2022

Chapter 1 ControlLogix EtherNet/IP Network Device Overview

How to Determine if the Module is in Explicit Protected Mode

To determine if your module is in explicit protected mode, either view the AOP

Module information page, or create a Generic CIP message. Set the following

parameters:

• Service Type: Get Single Attribute

•Class = 1

• Instance = 1

• Attribute = 13(Hex)

The Destination Element Tag must be the INT type. Bit 3 is explicit protected

mode and a value of 1 indicates that protected mode is enabled.

Table of Contents3
Preface5
About this Publication5
Conventions5
Download Firmware, AOP, EDS, and Other Files5
Summary of Changes5
Additional Resources6
Overview7
Controllogix Network Device Features8
Ethernet/Ip Network Specifications9
Ethernet/Ip Network11
1756-EN4TR Device Properties Information12
Simple Network Management Protocol12
Disable SNMP12
Electronic Keying13
Protected Mode14
Enabling Explicit Protected Mode14
Disabling Explicit Protected Mode14
Protected Mode in a Redundant Adapter Pair15
Enabling Explicit Protected Mode in a15
Redundant Adapter Pair (RAP)15
Disabling Explicit Protected Mode in a Redundant Adapter Pair15
How to Determine if the Module Is in Explicit Protected Mode16
Secure Digital Card17
Disable Secure Digital Card18
CIP Security19
Syslog Event Logging20
Parallel Redundancy Protocol20
Device Level Ring (DLR)21
Set the IP Address23
Requirements23
Set the IP Address with Rotary Switches24
1756-EN4TR Mode Rotary Switch25
Other Methods to Set the Address25
Reset the Module to Factory Default Value25
Redundant Adapter Considerations Setting the IP Address26
Redundant Design Considerations27
Redundant System Components28
Redundant Switchovers28
Switchover Considerations28
Status Display Codes29
Configure a 1756-EN4TR Redundant Adapter Pair30
Redundant Architecture35
Redundant Architecture Network Considerations37
PRP Architecture with Redbox Switches39
PRP Architecture Without Redbox Switches40
Security Options41
MSG Instruction41
Configure the MSG Communication Path41
Disable/Enable an Ethernet Port43
Disable/Enable an Ethernet Port with Factorytalk Linx Network43
Browser43
Disable/Enable an Ethernet Port on the Port Configuration Tab44
Disable an Ethernet Port with a MSG Instruction45
Disable the CIP Security Ports46
Disable the CIP Security Ports with Factorytalk Linx Network46
Browser46
Disable the CIP Security Ports with a MSG Instruction47
Disable/Enable LLDP49
Disable the USB Port50
Disable/Enable the SD Card51
Disable/Enable the SD Card on the Module Properties Dialog51
Disable/Enable the SD Card with a MSG Instruction52
Disable/Enable the 4-Character Status Display53
Disable/Enable All Categories of Messages53
Disable/Enable Individual Categories of Messages54
Disable/Enable the 1756-EN4TR Webpages56
Use a CIP Generic MSG to Disable the Webpages56
Use a CIP Generic MSG to Enable the Webpages57
Disable/Enable Simple Network Management Protocol (SNMP)58
Use a CIP Generic MSG to Disable SNMP58
Use a CIP Generic MSG to Enable SNMP59
Disable the Socket Object60
Disable the Email Object60
Controllogix Network Device Status Indicators61
Status Indicators61
Single-Port Module Status Indicators63
Dual-Port Module Status Indicators64
Diagnostic Web Pages66
Access the Diagnostic Web66
Index67

Brand	Rockwell Automation
Model	Allen-Bradley 1756-EN2F
Category	Network Hardware
Language	English

Rockwell Automation Allen-Bradley 1756-EN2F User Manual

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