Allen-Bradley 1797-IBN16 User manual

Publication 1797-IN007H-EN-P - August 2017
Installation Instructions
FLEX Ex NAMUR Input Module
Catalog Number 1797-IBN16
Contents
Topic Page
Important User Information 2
Module Installation 3
Installation in Zone 1 5
Installation in Zone 22 5
Electrostatic Charge 5
Removal and Insertion Under Power 6
European Communities (EC) Directive Compliance 6
Inputs 8
Wire the Module 10
Input/Output Mapping 12
Set Input Filter Times 12
Specifications 15
Entity Parameters 18

2FLEX Ex NAMUR Input Module
Publication 1797-IN007H-EN-P - August 2017
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://literature.rockwellautomation.com) 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, when necessary, we use notes to make you aware of safety considerations.
WARNING
Identifies information about practices or circumstances that can cause an explosion
in a hazardous environment, which may lead to personal injury or death, property
damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful application and understanding of
the product.
ATTENTION
Identifies information about practices or circumstances that can lead to personal
injury or death, property damage, or economic loss. Attentions help you identify a
hazard, avoid a hazard and recognize the consequences.
SHOCK HAZARD
Labels may be on or inside the equipment (for example, drive or motor) to alert
people that dangerous voltage may be present.
BURN HAZARD
Labels may be on or inside the equipment (for example, drive or motor) to alert
people that surfaces may reach dangerous temperatures.

FLEX Ex NAMUR Input Module 3
Publication 1797-IN007H-EN-P - August 2017
Module Installation
This module must be used with a 1797-TB3 or -TB3S intrinsically safe
terminal base unit.
Component Identification
1Keyswitch 5Alignment Bar
2Terminal Base Unit 6Alignment Groove
3Flexbus Connector 7Latching Mechanism
4Module 8Cap Plug
1
2
3
45
6
7
Label Here or
Under Here
8
40231

4FLEX Ex NAMUR Input Module
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1. Rotate keyswitch (1) on terminal base unit (2) 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.
2. Make certain the flexbus connector (3) is pushed all the way to the left
to connect with the neighboring terminal base/adapter.
You cannot install the module unless the connector is fully extended.
3. Make sure the pins on the bottom of the module are straight so they
will align properly with the connector in the terminal base unit.
4. Position the module (4) with its alignment bar (5) aligned with the
groove (6) on the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit.
The module is seated when the latching mechanism (7) is locked into
the module.
6. 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.
ATTENTION
This equipment is considered Group 1, Class A industrial equipment according
to IEC/CISPR Publication 11. Without appropriate precautions, there may be
potential difficulties ensuring electromagnetic compatibility in other
environments due to conducted as well as radiated disturbance.
This equipment is supplied as open-type equipment. It must be mounted within
an enclosure that is suitably designed for those specific environmental
conditions that will be present and appropriately designed to prevent personal
injury resulting from accessibility to live parts. The interior of the enclosure
must be accessible only by the use of a tool. Subsequent sections of this
publication may contain additional information regarding specific enclosure
type ratings that are required to comply with certain product safety
certifications.
20128-M

FLEX Ex NAMUR Input Module 5
Publication 1797-IN007H-EN-P - August 2017
7. Remove cap plug (8) and attach another intrinsically safe terminal base
unit to the right of this terminal base unit if required.
Installation in Zone 1
This module must not be exposed to the environment. Provide a suitable
metal enclosure. This module has a protection factor of IP20.
Installation in Zone 22
When the module is installed in Zone 22, the following cabinets must be used:
IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW; or IVK-ISRPI-V8LC. These
cabinets can be purchased from Pepperl+Fuchs GmbH, Lilienthalstrasse 200,
68307 Mannheim, Germany. Information available at
www.pepperl-fuchs.com.
The IS-RPI cabinets (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
68307 Mannheim
IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or
IVK2-ISRPI-V16LC)
II 3 D Ex tD A22 IP54 T70 °C X
CE
Serial (manufacturing) number
Model
Electrostatic Charge
Protect the system against electrostatic charge. Post a sign near this module:
WARNING Avoid electrostatic charging.
ATTENTION
This module cannot be used in an intrinsically safe environment after it has
been exposed to non-intrinsically safe signals.

6FLEX Ex NAMUR Input Module
Publication 1797-IN007H-EN-P - August 2017
ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA
ELETROSTÁTICA.
For your convenience, a sign that can be cut out and posted is included in this
installation instruction.
Removal and Insertion Under Power
European Communities (EC) Directive Compliance
If this product has the CE mark it is approved for installation within the
European Union and EEA regions. It has been designed and tested to meet
the following directives.
EMC Directive
These products are tested to meet the Council Directive 2014/30/EU by
applying the following standards:
•EN 61000-6-4:2007, Electromagnetic Compatibility (EMC) - Part 6-4:
Generic Standard for Industrial Environments (Class A)
•EN 61000-6-2:2005, Electromagnetic Compatibility (EMC) - Part 6-2:
Generic Standards - Immunity for Industrial Environments
•EN 61326-1:2013 (Industrial), Electrical Equipment For
Measurement, Control, and Laboratory Use - Industrial EMC
Requirements
WARNING
These modules are designed so you can remove and insert them under
power. However, take special care when removing or inserting modules in an
active process. I/O attached to any module being removed or inserted can
change states due to its input/output signal changing conditions.
If you insert or remove the module while backplane power is on, an electrical
arc can occur. This could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.

