Rockwell Automation 1797-XXX User Manual

FLEX Ex System
Certification

1797 Series

Reference Manual

Important User Information

Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls (Publication SGI-1.1 available from your local
Rockwell Automation sales office or online at http://www.ab.com/manuals/gi)
describes some important differences between solid state equipment and hard-wired
electromechanical devices. Because of this difference, and also because of the wide
variety of uses for solid state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this equipment is
acceptable.

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 we may use notes to make you aware of safety considerations.

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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.

Identifies information that is critical for successful application
and understanding of the product.

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

• recognize the consequence

Labels may be located on or inside the equipment to alert people
that dangerous voltage may be present.

Labels may be located on or inside the equipment to alert people
that surfaces may be dangerous temperatures.

Summary of Changes

Changed Items

These items changed since the last printing of this FLEX Ex System
Certification Reference Manual, publication 1797-6.5.6:

Updated Information Page

1797-IE8H Section 45-2…45-4

1797-OE8H Section 48-2…48-4

To help you find new and updated information in this release of the manual,
we have included change bars as shown next to this paragraph.

1 Publication 1797-6.5.6 - June 2005

Summary of Changes 2

Notes:

Publication 1797-6.5.6 - June 2005

Preface

What Is Intrinsically Safe?

What are Product Certifications?

According to Article 504 of the National Electrical Code, NFPA 70, an
intrinsically safe (I/S) product is defined as one in which no spark or thermal
effect generated during normal functioning and/or during specific fault
conditions is able to ignite a given explosive atmosphere.

One example of an I/S product is FLEX Ex distributed I/O control.

A product certification is a guarantee that the product has been designed and
manufactured with the required I/S specifications and protection. Considering
the potential danger in hazardous locations, product certification is required
for all I/S products.

Three Types of Product Certifications

In this reference manual, we describe three types of product certifications and
how they relate to FLEX Ex products:

• CENELEC - European Electrotechnical Committee for
Standardization. This is the standard in all European Union
countries.

• UL and C-UL - Underwriters Laboratories (UL in the United States
and C-UL in Canada)

• FM - Factory Mutual, another available certifying body in the United
States

What are Entity Parameters?

FLEX Ex products are certified to the appropriate CENELEC, UL, C-UL and
FM standards, depending on the module.

Entity parameters provide a system of quantifying and matching safe levels for
voltage, current, inductance, and capacitance when connecting field devices
and system devices together.

FLEX Ex uses entity parameters to quantify safe levels when connecting I/O
modules to field devices. Inputs and outputs are specified with:

• open-circuit voltage (U

• short-circuit current (I

• allowed capacitance (C

• allowed inductance (L

Switched outputs are specified as if they were inputs.

Field devices using entity parameters are specified with:

• maximum input voltage (U

or Voc)

o

or Isc)

o

or Ca)

o

or La)

o

or V

i

max

)

1 Publication 1797-6.5.6 - June 2005

Preface 2

268Ω
21V

• maximum input current (Ii or I

• maximum internal capacitance (C

• maximum internal inductance (L

In use, the sum of all the input C
C

o

and L

Also, the sum of all the Uo and Io cannot exceed the input Ui and Ii.

o.

and Li in a control loop cannot exceed the

i

max

)

)

i

)

i

The following is a short explanation of how entity-based architectures help
simplify IS system design.

Entity Parameters Example

An output channel and the valve it will drive are illustrated in the following
figure. By comparing entity parameters, you can quickly determine the
appropriate match.

+

sig

cable length = 10m

C

<10pF/m

i

<0.5uH/m

L

i

R<0.1Ω/m

P/I transmitter

EEx ia IIC T4

U

=30V

i

=165mA

I

i

C

=22.5nF

i

=730uH

L

i

1797-IE8 Analog Input

EEx ia/ib IIB/IIC T4

U

<23.7V

o

<93.5mA

I

o

C

a

L

a

IIB

=560nF
=10mH

C

a

=2.5mH

L

a

IIC

=66nF

22Ω

Module

U

I
C
L

Module

U

<23.7V

o

I

<92.5mA

o

=66nF

C

a

L

=2.5mH

a

Total Loop

o

o

a

a

< or =
< or =
> or =
> or =

< or =
< or =
> or =
> or =

U

i

I

i

C

i

L

i

Total Loop

U

=30V

i

I

=165mA

i

=22.6nF

C

i

L

=735uH

i

=
=
=
=

=
=
=
=

Transmitter

U

i

I

i

C

i

L

i

Transmitter

U

=30V

i

I

=165mA

i

=22.5nF

C

i

L

=730uH

i

Distance Cable

++(length * C

(length * L

Distance Cable

++(10m * C

(10m * L

In this example, the combination is compatible because the valve can
withstand:

• U

• I

= 30V

i

= 165mA

i

These values are higher than what the 1797-IE8 can provide:

per length)

i

per length)

a

=10pF/m)

i

=0.5uH/m)

a

40052

Publication 1797-6.5.6 - June 2005

• Uo= 23.7V

Preface 3

Intrinsic Safety Terminology

• I

= 93.5mA

o

In the same way, the valve is characterized by:

• C

• L

= 22.5nF

i

= 730µH

i

These values are lower than what the 1797-IE8 allows:

• C

• L

= 66nF

o

=2.5mH

o

The following sections describe key terms used in this reference manual:

Hazardous Area Designation

A hazardous area is designated as any location in which a combustible material
is or may be present in the atmosphere in sufficient concentration to produce
an ignitable mixture.

The North American method identifies these areas by Class, Division, and
Group while the IEC (CENELEC) designates these areas by Zone and Gas
Group.

Recently, North America has adopted the Zone method of identifying
hazardous locations as an option to the Division method.

Class Designation

Class identifies the type of hazardous atmosphere.

Class I Gas or vapor

Class II Dust

Class III Fiber or flying (no group designation)

Publication 1797-6.5.6 - June 2005

Preface 4

Division/Zone Designations

Division/Zone identifies the likelihood of a hazardous atmosphere being
present.

Division Method
(North America)

Ignitable mixture present continuously
(long periods)

Division 1

Ignitable mixture present intermittently

Ignitable mixture is not normally present Division 2

IEC Standard
Zone Method

Zone 0
(Zone 20-Dust)

Zone 1
(Zone 21-Dust)

Zone 2
(Zone 22-Dust)

Gas/Dust Groups

Hazardous locations are grouped according to their ignition properties.

Typical Gas IEC Gas Group North American Gas Group

Acetylene IIC A

Hydrogen IIC B

Ethylene IIB C

Propane IIA D

1

Methane

Metal Dust - E

Coal Dust - F

Grain Dust - -

I

1

D

Publication 1797-6.5.6 - June 2005

1 Mining applications under jurisdiction of MSHA.

Preface 5

Use in North American Hazardous Locations

FLEX Ex modules are rated for installation in Class I Division 1 & 2, Groups
A-D hazardous areas. They are also rated to connect to field devices that are
located in Class I, II, or III, Groups A-G hazardous areas.

If FLEX Ex components are to be installed in a Class II or III location in your
application, you can mount them in a suitable, dust-proof enclosure with the
appropriate connectors, glans, and seals. For example, a NEMA 9 enclosure
may be appropriate. The FLEX Ex modules are rated to connect to devices in
Class II or III locations.

FLEX Ex modules are rated for installation in North American Class I Zone 1
& 2, Groups IIC, IIB, & IIA hazardous areas. They are also rated to connect
to field devices that are located in North American Class I Zone 0, 1, & 2,
Groups IIC, IIB, & IIA hazardous areas.

As always, observe local code requirements when applying your FLEX Ex
application.

Use in CENELEC Hazardous Locations

FLEX Ex modules are rated for installation in European Zones 1, 2, and 22.
They are also rated to connect to field devices that are located in European
Zones 0, 1, 2, 21, and 22 hazardous areas. The FLEX Ex power supplies
(1797-PS1E and -PS2E2) are rated for use in Zones 1 and 22.

If FLEX Ex components are to be installed in a European Zone method dust
or fiber location in your application, you must mount them in an approved,
dust-proof enclosure with the appropriate connectors, glans, and seals.
Pepperl+Fuchs have three cabinets that are approved for use with FLEX Ex
components in Zone 22 applications: IVK2-ISRPI-V8LC;
IVK2-ISRPI-V8HYW; and IVK2-ISRPI-V16LC. P+F has offices in
Twinsburg, Ohio, USA, and Mannheim, Germany. See their website at
www.pepperl-fuchs.com.

As always, observe local code requirements when applying your FLEX Ex
application.

Publication 1797-6.5.6 - June 2005

Preface 6

Methods of Protection

The following techniques are rated by methods of protection.

Symbol for Protection Method

Zone Division

Technique

Oil Immersion Ex o EEx o AEx o Ex o 1 and 2 *

Pressurization Ex p EEx p AEx p Ex p Type X, Y, Z 1 and 2 1 (X, Y) and 2 (Z)

Powder Filling Ex q EEx q AEx q Ex q 1 and 2 *

Flameproof Ex d EEx d AEx d Ex d 1 and 2

Explosionproof XP 1 and 2

Increased Safety Ex e EEx e AEx e Ex e 1 and 2 *

Intrinsic Safety

Dual Fault
Single Fault

Non-Incendive

Limited Energy
Non-Sparking
Enclosed Break
Restricted Breathing
Simplified Pressurization

Encapsulation Ex m EEx m Aex m Ex m 1 and 2 *

IEC CENELEC NEC CEC

Ex ia
Ex ib

Ex nL
Ex nV

Ex nW

Ex nR
Ex nP

EEx ia
EEx ib

EEx nL
EEx nV

EEx nW

EEx nR
EEx nP

AEx ia
AEx ib

AEx nL

AEx nV

AEx nW

AEx nR

AEx nP

Ex nW

Ex ia

IS

Ex ib

NI 2 2
Ex nL
Ex nV

Ex nR
Ex nP

Permitted Zone Permitted Division

1 and 2

0, 1, and 2

1 and 2

* These protection methods are not recognized in the Division method. However, they may be suitable for some North American Division applications.

Temperature Category

The temperature category defines the maximum surface temperature of the

o

device. Ratings are given with reference to 40
stated.

T1

T2

T2A

T2B

T2C

T2D

T3

The additional temperature categories highlighted above are for North America only.

o

C (842oF)

450

300oC (572oF)

280oC (536oF)

260oC (500oF)

230oC (446oF)

215oC (419oF)

o

200

C (392oF)

C ambient unless otherwise

T3A

T3B

T3C

T4

T4A

T5

T6

180oC (356oF)

165oC (329oF)

160oC (320oF)

135oC (275oF)

120oC (248oF)

100oC (212oF)

85oC (185oF)

Publication 1797-6.5.6 - June 2005

Preface 7

Understanding the Layout of this Manual

CENELEC Certification Information General CENELEC Certification Information 1

This reference manual consists of three sections:

• CENELEC Certification Information

• UL, C-UL Certification Information

• FM Certification Information

TIP

The chapters in this document have been renumbered to
include additional modules. If you were referred to a
particular chapter from another document, use the tables
below to determine the correct chapter number.

