Rockwell Automation Allen-Bradley EtherNet/IP User Manual

User Manual

Original Instructions

EtherNet/IP Network Devices

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

Table of Contents

EtherNet/IP Features in Allen­Bradley Network Devices

Configure a Workstation to
Operate on an EtherNet/IP
Network

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chapter 1

EtherNet/IP Device-Specific Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Duplicate IP Address Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Duplicate IP Address Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

IP Address Swapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DNS Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Socket Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Linear Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Device Level Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Parallel Redundancy Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

EtherNet/IP Network Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 2

Configure the Ethernet Communication Driver in RSLinx Classic

Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Configure the USB Communication Driver in RSLinx Classic Software
21

Chapter 3

Set an IP Address Set the IP Address with the BOOTP/DHCP Utility . . . . . . . . . . . . . 25

Disable BOOTP/DHCP with RSLinx Classic Software . . . . . . 28

DHCP Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Set the IP Address with RSLinx Classic Software. . . . . . . . . . . . . . . . . 30

Configure Port Settings with RSLinx Classic Software. . . . . . . . 32

Set the IP Address with Studio 5000 Logix Designer Application. . 34

Reset the IP Address to Factory Default Value . . . . . . . . . . . . . . . . . . . 35

Chapter 4

Configure the Device Add the Device to the Controller Organizer . . . . . . . . . . . . . . . . . . . . . 37

Configure EtherNet/IP Communication. . . . . . . . . . . . . . . . . . . . . . . . 38

Produced and Consumed Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Message Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 3

Table of Contents

Chapter 5

Send Email EtherNet/IP Communication Module as an Email Client . . . . . . . . 41

Send Email Via a Controller-initiated Message Instruction. . . . . . . . 43

Create String Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Enter the Ladder Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Configure the MSG Instruction That Identifies the Mail Relay

Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Configure the MSG Instruction That Contains the Email Text 50

Configure the Email Object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Possible Email Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

4 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Preface

This manual describes how to use EtherNet/IP communication modules in
Logix 5000™ control systems.

Make sure that you are familiar with the following:

• Use of a controller in a Logix 5000 control system, including these
following controllers:

– CompactLogix™ 5380 controllers
– Compact GuardLogix® 5380 controllers
– CompactLogix 5480 controller
– ControlLogix® 5580 controllers
– GuardLogix® 5580 controllers

• Use of an EtherNet/IP network

• Use of various software applications from Rockwell Automation

Additional Resources

These documents contain more information concerning related products from
Rockwell Automation.

Table 1 - Additional Resources

Resource Description

EtherNet/IP Media Planning and
Installation Manual

Ethernet Design Considerations Reference
Manual, publication ENET-RM002

EtherNet/IP Socket Interface Application
Technique, publication ENET-AT002

EtherNet/IP Embedded Switch Technology
Application Guide, publication ENET-AP005

EtherNet/IP Parallel Redundancy Protocol
Application Technique,
publication ENET-AT006

Integrated Architecture and CIP Sync
Configuration Application Technique,
publication IA-AT003

Integrated Motion on the EtherNet/IP
Network Reference Manual, publication

MOTION-RM003

Electronic Keying in Logix 5000 Control
Systems Application Technique,
publication LOGI X-AT0 01

Describes how to use the required media components and how to
plan for, install, verify, troubleshoot, and certify your EtherNet/IP
network.

This manual is available from the Open DeviceNet Vendor Association
(ODVA) at: http://www.odva.org.

Describes basic Ethernet concepts:

Describes the socket interface that you can use to program MSG
instructions to communicate bet ween a Logix 5000™ controller and
Ethernet devices. In this case, the interface is used because the
Ethernet devices that do not support the EtherNet/IP application
protocol. Such devices include barcode scanners, RFID readers, or
other standard Ethernet devices.

Describes how to install, configure, and maintain linear and Device
Level Ring (DLR) networks by using Rockwell Automation® EtherNet/
IP devices that are equipped with embedded switch technology.

Describes how you can configure a Parallel Redundancy Protocol
(PRP) network with the 1756-EN2TP EtherNet/IP communication
module and a Stratix® 5400 or 5410 switch.

Provides information on CIP Sync and the IEEE 1588-2008 Precision
Time Protocol.

Reference descriptions of the AXIS_CIP_DRIVE attributes and the
Studio 5000 Logix Designer® application Control Modes and Methods

Describes how to use electronic keying in Logix 5000 control system
applications.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 5

Preface

Table 1 - Additional Resources

Resource Description

Network Technology webpage,

http://www.rockwellautomation.com/
rockwellautomation/products­technologies/network-technology/
overview.page?

Industrial Automation Wiring and
Grounding Guidelines, publication

1770-4.1

Product Certifications website,

http://www.rockwellautomation.com/
rockwellautomation/certification/
overview.page

Provides information on reference architectures and white papers on
networking.

Provides general guidelines for installing a Rockwell Automation®
industrial system.

Provides declarations of conformity, certificates, and other
certification details.

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.

6 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Chapter 1

EtherNet/IP Features in Allen-Bradley Network
Devices

Top ic Pag e

EtherNet/IP Device-Specific Features 8

Duplicate IP Address Detection 10

IP Address Swapping 11

DNS Addressing 11

Socket Interface 12

Linear Network 12

Device Level Ring 13

Parallel Redundancy Protocol 14

EtherNet/IP Network Specifications 14

Time Synchronization 16

EtherNet/IP networks offer a comprehensive suite of messages and services for
many automation applications. This open network standard uses standard
Ethernet communication products to support real-time I/O messaging,
information exchange, and general messaging. Other features to all EtherNet/
IP network devices include the following:

• Support for messaging, produced/consumed tags, and distributed I/O

• DNS addressing

• Internet Group Management Protocol (IGMP) snooping (enabled by
default) and querier (disabled by default)

• Port configuration and diagnostics

•Email server

EtherNet/IP networks also support CIP Safety applications. Such support
makes the simultaneous transmission of safety and standard control data and
diagnostics information over a common network possible.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 7

Chapter 1 EtherNet/IP Features in Allen-Bradley Network Devices

EtherNet/IP Device-Specific Features

EtherNet/IP network devices can provide the following functionality. See the
user manual for your device for details.

• Support for the following communication rates:

– 10 Mbps
– 100 Mbps
–1 Gbps

IMPORTANT • When a device uses the 1 Gbps network communication rate, it

supports only full-duplex mode.

• When a device uses the 10 Mbps or 100 Mbps network
communication rate, it supports full-duplex and half-duplex
mode.

