Rockwell Automation Allen-Bradley 1718 Series User manual

1718 Ex I/O
Catalog Numbers 1718-AENTR, 1718-IJ, 1718-OB2, 1718-OB2L,
1718-IBN8, 1718-IBN8B, 1718-IT4B, 1718-IR4B, 1718-IF4HB, 1718-
CF4H, 1718-PSDC, 1718-A20, 1718-A10, 1718-CBL3, 1718-ARM,
1718-E4UBDE-1, 1718-E4UBDE-20, 1718-E4UBDE-40, 1718-
E4UBDE-100, 1718-E4UBJM-2, 1718-E4UBJM-20,1718-
E4UBJM-40, 1718-E4UBJM-100
User Manual Original Instructions

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.
Labels may also be on or inside the equipment to provide specific precautions.
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.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
vole 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).

Rockwell Automation Publication 1718-UM001A-EN-E - June 2020 3
Table of Contents
Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preface Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Purpose of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 1
Product Specifications
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1718 Ex I/O Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1718 Ex I/O Components Overview . . . . . . . . . . . . . . . . . . . . . . . . . 9
Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Enclosures for Use in Zone 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Design and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
I/O Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Analog Module Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Digital Output Module Selection Guide. . . . . . . . . . . . . . . . . . . . . 15
Design and Dimensions of the Modules . . . . . . . . . . . . . . . . . . . . . 17
Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Adapter Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Adapter Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
EtherNet/IP Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Use the Module on a Device Level Ring Network . . . . . . . . . . . . 21
1718-AENTR LCD Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Protected Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Enter and Exit Protected Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Restrictions Imposed By Protected Mode. . . . . . . . . . . . . . . . . . . . 26
Perform Tasks When Restricted . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Placeholder Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 2
Commissioning
Electrical Testing of Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Testing and Addressing the EtherNet/IP Connection . . . . . . . . 33
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 3
Operation
Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Configure a 1718 Ex I/O System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Addressing with 1718 Ex I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4Rockwell Automation Publication 1718-UM001A-EN-E - June 2020
Table of Contents
Chapter 4
1718 Ex I/O HART Analog I/O Modules
HART Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Integrated HART Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
HART-enabled I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Asset Management Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
HART Device Info Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Set Device Info (1718-IF4HB, 1718-CF4H). . . . . . . . . . . . . . . . . 45
HART Command Tab -
1718-IF4HB, 1718-CF4H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Data in the Input Tags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
HART Dynamic Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
How the Module Automatically Collects Data . . . . . . . . . . . . . . . 49
Getting HART Data by Using CIP MSG . . . . . . . . . . . . . . . . . . . . . . . 52
HART Modules Used with Asset Management Software . . . . . . . . . 52
Considerations for Asset Management Systems . . . . . . . . . . . . . . 52
Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix A
Troubleshooting
Communication Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Signal Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Appendix B
Technical Data
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Appendix C
Additional HART Protocol
Information
Message Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Master-slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Multiple Master Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Transaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Response Code and
Field Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
HART PV, SV, TV, and FV Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Appendix D
Engineering Unit Code Numbers
Code Number Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Rockwell Automation Publication 1718-UM001A-EN-E - June 2020 5
Preface
Read this preface to familiarize yourself with the rest of the manual. It provides
information concerning:
•who should use this manual
•the purpose of this manual
•related documentation
•supporting information
Who Should Use This Manual This manual is intended for trained and qualified personnel who are responsible
for mounting, installation, commissioning, operation, maintenance, and
disassembly of 1718 Ex I/O.
Purpose of This Manual This manual provides information and describes the procedures that are used to
install, wire, troubleshoot, and operate 1718 Ex I/O.
Additional Resources These resources contain information about related products from
Rockwell Automation.
You can view or download publications at
http://www.rockwellautomation.com/literature/. For Release Notes and other
publications specific to your module, search the catalog number of the module.
To order paper copies of technical documentation, contact your local Allen-
Bradley distributor or Rockwell Automation sales representative.
Resource Description
1718 Ex I/O Installation Instructions,
publication 1718-IN001
Describes how to install and wire the 1718 Ex I/O input
and output modules
1718 Ex I/O Technical Data,
publication 1718-TD001
Provides specifications, wiring diagrams, and module
block diagrams for 1718 Ex I/O
1718 Certification Bulletin, publication 1718-CT001 Provides 1718 Ex I/O certification information and links to
control drawings.
Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
Provides general guidelines for installing a
Rockwell Automation industrial system.