CENELEC Certification Information

For Information On Refer to this Chapter

ControlNet Ex System 2

1797-TB3 FLEX Ex Terminal Base Unit 3

1797-TB3S FLEX Ex Terminal Base Unit 4

1797-IBN16 FLEX Ex 16 NAMUR Input Module 5

1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module 6

1797-IE8 FLEX Ex 8 Input Analog Module 7

1797-IE8H FLEX Ex 8 Input HART Analog Module 8

1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter 9

1797-OE8 FLEX Ex 8 Output Analog Module 10

1797-OE8H FLEX Ex 8 Output HART Analog Module 11

1797-IRT8 FLEX Ex Thermocouple/RTD Input Module 12

1797-IJ2 FLEX Ex Frequency Input Module 13

1797-PS1E FLEX Ex Power Supply 14

1797-PS2E2 FLEX Ex Power Supply 15

1797-ACNR15 ControlNet Ex Redundant Media Adapter 16

1797-RPA ControlNet Ex Modular Repeater Adapter and
1797-RPFM Fiber Repeater Module, Medium Distance

1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector 18

1797-BCNR Redundant ControlNet Ex Barrier 19

17

Publication 1797-6.5.6 - June 2005

Preface 8

UL, cUL Certification Information

For Information On Refer to this Chapter

UL, cUL Certification Information General UL, C-UL Certification Information 20

ControlNet Ex System 21

1797-TB3 FLEX Ex Terminal Base Unit 22

1797-TB3S FLEX Ex Terminal Base Unit 23

1797-IBN16 FLEX Ex 16 NAMUR Input Module 24

1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module 25

1797-IE8 FLEX Ex 8 Input Analog Module 26

1797-IE8H FLEX Ex 8 Input HART Analog Module 27

1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter 28

1797-OE8 FLEX Ex 8 Output Analog Module 29

1797-OE8H FLEX Ex 8 Output HART Analog Module 30

1797-IRT8 FLEX Ex Thermocouple/RTD Input Module 31

1797-IJ2 FLEX Ex Frequency Input Module 32

1797-PS1N FLEX Ex Power Supply 33

1797-PS2N2 FLEX Ex Power Supply 34

1797-ACNR15 ControlNet Ex Redundant Media Adapter 35

1797-RPA ControlNet Ex Modular Repeater Adapter and
1797-RPFM Fiber Repeater Module, Medium Distance

1797-BCNR Redundant ControlNet Ex Barrier 37

36

Publication 1797-6.5.6 - June 2005

FM Certification Information

For Information On Refer to this Chapter

FM Certification Information General FM Certification Information 38

ControlNet Ex System 39

1797-TB3 FLEX Ex Terminal Base Unit 40

1797-TB3S FLEX Ex Terminal Base Unit 41

1797-IBN16 FLEX Ex 16 NAMUR Input Module 42

1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module 43

1797-IE8 FLEX Ex 8 Input Analog Module 44

1797-IE8H FLEX Ex 8 Input HART Analog Module 45

1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter 46

1797-OE8 FLEX Ex 8 Output Analog Module 47

1797-OE8H FLEX Ex 8 Output HART Analog Module 48

1797-IRT8 FLEX Ex Thermocouple/RTD Input Module 49

1797-IJ2 FLEX Ex Frequency Input Module 50

Preface 9

1797-PS1N FLEX Ex Power Supply 51

1797-PS2N2 FLEX Ex Power Supply 52

1797-ACNR15 ControlNet Ex Redundant Media Adapter 53

1797-RPA ControlNet Ex Modular Repeater Adapter and
1797-RPFM Fiber Repeater Module, Medium Distance

1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector 55

54

Publication 1797-6.5.6 - June 2005

Preface 10

Notes:

Publication 1797-6.5.6 - June 2005

General CENELEC Certification
Information

ControlNet Ex System

Table of Contents

CENELEC Information

Chapter 1

General Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Installation in Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Installation in Zone 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

European Community Directive Compliance . . . . . . . . . . . . . . . . . . 1-2

EMC Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

LVD Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

ATEX Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Attention: Avoid electrostatic charge.. . . . . . . . . . . . . . . . . . . . . . 1-3

About Zone 22 Junction Boxes (Cabinets). . . . . . . . . . . . . . . . . . . . . 1-4

Chapter 2

ControlNet Ex System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Describing the ControlNet Ex System Diagram . . . . . . . . . . . . . . . . 2-3

Certified Equivalent ControlNet Ex System Diagram Items . . . 2-4

Installation in Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Installation in Zone 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Attention: Avoid electrostatic charge.. . . . . . . . . . . . . . . . . . . . . . 2-5

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Chapter 3

1797-TB3 FLEX Ex
Terminal Base Unit

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Chapter 4

1797-TB3S FLEX Ex
Terminal Base Unit

i Publication 1797-6.5.6 - June 2005

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

ii

1797-IBN16 FLEX Ex 16 NAMUR
Input Module

1797-OB4D FLEX Ex 24V dc
Non-Isolated Source 4 Output
Module

1797-IE8 FLEX Ex 8 Input Analog
Module

Chapter 5

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . . 5-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

CE/CENELEC I/O Entity Parameters (Each Channel) . . . . . . . . . 5-3

Chapter 6

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . . 6-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

CE/CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . 6-2

Chapter 7

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . . 7-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

CE/CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . 7-3

1797-IE8H FLEX Ex 8 Input HART
Analog Module

1797-IE8NF FLEX Ex 8 Input
Analog Module with Noise Filter

Chapter 8

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . . 8-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

CE/CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . 8-3

Chapter 9

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . . 9-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

CE/CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . 9-3

Publication 1797-6.5.6 - June 2005

1797-OE8 FLEX Ex 8 Output Analog
Module

1797-OE8H FLEX Ex 8 Output HART
Analog Module

1797-IRT8 FLEX Ex
Thermocouple/RTD Input Module

iii

Chapter 10

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 10-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

CE, CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . 10-2

Chapter 11

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 11-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

CE, CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . 11-2

Chapter 12

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 12-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2

CE/CENELEC I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . 12-3

1797-IJ2 FLEX Ex Frequency Input
Module

1797-PS1E FLEX Ex Power Supply

Chapter 13

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 13-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

CE/CENELEC Input I/O Entity Parameters. . . . . . . . . . . . . . . . . 13-3

Channel 0 Frequency Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-3

Channel 1 Frequency Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-4

Channel 0 Gate Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-5

Channel 1 Gate Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-5

Relay Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-6

Chapter 14

Installation in Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Installation in Zone 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Publication 1797-6.5.6 - June 2005

iv

1797-PS2E2 FLEX Ex Power Supply

1797-ACNR15 ControlNet Ex
Redundant Media Adapter

1797-RPA ControlNet Ex Modular
Repeater Adapter and 1797-RPFM
Fiber Repeater Module, Medium
Distance

1797-BIC Bus Isolator Module and
1797-CEC Flexbus Connector

Chapter 15

Installation in Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

Installation in Zone 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2

Chapter 16

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2

Chapter 17

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2

Chapter 18

General Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-3

1797-BCNR Redundant ControlNet
Ex Barrier

Chapter 19

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2

Publication 1797-6.5.6 - June 2005

General UL, C-UL Certification
Information

ControlNet Ex System

v

UL, C-UL Information

Chapter 20

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-2

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 20-2

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-2

Attention: Avoid electrostatic charge.. . . . . . . . . . . . . . . . . . . . . 20-2

Chapter 21

ControlNet Ex System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2

Describing the ControlNet Ex System Diagram . . . . . . . . . . . . . . . 21-3

Certified Equivalent ControlNet Ex System Diagram Items . . 21-4
Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-5

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-6

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-6

Attention: Avoid electrostatic charge.. . . . . . . . . . . . . . . . . . . . . 21-6

1797-TB3 FLEX Ex
Terminal Base Unit

1797-TB3S FLEX Ex
Terminal Base Unit

Chapter 22

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-3

Chapter 23

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-3

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vi

1797-IBN16 FLEX Ex 16 NAMUR
Input Module

1797-OB4D FLEX Ex 24V dc
Non-Isolated Source 4 Output
Module

Chapter 24

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 24-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3

Table 1: Entity Values for Field Device Connections . . . . . . . . 24-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 24-4

Chapter 25

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 25-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 25-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 25-4

1797-IE8 FLEX Ex 8 Input Analog
Module

Chapter 26

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 26-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 26-3

Table 1: Entity Values for Field Device Connections . . . . . . . . 26-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 26-4

Publication 1797-6.5.6 - June 2005

1797-IE8H FLEX Ex 8 Input HART
Analog Module

1797-IE8NF FLEX Ex 8 Input
Analog Module with Noise Filter

vii

Chapter 27

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 27-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 27-3

Table 1: Entity Values for Field Device Connections . . . . . . . . 27-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 27-4

Chapter 28

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 28-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 28-3

Table 1: Entity Values for Field Device Connections . . . . . . . . 28-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 28-4

1797-OE8 FLEX Ex 8 Output Analog
Module

Chapter 29

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 29-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 29-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 29-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 29-4

Publication 1797-6.5.6 - June 2005

viii

1797-OE8H FLEX Ex 8 Output HART
Analog Module

1797-IRT8 FLEX Ex
Thermocouple/RTD Input Module

Chapter 30

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 30-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 30-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 30-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 30-4

Chapter 31

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 31-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 31-3

Table 1: Entity Values for Field Device Connections . . . . . . . . 31-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-5

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 31-5

1797-IJ2 FLEX Ex Frequency Input
Module

1797-PS1N FLEX Ex Power Supply

Chapter 32

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 32-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 32-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 32-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 32-4

Chapter 33

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 33-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 33-2

Publication 1797-6.5.6 - June 2005

1797-PS2N2 FLEX Ex
Power Supply

1797-ACNR15 ControlNet Ex
Redundant Media Adapter

ix

Chapter 34

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-2

UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 34-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 34-2

Chapter 35

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-1

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-1

UL, cUL Entity Parameters and Requirements . . . . . . . . . . . . . . . . 35-2

UL, C-UL I/O Entity Parameters and Requirements . . . . . . . . 35-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-2

1797-RPA ControlNet Ex Modular
Repeater Adapter and 1797-RPFM
Fiber Repeater Module, Medium
Distance

1797-BCNR Redundant ControlNet
Ex Barrier

Chapter 36

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-2

UL, cUL Entity Parameters and Requirements . . . . . . . . . . . . . . . . 36-2

Chapter 37

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-2

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-2

Publication 1797-6.5.6 - June 2005

x

General FM Certification
Information

ControlNet Ex System

1797-TB3 FLEX Ex
Terminal Base Unit

FM Information

Chapter 38

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-1

Installation in Division 1/ Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . 38-2

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-3

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-3

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-3

Attention: Avoid electrostatic charge.. . . . . . . . . . . . . . . . . . . . . 38-3

Chapter 39

ControlNet Ex System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39-2

Describing the ControlNet Ex System Diagram . . . . . . . . . . . . . . . 39-3

Certified Equivalent ControlNet Ex System Diagram Items . . 39-4

Chapter 40

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-3

1797-TB3S FLEX Ex
Terminal Base Unit

1797-IBN16 FLEX Ex 16 NAMUR
Input Module

Chapter 41

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-1

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-2

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-3

Chapter 42

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 42-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-2

FM I/O Entity Parameters (Each Channel) . . . . . . . . . . . . . . . . . . . 42-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 42-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 42-4

Publication 1797-6.5.6 - June 2005

1797-OB4D FLEX Ex 24V dc
Non-Isolated Source 4 Output
Module

1797-IE8 FLEX Ex 8 Input Analog
Module

xi

Chapter 43

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 43-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 43-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-3

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 43-3

Chapter 44

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 44-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 44-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 44-4

1797-IE8H FLEX Ex 8 Input HART
Analog Module

1797-IE8NF FLEX Ex 8 Input Analog
Module with Noise Filter

Chapter 45

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 45-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 45-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 45-4

Chapter 46

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 46-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 46-3

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 46-4

Publication 1797-6.5.6 - June 2005

xii

1797-OE8 FLEX Ex 8 Output Analog
Module

1797-OE8H FLEX Ex 8 Output HART
Analog Module

Chapter 47

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 47-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 47-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-3

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 47-3

Chapter 48

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 48-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 48-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48-3

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 48-3

1797-IRT8 FLEX Ex
Thermocouple/RTD Input Module

1797-IJ2 FLEX Ex Frequency Input
Module

Chapter 49

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 49-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 49-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 49-4

Chapter 50

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-1

Wiring to a 1797-TB3 or -TB3S Terminal Base Unit. . . . . . . . . . . . 50-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-2

FM Input I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 50-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-4

Table 3: Flexbus Entity Values for this Module. . . . . . . . . . . . . 50-4

Publication 1797-6.5.6 - June 2005

1797-PS1N FLEX Ex Power Supply

1797-PS2N2 FLEX Ex
Power Supply

xiii

Chapter 51

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 51-2

Chapter 52

Installation in Division 1/

Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-1

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-1

Typical Wiring Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-2

FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-2

Table 1: Entity Values for Field Device Connections . . . . . . . . 52-2

1797-ACNR15 ControlNet Ex
Redundant Media Adapter

1797-RPA ControlNet Ex Modular
Repeater Adapter and 1797-RPFM
Fiber Repeater Module, Medium
Distance

1797-BIC Bus Isolator Module and
1797-CEC Flexbus Connector

Chapter 53

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-1

FM Entity Parameters and Requirements. . . . . . . . . . . . . . . . . . . . . 53-2

FM I/O Entity Parameters and Requirements. . . . . . . . . . . . . . 53-2

Table 2: Flexbus Entity Values Which are Allowed for the Next

FLEX Ex I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53-2

Chapter 54

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-1

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54-2

FM Entity Parameters and Requirements. . . . . . . . . . . . . . . . . . . . . 54-2

Chapter 55

General Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-1

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-3

Intrinsically Safe Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-3

Publication 1797-6.5.6 - June 2005

xiv

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

1

General CENELEC Certification Information

(1) keyswitch

(8) flexbus

cover

(2) terminal

base unit

General Installation

Label here or under here

FLEX Ex I/O modules must be used with a 1797-TB3 or -TB3S intrinsically
safe terminal base unit.