•Linear network

•Device Level Ring protocol

• Option to operate as a Ring supervisor on a DLR network

• Parallel Redundancy Protocol

• Duplicate IP address detection

• Socket interface

• Email client

8 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

EtherNet/IP Features in Allen-Bradley Network Devices Chapter 1

FWD

ENET LINK

EtherNet/IP

RUN PROG

REM

Logix5585E

NET

LINK

SAFETY ON

RUN PROG

REM

Logix5584ES

NET

LINK

2

1

NETLNK2 OKLNK1

02

0

1734-AENTR

Module
Status

Network
Activity

Network
Status

Point Bus
Status

System
Power

Field
Power

POINT I O

Link 1
Activity/
Status

Link 2
Activity/
Status

IP ADDRESS

DC INPUT

5069-IB16

DC OUTPUT

5069-OB16

ANALOG INPUT

5069-IY4

ANALOG OUTPUT

5069-OF8

SA Power

MOD Power

ANALOG OUTPUT

5069-OF8

DC INPUT

5069-IB16

DC OUTPUT

5069-OB16

ANALOG INPUT

5069-IY4

ANALOG OUTPUT

5069-OF8

COUNTER

5069-HSC2xOB4

Compact 5000™ I/O

02

0

1734-AENTR

Module
Status

Network
Activity

Network
Status

Point Bus
Status

System
Power

Field
Power

POINT I O

Link 1
Activity/
Status

Link 2
Activity/
Status

IP ADDRESS

DC INPUT

5069-IB16

DC OUTPUT

5069-OB16

ANALOG INPUT

5069-IY4

ANALOG OUTPUT

5069-OF8

SA Power

MOD Power

ANALOG OUTPUT

5069-OF8

DC INPUT

5069-IB16

DC OUTPUT

5069-OB16

ANALOG INPUT

5069-IY4

ANALOG OUTPUT

5069-OF8

COUNTER

5069-HSC2xOB4

Compact 5000™ I/O

Switch

Distributed I/O

ControlLogix® Controllers
ControlLogix I/O Modules

1794-AENT Adapter
FLEX™ I/O Modules

Work stat ion

PanelView™ 5500 Terminal

5069-L340ERM Controller
Compact 5000™ I/O Modules

Kinetix® 5700
Servo Drive

5069-L340ERM Controller
Compact 5000™ I/O Modules

Work stat ion

1783-ETAP

5069-AENTR Adapter
Compact 5000 I/O Modules

1734-AENTR Adapter
POINT I/O™ Modules

Star Topology

5094-AENTR Adapter
FLEX 5000™ I/O Modules

DLR Topology

PanelView™ 5500 Terminal

5094-AENTR Adapter
FLEX 5000™ I/O Modules

1734-AENTR
POINT I/O™ Modules

PowerFlex® 525
Drive

5069-AENTR Adapter
Compact 5000™ I/O
Modules

1756-EN4TR
1756 I/O Modules

Figure 1 shows how Rockwell Automation® EtherNet/IP network devices fit

into a control system. In this example, the following can occur over the
EtherNet/IP network:

• Controllers produce and consume tags

• Controllers initiate MSG instructions that send and receive data

• Control of I/O modules

• Use of Integrated Motion over an EtherNet/IP network

• Workstations configure devices, and upload or download projects to the
controllers

Figure 1 - EtherNet/IP Network Devices in a Control System

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 9

Chapter 1 EtherNet/IP Features in Allen-Bradley Network Devices

Duplicate IP Address Detection

Duplicate IP address detection verifies that an IP address does not match any
other device IP address on the network when you perform either of these tasks:

• Connect the device to a EtherNet/IP network.

• Change the IP address on the device.

If the IP address matches that of another device on the network, the
EtherNet/IP port on the device transitions to conflict mode. In conflict mode,
these conditions exist:

• OK status indicator blinks red.

• Network (NET) status indicator is solid red.

• If the device has a text display, the following message scrolls across the 4­character display:

<IP_address_of_this_device> Duplicate IP ­<MAC_address_of_duplicate_node_detected>

For example: 10.88.60.196 Duplicate IP - 00:00:BC:02:34:B4

Duplicate IP Address Resolution

This table describes how to resolve duplicate IP addresses.

Duplicate IP Address Detection Conditions Resolution Process

• Both devices support duplicate IP address detection

• Second device is added to the network after the first
device is operating on the network

• Both devices support duplicate IP address detection

• Both devices were powered up at approximately the
same time

One device supports duplicate IP address detection and a
second device does not

1. The device that began operation first uses the IP address and continues to operate without interruption.

2. The device that begins operation second detects the duplication and enters Conflict mode.

Both EtherNet/IP devices enter Conflict mode.
To resolve this conflict, follow these steps:

a. Assign a new IP address to one of the devices.
b. Cycle power to the other device or disconnect and reconnect all Ethernet cables from the other device.

1. Regardless of which device obtained the IP address first, the device that does not support IP address detection
uses the IP address and continues to operate without interruption.

2. The device that supports duplicate IP address detection detects the duplication and enters Conflict mode.

10 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

EtherNet/IP Features in Allen-Bradley Network Devices Chapter 1

DNS Addressing

To qualify the device address further, use DNS addressing to specify a host
name for a device. When you specify a host name for the device, you also
specify a domain name and DNS servers. DNS addressing makes it possible to
create similar network structures and IP address sequences under different
domains.

DNS addressing is necessary only if you refer to the device by host name, such
as in path descriptions in MSG instructions.

To use DNS addressing, follow these steps.

1. Assign a host name to the device.

A network administrator can assign a host name. Valid host names must
be IEC-1131-3 compliant.

2. Configure the device IP address:

In the DNS server, the host name must match the IP address of
the device.

IMPORTANT Make sure the DNS enable bit is set.

• If you use Logix Designer application, version 28 or later, to configure
your device, the enable bit is set and DNS addressing is successful.

• If you use RSLinx® Classic software, version 2.41.00 or later, to
configure your device, the enable bit is cleared and DNS addressing
fails.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 11

Chapter 1 EtherNet/IP Features in Allen-Bradley Network Devices

3. In the Logix Designer application, add the device to the I/O.

IMPORTANT If a child device resides in the same domain as its parent device, type the

host name. If the domain name of the child device differs from its parent
device, type the host name and the domain name (host.domain)

IMPORTANT You can also use DNS addressing in a device profile in the I/O

configuration tree or in a message path. If the domain name of the
destination device differs from the source device, use a fully qualified
DNS name (hostname.domainname). For example, to send a message
from AEN2TR1.location1.companyA to AEN2TR1.location2.company, the
host names match, but the domains differ. Without the entry of a fully
qualified DNS name, the device adds the default domain name to the
specified host name.

Socket Interface

Linear Network

Some EtherNet/IP devices support the use of a CIP Generic MSG instruction
to request socket services. For more information, see EtherNet/IP Socket
Interface Application Technique, ENET-AT002

.

A linear network is a collection of devices that are daisy-chained together. The
EtherNet/IP embedded switch technology lets you implement this topology at
the device level. No additional switches are required.

Figure 2 - Example Linear Network

00:00:BC:2E:69:F6

1 (Front)
2 (Rear)

U

V

W

2
1

The following are advantages of a linear network.

• Simple installation

• Reduced wiring and installation costs

• No special software configuration required

• Improved CIP Sync application performance on linear networks

The primary disadvantage of a linear network is that any break of the cable
disconnects all devices downstream from the break from the rest of the
network.