6Rockwell Automation Publication 1718-UM001A-EN-E - June 2020
Preface
Notes:

Rockwell Automation Publication 1718-UM001A-EN-E - June 2020 7
Chapter 1
Product Specifications
Introduction Remote I/O systems, consisting of I/O modules, adapters, power supplies, and a
chassis, form the interface for signals to be transmitted from the explosion
hazardous area (Ex area), to the safe area (non-hazardous area). With
appropriate enclosures, remote I/O systems can be installed in Gas-Ex areas of
Zone 1. Using remote I/O, a wide range of digital and analog sensors and
actuators can be connected to process control systems over a EtherNet/IP™.The
adapter is the interface between the I/O modules on the chassis and the process
control system. Power supplies are used topower the I/O modules and adapter.
This manual sets out how to work with the hardware. See the adapter and I/O
modules for information on the configuration of the adapter and the I/O
modules.
Table 1 - 1718 Ex I/O Modules
Topic Page
Introduction 7
1718 Ex I/O Components 9
Enclosures 9
Chassis 10
I/O Modules 13
Adapter 19
Power Supply Module 28
Placeholder Module 29
Accessories 29
IMPORTANT Requirements for equipment protection level Gb Components of the
1718 Ex I/O system may be installed and operated in Zone 1 only if they are
installed in a surrounding enclosure that complies with a Gb equipment
protection level.
Type Catalog Number Description
Communication Adapter 1718-AENTR Ex I/O EtherNet/IP Adapter
Digital input
1718-IJ Ex I/O Frequency Counter
1718-IBN8B Ex I/O 8 Point Digital Input NAMURWide
1718-IBN8 Ex I/O 8 Point Digital Input NAMUR

8Rockwell Automation Publication 1718-UM001A-EN-E - June 2020
Chapter 1 Product Specifications
Analog input
1718-IF4HB Ex I/O 4 Channel HART Analog InputWide
1718-IR4B Ex I/O 4 Channel RTD InputWide
1718-IT4B Ex I/O 4 Channel Thermocouple Input Wide
Configurable
analog input/output 1718-CF4H Ex I/O 4 Channel HART Analog Configurable
Digital output 1718-OB2 Ex I/O 2 Point Digital Output 23V
1718-OB2L Ex I/O 2 Point Digital Output 16.5V
Power supply 1718-PSDC Ex I/O DC Power Supply
Backplane 1718-A20 Ex I/O 20 Slot Chassis
1718-A10 Ex I/O 10 Slot Chassis
Connection cable 1718-CBL3 Ex I/O Chassis Extension Cable 3 m
EtherNet/IP cable 1718-E4UBDE-1 M12-M12 E/IP cable, 1 m
1718-E4UBDE-20 M12-M12 E/IP cable, 20 m
1718-E4UBDE-40 M12-M12 E/IP cable, 40 m
1718-E4UBDE-100 M12-M12 E/IP cable, 100 m
1718-E4UBJM-2 M12-RJ45 E/IP cable, 2 m
1718-E4UBJM-20 M12-RJ45 E/IP cable, 20 m
1718-E4UBJM-40 M12-RJ45 E/IP cable, 40 m
1718-E4UBJM-100 M12-RJ45 E/IP cable, 100 m
Placeholder 1718-ARM Ex I/O Empty Slot Cover
Type Catalog Number Description

Rockwell Automation Publication 1718-UM001A-EN-E - June 2020 9
Product Specifications Chapter 1
1718 Ex I/O Components 1718 Ex I/O Components Overview
See the following graphic and table for the descriptions of different 1718 Ex I/O components:
Figure 1 - 1718 Ex I/O Components Overview
Table 2 - 1718 Ex I/O Components Overview
Enclosures Enclosures protect all electronic components against environmental influences
and are an integral part of explosion protection. Enclosures are not part of the
Ex I/O components. In order to meet zone 1 mounting requirements, you
must use a certified enclosure, for example, ATEX for use in Europe.
Description Description
1 Ex-e-terminals and IP30 cover 4 I/O modules
2 Power supply 5 Enclosure(1)
(1) The enclosure is a requirement for Zone 1 areas and is not part of the 1718 Ex I/O components. It is shown here for illustration
purposes only.
3 Adapter 6 Backplane
2
5
6
Stainless Steel Enclosure 1 3 4
14
6
Plastic Enclosure
23
5

10 Rockwell Automation Publication 1718-UM001A-EN-E - June 2020
Chapter 1 Product Specifications
Rockwell Automation partners with Pepperl+Fuchs for enclosure solutions.
For more details on the enclosures from our partners, see publication 1718-
PP002.
These enclosures are made of glass fiber reinforced polyester or stainless steel
and are available in various versions. The enclosures contain chassis for the
connection of modules. The modular concept allows multiple enclosures to be
flanged together to create the required expansion level. Each enclosure
contains Ex-e terminals for power. For safety, these are individually equipped
with protective covers (IP30) and touch protection.
The enclosures are equipped with a rating plate listing all safety-relevant
information, for example, type of ignition protection, temperature class,
permissible ambient temperature and permissible power.
Enclosures for Use in Zone 1
Zone 1 explosion protection relates to:
• Responsibility
•Accountability
• Safety for life, health, and property
• Electrical safety
To choose an enclosure from an enclosure manufacturer, make sure that the
manufacturer has adhered to regional certification directives, for example
ATEX for use in Europe, submitted the enclosure for regional certification in
accordance with applicable directives, such as ATEX directive 2014/34/EU,
and received appropriate certification.
The enclosure manufacturer, the manufacturing facility, and the enclosure
installer need respective certification in order to comply with regional Zone 1
standards, for example ATEX in Europe.
Chassis Function
The modules are plugged into the chassis, which in turn is installed in a
certified enclosure. The chassis supplies the modules with energy and provides
internal wiring.