You will need to rotate the keyswitch (1) to the correct position depending on
the module. Refer to the module’s installation instructions for more
information. Do not change the position of the keyswitch after wiring the

terminal base unit.

Make certain that you only connect terminal base units to other intrinsically
safe system modules, adapters or power supplies to maintain the integrity of
the intrinsically-safe backplane.

Remove cap plug and attach another intrinsically safe terminal base unit to the
right of the terminal base unit (2) if required.

40231

41307

Do not remove the flexbus cover (8) on the right-most terminal base unit.

1 Publication 1797-6.5.6 - June 2005

1-2 General CENELEC Certification Information

Installation in Zone 1

Installation in Zone 22

Electrostatic Charge

European Community Directive Compliance

Modules, adapters, and terminal base units must not be exposed to the
environment. Provide a suitable enclosure. The modules, adapters, and
terminal base units have a protection factor of IP20.

ATTENTION

When the ControlNet Ex system is installed in Zone 22, all system
components (except the coax cable and ControlNet Ex taps) must be installed
in cabinets of the following type: IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW;
or IVK-ISRPI-V8LC. For more information on these cabinets, see page 1-4.

Protect the system against electrostatic charge. Post a sign near each module:
Attention! Avoid electrostatic charge. For your convenience, a sign which
can be cut out and posted is included in this chapter.

If this product has the CE mark it is approved for installation within the
European Community or EEA regions. It has been designed and tested to
meet the following directives.

Modules, adapters, and terminal base units cannot be used
in an intrinsically safe environment after they have been
exposed to non-intrinsically safe signals.

EMC Directive

All system components are tested to meet the Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC), as amended by 92/31/EC and
93/68/EEC, by applying the following standards as appropriate:

• EN61000-6-4:2001, Electromagnetic Compatibility (EMC) - Part 6-4:
Generic Standards - Emission Standard for Industrial Environments
(Class A)

• EN61000-6-2:2001, Electromagnetic Compatibility (EMC) - Part 6-2:
Generic Standards - Immunity for Industrial Environments

• EN61326:1997 + A1-A2, Electrical Equipment for Measurement,
Control, and Laboratory Use - Industrial EMC Requirements

LVD Directive

All power supplies are tested to meet the Council Directive 73/23/EEC Low
Voltage Directive, as amended by 93/68/EEC (LVD), by applying the
following standards as appropriate:

• EN50178:1997, Electronic Equipment for Use in Power Installations

Publication 1797-6.5.6 - June 2005

General CENELEC Certification Information 1-3

ATEX Directive

All system components are tested to meet the Council Directive 94/9/EC
Equipment and Protective Systems Intended for Use in Potentially Explosive
Atmospheres by applying the following standards, as appropriate:

• EN50014:1997 + A1-A2, Electrical Apparatus for Potentially Explosive
Atmospheres

• EN50018:1995, Electrical Apparatus for Potentially Explosive
Atmospheres - Flameproof Enclosure “d”

• EN50019:1996, Electrical Apparatus for Potentially Explosive
Atmospheres - Increased Safety “e”

• EN50020:1994, Electrical Apparatus for Potentially Explosive
Atmospheres - Intrinsic Safety “i”

• EN50021: 1999, Electrical Apparatus for Potentially Explosive
Atmospheres - Type of Protection “n”

• EN50281-1-1:1998 + A1, Electrical Apparatus for Use in the Presence
of Combustible Dust - Part 1-1: Protection by Enclosure

• EN50284:1999, Special requirements for construction, test and marking
of electrical apparatus of equipment group II, category 1G

Repair

The power supply is tested to meet the Council Directive 76/117/EC
Electrical Apparatus for Explosive Atmospheres by applying the following
standards:

• EN50014:1977 + A1-A5, Electrical Apparatus for Potentially Explosive
Atmospheres

• EN50018:1977 + A1-A3, Electrical Apparatus for Potentially Explosive
Atmospheres - Flameproof Enclosure “d”

• EN50019:1977 + A1-A5, Electrical Apparatus for Potentially Explosive
Atmospheres - Increased Safety “e”

• EN50020:1977 + A1-A5, Electrical Apparatus for Potentially Explosive
Atmospheres - Intrinsic Safety “i”

System components are not field-repairable. Any attempt to open a system
component will void the warranty and the IS certification. If repair is
necessary, return the system component to the manufacturer.

Attention: Avoid electrostatic charge.

Publication 1797-6.5.6 - June 2005

1-4 General CENELEC Certification Information

About Zone 22 Junction Boxes (Cabinets)

ATTENTION

ATTENTION

Pepperl+Fuchs junction boxes (type IVK2-ISRPI-V8LC,
IVK2-ISRPI-V8HYW, or IVK2-ISPRI-V16LC) ensures the basic protection
for the intrinsically safe apparatus of the FLEX Ex system for use in Zone 22.
It corresponds with category 3D according to RL 94/9 EG and with the type
label marked with the following information:

Pepperl+Fuchs GmbH
68301 Mannheim
IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or IVK2-ISRPI-V16LC)
EX (Hexagon) II 3D IP54 T 70°C
CE
Serial (manufacturing) number
Model

When installing, commissioning, operating, and
maintaining devices with intrinsically safe circuits, the
certificate of conformity of the devices, as well as the
applicable national and local construction, installation, and
operating regulations must be heeded (in Germany DIN
EN 50020, DIN VDE 0165).

Repairs to devices having intrinsically safe circuitry may
only be carried out by qualified personnel in accordance
with the valid regulations (Elex V).

Publication 1797-6.5.6 - June 2005

The maximum dissipation is limited to 60W for the IVK2-ISRPI-V8LC and
IVK2-ISRPI-V8HYW junction boxes and 120W for the IVK2-ISRPI-V16LC
junction box.

The maximum ambient temperature for the junction boxes complies with the
internal dissipation. It must be guaranteed that the cabinet internal
temperature 70°C is not exceeded (requirement to the installed FLEX Ex
equipment). For example, the IVK2-ISRPI-V8LC junction box has a
maximum ambient temperature of 45°C with maximum mounting.

All cable entries, which are not equipped with a cable, must be provided with a
seal designated for it (IP54). Drillings in the housing, which are not used due
to less assembly, must be closed seal (IP54).

Close the junction box with the provided key after the assembly and mounting.
If the junction box must be opened for maintenance purposes during
operation, exercise care to prevent dust from penetrating inside of the
enclosure.

ControlNet Ex System

Chapter

2

Adapter

1797-ACNR15

Field Power
Connection Terminals

PWR

Bus Connectors

Terminal Strips

Terminal Base

Keyswitch

Flexbus Connector

Ex I/O Module

Ex

PWR

20125-M

1 Publication 1797-6.5.6 - June 2005

2-2 ControlNet Ex System

ControlNet Ex System Diagram

Node 4 ... 48

RSD-GW-Ex2.CN

1797-ACNR15/* or

1W

Li negl.

Ci negl.

Flexbus

.

Lo=10µH

Uo=5.4V,

Co=65µF,

.

Io=400mA,

Po=2.16W,

.

.

Power Supply Ui=9.5V,

ChB

ChA

Ii=1A,

Ci<120nF,

Li=negligible

>500kHz

-3

Uo=5.4V,

Io=160mA,

F

>500kHz

Uo=5.4V,

-3

Io=160mA,

F

trk trm

CNet Ex

75 Ohm

tap

ControlNet Ex

C.

o

0.95dB/100m 10MHz > 1.86dB/100m

1.16dB/100m 50MHz > 4. 33dB/100m

C) 0.2MHz > 0.93dB/100m 5MHz > 1.39dB/100m

o

coax trunk cable

Flexbus

.

2

.

Node 3

RSD-GW-Ex2.CN

1797-ACNR15/* or

The ControlNet Ex System is an intrinsically safe system according to EN 50039. When installing the

system, the certificate of conformity and the national installation regulations must be heeded. The

components of the ControlNet Ex system and the interconnections are shown on the installation

drawing (A-B Pub. 1797-6.5.6).

For the transmittal between the safe area and the hazardous area only optical glass-fibers are

permitted. The diameter of a single glass-fiber must be >6um. The power density of the transmitter

diode must be <5mW/mm

Protect the system against electrostatic charge. Post a sign near the main components of the system:

Attention! Avoid electrostatic charge.

.

.

1797-RPFM/* or

RSD-FC-Ex2.CN 3km

1797-RPFM/* or

RSD-FC-Ex2.CN 3km

Node 2

Zone 1

1797-RPA/* or

RSD-CFA-Ex.CN

Hazardous Area

.

.

.

.

.

Power Supply Ui=9.5V,

.

>500kHz

Uo=5.4V,

-3

Io=201mA,

F

.

Ch1

fiber

Ch0

fiber

Ii=1A,

Ci<120nF,

Li=negligible

Lo=10µH

Uo=5.4V,

Co=65µF,

Po=2.16W,

Io=400mA,

.

1

.

Ch1

Ch0

Ii=1A,

Ci<120nF,

Li=negligible

Power Supply Ui=9.5V,

>500kHz

-3

ChB

Uo=5.4V,

Io=160mA,

F

ChA

>500kHz

Uo=5.4V,

-3

Io=160mA,

F

fiber

fiber

tap

ControlNet Ex

The ambient temperature range of the ControlNet Ex system is -20 to +70

The Coax Trunk Cable is permitted to have a maximum length of 1,000m with only 2 connected

ControlNet Ex Taps dropping to only 250m with the maximum allowed connected ControlNet Ex

Taps of 48.

coax trunk cable

Cable type 1189A, 3092A, or

3092A Blue from manufacturer

Belden Wire or type RG6-CNet*

tap

ControlNet Ex

tap trm

CNet Ex

Ci < 60pF

ControlNet Ex tap

Li < 560nH

Li < 1100uH Li < 1100uH

Node 1

5.94nF per 100m

0.5MH z >

Cable Capacitance <

Cable Resistance >9.08 Ohm per 100m

Cable Attenuation (-20 to +70

1M Hz > 1.07dB/100m 20MHz > 2.73dB/100m

2M Hz >

*RG6-CNet is defined as: Cable Impedance = 75 Ohm + or - 3 Ohm

Near the main components of the system a plate with the system marking must be attached. If

the system is installed in a cabinet the plate must be fixed on the inside of the cabinet door.

Li negl.

Ci < 68pF

.

RS-FB-Ex2.CN

Safe Area

1797-BCNR or

Publication 1797-6.5.6 - June 2005

.

.

CNet

Zone 0

Hazardous Area

30670-M

ControlNet Ex System 2-3

Describing the ControlNet Ex System Diagram

System
Diagram
Name

1797-RPA 1797-RPA ControlNet Ex Modular

1797-RPFM 1797-RPFM ControlNet Ex Fiber

1797-ACNR15 1797-ACNR15 Redundant Media

1797-BCNR 1797-BCNR Redundant ControlNet

CNet Ex
Tap Trm

ControlNet Ex
Tap

CNet Ex
Trk Trm

Coax Trunk
Cable

None None Standard Coax Trunk

A maximum of 48 ControlNet ExTM nodes may be connected together by
250m of coax cable and 48 taps. The distance increases to 1000m when you
use only 2 taps. See the table below for more information.

The fiber media of the 1797-RPFM can be installed in a hazardous location
(Zone 0, 1 or 2) to connect two 1797-RPFM modules or they can be installed
through different locations into the non-hazardous location to connect the
1797-RPFM with any approved associated apparatus.

All cables and fiber media that are not light blue must be marked as IS using
the 1797-EXMK marking kit or other locally approved IS identification
and/or segregation method.