12 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

EtherNet/IP Features in Allen-Bradley Network Devices Chapter 1

Device Level Ring

Device Level Ring (DLR) is an EtherNet/IP protocol that is defined by the
Open DeviceNet® Vendors’ Association (ODVA). DLR provides a means to
detect, manage, and recover from single faults in a ring-based network.

A DLR network includes the following types of ring nodes.

Node Description

Ring supervisor A ring supervisor provides these functions:

Ring participants Ring participants provide these functions:

Redundant gateways
(option al)

• Manages traffic on the DLR network

• Collects diagnostic information for the network
A DLR network requires at least one node to be configured as ring supervisor.
IMPORTANT: By default, the supervisor function is disabled on supervisor-capable

devices, so they are ready to participate on a linear or star network or as a ring node on a
DLR network.

In a DLR network, you must configure at least one of the supervisor-capable devices as
the ring supervisor before physically connecting the ring. If you do not, the DLR network
does not work.

• Process data that is transmitted over the network.

• Pass on the data to the next node on the network.

• Report fault locations to the ac tive ring supervisor.
When a fault occurs on the DLR network, ring participants reconfigure themselves and

relearn the network topology.

Redundant gateways are multiple switches that are connected to one DLR network and
also connected together through the rest of the network.

Redundant gateways provide DLR network resiliency to the rest of the network.

Depending on their firmware capabilities, both devices and switches can
operate as supervisors or ring nodes on a DLR network. Only switches can
operate as redundant gateways.

For more information about DLR, see the EtherNet/IP Device Level Ring
Application Technique, publication ENET-AT007

.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 13

Chapter 1 EtherNet/IP Features in Allen-Bradley Network Devices

Parallel Redundancy Protocol

Parallel Redundancy Protocol (PRP) is defined in international standard
IEC 62439-3 and provides high-availability in Ethernet networks. PRP
technology creates seamless redundancy by sending duplicate frames to two
independent network infrastructures, which are known as LAN A and LAN B.

A PRP network includes the following components.

Component Description

LAN A and LAN B Redundant, active Ethernet networks that o perate in parallel.

Double attached node (DAN) An end device with PRP technology that connects to both LAN A and LAN B.

Single attached node (SAN) An end device without PRP technology that connects to either LAN A or LAN B.

A SAN does not have PRP redundancy.

Redundancy box (RedBox) A switch with PRP technology that connects devices without PRP technology to

Virtual double attached node
(VDAN)

Infrastructure switch A switch that connects to either LAN A or LAN B and is not configured as a RedBox.

both LAN A and LAN B.

An end device without PRP technology that connects to both LAN A and LAN B
through a RedBox.

A VDAN has PRP redundancy and appears to other nodes in the network as a DAN.

For more information about PRP topologies and configuration guidelines, see
the EtherNet/IP Parallel Redundancy Protocol Application Technique,
publication ENET-AT006

.

EtherNet/IP Network Specifications

Table 2 - EtherNet/IP Network Specifications

Cat. No. Connections CIP Unconnected

TCP CIP I/O HMI and MSG

1734-AENT, 1734-AENTR 32 20 32 — 5000 900 No

1738-AENT, 1738-AENTR 32 20 32 — 5000 900 No

528

(3)

(3)

(3)

(3)

(4)

(3)

1756-ENBT 64 128

1756-EN2F, 1756-EN2T,
1756-EN2TXT, 1756-EN2TR,
1756-EN2TRXT

1756-EN2TSC 128 256

1756-EN3TR 128 256

1756-EN4TR, 1756-EN4TRXT 512 1000 I/O

1756-EWEB 64 128

1756-L81E 512 — — 100 — — —

1756-L82E 512 — — 175 — — —

128 256

Messages
(backplane +
Ethernet)

64 + 64 — 5000 900 Yes

128 + 128 — IMPORTANT: Packet rates

128 + 128 — 930 with encryption

128 + 128 — 2000 Yes

256+256 — • 50,000 without CIP

128 + 128 — — 900 Yes

Ethernet Node
Count, Max

Packet Rate Capacity (packets/second)

for ControlLogix EtherNet/IP
communication modules
depend on series and
firmware revision.

Security

• 25,000 with integrity

• 15,000 with integrity and
confidentiality

2000 Yes

1800 without
encryption

• 3,700 without CIP

•2,700 with integrity

• 1,700 with integrity

(5)

Security

and confidentiality

SNMP
Support
(password
required)

Yes

Yes

14 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

EtherNet/IP Features in Allen-Bradley Network Devices Chapter 1

Table 2 - EtherNet/IP Network Specifications (continued) (continued)

Cat. No. Connections CIP Unconnected

TCP CIP I/O HMI and MSG

Messages
(backplane +

Ethernet Node
Count, Max

Packet Rate Capacity (packets/second)

Ethernet)

1756-L83E 512 — — 250 — — —

1756-L84E 512 — — 250 — — —

1756-L85E 512 — — 300 — — —

1768-ENBT 32

(1)

(2)

64

1769-L3xE6432

1769-L16ER-BB1B, 1769-

120 256 256 4 6000 @ 500 bytes/packet 400 messages/s @ 20%

L18ER-BB1B, 1769-L18ERM-

64
128

(3)

(3)

32 + 32 — 5000 960 Yes

32 + 32 — 4000 760 Yes

comm. timeslice

BB1B

1769-L24ER-QB1B, 1769-

120 256 256 8 6000 @ 500 bytes/packet Yes

L24ER-QBFC1B

1769-L27ERM-QBFC1B 120 256 256 16 6000 @ 500 bytes/packet Yes

1769-L30ER, 1769-L30ERM,

120 256 256 16 6000 @ 500 bytes/packet Yes

1769-L30ER-NSE

1769-L33ER, 1769-L33ERM 120 256 256 32 6000 @ 500 bytes/packet Yes

1769-L36ERM 120 256 256 48 6000 @ 500 bytes/packet Yes

1783-ETAP, 1783-ETAP1F,

64 — — — — 900 No

1783-ETAP2F

1794-AENT 64 64 — — 9500 — Yes

5069-AENRT 32 16

16 — 100000 500 Yes

(messaging)

5069-AEN2TR 256

32 — 100000 2000 Yes

(messaging)

5094-AENTR, 5094-AENTRXT,
5094-AEN2TR, 5094-

32 16

(messaging)

16 — 100000 500 Yes

AEN2TRXT

5069-L306ER,

512 — 256 16 128000 2000 Yes

5069-L306ERM

5069-L310ER,

512 — 256 24 128000 2000 Yes
5069-L310ER-NSE,
5069-L310ERM

5069-L320ER,

512 — 256 40 128000 2000 Yes
5069-L320ERM

5069-L330ER,

512 — 256 60 128000 2000 Yes
5069-L330ERM

5069-L340ER,

512 — 256 90 128000 2000 Yes
5069-L340ERM

5069-L350ERM 512 — 256 120 128000 2000 Yes

5069-L380ERM 512 — 256 150 128000 2000 Yes

5069-L3100ERM 512 — 256 180 128000 2000 Yes

9300-ENA — — — — — — —

(1) The 1768-ENBT communication module supports 32 TCP connections with firmware revision 1.
(2) The 1768-ENBT communication module supports 64 TCP connections with firmware revision 2 or later.
(3) CIP connections can be used for all explicit or all implicit applications. For example, a 1756-ENBT module has a total of 128 CIP connections that can be used for any combination of connections.