During the installation of the ControlNet Ex system, all metallic parts must be
isolated to prevent an earth connection (high voltage withstanding of isolating
material must be > 500V ac).

Catalog Number Catalog Name Description

Represents one ControlNet Ex node and

Repeater Adapter

Repeater Module,
Medium Distance

ControlNet Ex Adapter

Ex Barrier

1797-TCAP ControlNet Ex Tap

(Dummy) Terminator

1797-TPx ControlNet Ex Coax

Tap

1797-XT ControlNet Ex Trunk

Termin at or

1786-RG6 Quad-Shield, RG-6

75Ω Coax Trunk Cable

Cable BNC Couplers

must be connected to a coax trunk cable
by
1797-TPx

Allows connection of a maximum of two
devices per 1797-RPA and is powered
directly by 1797-RPA

Represents one ControlNet Ex node and
must be connected to a coax trunk cable
by
1797-TPx -each one with two redundant
output channels that are connected to
different ControlNet Ex networks (coax
cables and 1797-TPx)

Allows connection between ControlNet and
ControlNet Ex networks

Represents one ControlNet Ex node and is
a simple capacitor (56pF) with a coax
connector

Four types of connections available: S
(straight t-tap), R (right angle t-tap), YS
(straight y-tap), and YR (right angle y-tap)

- a maximum of 48 taps can be connected
together by coax trunk cable

Simple resistor (75Ω) with coax connector
that must be on each end of the ControlNet
Ex coax trunk for termination

Maximum (functional) length between 2
1797-TPx is 3280ft (1000m) - each
1797-TPx reduces the (functional) coax
cable length by 53.4ft (16.3m)

Different standard cable couplers, 90o,

o

180

, etc.

Publication 1797-6.5.6 - June 2005

2-4 ControlNet Ex System

Certified Equivalent ControlNet Ex System Diagram Items

You may use these items as equivalents for the items shown on the system
diagram.

System Diagram Name Catalog Number Source

1797-RPA 1797-RPA Allen-Bradley

RSD-CFA-Ex.CN Pepperl+Fuchs

1797-RPFM 1797-RPFM Allen-Bradley

RSD-FC-Ex2.CN Pepperl+Fuchs

1797-ACNR15 1797-ACNR15 Allen-Bradley

RSD-GW-Ex2.CN Pepperl+Fuchs

1797-BCNR 1797-BCNR Allen-Bradley

RS-FB-Ex2.CN Pepperl+Fuchs

Coax Trunk Cable

1

1786-RG6 Allen-Bradley

2

3092A

Belden Wire & Cable Co.

3092A with blue jacket Belden Wire & Cable Co.

ControlNet Ex Tap 1797-TPx Allen-Bradley

RS-TPx-Ex Pepperl+Fuchs

CNet Ex Trk Trm 1797-XT Allen-Bradley

RS-XT-Ex Pepperl+Fuchs

CNet Ex Tap Trm 1797-TCAP Allen-Bradley

RS-TCAP-Ex Pepperl+Fuchs

1 In addition to these cable types, the following specification can be followed to allow additional types:

Cable Impedance = 75Ω ± 3Ω
Cable Capacitance = <
Cable Resistance = >
Cable Attenuation 0.2MHz >

(-20 to +70

2 Belden Wire & Cable 1189A may be used, but with functional loss of communication distance and/or nodes.

o

C) 0.5MHz > 0.95dB/100m 10MHz > 1.86dB/100m

5.94nF per 100m

9.08Ω per 100m

1MHz >
2MHz >

0.93dB/100m 5MHz > 1.39dB/100m

1.07dB/100m 20MHz > 2.73dB/100m

1.16dB/100m 50MHz > 4.33dB/100m

Publication 1797-6.5.6 - June 2005

ControlNet Ex System 2-5

Installation in Zone 1

Modules must not be exposed to the environment. Provide a suitable metal
enclosure. A label with this system marking must be attached near the main
components of the system. If the system is installed in a cabinet, this label
must be fixed inside the cabinet.

Allen-Bradley
1 Allen-Bradley Dr.

Mayfield Hts., OH USA

ControlNet Ex System

DMT 99 ATEX E 065 X
II (1) 2G SYST EEx ia/ib IIB/C T4

-200C <= Ambient Temperature <= +700C

0102

Attention!
Avoid electrostatic charging!

ATTENTION

Modules cannot be used in an intrinsically safe
environment after they have been exposed to
non-intrinsically safe signals.

Installation in Zone 22

Electrostatic Charge

Repair

When the ControlNet Ex system is installed in Zone 22, all system
components (except the coax cable and ControlNet taps) must be installed in
cabinets of the following type: IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW; or
IVK-ISRPI-V8LC. For more information on these cabinets, see page 1-4.

Protect the system against electrostatic charge. Post a sign near each module:
Attention! Avoid electrostatic charge. For your convenience, a sign which
can be cut out and posted is included in this chapter.

Modules are not field-repairable. Any attempt to open a module will void the
warranty and the IS certification. If repair is necessary, return the module to
the manufacturer.

Attention: Avoid electrostatic charge.

Publication 1797-6.5.6 - June 2005

2-6 ControlNet Ex System

General Specifications

ATTENTION

When installing, commissioning, operating, and
maintaining devices with intrinsically safe circuits, the
certificate of conformity of the devices, as well as the
applicable national and local construction, installation, and
operating regulations must be heeded (in Germany DIN
EN 50020, DIN VDE 0165).

ATTENTION

Repairs to devices having intrinsically safe circuitry may
only be carried out by qualified personnel in accordance
with the valid regulations (Elex V).

Operational Temperature -20 to 70oC (-4 to 158oF)

Agency Certification II (1) 2G SYST EEx ia/ib IIB/IIC T4

Certificates DMT 99 ATEX E 065 X

Publication 1797-6.5.6 - June 2005

(1) keyswitch

1797-TB3 FLEX Ex Terminal Base Unit

Chapter

3

Label here

General Information

Module Installation

(8) flexbus

cover

FLEX Ex I/O modules must be used with a 1797-TB3 or -TB3S intrinsically
safe terminal base unit.

You will need to rotate the keyswitch (1) to the correct position depending on
the module. Refer to the module’s installation instructions for more
information. Do not change the position of the keyswitch after wiring the

terminal base unit.

Make certain that you only connect terminal base units to other intrinsically
safe system modules or adapters to maintain the integrity of the
intrinsically-safe backplane.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 2728 29 30 31 32 33

34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 5044 51

42332

41307

Do not remove the flexbus cover (8) on the right-most terminal base unit.

1 Publication 1797-6.5.6 - June 2005

3-2 1797-TB3 FLEX Ex Terminal Base Unit

Inputs

Description

Do not apply any non-intrinsically safe signals to the terminal base.

When using as an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The terminals in the terminal base unit may be electrically connected to each
other by the insertion of FLEX Ex I/O modules. See the module installation
instructions to determine this.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety
requirements.

The 1797-TB3 terminal base has 36 wiring connections to/from a plug-in
module. The use of each terminal depends on the module mounted in this
base.

The 1797-TB3 terminal base also has connections for cold junction
compensation and terminals designated for shield termination to chassis
ground.

The terminal base is equipped with a factory-installed tab cover for the
backplane bus connection. The tab cover may be removed only when the
terminal base unit is connected to other terminal base units..

Wiring Connections for Terminal Base 1797-TB3

01 32 4 5 6 7 8 9 10 1112131415

A

26 27 28 29 30 31 32 3325242322212019181716

B

44 45 46 47 48 49 50 5143424140393837363534

C

+V -V -V+V

ATTENTION

No connections allowed to terminals 36 and 49

• Make certain that you power the terminal base unit with
an intrinsically safe power supply. Do not exceed the

41252

values listed in the specifications for the terminal base
unit.

• Do not use the unused terminals on the terminal base
unit. Using these terminals as supporting terminals can
result in damage to modules and/or unintended
operation of your system.

Publication 1797-6.5.6 - June 2005

1797-TB3 FLEX Ex Terminal Base Unit 3-3

Intrinsically Safe Specifications

For a full list of specifications, refer to the FLEX Ex Terminal Base
Installation Instructions, publication 1797-5.1.

Terminals Assignments

+34, -35, +50, -51, and 96

pin

female I/O connector

i

30-32, 62-64, 94-96

pins

i

i

36, 49
All Other Terminals

Flexbus Connection Intrinsically Safe U

Operational Temperature -20 to 70

Agency Certification II 2G EEx ia IIC T4

Certificates DMT 98 ATEX E012 U

Only for intrinsically safe circuits
U

<10V dc

i

<2.5A

I

i

< 1nF

C

i

Negligible

L

i

Must not be used for any connection

<30V dc

U

i

<100mA

I

i

<1nF

C

i

Negligible

L

i

<10V dc

i

<400mA

I

i

<1nF

C

i

L

Negligible

i

o

C (-4 to 158oF)

Publication 1797-6.5.6 - June 2005

3-4 1797-TB3 FLEX Ex Terminal Base Unit

Notes:

Publication 1797-6.5.6 - June 2005

(1) keyswitch

Chapter

1797-TB3S FLEX Ex Terminal Base Unit

4

Label here

General Information

Module Installation

(8) flexbus

cover

42333

FLEX Ex I/O modules must be used with a 1797-TB3 or -TB3S intrinsically
safe terminal base unit.

You will need to rotate the keyswitch (1) to the correct position depending on
the module. Refer to the module’s installation instructions for more
information. Do not change the position of the keyswitch after wiring the

terminal base unit.

Make certain that you only connect terminal base units to other intrinsically
safe system modules or adapters to maintain the integrity of the
intrinsically-safe backplane.

41307

Do not remove the flexbus cover (8) on the right-most terminal base unit.

1 Publication 1797-6.5.6 - June 2005

4-2 1797-TB3S FLEX Ex Terminal Base Unit

Inputs

Description

Do not apply any non-instrinsically safe signals to the terminal base.

When using as an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The terminals in the terminal base unit may be electrically connected to each
other by the insertion of FLEX Ex I/O modules. See the module installation
instructions to determine this.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety
requirements.

The 1797-TB3S terminal base has 36 wiring connections to/from a plug-in
module. The use of each terminal depends on the module mounted in this
base.

The 1797-TB3S terminal base also has connections for cold junction
compensation and terminals designated for shield termination to chassis
ground.

The terminal base is equipped with a factory-installed tab cover for the
backplane bus connection. The tab cover may be removed only when the
terminal base unit is connected to other terminal base units.

Wiring Connections for Terminal Base 1797-TB3S

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

18 19 20 21 22 23 3324 25 26 27 28 29 30 31 3217

16

35 36 37 38 47 48 49 5034

39 40 41 42 43 44 45 46

Label placed at top of wiring area

Row A
Row B

51

Row C

Publication 1797-6.5.6 - June 2005

ATTENTION

+V -V -V+V

No connections allowed to terminals 36 and 49

• Make certain that you power the terminal base unit with
an intrinsically safe power supply. Do not exceed the
values listed in the specifications for the terminal base
unit.

• Do not use the unused terminals on the terminal base
unit. Using these terminals as supporting terminals can
result in damage to modules and/or unintended
operation of your system.

Row A

Row B

Row C

41254

1797-TB3S FLEX Ex Terminal Base Unit 4-3

Intrinsically Safe Specifications

For a full list of specifications, refer to the FLEX Ex Spring Clamp Terminal
Base Installation Instructions, publication 1797-5.2.

Terminals Assignments

+34, -35, +50, -51, and 96

pin

female I/O connector

i

30-32, 62-64, 94-96

pins

i

i

36, 49
All Other Terminals

Flexbus Connection Intrinsically Safe U

Operational Temperature -20 to 70

Agency Certification II 2G EEx ia IIC T4

Certificates DMT 98 ATEX E012 U

Only for intrinsically safe circuits
U

<10V dc

i

<2.5A

I

i

< 1nF

C

i

Negligible

L

i

Must not be used for any connection

<30V dc

U

i

<100mA

I

i

<1nF

C

i

Negligible

L

i

<10V dc

i

<400mA

I

i

<1nF

C

i

L

Negligible

i

o

C (-4 to 158oF)

Publication 1797-6.5.6 - June 2005

4-4 1797-TB3S FLEX Ex Terminal Base Unit

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

5

1797-IBN16 FLEX Ex 16 NAMUR Input Module

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 6 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each input can be operated from a NAMUR sensor or a mechanical contact (if
mechanical inputs are used). Do not apply any non-intrinsically safe

signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other and have a
common plus-line.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

5-2 1797-IBN16 FLEX Ex 16 NAMUR Input Module

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

+-

Ch 0

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

+-

Ch 8

34 35 36 37 38 39 4 0 41 42 43 44 45 46 47 48 49 50 51

Row C

+V -V +V -V

Connect wiring to the terminal base as shown below.

+-

Ch 1

+-

Ch 9

ATTENTION

+-

Ch 2

+-

Ch 10

+-

Ch 3

+-

Ch 11

No connection allowed to terminals 36 and 49

+-

Ch 4

+-

Ch 12

+-

Ch 5

+-

Ch 13

Do not use any unused terminals on this terminal base unit.

+-

Ch 6

+-

Ch 14

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

+-

Ch 7

+-

Ch 15

41504

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex 16 NAMUR Input Module
Installation Instructions, publication 1797-5.7.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature -20 to +70

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 013 X

Ui < 5.8V

< 400mA

I

i

Li = Negligible
Ci = Negligible

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

o

C (-4 to +158oF)

II (1D) (2D)

Publication 1797-6.5.6 - June 2005

CE/CENELEC I/O Entity Parameters (Each Channel)

U

< 14.5V

o

< 15mA

I

o

< 40mW

P

o

Characteristic:
linear

1797-IBN16 FLEX Ex 16 NAMUR Input Module 5-3

Protection Group Allowed

Capacitance

EEx ia IIB 1µF 10mH 2.6mH/Ω

EEx ia IIC 300nF 2mH 0.65mH/Ω

Allowed
Inductance

Lo/Ro Ratio

Publication 1797-6.5.6 - June 2005

5-4 1797-IBN16 FLEX Ex 16 NAMUR Input Module

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

6

1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module

General Information

Module Installation

Outputs

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 7 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each output can operate a discrete field device. Do not apply any
non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other.

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

++++----

ch0 ch1 ch2 ch3

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

34 35 36 37 38 39 4 0 41 42 43 44 45 46 47 48 49 50 51

Row C

+V +V-V -V

1 Publication 1797-6.5.6 - June 2005

No connections allowed to terminals 2, 3, 6, 7, 10, 11, 14, 15, 17 to 32, 36, 37,
38, 39, 46, 47, 48, 49

40068

6-2 1797-OB4D FLEX Ex 24V dc Non-Isolated Source 4 Output Module

Intrinsically Safe Specifications

ATTENTION

Do not use any unused terminals on this terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

For a full list of specifications, refer to FLEX Ex 24V dc Non-Isolated Source
4 Output Module Installation Instructions, publication 1797-5.6.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature -20 to +70

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 040 X

Ui < 5.8V

< 400mA

I

i

Li = Negligible
Ci = 1.35

U

< 1A

I

i

L
C

II (1D) (2D)

µF

< 9.5V dc

i

= Negligible

i

< Negligible

i

o

C (-4 to +158oF)

CE/CENELEC I/O Entity Parameters

Publication 1797-6.5.6 - June 2005

Signal output (+ to -) for ch 0 to ch 3 (terminals: 0-1; 4-5; 8-9; 12-13)

1797-OB4D
U

= 27.4V

o

= 110mA

I

o

If
concentrated
capacitance
and/or
inductance
are available,
use the
following
values.

Protection Group Allowed

Capacitance

EEx ia IIB 677nF 8mH

IIC 87nF 2mH

EEx ia IIB 150nF 5mH

IIC 30nF 2mH

Allowed
Inductance

Chapter

1797-IE8 FLEX Ex 8 Input Analog Module

7

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 3 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each input can be operated from an analog field device signal. Do not apply
any non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other and have a
common plus-line.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

7-2 1797-IE8 FLEX Ex 8 Input Analog Module

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V -V +V -V

Connect wiring to the terminal base as shown below.

+-+-+-+-

sigsigsigsig

No connection
allowed

ATTENTION

Ch 2Ch 1Ch 0

Do not use any unused terminals on this terminal base unit.

Ch 3

+-+-+-+-

sigsigsigsig

Ch 7Ch 6Ch 5Ch 4

Ch 7

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

40071

No connection
allowed

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex 8 Input Analog Module
Installation Instructions, publication 1797-5.5.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 020 X

Ui < 5.8V

< 400mA

I

i

L

= Negligible

i

< 1.35µF

C

i

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

-20 to +70

II (1D) (2D)

o

C (-4 to +158oF)

Publication 1797-6.5.6 - June 2005

1797-IE8 FLEX Ex 8 Input Analog Module 7-3

CE/CENELEC I/O Entity Parameters

Measurement input (sig to -) for ch 0 to ch 7 (terminals: 1-2; 5-6; 9-10; 13-14;
18-19; 22-23; 26-27; 30-31)

U

= 5V

o

= 1mA

I

o

= 1.3mW

P

o

= 28V

U

i

= 93mA

I

i

C

and Li

i

negligible

Protection Group Allowed

Capacitance

EEx ia IIB 1000µF 1H

IIC 100µF 1H

Allowed
Inductance

Source output (+ to sig) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)

= 23.7V

U

o

= 92.5mA

I

o

= 548mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Source output plus measurement input (+ to -) for ch 0 to ch 7 (terminals: 0-2;
4-6; 8-10; 12-14; 17-19; 21-23; 25-27; 29-31)

U

= 23.7V

o

= 93.5mA

I

o

= 555mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Publication 1797-6.5.6 - June 2005

7-4 1797-IE8 FLEX Ex 8 Input Analog Module

Notes:

Publication 1797-6.5.6 - June 2005

1797-IE8H FLEX Ex 8 Input HART Analog Module

Chapter

8

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 3 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each input can be operated from an analog field device signal. Do not apply
any non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other and have a
common plus-line.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

8-2 1797-IE8H FLEX Ex 8 Input HART Analog Module

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V -V +V -V

Connect wiring to the terminal base as shown below.

+-+-+-+-

sigsigsigsig

No connection
allowed

ATTENTION

Ch 2Ch 1Ch 0

Do not use any unused terminals on this terminal base unit.

Ch 3

+-+-+-+-

sigsigsigsig

Ch 7Ch 6Ch 5Ch 4

Ch 7

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

40071

No connection
allowed

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex Analog Input Modules
Installation Instructions, publication 1797-5.5.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 020 X

Ui < 5.8V

< 400mA

I

i

L

= Negligible

i

< 1.35µF

C

i

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

-20 to +70

II (1D) (2D)

o

C (-4 to +158oF)

Publication 1797-6.5.6 - June 2005

1797-IE8H FLEX Ex 8 Input HART Analog Module 8-3

CE/CENELEC I/O Entity Parameters

Measurement input (sig to -) for ch 0 to ch 7 (terminals: 1-2; 5-6; 9-10; 13-14;
18-19; 22-23; 26-27; 30-31)

U

= 5V

o

= 1mA

I

o

= 1.3mW

P

o

= 28V

U

i

= 93mA

I

i

C

and Li

i

negligible

Protection Group Allowed

Capacitance

EEx ia IIB 1000µF 1H

IIC 100µF 1H

Allowed
Inductance

Source output (+ to sig) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)

= 23.7V

U

o

= 92.5mA

I

o

= 548mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Source output plus measurement input (+ to -) for ch 0 to ch 7 (terminals: 0-2;
4-6; 8-10; 12-14; 17-19; 21-23; 25-27; 29-31)

U

= 23.7V

o

= 93.5mA

I

o

= 555mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Publication 1797-6.5.6 - June 2005

8-4 1797-IE8H FLEX Ex 8 Input HART Analog Module

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter

9

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 3 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each input can be operated from an analog field device signal. Do not apply
any non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other and have a
common plus-line.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

9-2 1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V -V +V -V

Connect wiring to the terminal base as shown below.

+-+-+-+-

sigsigsigsig

No connection
allowed

ATTENTION

Ch 2Ch 1Ch 0

Do not use any unused terminals on this terminal base unit.

Ch 3

+-+-+-+-

sigsigsigsig

Ch 7Ch 6Ch 5Ch 4

Ch 7

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

40071

No connection
allowed

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex Analog Input Modules
Installation Instructions, publication 1797-5.5.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 020 X

Ui < 5.8V

< 400mA

I

i

L

= Negligible

i

< 1.35µF

C

i

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

-20 to +70

II (1D) (2D)

o

C (-4 to +158oF)

Publication 1797-6.5.6 - June 2005

1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter 9-3

CE/CENELEC I/O Entity Parameters

Measurement input (sig to -) for ch 0 to ch 7 (terminals: 1-2; 5-6; 9-10; 13-14;
18-19; 22-23; 26-27; 30-31)

U

= 5V

o

= 1mA

I

o

= 1.3mW

P

o

= 28V

U

i

= 93mA

I

i

C

and Li

i

negligible

Protection Group Allowed

Capacitance

EEx ia IIB 1000µF 1H

IIC 100µF 1H

Allowed
Inductance

Source output (+ to sig) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)

= 23.7V

U

o

= 92.5mA

I

o

= 548mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Source output plus measurement input (+ to -) for ch 0 to ch 7 (terminals: 0-2;
4-6; 8-10; 12-14; 17-19; 21-23; 25-27; 29-31)

U

= 23.7V

o

= 93.5mA

I

o

= 555mW

P

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 560nF 10mH

IIC 66nF 2.5mH

EEx ia IIB 320nF 10mH

IIC 60nF 2mH

Allowed
Inductance

Publication 1797-6.5.6 - June 2005

9-4 1797-IE8NF FLEX Ex 8 Input Analog Module with Noise Filter

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

10

1797-OE8 FLEX Ex 8 Output Analog Module

General Information

Module Installation

Outputs

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 4 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each output channel can operate an analog field device. Do not apply any
non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European Community directives and regulations must be followed.

The channels in this module are electrically connected to each other.

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

+- + - + - + -

ch0

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

++++----

ch4 ch5 ch6

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V +V-V -V

1 Publication 1797-6.5.6 - June 2005

ch1 ch2 ch3

ch7

No connections allowed to terminals 2, 3, 6, 7, 10, 11, 14, 15, 19, 20, 23,
24, 27, 28, 31, 32, 36, 37, 38, 39, 46, 47, 48, 49

41440

10-2 1797-OE8 FLEX Ex 8 Output Analog Module

General Specifications

ATTENTION

Do not use any unused terminals on this terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

For a full list of specifications, refer to FLEX Ex 8 Analog Output Modules
Installation Instructions, publication 1797-5.3.

Output (Intrinsically Safe)

(16 pin male and female
flexbus connector)

Power Supply

(+V, -V Intrinsically Safe)

Operational Temperature

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 00 ATEX E 042 X

Ui < 5.8V dc

< 400mA

I

i

L

= Negligible

i

< 1.35µF

C

i

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

-20 to +70

II (1D) (2D)

o

C (-4 to +158oF)

CE, CENELEC I/O Entity Parameters

Publication 1797-6.5.6 - June 2005

Signal output (+ to -) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)

U

= 21V

o

= 100mA

I

o

P

= 520mW

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 1.27µF8mH

IIC 188nF 2mH

EEx ia IIB 295nF 10mH

IIC 70nF 2mH

Allowed
Inductance

Chapter

1797-OE8H FLEX Ex 8 Output HART Analog Module

11

General Information

Module Installation

Outputs

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 4 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each output channel can operate an analog field device. Do not apply any
non-intrinsically safe signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European Community directives and regulations must be followed.

The channels in this module are electrically connected to each other.

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Row A

+- + - + - + -

ch0

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

Row B

++++----

ch4 ch5 ch6

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V +V-V -V

1 Publication 1797-6.5.6 - June 2005

ch1 ch2 ch3

ch7

No connections allowed to terminals 2, 3, 6, 7, 10, 11, 14, 15, 19, 20, 23,
24, 27, 28, 31, 32, 36, 37, 38, 39, 46, 47, 48, 49

41440

11-2 1797-OE8H FLEX Ex 8 Output HART Analog Module

General Specifications

ATTENTION

Do not use any unused terminals on this terminal base unit.
Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

For a full list of specifications, refer to FLEX Ex 8 Analog Output Modules
Installation Instructions, publication 1797-5.3.