(5)

SNMP
Support
(password
required)

Yes

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 15

Chapter 1 EtherNet/IP Features in Allen-Bradley Network Devices

(4) There are 1000 CIP I/O connections and 528 CIP messaging connections.
(5) Total packet rate capacity = I/O Produced Tag, max + HMI/MSG, max. Packet rates vary depending on packet size. For more detailed specifications, see the EDS file for a specific catalog number.

Reserve 10% of the bandwidth (packets/second) of the network device for
Explicit Messaging.

Time Synchronization

In certain situations, the I/O modules can synchronize with the adapter before
the adapter synchronizes with the system Grandmaster clock. This
synchronization occurrence leads to a time difference between the I/O and the
Grandmaster clock until the adapter synchronizes with the Grandmaster clock.

In your logic, verify that the adapter is synchronized with the Grandmaster
clock (CIPSyncValid) before you initiate time stamp requests or scheduled
outputs from your I/O modules. A system with intermediate devices, such as
network bridges and switches, can require that you insert a delay until the time
stabilizes in the system.

For information on how to verify that the adapter is synchronized to a
Grandmaster clock, see CIP Sync Diagnostics in the Integrated Architecture
and CIP Sync Configuration Application Technique, publication IA-AT003

.

This publication also includes information on Time Sync Object Attributes.

16 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Chapter 2

Configure a Workstation to Operate on an
EtherNet/IP Network

Top ic Pag e

Configure the Ethernet Communication Driver in RSLinx Classic Software 19

Configure the USB Communication Driver in RSLinx Classic Software 21

Before you can connect to the device via an Ethernet cable, you must install an
EtherNet/IP driver on your workstation.

A communication driver is required to complete these tasks:

• Upload and download Logix Designer application projects to
Logix 5000™ controllers over an EtherNet/IP network

• Collect controller data for electronic operator interfaces, for example,
PanelView™ Plus terminals, and visualization software, for example,

®

Factor yTalk

• Update device firmware

• Set or change the IP address.

• Configure the device

View software

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 17

Chapter 2 Configure a Workstation to Operate on an EtherNet/IP Network

Remember the following when you use the RSLinx® Classic software
communication drivers:

• EtherNet/IP driver:

– Supports runtime communications
– Requires that the workstation is properly connected to the

– Supports communications over longer distances when compared to

• Ethernet devices driver:

– Requires that you configure the IP addresses to which the software

•USB driver:

– Convenient method to connect to an unconfigured device and

– Convenient method to connect to a device when the Ethernet port

– Convenient method to update the device firmware
– Not intended for runtime connections; it is a temporary-use only

EtherNet/IP network

the USB driver

browses and, therefore, the devices with which the device
communicates

configure the Ethernet port

configuration is unknown

connection with a limited cabling distance

18 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Configure a Workstation to Operate on an EtherNet/IP Network Chapter 2

Configure the Ethernet Communication Driver in RSLinx Classic Software

Before you add an Ethernet driver, confirm that these conditions exist:

• The workstation is properly connected to the EtherNet/IP network.

• The workstation IP address and other network parameters are
configured correctly.

To configure the EtherNet/IP driver, follow these steps.

1. From the Communications menu, choose Configure Drivers.

The Configure Drivers dialog box appears.

2. From the Available Driver Types pull-down menu, choose
EtherNet/IP Driver.

3. Click Add New.

The Add New RSLinx® Driver dialog box appears.

4. Type a name for the new driver and click OK.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 19

Chapter 2 Configure a Workstation to Operate on an EtherNet/IP Network

The Configure driver dialog box appears.

5. Click Browse Local Subnet.

6. Select the desired driver, and click OK.

TIP To view devices on another subnet or VLAN from the workstation running

RSLinx Classic software, click Browse Remote Subnet.

The new driver is available on the Configure Drivers dialog box.

7. Click Close.

20 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Configure a Workstation to Operate on an EtherNet/IP Network Chapter 2

Configure the USB Communication Driver in RSLinx Classic Software

In RSLinx Classic software, version 3.80.00 or later, a USB driver
automatically appears in the software when you connect the USB cable from
your workstation to the controller.

The USB driver can take a moment to appear in RSLinx Classic software.

IMPORTANT EtherNet/IP drivers remain visible in RSLinx Classic software after they are

configured regardless of whether they are in use or not.

A USB driver appears in RSLinx Classic software only when a USB cable is
connected between the workstation and the controller.

Once the cable is disconnected, the driver disappears from RSLinx
Classic software.

ATT EN TI ON : The USB port is intended for temporary, local programming
purposes only and is not intended for permanent connection. The USB cable
is not to exceed 3.0 m (9.84 ft) and must not contain hubs.

WARNING: Do not use the USB port in hazardous locations.

IMPORTANT Do not simultaneously load firmware for multiple devices through a USB

port. If you do, one or more of the firmware loads can fail in the middle of
the loading process.

If you use the RSLinx Classic software, version 3.80.00 or later, and a USB
driver does not appear automatically, complete the following steps.

1. Connect one end of the USB cable to your workstation, and the other
end to the USB port on the device.

The RSLinx Found New Hardware Wizard dialog box appears.

2. Click Install the software automatically (recommended).

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 21

Chapter 2 Configure a Workstation to Operate on an EtherNet/IP Network

3. Click Next.

These dialog boxes appear consecutively.

4. Click Finish.

22 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Configure a Workstation to Operate on an EtherNet/IP Network Chapter 2

USB Port Driver

Virtual Chassis Driver

5. In RSLinx Classic software, from the Communications menu,
click RSWho.

The RSLinx Workstation organizer appears, and your device appears
under two different drivers, a virtual chassis and the USB port.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 23

Chapter 2 Configure a Workstation to Operate on an EtherNet/IP Network

Notes:

24 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Set an IP Address

Top ic Pag e

Set the IP Address with the BOOTP/DHCP Utility 25

Set the IP Address with RSLinx Classic Software 30

Set the IP Address with Studio 5000 Logix Designer Application 34

Reset the IP Address to Factory Default Value 35

Chapter 3

Set the IP Address with the BOOTP/DHCP Utility

The BOOTP/DHCP tool is a standalone server that you can use to set an IP
address. The BOOTP/DHCP tool sets an IP address and other Transport
Control Protocol (TCP) parameters.

You can use the BOOTP/DHCP tool to set the IP address when the device
powers up in the out-of-box state. That is, the rotary switches are not set to a
valid IP address, and the device is DHCP enabled.

Access the BOOTP/DHCP tool from one of these locations:

• Programs > Rockwell Software > BOOTP-DHCP Tool >
BOOTP-DHCP Tool

• Tools directory on the Studio 5000® environment installation CD

IMPORTANT Before you start the BOOTP/DHCP tool, remember the following:

• Make sure that you have the hardware (MAC) address of
the device.