Output (Intrinsically Safe)

(16 pin male and female
flexbus connector)

Power Supply

(+V, -V Intrinsically Safe)

Operational Temperature

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 00 ATEX E 042 X

Ui < 5.8V dc

< 400mA

I

i

L

= Negligible

i

< 1.35µF

C

i

< 9.5V dc

U

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

-20 to +70

II (1D) (2D)

o

C (-4 to +158oF)

CE, CENELEC I/O Entity Parameters

Publication 1797-6.5.6 - June 2005

Signal output (+ to -) for ch 0 to ch 7 (terminals: 0-1; 4-5; 8-9; 12-13; 17-18;
21-22; 25-26; 29-30)

U

= 21V

o

= 100mA

I

o

P

= 520mW

o

If concentrated
capacitance
and/or
inductance are
available, use the
following values.

Protection Group Allowed

Capacitance

EEx ia IIB 1.27µF8mH

IIC 188nF 2mH

EEx ia IIB 295nF 10mH

IIC 70nF 2mH

Allowed
Inductance

Chapter

1797-IRT8 FLEX Ex Thermocouple/RTD Input Module

12

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 2 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

Each input can be operated from a thermocouple (TC) or resistance
temperature detector (RTD). Do not apply any non-intrinsically safe

signals to this module.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in this module are electrically connected to each other and have a
common plus-line.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

12-2 1797-IRT8 FLEX Ex Thermocouple/RTD Input Module

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

Row A

Row B

Row C

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

+L

H-+ LH-+ LH-+LH-

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

+LH-+ LH-+ LH-+LH-

34 35 36 37 38 39 4 0 41 4 2 43 44 45 46 47 48 49 50 51

+V CJC -V

-V CJC

ATTENTION

0+ 0- 1-1+

chassis
GND for
shield

No connection allowed to terminals 36 and 49

Do not use any unused terminals on this terminal base unit.

Ch 2Ch 1Ch 0 Ch 3

Ch 7Ch 6Ch 5Ch 4

Ch 7

chassis
GND for
shield

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

+V

41505

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex Thermocouple/RTD Input
Module Installation Instructions, publication 1797-5.4.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operational Temperature -20 to +70

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 023X

Ui < 5.8V

< 400mA

I

i

Li = Negligible

1.35µF

Ci <

U

< 9.5V dc

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

o

C (-4 to 158oF)

II (1D) (2D)

Publication 1797-6.5.6 - June 2005

1797-IRT8 FLEX Ex Thermocouple/RTD Input Module 12-3

CE/CENELEC I/O Entity Parameters

Input circuits (+ to -) for ch0 to ch7 (terminals: 0-3; 4-7; 8-11; 12-15; 17-20;
21-24; 25-28; 29-32)

U

= 9V

o

= 37mA

I

o

= 83mW

P

o

Protection Group Allowed

Capacitance

EEx ia IIB 40µF 80mH 1.7mH/Ω

EEx ia IIC 4.9µF 20mH 0.4mH/Ω

Allowed
Inductance

Lo/Ro Ratio

CJC circuits (+ to -) for CJC0 and CJC1 (terminals: 37, 39; 46, 48)

U

= 9V

o

= 1mA

I

o

P

= 3mW

o

Protection Group Allowed

Capacitance

EEx ia IIB 40µF 1H 63mH/Ω

EEx ia IIC 4.9µF 1H 15mH/Ω

Allowed
Inductance

L

o/Ro

Ratio

Input circuits (+ to -) for ch0 to ch7 and CJC circuits (+ to -) for CJC0 and
CJC1 (terminals 0-3, 37, 39; 4-7, 37, 39; 8-11, 37, 39; 12-15, 37, 39; 17-20, 37,
39; 21-24, 37, 39; 25-28, 37, 39; 29-32, 37, 39; 0-3, 46, 48; 4-7, 46, 48; 8-11, 46,
48; 12-15, 46, 48; 17-20, 46, 48; 21-14, 46, 48; 25-28, 46, 48; 29-32, 46, 48)

U

= 9V

o

= 38mA

I

o

= 86mW

P

o

Protection Group Allowed

Capacitance

Allowed
Inductance

L

o/Ro

Ratio

EEx ia IIB 40µF 80mH 1.7mH/Ω

EEx ia IIC 4.9µF 20mH 0.4mH/Ω

Publication 1797-6.5.6 - June 2005

12-4 1797-IRT8 FLEX Ex Thermocouple/RTD Input Module

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

13

1797-IJ2 FLEX Ex Frequency Input Module

General Information

Module Installation

Inputs

Modules must be used with a 1797-TB3 or -TB3S intrinsically safe terminal
base unit.

Rotate keyswitch on terminal base unit clockwise to position 1 as required for
this type of module. Do not change the position of the keyswitch after

wiring the terminal base unit.

The frequency input module has 2 input channels. Each input can accept
inputs from magnetic pickups or proximity probes. Each input channel has 2
input selections: frequency input or gate input. Do not apply any

non-intrinsically safe signals to this module.

The channels in this module are electrically connected to each other.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

IMPORTANT

When interconnecting several lines, you must consider the
total accumulated power and check for intrinsic safety.

1 Publication 1797-6.5.6 - June 2005

13-2 1797-IJ2 FLEX Ex Frequency Input Module

Wiring to a 1797-TB3 or

-TB3S Terminal Base Unit

Row A

Row B

Row C

Connect wiring to the terminal base as shown below.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

3V V+

6V GND 50

16 17 18 19 20 21 22 23 24 2 5 26 27 28 2 9 30 31 32 33

R0 NO R0 NC

+V -V

ATTENTION

Channel 0 Frequency Input Channel 1 Frequency Input

34 35 36 37 38 39 4 0 41 42 43 44 45 46 47 48 49 50 51

-V

mV
Sel

GND 50

mV
Sel

Channel 0 Gate Input Channel 1 Gate Input

No connection allowed to terminals 19, 30, 36, 38, 39, 47, 48, 49

Do not use any unused terminals on this terminal base unit.

N500/50 mV8V 8V N GND 6VV+ 3V

N500/50 mV8V 8V N 50

50

500/50

mV

500/50 mVGND R1 NOR1 NC

mV
Sel

mV
Sel

GND

Using these terminals as supporting terminals can result in
damage to the module and/or unintended operation of
your system.

+VR0 COM R1 COM

42334

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex Frequency Input Module
Installation Instructions, publication 1797-5.7.

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operating Temperature -20 to +70

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 98 ATEX E 033 X

Uo < 5.8V

< 400mA

I

o

Li = Negligible

2.64µF

Ci <

U

< 9.5V dc

i

< 1A

I

i

= Negligible

L

i

= Negligible

C

i

o

C (-4 to +158oF)

II (1D) (2D)

Publication 1797-6.5.6 - June 2005

1797-IJ2 FLEX Ex Frequency Input Module 13-3

CE/CENELEC Input I/O Entity Parameters

Channel 0 Frequency Input

Field devices may only be connected to the terminals of one of the five
following circuits. The terminals of the remaining four circuits must not be
connected.

Namur/Con
tact
(terminals
6-7)

= 14.7V

U

o

I

= 15mA

o

P

= 30mW

o

Magnetic
500mV
(terminals
5-3)

= 14.7V

U

o

I

= 10mA

o

P

= 18mW

o

Protection Group Allowed

Capacitance

EEx ia IIB 3.86µF 300mH 2.6mH/Ω

IIC 620nF 80mH 0.65mH/Ω

Protection Group Allowed

Capacitance

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Allowed
Inductance

Allowed
Inductance

L

oRo

Ratio

L

oRo

Ratio

Magnetic
50mV
(terminals
5-3, 6-4)

U

= 14.7V

o

I

= 10mA

o

P

= 18mW

o

Vortex 6V
(terminals
1, 2-3)

U

= 26.5V

o

I

= 82mA

o

P

= 520mW

o

Vortex 3V
(terminals
0, 2-3)

U

= 26.5V

o

I

= 82mA

o

P

= 520mW

o

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 730nF 8mH 0.26mH/Ω

IIC 95nF 2mH 0.06mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 730nF 8mH 0.26mH/Ω

IIC 95nF 2mH 0.06mH/Ω

Publication 1797-6.5.6 - June 2005

13-4 1797-IJ2 FLEX Ex Frequency Input Module

Channel 1 Frequency Input

Field devices may only be connected to the terminals of one of the five
following circuits. The terminals of the remaining four circuits must not be
connected.

Namur/Con
tact
(terminals
9-8)

U

= 14.7V

o

I

= 15mA

o

P

= 30mW

o

Magnetic
500mV
(terminals
10-12)

U

= 14.7V

o

I

= 10mA

o

P

= 18mW

o

Magnetic
50mV
(terminals
10-12,
9-11)

= 14.7V

U

o

I

= 10mA

o

P

= 18mW

o

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 300mH 2.6mH/Ω

IIC 620nF 80mH 0.65mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Publication 1797-6.5.6 - June 2005

Vortex 6V
(terminals
14, 13-12)

U

= 26.5V

o

I

= 82mA

o

P

= 520mW

o

Vortex 3V
(terminals
15, 13-12

U

= 26.5V

o

I

= 82mA

o

P

= 520mW

o

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 730nF 8mH 0.26mH/Ω

IIC 95nF 2mH 0.06mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 730nF 8mH 0.26mH/Ω

IIC 95nF 2mH 0.06mH/Ω

1797-IJ2 FLEX Ex Frequency Input Module 13-5

Channel 0 Gate Input

Field devices may only be connected to the terminal of one of the three
following circuits. The terminals of the remaining two circuits must not be
connected.

Namur/Con
tact
(terminals
23-24)

U

= 14.7V

o

I

= 15mA

o

P

= 30mW

o

Magnetic
500mV
(terminals
22-20)

U

= 14.7V

o

I

= 10mA

o

P

= 18mW

o

Magnetic
50mV
(terminals
22-20,
23-21)

= 14.7V

U

o

I

= 10mA

o

P

= 18mW

o

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 300mH 2.6mH/Ω

IIC 620nF 80mH 0.65mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Channel 1 Gate Input

Field devices may only be connected to the terminals of one of the three
circuits. The terminals of the remaining two circuits must not be connected.

Namur/Con
tact
(terminals
26-25)

= 14.7V

U

o

I

= 15mA

o

P

= 30mW

o

Protection Group Allowed

Capacitance

EEx ia IIB 3.86µF 300mH 2.6mH/Ω

IIC 620nF 80mH 0.65mH/Ω

Allowed
Inductance

Publication 1797-6.5.6 - June 2005

L

oRo

Ratio

13-6 1797-IJ2 FLEX Ex Frequency Input Module

Relay Outputs

Magnetic
500mV
(terminals
27-29)

U

= 14.7V

o

I

= 10mA

o

P

= 18mW

o

Magnetic
50mV
(terminals
27-29,
26-28)

= 14.7V

U

o

I

= 10mA

o

P

= 18mW

o

Relay
Output
(terminals
17, 18, 37 or
31, 32, 46)

U

= 28V

i

I

= 93mA

i

P

= 651mW

i

Protection Group Allowed

Capacitance

Allowed
Inductance

LoR

o

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Protection Group Allowed

Capacitance

Allowed
Inductance

L

oRo

Ratio

EEx ia IIB 3.86µF 600mH 4.15mH/Ω

IIC 620nF 150mH 1.03mH/Ω

Protection Group Internal

Capacitance

Internal
Inductance

EEx ia IIB Negligible Negligible

IIC Negligible Negligible

Publication 1797-6.5.6 - June 2005

Chapter

1797-PS1E FLEX Ex Power Supply

1797-PS1E

30686

14

Installation in Zone 1

Installation in Zone 22

Outputs

The 1797-PS1E power supply has a protection factor of IP65. Refer to the
specifications table for the IS module type.

ATTENTION

The housing type of the power supply is applicable for the use in Zone 22. It
corresponds with the category 3D according to RL 94/9 EG and is marked
with a type label accordingly. If the junction box must be opened for
maintenance purposes during operation, the power supply must be free of dust
deposits so that after the opening no dust penetrates inside.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in the power supply are electrically connected to each other and
have a common +V line.

The power supply cannot be used in an intrinsically safe
environment after its outputs have been exposed to
non-intrinsically safe signals.

IMPORTANT

1 Publication 1797-6.5.6 - June 2005

You cannot interconnect lines because of the intrinsic
safety requirements.

14-2 1797-PS1E FLEX Ex Power Supply

Typical Wiring Configurations

Terminal Base Assignments

European AC Power Input IS Power Output

1245

10 11 12 13 14 15 16 17

Intrinsically Safe Specifications

+V -V +V -V +V -V +V -V

Out 1 Out 2 Out 3 Out 4

42489

3

cha
GND

Vin

-+-+

Vout

For a full list of specifications, refer to FLEX Ex 85-250V AC In/Quad-Ex
DC Out Power Supply Installation Instructions, publication 1797-5.33.

Specifications 1797-PS1E (Series A) 1797-PS1E (Series B)

Inset Voltage Range 85 to 250V dc
Voltage U

Current I

C

L

o

O

O

(IIC) <500 nF

o

(IIC) <8 µH

Operational Temperature -20 to 70
Agency Certification EEx de [ib] IIC T4 II 2G EEx de [ib] IIC T4

Certificates BVS 98.D.2055X DMT 02 ATEX E253 X

<9.5V

<1A

o

C (-4 to 158oF)

II 3D IP54 T90°C

Publication 1797-6.5.6 - June 2005

ATTENTION

Once power has been applied, wait 15 minutes after
disconnecting before opening cover.

Chapter

1797-PS2E2 FLEX Ex Power Supply

1797-PS2E2

30686

15

Installation in Zone 1

Installation in Zone 22

Outputs

The 1797-PS2E2 power supply has a protection factor of IP54. Refer to the
specifications table for the IS module type.

ATTENTION

The housing type of the power supply is applicable for use in Zone 22. It
corresponds with the category 3D according to RL 94/9 EG and is marked
with a type label accordingly. If the junction box must be opened for
maintenance purposes during operation, the power supply must be free of dust
deposits so that after the opening, no dust penetrates inside.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

The channels in the power supply are electrically connected to each other and
have a common +V line.

The power supply cannot be used in an intrinsically safe
environment after its outputs have been exposed to
non-intrinsically safe signals.

IMPORTANT

1 Publication 1797-6.5.6 - June 2005

You cannot interconnect lines because of the intrinsic
safety requirements.

15-2 1797-PS2E2 FLEX Ex Power Supply

Typical Wiring Configurations

Intrinsically Safe Specifications

Terminal Base Assignments

European DC Power Input IS Power Output

10 11 12 13 14 15 16 17

+V -V +V -V +V -V +V -V

Out 1 Out 2 Out 3 Out 4

42489

3

cha
GND

1245

-+

Vin1-+Vin2

Vin1

For a full list of specifications, refer to FLEX Ex Power Supply Installation
Instructions, publication 1797-5.8.

Specifications 1797-PS2E2

Inset Voltage Range 18 to 32V dc
Voltage U

Current I

C

L

o

O

O

(IIC) <500 nF

o

(IIC) <8 µH

Operational Temperature -20 to 70
Agency Certification II 2G EEx de [ib] IIC T4

Certificates DMT 02 ATEX E253 X

<9.5V

<1A

o

C (-4 to 158oF)

II 3D IP54 T90C

Publication 1797-6.5.6 - June 2005

ATTENTION

Once power has been applied, wait 15 minutes after
disconnecting before opening cover.

Chapter

16

1797-ACNR15 ControlNet Ex Redundant Media Adapter

1797-ACNR15

Module Installation

Inputs/Outputs

PWR

3

2

41408

Use the redundant media adapter module to connect FLEX Ex modules to the
ControlNet Ex network.

Do not apply any non-intrinsically safe signals to the adapter.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

1 Publication 1797-6.5.6 - June 2005

16-2 1797-ACNR15 ControlNet Ex Redundant Media Adapter

Intrinsically Safe Specifications

For a full list of specifications, refer to ControlNet Ex Redundant Media
Adapter Installation Instructions, publication 1797-5.14.

ControlNet Ex BNC (ChA and ChB) Oscillation powered by:

U

< 5.4V dc

o

< 160mA

I

o

ac coupled with high-pass filter f

Output (intrinsically safe)

(16 position male/female flexbus
connector)

Power Supply

(+V, -V Intrinsically Safe)

Operational Temperature -20 to 70

U

< 5.8V

o

< 400mA

I

o

< 2.16W

P

o

< 10µH

L

o

< 65µF

C

o

< 9.5V dc

U

i

< 1A

I

i

P

< 9.5W

i

= Negligible

L

i

< 120nF

C

i

o

C (-4 to 158oF)

Agency Certification II 2G EEx ib IIB/IIC T4

Certificates DMT 99 ATEX E 008 X

> 500kHz

-3

Publication 1797-6.5.6 - June 2005

Chapter

17

1797-RPA ControlNet Ex Modular Repeater Adapter and 1797-RPFM Fiber Repeater Module, Medium Distance

1797-RPA

1797-RPA

COMM

MODULE

STATUS

STATUS

REPEATER

ADAPTER

PWR

Module Installation

1

2

3

4

+V

-V

+V

-V

41163

1797-RPFM

1797-RPFM

Chan 1 Chan 2

Recv

Xmit

Recv

Xmit

41267

A maximum of two 1797-RPFM modules may be used with one 1797-RPA
adapter.

Inputs/Outputs

Do not apply any non-intrinsically safe signals to the adapter or fiber modules.

When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

1 Publication 1797-6.5.6 - June 2005

17-2 1797-RPA ControlNet Ex Modular Repeater Adapter and 1797-RPFM Fiber Repeater Module, Medium Distance

Intrinsically Safe Specifications

For a full list of specifications, refer to ControlNet Ex Modular Repeater
Adapter and Fiber Repeater Module, Medium Distance Installation
Instructions, publication 1797-5.15.

1797-RPA Specifications

ControlNet Ex BNC Oscillation powered by:

U

< 5.4V dc

o

< 201mA

I

o

ac coupled with high-pass filter f >

Output (intrinsically safe)

(30 pin male TTL bus connector)

Power Supply

(+V, -V Intrinsically Safe)

Operational Temperature -20 to 70

Manufacturer specific bus
U

< 5.4V

o

< 201mA

I

o

< 1.09W

P

o

L

< 0.45µH

o

< 71µF

C

o

< 9.5V dc

U

i

< 1A

I

i

< 9.5W

P

i

= Negligible

L

i

< 120nF

C

i

o

C (-4 to 158oF)

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 99 ATEX E 011 X

500kHz

1797-RPM Specifications

Input (intrinsically safe)

(30 pin female TTL bus connector)

Output (intrinsically safe)

(30 pin male TTL bus connector)

Fiber Optic Transmitter
Ch1 & Ch 2

Operational Temperature -20 to 70

U

< 5.4V

i

< 201mA

I

i

< 1.1W

P

i

< 15µH

L

i

< 41µF

C

i

< 5.4V

U

o

< 201mA

I

o

< 1.1W

P

o

< 0.45mH

L

o

C

< 71µF

o

Optical Peak Output Power
P optical < 1mW

o

C (-4 to 158oF)

Agency Certification II (1) 2G EEx ia/ib IIB/IIC T4

Certificates DMT 99 ATEX E 011 X

Publication 1797-6.5.6 - June 2005

Chapter

1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector

B-A

Allen-Bradley

QUALITY

1797 - CEC

B-A

QUALITY

Allen-Bradley

18

1797 - BIC

General Installation

FLEXBUS

CONNECTOR

3

12 4

+V -V +V -V

1797-CEC 1797-BIC

FLEXBUS

ISOLATOR

PWR

42864

The 1797-CEC and -BIC must not be exposed to the environment. These
modules have a protection factor of IP20. Provide a suitable metal enclosure.
If these modules are to be installed into a Zone 2 area, then ensure that this
enclosure has a protection class of IP54.

ATTENTION

The 1797-BIC cannot be used as an associated apparatus
after its FLEX Ex backplane connector has been exposed
to non-intrinsically safe signals.

Make certain that you only connect the FLEX Ex backplane connector to
other intrinsically safe system modules to maintain the integrity of the
intrinsically-safe backplane.

1 Publication 1797-6.5.6 - June 2005

18-2 1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector

Inputs/Outputs

ATTENTION

For proper operation, cycle power to the 1797-BIC at the
same time power is cycled to the associated adapter.

1794

Adapter

24V dc

power
supply

1797

CEC

1797

BIC

1797 I/O

& Base

1797 I/O

& Base

1797 I/O

& Base

1797
power
supply

1797 I/O

& Base

42754

Do not apply any non-intrinsically safe signals to the FLEX Ex backplane
connector.

When using as an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.

Publication 1797-6.5.6 - June 2005

1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector 18-3

Intrinsically Safe Specifications

For a full list of specifications, refer to FLEX Ex Bus Isolator Installation
Instructions, publication 1797-5.13.

1797-BIC Specifications

Output (Intrinsically Safe)

(16 pin male and female flexbus
connector)

Operational Temperature -20 to 70

Agency Certification II (2)G [EEx ib] IIC

Certificates DMT 00 ATEX E056 X

Declaration of Conformity

Directive 94/9 EC Zone 2

U

< 5.75V dc

o

< 400mA

I

o

< 2.05W

P

o

< 100µH

L

o

< 39µF

C

o

o

C (-4 to 158oF)

II (2D)

II 3G EEx nA IIC T4 X

1797-CEC Specifications

Operational Temperature -20 to 70

Declaration of Conformity

Directive 94/9 EC Zone 2

II 3G EEx nA IIC T4 X

o

C (-4 to 158oF)

Publication 1797-6.5.6 - June 2005

18-4 1797-BIC Bus Isolator Module and 1797-CEC Flexbus Connector

Notes:

Publication 1797-6.5.6 - June 2005

Chapter

19

1797-BCNR Redundant ControlNet Ex Barrier

1797-BCNR

1797-BCNR

Redundant Coax

Media Barrier

Description

Inputs/Outputs

41267a

The ControlNet Ex barrier type 1797-BCNR functions as a galvanic isolation
barrier for signal between the non-intrinsic ControlNet system an
intrinsically-safe ControlNet Ex system. The 1797-BCNR is installed in the
safe area.

Do not apply any non-intrinsically safe signals to the intrinsically-safe side of
the 1797-BCNR.

The BNC covers are provided with a cover plug. This cover plug can only be
removed when a cable is connected. The IS connection must not be connected
to any signals that exceed the intrinsically-safe values of the ControlNet Ex
system.

1 Publication 1797-6.5.6 - June 2005

19-2 1797-BCNR Redundant ControlNet Ex Barrier

Intrinsically Safe Specifications

Repair

The ControlNet Ex barrier type 1797-BCNR is an associated apparatus
according to EN 50020. If the ControlNet Ex barrier is connected to
intrinsically-safe circuits, the applicable national and local construction,
installation, and operating regulations must be heeded (in Germany DIN EN
50020, DIN VDE 0165).

For a full list of specifications, refer to Redundant ControlNet Barrier
Installation Instructions, publication 1797-5.1x.

1797-BCNR Specifications

IS Output
(BNC Connector in Blue Area)

Operating Temperature -20 to +70

Agency Certification II (2) G [EEx ib] IIC

Certificates DMT 99 ATEX E065 X

Maximum open circuit voltage U
Maximum current I
frequency of 66kHz)

o

is 14mA (at the resonant

o

C (-4 to +158oF)

0102

is 7V

o

The ControlNet Ex barrier is not field-repairable. Any attempt to open this
device will void the warranty and IS certification. If repair is necessary, return
this device to the factory.

Publication 1797-6.5.6 - June 2005

Chapter

20

General UL, C-UL Certification Information

(1) keyswitch

(8) flexbus

cover

(2) terminal

base unit

Module Installation

Label here or under here

FLEX Ex I/O modules must be used with a 1797-TB3 or -TB3S intrinsically
safe terminal base unit.

You will need to rotate the keyswitch (1) to the correct position depending on
the module. Refer to the module’s installation instructions for more
information. Do not change the position of the keyswitch after wiring the

terminal base unit.