The hardware address is on a sticker on the side of the device
and has a format similar to the following:

00-00-BC-14-55-35

• Make sure that the workstation that you use to set the IP address
has only one connection to the EtherNet/IP network on which
the device resides.

The BOOTP/DHCP tool can fail to work if your workstation has
multiple connections to the EtherNet/IP network.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 25

Chapter 3 Set an IP Address

To set the IP address with BOOTP/DHCP tool, complete the following steps.

1. Confirm that the device is connected to the network.

2. Start the BOOTP-DHCP tool.

The MAC ID of the device appears in the Request History window.

3. Select the appropriate device and click Add to Relation List.

The New Entry dialog box appears.

4. Type an IP address, Hostname, and Description for the device.

Hostname and Description are optional.

5. Click OK.

6. To assign this configuration on the device, wait for the device to appear
in the Relation List panel and select it.

26 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Set an IP Address Chapter 3

7. Click Disable BOOTP/DHCP.

The device now uses the assigned configuration and does not issue BOOTP or
DHCP requests after power is cycled on the controller.

IMPORTANT Remember the following:

• If you do not click Disable BOOTP/DHCP, on future power cycles, the
current IP configuration is cleared and the controller sends DHCP
requests again.

• If you click Disable BOOTP/DHCP and it does not disable BOOTP/DHCP,
you can use RSLinx® Classic software to disable BOOTP/DHCP.

For more information on how to use RSLinx Classic software to disable
BOOTP/DHCP, see page 28

.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 27

Chapter 3 Set an IP Address

Disable BOOTP/DHCP with RSLinx Classic Software

To disable BOOTP/DHCP in RSLinx Classic software, complete the
following steps.

1. Start RSLinx Classic software.

After several seconds, an RSWho dialog box appears.

2. If no RSWho dialog box appears, from the Communications pull-down
menu, choose RSWho.

3. Navigate to the device.

You can access the device via the USB or an EtherNet/IP driver.

4. Right-click on the device and choose Module Configuration.

5. Click the Port Configuration tab.

6. Click Manually configure IP settings.

28 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

7. Click OK.

Set an IP Address Chapter 3

DHCP Considerations

If the device is DHCP-enabled in the out-of-box condition, you can use a
DHCP server to set the IP address.

The DHCP server automatically assigns IP addresses to client stations logging
on to a TCP/IP network. DHCP is based on BOOTP and maintains some
backward compatibility.

AT TE NT IO N: You can use a DHCP server that is always configured to assign
the same IP address to specific devices when they appear on the EtherNet/
IP network and request an IP address.

If your system does not use a DHCP server that assigns the same IP address for
specific devices, we strongly recommend that you assign the device a fixed
IP address. Do not set the IP address dynamically. That is, do not use the Obtain
IP settings automatically by using DHCP.

When a device uses Obtain IP settings automatically by using DHCP, the IP
address for that device is cleared with each power cycle. If the same IP address
is not automatically assigned to the device when it requests a new IP address,
the device can be assigned another IP address than what was used before
cycling power.

The use of a new IP address can result in such issues as a Duplicate IP address
condition or configuration faults because the IP address differs from what is
stored in a Logix Designer application project.

Failure to observe this precaution can result in unintended machine motion or
loss of process control.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 29

Chapter 3 Set an IP Address

Set the IP Address with RSLinx Classic Software

To use RSLinx Classic software to set the IP address for the first time, after it
powers up in the out-of-box state, you must connect to the device via the USB

port.

If the device does not have a USB port, you cannot use RSLinx Classic
software to set the IP address for the first time the device powers up in the out­of-box state.

IMPORTANT You can use RSLinx Classic software to configure the device, including to

change the IP address after it has been set.

To change the IP address by using the RSLinx Classic software, the rotary
switches on the device must be set to positions that are valid for DHCP
address configuration (000...254).

You must access the device by browsing to it via an EtherNet/IP driver.

For more information on how to configure a device with RSLinx Classic
software, see page 32

WARNING: Do not use the USB port in hazardous locations.

.

ATT EN TI ON : The USB port is intended for temporary local programming
purposes only and not intended for permanent connection. The USB cable is
not to exceed 3.0 m (9.84 ft) and must not contain hubs.

Complete these steps to set the IP address with RSLinx Classic software when
the device is in the out-of-box state.

1. Confirm that your computer is connected to the device via a USB cable.

2. Start the RSLinx Classic software.

After several seconds, an RSWho dialog box appears.

3. If the RSWho dialog box does not appear, from the Communications
pull-down menu, choose RSWho.

4. Right-click the device and choose Module Configuration.

30 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Set an IP Address Chapter 3

The Module Configuration dialog box appears.

5. Click the Port Configuration tab.

6. Click Manually configure IP settings and set the port configuration
parameters.

7. Click OK.

8. Open the USB branch on the menu tree.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 31

Chapter 3 Set an IP Address

The device shows the IP address.

Configure Port Settings with RSLinx Classic Software

You can use RSLinx Classic software to configure a subset of the parameters
available on the device.

Complete the following steps.

1. Right-click the device and then click Module Configuration.

2. Click the Advanced Port Configuration tab.

32 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

IMPORTANT Consider the following when you configure the port settings:

• When the device uses the 1 Gbps network communication rate, it supports only full-duplex mode.

• When the device uses the 10 Mbps or 100 Mbps network communication rate, it supports full-duplex and half-duplex
mode.

• The speed and duplex settings for the devices on the same Ethernet network must be the same to avoid transmission errors.

• Fixed speed and full-duplex settings offer better reliability than autonegotiate settings and are recommended for some
applications.

• If the device is connected to an unmanaged switch, leave Auto-negotiate checked or the device fails.

• If you force the port speed and duplex with a managed switch, the corresponding port of the managed switch must be
forced to the same settings or the device fails.

• If you connect a manually configured device to an autonegotiate device (duplex mismatch), a high rate of transmission
errors can occur.

• To disable a port, clear the Enable checkbox.

You cannot disable both ports on a 5069-AENTR or FLEX 5000 EtherNet/IP adapter simultaneously in RSLinx Classic
software. We recommend that before you disable a port, you confirm that the port is not in use.

• If you disable a port in RSLinx Classic software and the port is being used for network communication, the communication is
interrupted.

In this case, if the other Ethernet port is enabled, we recommend that you moved the Ethernet cable from the disabled port
and connect it to the enabled port.

After you re-enable the port that was unintentionally disabled, you can change the cable connection back to the first port

Set an IP Address Chapter 3

Task Action

Let the device automatically set the
port speed and duplex settings.

Manually configure the port speed
and duplex settings.

Leave the Auto-negotiate enabled.

Follow these steps.

1. Clear the Auto-negotiate port speed and duplex checkbox.

2. From the Current Port Speed pull-down menu, choose a port speed.

3. From the Current Duplex pull-down menu, choose full-duplex.

3. On the Module Configuration dialog box, click OK.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 33

Chapter 3 Set an IP Address

Set the IP Address with Studio 5000 Logix Designer Application

To use the Logix Designer application to set the IP address of the device, follow
these steps.