Make certain that you only connect terminal base units to other intrinsically
safe system modules, adapters and power supplies to maintain the integrity of
the intrinsically-safe system.

Remove cap plug and attach another intrinsically safe terminal base unit (2) to
the right of the terminal base unit if required.

40231

41307

Do not remove the flexbus cover (8) on the right-most terminal base unit.

1 Publication 1797-6.5.6 - June 2005

20-2 General UL, C-UL Certification Information

Installation in Division 1/ Zone 1

Electrostatic Charge

UL, C-UL I/O Entity Parameters

Modules, adapters, and terminal base units must not be exposed to the
environment. Provide a suitable enclosure.

ATTENTION

Protect the system against electrostatic charge. Post a sign near each module:
Attention! Avoid electrostatic charge. For your convenience, a sign which
can be cut out and posted is included in this chapter.

If this product has the UL/C-UL mark, it has been designed, evaluated, tested,
and certified to meet the following standards:

• UL 913, 1988, Intrinsically Safe Apparatus and Associated Apparatus
for Use in Class I, II, and III Division 1, Hazardous (Classified)
Locations

• UL 1203, Explosion-Proof and Dust-Ignition-Proof Electrical
Equipment for Use in Hazardous (Classified) Locations

• UL 2279, Electrical Equipment for Use in Class I, Zone 0, 1, and 2
Hazardous (Classified) Locations

• UL 508, Industrial Control Equipment

• CSA C22.2 No. 157-92, Intrinsically Safe and Non-Incendive

Equipment for Use in Hazardous Locations

• CSA C22.2 No. 30-M1986, Explosion-Proof Enclosures for Use in
Class I Hazardous Locations

• CSA-E79-0-95, Electrical Apparatus for Explosive Gas Atmospheres,
Part 0: General Requirements

• CSA-E79-11-95, Electrical Apparatus for Explosive Gas Atmospheres,
Part 11: Intrinsic Safety “i”

• CSA C22.2 No. 14-95, Industrial Control Equipment

Modules, adapters, and terminal base units cannot be used
in an intrinsically safe environment after they have been
exposed to non-intrinsically safe signals.

Repair

Publication 1797-6.5.6 - June 2005

Modules are not field-repairable. Any attempt to open a module will void the
warranty and the IS certification. If repair is necessary, return the module to
the manufacturer.

Attention: Avoid electrostatic charge.

ControlNet Ex System

Chapter

21

Adapter

1797-ACNR15

Field Power
Connection Terminals

PWR

Bus Connectors

Terminal Strips

Terminal Base

Keyswitch

Flexbus Connector

Ex I/O Module

Ex

PWR

20125-M

1 Publication 1797-6.5.6 - June 2005

21-2 ControlNet Ex System

ControlNet Ex System Diagram



Class III

Class II Division 1 Groups E, F, G

Class I, Zone 1, Groups IIC, IIB, IIA

Hazardous (Classified) Location

Class I, Division 1, Groups A, B, C, D

Any IS device with entity

Node 4 ... 48

1797-ACNR15

Any IS device with entity

Node 3

1797-ACNR15



trk trm

coax trunk cable 

ControlNet

ControlNet

CNet Ex

Ex tap

Zone 1 or 2, IIC

Class III, Division 1 and 2

Hazardous (Classified) Location

Ex tap

Class I, Zones 1 and 2, Groups IIC, IIB, IIA

Class I Division 1 and 2, Groups A, B, C, D

Class II, Division 1 and 2, Groups E, F, G

(Vmax, Imax, Ci, Li)

with entity concept

concept parameters 

.

(Vmax, Imax, Ci, Li)

concept parameters 

.

Maximum devices=8.

to associated apparatus

appropriate for connection

parameters listed in Table 2.

.



1

.



with entity concept

Maximum devices=8.

to associated apparatus

appropriate for connection

parameters listed in Table 2.

.



1

.

Li=0

Imax=1A

Ci<=120nF

Vmax=9.5V

Power Supply



ChB

ChA

Imax=1A

Ci<=120nF

Vmax=9.5V

Power Supply

ChB

ChA

Li=0

parameters of

To any IS device or

associated apparatus

Voc=9.5V and Isc=1A.

with entity concept 

parameters of

To any IS device or

associated apparatus

Voc=9.5V and Isc=1A.

with entity concept 

Node 2

Non-Hazardous Location

1797-RPFM 1797-RPFM

1797-RPA

.



Ch1

.

.

.

.

.

.



.

.

.

2

fiber optic cable

Ch0

Ch1

Ch0

Li=0

Imax=1A

Ci<=120nF

Vmax=9.5V

Power Supply

parameters of

To any IS device or

associated apparatus

with entity concept 





Voc=9.5V and Isc=1A.

Node 1

Ex tap

ControlNet

trk trm

CNet Ex

Ex tap

ControlNet



trk trm

CNet Ex

C.

o

C to +70

o

The ambient temperature range of the

ControlNet Ex System is -20

coax trunk cable 

or

1786-RPFM

<5mW/mm

Groups IIC, IIB, IIA

Class I Division 1 and 2,

light emitting diode output is

Any associated apparatus where the

Class I, Zones 0, 1 and 2,

Hazardous (Classified) Location

Groups E, F, G

Groups A, B, C, D

Class II, Division 1 and 2,

Class III, Division 1 and 2

42475

Publication 1797-6.5.6 - June 2005

ControlNet Ex System 21-3

Describing the ControlNet Ex System Diagram

System
Diagram
Name

1797-RPA 1797-RPA ControlNet Ex Modular

1797-RPFM 1797-RPFM ControlNet Ex Fiber

1797-ACNR15 1797-ACNR15 Redundant Media

CNet Ex
Tap Tr m

ControlNet Ex
Tap

CNet Ex
Trk Tr m

Coax Trunk
Cable

None None Standard Coax Trunk

A maximum of 48 ControlNet ExTM nodes may be connected together by
250m of coax cable and 48 taps. The distance increases to 1000m when you
use only 2 taps. See the table below for more information.

The fiber media of the 1797-RPFM can be installed in a hazardous location
(Class I, Zones 0, 1, and 2; Class I, Division 1 and 2; Class II, Division 1 and 2;
Class III, Division 1 and 2) to connect two 1797-RPFM modules or they can
be installed through different locations into the non-hazardous location to
connect the 1797-RPFM with any approved associated apparatus.

All cables and fiber media that are not light blue must be marked as IS using
the 1797-EXMK marking kit or other locally approved IS identification
and/or segregation method.

During the installation of the ControlNet Ex system, all metallic parts must be
isolated to prevent an earth connection (high voltage withstanding of isolating
material must be > 500V ac).

Catalog Number Catalog Name Description

Represents one ControlNet Ex node and

Repeater Adapter

Repeater Module,
Medium Distance

ControlNet Ex Adapter

1797-TCAP ControlNet Ex Tap

(Dummy) Terminator

1797-TPx ControlNet Ex Coax

Tap

1797-XT ControlNet Ex Trunk

Termin at or

1797-RG6 Quad-Shield, RG-6

75Ω Coax Trunk Cable

Cable BNC Couplers

must be connected to a coax trunk cable
by
1797-TPx

Allows connection of a maximum of two
devices per 1797-RPA and is powered
directly by 1797-RPA

Represents one ControlNet Ex node and
must be connected to a coax trunk cable
by
1797-TPx -each one with two redundant
output channels that are connected to
different ControlNet Ex networks (coax
cables and 1797-TPx)

Represents one ControlNet Ex node and is
a simple capacitor (56pF) with a coax
connector

Four types of connections available: S
(straight t-tap), R (right angle t-tap), YS
(straight y-tap), and YR (right angle y-tap)

- a maximum of 48 taps can be connected
together by coax trunk cable

Simple resistor (75Ω) with coax connector
that must be on each end of the ControlNet
Ex coax trunk for termination

Maximum (functional) length between 2
1797-TPx is 3280ft (1000m) - each
1797-TPx reduces the (functional) coax
cable length by 53.4ft (16.3m)

Different standard cable couplers, 90o,

o

180

, etc.

Publication 1797-6.5.6 - June 2005

21-4 ControlNet Ex System

Certified Equivalent ControlNet Ex System Diagram Items

You may use these items as equivalents for the items shown on the system
diagram.

System Diagram Name Catalog Number Source

1797-RPA 1797-RPA Allen-Bradley

RSD-CFA-Ex.CN Pepperl+Fuchs

1797-RPFM 1797-RPFM Allen-Bradley

RSD-FC-Ex2.CN Pepperl+Fuchs

1797-ACNR15 1797-ACNR15 Allen-Bradley

RSD-GW-Ex2.CN Pepperl+Fuchs

Coax Trunk Cable

ControlNet Ex Tap 1797-TPx Allen-Bradley

1

1797-RG6 Allen-Bradley

2

3092A

Belden Wire & Cable Co.

3092A with blue jacket Belden Wire & Cable Co.

RS-TPx-Ex Pepperl+Fuchs

CNet Ex Trk Trm 1797-XT Allen-Bradley

RS-XT-Ex Pepperl+Fuchs

CNet Ex Tap Trm 1797-TCAP Allen-Bradley

RS-TCAP-Ex Pepperl+Fuchs

1 In addition to these cable types, the following specification can be followed to allow additional types:

Cable Impedance = 75Ω ± 3Ω
Cable Capacitance = <
Cable Resistance = >
Cable Attenuation 0.2MHz >

(-20 to +70

2 Belden Wire & Cable 1189A may be used, but with functional loss of communication distance and/or nodes.

 The entity concept allows interconnection of intrinsically safe apparatus

o

C) 0.5MHz > 0.95dB/100m 10MHz > 1.86dB/100m

5.94nF per 100m

9.08Ω per 100m

1MHz >
2MHz >

0.93dB/100m 5MHz > 1.39dB/100m

1.07dB/100m 20MHz > 2.73dB/100m

1.16dB/100m 50MHz > 4.33dB/100m

with associated apparatus not specifically examined in combination as a system
when the approved values of V
are less than or equal to V
approved values of C
C

and Li + L

cable

 Wiring methods must be in accordance with the National Electric Code,

and La of the associated apparatus are greater than Ci +

a

respectively for the intrinsically safe apparatus.

cable

and Isc or Vt and It of the associated apparatus

oc

max

and I

of the intrinsically safe apparatus and the

max

ANSI/NFPA 70, Article 504 and 505 or the Canadian Electric Code CSA
C22.1, Part 1, Appendix F. For additional information refer to ANSI/ISA
RP12.6.

Publication 1797-6.5.6 - June 2005

ControlNet Ex System 21-5

 WARNING: Substitution of components may impair intrinsic safety.

AVERTISSEMENT: La substitution de composant peut compromettre la
securite intrinseque.

 If fiber optic cable is provided with a metal shield, it must be connected to

a dedicated intrinsic safety ground in the non-hazardous location and tied back
in the hazardous location or be connected to a ground in the hazardous
location and tied back in the non-hazardous location.

 The glass fiber must have a minimum diameter of 6µm.

 For Class II, Division 1, Groups E, F, G and Class III, modules must be

installed in a UL listed Type 4, 4X, 6, 6P, 9, 12, or 12K enclosure. (The power
supply does not need to be put into an additional enclosure. Refer to the
power supply section of this manual for more information.)

 Any combination of up to eight FLEX Ex I/O modules may be connected.

This includes using 1794-CE3, 1797-CE3, 1794-CE1, and 1797-CE1 cables.

Installation in Division 1/ Zone 1

 The ambient temperature range (T

 Channel B is intended for a redundant connection and is identical to the

) for this system is -20°C to 70°C.

amb

channel A configuration.

Modules must not be exposed to the environment. Provide a suitable
enclosure.

ATTENTION

Modules cannot be used in an intrinsically safe
environment after they have been exposed to
non-intrinsically safe signals.

Publication 1797-6.5.6 - June 2005

21-6 ControlNet Ex System

Electrostatic Charge

Repair

Protect the system against electrostatic charge. Post a sign near each module:
Attention! Avoid electrostatic charge. For your convenience, a sign which
can be cut out and posted is included in this chapter.

Modules are not field-repairable. Any attempt to open a module will void the
warranty and the IS certification. If repair is necessary, return the module to
the manufacturer.

Attention: Avoid electrostatic charge.

Publication 1797-6.5.6 - June 2005