1. In the Controller Organizer, right-click the device and choose
Properties.

The Module Properties dialog box appears.

2. Click the Port Configuration tab.

3. In the IP address field, type the IP address.

4. In the other fields, type the other network parameters, if needed.

IMPORTANT The fields that appear vary from one device to another.

5. Click Set.

6. Click OK.

34 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Set an IP Address Chapter 3

Reset the IP Address to Factory Default Value

You can reset the IP address of the device to its factory default value with the
following methods:

• If the device has rotary switches, set the switches to 888 and cycle power.

• If the device does not have rotary switches, use an MSG instruction to
the reset the IP address.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 35

Chapter 3 Set an IP Address

Notes:

36 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Chapter 4

Configure the Device

Top ic Pag e

Add the Device to the Controller Organizer 37

Configure EtherNet/IP Communication 38

Produced and Consumed Data 39

Message Instructions 39

After installing a device and setting the IP address, add the device to the
Controller Organizer in a programming software project. This addition
establishes I/O control.

Add the Device to the Controller Organizer

You must download that project to the host controller before operation can
begin. When the controller begins operation, it establishes a connection with
the device. The configuration of the device determines its behavior.

To build the I/O configuration for a typical I/O network, follow these steps.

1. Add the device.

2. Add the remote device for distributed I/O.

3. Add the I/O modules.

This graphic shows the I/O configuration of the consumer controller after
distributed I/O modules are added.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 37

Chapter 4 Configure the Device

Configure EtherNet/IP Communication

To configure the device, follow these steps.

1. Make sure that the device is installed, started, and connected to the
controller.

2. In the Controller Organizer, right-click the device and choose
Properties.

The Module Properties dialog box appears.

3. Make configuration selections on the individual tabs.

4. Click OK.

38 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Configure t he Device Chapter 4

Produced and Consumed Data

Logix controllers can produce (broadcast) and consume (receive) system­shared tags that are sent and received via the device. Produced and consumed
tags each require connections.

Tag Type Required Connections

Produced The local controller (producing) must have one connection for the produced tag

and the first consumer and one more connection for each additional consumer
(heartbeat). The produced tag requires two connections.

As you increase the number of controllers that can consume a produced tag, you
also reduce the number of connections the controller has available for other
operations. Example operations include communication and I/O.

Consumed Each consumed tag requires one connection for the controller that is consuming

the tag.
IMPORTANT: When you configure a consumed tag, you must add a remote

device to the programming software project for the producing controller to
configure the consuming controller. The default Comm Format when adding a
remote device to the project is rack-optimized.

Change the Comm Format to None when adding the remote device.

All EtherNet/IP devices support as many as 32 produced multicast
connections. Each tag that passes through an EtherNet/IP device uses one
connection. Due to this feature, the number of available connections limits the
total number of tags that can be produced or consumed. If the device uses all of
its connections for I/O and other devices, no connections remain for produced
and consumed tags.

Message Instructions

IMPORTANT Depending on whether it is producing or consuming a tag, a Logix 5000™

controller uses its connections differently.

For more information, see Logix 5000 Controllers Produced and Consumed
Tags Programming Manual, publication 1756-PM011

.

Messages transfer data to other devices, such as other controllers or operator
interfaces. Each message uses one connection, regardless of how many devices
are in the message path. To conserve connections, you can configure one
message to read from or write to multiple devices.

For more information on programming MSG instruction, see the Logix 5000™
Controller General Instructions Reference Manual, publication 1756-RM003

.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 39

Chapter 4 Configure the Device

Notes:

40 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Chapter 5

Send Email

This chapter describes how to send an email through an EtherNet/IP
communication module.

Top ic Pag e

EtherNet/IP Communication Module as an Email Client 41

Send Email Via a Controller-initiated Message Instruction 43

Possible Email Status Codes 58

For email, the EtherNet/IP communication module can be remote or local to
the controller.

EtherNet/IP Communication Module as an Email Client

The EtherNet/IP communication module is an email client that uses a mail
relay server to send email.

IMPORTANT The EtherNet/IP communication module can send an email to only one

recipient at a time. The module cannot mail to a distribution list.

Table 3 - Ethernet Email

Desired Action Required Tasks

Send an email to specific personnel when a controller
application generates an alarm or reaches a certain
condition

Send controller or application status information
regularly to a project manager

Program the controller to send an MSG instruction to the
EtherNet/IP communication module

The MSG instruction then instructs the
EtherNet/IP communication module to send the email
text (contained within the MSG instruction) to the mail
relay server.

Multiple controllers can use the same EtherNet/IP
communication module to initiate email.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 41

Chapter 5 Send Email

Logix5575

Redundancy Module

EtherNet/IP

PRI COM OK

ControlNet

EtherNet/IP

ControlNet

OKFORCESDRUN

R

U

N

R

E

M

P

R

O

G

1 2

LNK1 LNK2 OK

10/100 BASE T

LNK NET OK

EtherNet/IP

LNK NET OK

Firewall/R outer

ControlLogix®5580 Controller With 1756-ENBT, 1756-EN2F, 1756-EN2T,

1756-EN2TR, 1756-EN2TXT, 1756-EN3TR, or 1756-EN4TR Module

Ethernet Switch

Ethernet Switch

Compac tLogix 5380 Controller

Mail Relay
Server

The EtherNet/IP communication module sends only the content of an MSG
instruction as an email to a mail relay server. Delivery of the email depends on
the mail relay server. The EtherNet/IP communication module does not
receive email.

Figure 3 - Sample System

Table 4 - Sample System Capabilities

Device Capability

ControlLogix controller Send an MSG instruction to the 1756-ENBT module to initiate sending an

CompactLogix controller

ControlLogix 5580 Controller Send an email to the mail relay server from the email interface on the Send an

Mail relay server Send email to specified recipients.

email to the mail relay server.
Use the path of the MSG instruction to identify the 1756-ENBT module as the

target of the MSG instruction.

Email link.
This interface requires that you enter all email information.

The mail relay server determines the delivery of any email that is sent
through an EtherNet/IP communication module, whether via an MSG
instruction or from its built-in interface.

42 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

Send Email Via a Controller­initiated Message
Instruction

A Logix controller can send a generic CIP message instruction to the
EtherNet/IP communication module that instructs the module to send an
email message to an SMTP mail relay server that uses the standard SMTP
protocol. This process automatically communicates controller data and
application conditions to appropriate personnel.

IMPORTANT Be careful to write the ladder logic to be sure the MSG instructions are

not continuously triggered to send email messages.

Some mail relay servers require a domain name be provided during the initial
handshake of the SMTP session. For these mail relay servers, specify a domain
name when configuring the network settings of the EtherNet/IP
communication module.

Create String Tags

You need three controller-scoped string tags. Each tag performs one of
these functions:

• Identifies the mail server

• Contains the email text

• Contains the status of the email transmission

The default STRING data type supports up to 82 characters. In most cases,
this limit is sufficient to contain the address of the mail server. For example, to
create tag EmailConfigstring of type STRING, follow these steps.

1. Right-click on the Strings tab to create a New String Type.

The default STRING data type in the programming software is not
large enough for most email text.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 43

Chapter 5 Send Email

2. Create the String Type “EmailString”.

IMPORTANT An email message must not exceed 474 characters in length. An

additional 4-byte string-length value is added to the tag. As a
result, the maximum source length is 478 characters.

3. Create the tag names by toggling between the Monitor Tags and Edit
Tags tabs shown in the following image.

44 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

4. Enter a controller tag for the Email Configuration String.

5. Edit the newly created tag, and select the data type.

6. Type the IP address or host name of the mail server.

7. Click OK.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 45

Chapter 5 Send Email

...

8. Create one controller-scoped tag, such as EWEB_EMAIL, of this new
data type to contain the email text.

9. Create a second controller-scoped tag, such as EmailDstStr, of this new
data type to contain the transmission status.

Both of these tags are of type EmailString.

10. Set the Email Distribution String Tag to “1”.

11. Click in the Value column of the Controller Tags dialog box

46 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

12. Type your email.

Use the string browser to type the text of the email. To include To:,
From:, and Subject: fields in the email, use <CR><LF> symbols to
separate each of these fields. The To: and From fields are required; the
Subject: field is optional. For example:

To: Email address of recipient <CR><LF>
From: Email address of sender <CR><LF>
Subject: subject of message <CR><LF>
body of email message

The text of the email does not have to be static. You can program a
controller project to collect specific data to be sent in an email.

13. Click OK

For more information on how to use ladder logic to manipulate string data, see
the Logix 5000™ Controllers Common Procedures Programming Manual,
publication 1756-PM001

.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 47

Chapter 5 Send Email

SetServer

Enter the Ladder Logic

Ladder logic requires two MSG instructions. One MSG instruction configures
the mail server and must be executed only once. The second MSG instruction
triggers the email. Execute this email MSG instruction as often as needed.

The first rung configures the mail server. The second rung sends the email text.

Configure the MSG Instruction That Identifies the Mail Relay Server

To configure the MSG instruction that identifies the mail relay server, follow
these steps.

1. In the MSG instruction, click the Communication tab.

48 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

The Source Length is the number of characters in the STRING tag
that identifies the mail relay server plus 4 characters.
In this example, the tag contains 13 characters.

2. In the Path field, type the path for the MSG instruction. The path starts
with the controller initiating the MSG instruction.

Type the number of the port from which the message exits and the
address of the next module in the path.

For example, if the EtherNet/IP communication module is in the same
chassis as the controller and is in slot 2, the path is: 1, 2.

For more information on how to configure the path of an MSG
instruction, see the Logix 5000 Controllers General Instructions
Reference Manual, publication 1756-RM003

.

3. Click the Configuration tab.

4. Configure the MSG parameters for sending an email.

• From the Service Type pull-down menu, choose Attribute Single

• In the Instance field, type 1.

• In the Class field, type 32f.

• In the Attribute field, type 5.

• From the Source Element pull-down menu, choose the tag that

contains your email text.

• In the Source Length field, type the number of characters in the email

plus four.

In this example, you would enter 13 for the number of characters plus
4 for a total of 17.

After the MSG instruction that configures the mail relay server executes
successfully, the controller stores the mail relay server information in
nonvolatile memory. The controller retains this information, even
through power cycles, until another MSG instruction changes the
information.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 49

Chapter 5 Send Email

The Source Length is the number of characters in the STRING tag
that identifies the mail relay server plus 4 characters.
In this example, the tag contains 65 characters.

Configure the MSG Instruction That Contains the Email Text

To configure the MSG instruction that contains the email text, perform this
procedure.

1. Click the Configuration tab.

The Source Length is the number of characters in the email tag plus 4
characters.

In this example, the email text contains 65 characters.

2. Configure the MSG parameters for sending an email.

• From the Service Type pull-down menu, choose Custom.

• In the Service Code field, type 4b.

• In the Instance field, type 1.

• In the Class field, type 32f.

• In the Attribute field, type 0.

• From the Source Element pull-down menu, choose the tag that

contains your email text.

• In the Source Length field, type the number of characters in the email

plus four.

In this example, you would enter 65 for the number of characters plus
4 for a total of 69.

• From the Destination pull-down menu, choose a tag to contain the

status of your email transmission.

50 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

3. Click the Communication tab.

4. In the Path field, type the path from the controller to the EtherNet/IP
communication module.

The path starts with the controller initiating the MSG instruction. The
second number in the path represents the port from which the message
exits and the address of the next module in the path.

For example, if the EtherNet/IP communication module is in the same
chassis as the controller and is in slot 2, the path is: 1, 2.

5. If all devices in the path are configured in the I/O Configuration tree of
the initiating controller, click Browse to select the target module.

The software automatically completes the path.

6. Click OK.

For more information on how to configure the path of an MSG instruction, see
the Logix 5000 Controllers General Instructions Reference Manual,
publication 1756-RM003

.

7. Configure the MSG parameters for disabling the Email Object.

• From the Service Type pull-down menu, choose Set Attribute Single

• In the Instance field, type 0.

• In the Class field, type 32f.

• In the Attribute field, type 8.

• From the Source Element pull-down menu, choose the tag that

contains your email text.

• This example uses DisableEmailObject.

• In the Source Length field, type 1.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 51

Chapter 5 Send Email

Configure the Email Object

Ladder logic requires two MSG instructions. One MSG instruction disables
the mail server and must be executed only once. The second MSG instruction
enables the email. Execute this email MSG instruction as often as needed.

Disable the Email Object

IMPORTANT If you disable the Email Object, it is permanently disabled and a factory reset

is required to enable it again.

You can disable the Email Object by setting the class attribute 0x08 to 0. After
that operation, all object-specific services and all instance attributes are
unavailable for writing and reading. Furthermore, the Object Enable attribute
is read-only. The Email Object is permanently disabled and a factory reset is
required to enable it again. By default, the Email Object is enabled. Ta b l e 5

lists

the MSG block parameters to disable an Email Object.

Table 5 - Email Object Parameters

Service 0x10

Class 0x32F

Instance 0x00

Attribute 0x08

Data 0x00

52 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

To disable the Email Object, perform this procedure.

IMPORTANT 1756 EtherNet/IP communication modules with firmware 10.010 or higher

support this feature.

1. Create a tag, DisableEmailObject.

2. Select SINT for the data type.

3. Create a message object.

This example names the message object MSG_Disable.

4. In the Data Type category of the Edit Tags window, change the data type
to MESSAGE.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 53

Chapter 5 Send Email

5. In the MSG_Disable tag, click the Communication tab.

6. In the Path field, type the path for the MSG instruction. The path starts
with the controller initiating the MSG instruction.

Type the number of the port from which the message exits and the
address of the next module in the path.

For example, if the EtherNet/IP communication module is in the same
chassis as the controller and is in slot 2, the path is: 1, 2. The path in this
example is 1, 1. For this use case, the path is always 1, <1756-EN2T
module slot number>.

For more information on how to configure the path of an MSG
instruction, see the Logix 5000 Controllers General Instructions
Reference Manual, publication 1756-RM003

.

54 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

7. Click the Configuration tab.

Send Email Chapter 5

8. Configure the MSG parameters for sending an email.

• From the Service Type pull-down menu, choose Set Attribute Single

• In the Instance field, type 0.

• In the Class field, type 32f.

• In the Attribute field, type 8.

• Create a tag that is type SINT and set the tag value to 0. This example

uses DisableEmailObject.

• In the Source Length field, type 1.

9. Click Apply.

10. In the ladder logic, toggle message to execute.

The value is returned in the second message. Since there is no
destination element, you do not get a response. However, you receive the
DN bit set.

Get Email Object Status

To determine if the email object is disabled, perform this procedure.

1. Create a tag, EmailObjectStatus.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 55

Chapter 5 Send Email

2. Select SINT for the data type.

3. Create a message object.

This example names the message object MSG_EmailObjectStatus.

4. In the Data Type category of the Edit Tags window, change the data type
to MESSAGE.

5. In the MSG_EmailObjectStatus instruction, click the Communication
tab.

6. In the Path field, type the path for the MSG instruction. The path starts
with the controller initiating the MSG instruction.

Type the number of the port from which the message exits and the
address of the next module in the path.

56 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Send Email Chapter 5

For example, if the EtherNet/IP communication module is in the same
chassis as the controller and is in slot 2, the path is: 1, 2. The path in this
example is 1, 1.

For more information on how to configure the path of an MSG
instruction, see the Logix 5000 Controllers General Instructions
Reference Manual, publication 1756-RM003

.

7. Click the Configuration tab.

8. Configure the MSG parameters for sending an email.

• From the Service Type pull-down menu, choose Get Attribute Single.

• In the Instance field, type 0.

• In the Class field, type 32f.

• In the Attribute field, type 8.

• From the Destination Element pull-down menu, choose the tag that

contains your email text. This example uses EmailObjectStatus.

9. Click Apply.

10. In the ladder logic, toggle message to execute.

If the MSG_EmailObjectStatus.DN bit is set and the value of the
EnableObjectStatus is 0, then the Email Object is disabled. If the value
of the EnableObjectStatus is 1, then the Email Object is enabled.

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 57

Chapter 5 Send Email

Possible Email Status Codes

Examine the destination element of the email MSG to see whether the email
was successfully delivered to the mail relay server. A successful delivery
indicates that the mail relay server placed the email message in a queue for
delivery. This notification does not mean that the intended recipient received
the email message. Ta b l e 6

lists the possible codes that a destination element

could contain.

Table 6 - Email Status Code Descriptions

Error
Code
(Hex)

0x00 None Delivery successful to the mail relay server.

0x02 None Resource unavailable. The email object was unable to obtain memory

0x08 None Unsupported Service Request. Make sure that the Service Code is 0x4B and the

0x11 None Reply data too large. The Destination string must reserve space for the SMTP

0x13 None Configuration data size too short. The Source Length is less than the Source

0x15 None Configuration data size too large. The Source Length is greater than the Source

0x19 None Data write failure. An error has occurred when attempting to write the SMTP

0xFF 0x0100 Error that an email server returns; check the Destination string for reason. The

0xFF 0x0104 Unable to connect to SMTP mail server set in Attribute 5. If the mail server

Extended­error Code
(Hex)

0x0101 SMTP mail server not configured. Attribute 5 was not set with an SMTP server

0x0102 ‘To :’ address not specified. Attribute 1 was not set with a ‘To :’ address AND

0x0103 ‘From:’ address not specified. Attribute 2 was not set with a ‘From:’ address

0x0105 Communication error with SMTP mail server. An error occurred after the initial

0x0106 SMTP mail server host name DNS query did not complete. A previous send

Description

resources to initiate the SMTP session.

Class is 0x32F.

server reply message. The maximum reply can be 470 bytes.

Element string size plus the 4-byte length. The Source Length must equal the
Source Element string size + 4.

Element string size plus the 4-byte length. The Source Length must equal the
Source Element string size + 4.

server address (attribute 4) to nonvolatile memory.

email message was not queued for delivery.

address.

there is not a ‘To: ’ field header in the email body.

AND there is not a ‘From:’ field header in the email body.

address is a host name, make sure that the device supports DNS, and that a
Name Server is configured. If the host name is not fully qualified, for example,
‘mail host’ and not ‘mailhost.xx.yy.com’ then the domain must be configured
as ‘xx.yy.com’. Try ‘ping <mail ser ver address>’ to make sure that the mail
server is reachable from your network. Also try ‘telnet <mail server address>
25’, which attempts to initiate an SMTP session with the mail server via telnet
over port 25. (If you connect then type ‘QUIT’).

connection with the SMTP mail server.

See the ASCII text following the error code for more details as to the type of
error.

service request with a host name as the SMTP mail server address did not yet
complete. A timeout for a DNS lookup with an invalid host name can take up to
3 minutes. Long timeouts can also occur if a domain name or name server is
not configured correctly.

58 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

Index

A

additional resources 5

B

BOOTP/DHCP

disable with RSLinx Classic software

BOOTP/DHCP tool

set network IP address

25 … 26

C

configure

communication drivers
EtherNet/IP communication driver

MSG instructions
set network IP address
USB communication driver 21 … 23
with RSLinx Classic software
workstation

20

19 … 23

19 … 23

50

25 … 34

D

DHCP server 29
DNS addressing
duplicate address detection

11 … 12

30 … 32

10

28

19 …

R

RSLinx Classic software

configure network parameters
disable BOOTP/DHCP
Ethernet communication driver
set IP address
USB communication driver

30 … 31

30 … 32

28

19 … 20

21 … 23

S

set IP address

with RSLinx Classic software

set network IP address

BOOTP/DHCP tool

software

RSLinx Classic

configure network parameters

32

status codes

58

email

string tags 43

25 … 26

30 … 32

U

USB communication driver 21 … 23

30 …

E

email

MSG instruction
overview
send through an EtherNet/IP modu le 41 …

sending via MSG instruction
status codes

Ethernet communication driver
EtherNet/IP communication driver
EtherNet/IP network

module features

50

41

58

43 … 51

58

19 … 20

14

I

IP address

duplicate address detection
set with RSLinx Classic software

10

M

MSG instruction

sending email
sending via an email

50

43 … 51

N

network parameters

DNS addressing

11 … 12

19 … 20

30 … 31

Rockwell Automation Publication ENET-UM006A-EN-P - March 2019 59

Index

Notes:

60 Rockwell Automation Publication ENET-UM006A-EN-P - March 2019

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Supersedes Publication ENET-UM001P-EN-P, ENET-UM004D-EN-P - August 2017 and May 2018, respectively Copyright © 2019 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.