FLEX Ex NAMUR Input Module 7
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European Hazardous Location Approval
The following applies to products marked II (1)2 G and
II (1)D:
•Are Equipment Group II, Equipment Category (1) 2, and comply
with the Essential Health and Safety Requirements relating to the
design and construction of such equipment given in Annex II to
Directive 2014/34/EU. See the EC Declaration of Conformity at
http://www.rockwellautomation.com/products/certification
for details.
•The type of protection is “Ex ia ib IIC T4” and “[EX iaD]” according
to EN 60079-11.
•Comply to Standards EN 60079-0:2006; EN 60079-11:2007;
EN 60079-26:2004, EN 61241-0:2006, and EN 61241-11:2006,
reference certificate number DMT 98 ATEX E 013 X.
•Are intended for use in areas in which explosive atmospheres caused
by mixtures of air and gases, vapors, mists, or air/dust mixtures are
likely to occur. Such locations correspond to Zone 1 or 2 classification
according to ATEX directive 2014/34/EU.
IEC Hazardous Location Approval
The following applies to products with IECEx certification:
•Are intended for use in areas in which explosive atmospheres caused
by mixtures of air and gases, vapors, mists, or air/dust mixtures are
likely to occur. Such locations correspond to Zone 1 or 2 classification
to IEC 60079-0.
•The type of protection is “Ex ia ib IIC T4” and “[EX iaD]” according
to IEC 60079-11.
•Comply to Standards IEC 60079-0:2004, IEC 60079-11:2006,
IEC 60079-26:2004, IEC 61241-0:2004 and IEC 61241-11:2005.
Reference IECEx certificate number IECEx BVS 09.0027X.

8FLEX Ex NAMUR Input Module
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Special Conditions of Safe Use:
The intrinsically safe circuits (ch0 to ch15) may extend into areas with
combustible dust. However it shall be ensured that the apparatus, connected
to these intrinsically safe circuits, meet the requirements for category 1D
respectively 2D and are marked accordingly.
All the other intrinsically safe circuits may also extend into areas with
combustible dust. However it shall be ensured that the apparatus, connected
to these intrinsically safe circuits, meet the requirements for category 2D and
are marked accordingly.
The module may only be used with the terminal base type 1797-TB3/* or
type 1797-TB3S/* (DMT 98 ATEX E012U)
A warning label shall be installed in immediate proximity of these apparatus:
ATTENTION! Avoid electrostatic charging.
Inputs
Each input can be operated from a NAMUR sensor or a mechanical contact
(if mechanical inputs are used). Do not apply any nonintrinsically 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.
+V
-V
-
+
NAMUR
Prox
Lead Break
Defeat
Bus
μC
Flexbus
Power
Supply

FLEX Ex NAMUR Input Module 9
Publication 1797-IN007H-EN-P - August 2017
Wiring to a 1797-TB3 or -TB3S Terminal Base Unit
Connect wiring to the 1797-TB3 or 1797-TB3S terminal base unit as shown
below.
1. Connect the individual input wiring to (+) terminals (0, 2, 4, 6, 8, 10,
12, 14) on the 0 to 15 row (A) and on the 16 to 33 row (B) (terminals
17, 19, 21, 23, 25, 27, 29, 31)as indicated in the table below.
2. Connect the associated input to the corresponding (-) terminal (1, 3,
5, 7, 9, 11, 13, 15) on the 0 to 15 row (A), and on the 16 to 33 row (B)
(terminals 18, 20, 22, 24, 26, 28, 30, 32) for each input as indicated in
the table below.
3. Connect +V dc power to terminal 34 on the 34 to 51 row (C).
4. Connect -V to terminal 35 on the 34 to 51 row (C).
WARNING
Make certain that you power this module with an intrinsically safe power
supply. Do not exceed the values listed in the specifications for this module.
If you connect or disconnect wiring while the field-side power is on, an
electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous
before proceeding.
41504
Row A
Row B
Row C
++ + +-- --
ch0 ch1 ch2 ch3
+V -V
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 27 28 29 30 31 32 33
No connections allowed to terminals 36 or 49.
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
+- +- +- +-
ch7ch6ch5ch4
+- +- +- +- +-+- +- +-
ch8 ch9 ch10 ch11 ch15ch14ch13ch12
+V -V

10 FLEX Ex NAMUR Input Module
Publication 1797-IN007H-EN-P - August 2017
5. If continuing power to the next terminal base unit, connect a jumper
from terminal 50 (+V) on this base unit to terminal 34 on the next
base unit.
6. If continuing common to the next terminal base unit, connect a
jumper from terminal 51 (-V) on this base unit to terminal 35 on the
next base unit.
Wire the Module
Input Input
Source
Input Signal Input Input Source Input Signal
Input 0 A-0 A-1 Input 8 B-17 B-18
Input 1 A-2 A-3 Input 9 B-19 B-20
Input 2 A-4 A-5 Input 10 B-21 B-22
Input 3 A-6 A-7 Input 11 B-23 B-24
Input 4 A-8 A-9 Input 12 B-25 B-26
Input 5 A-10 A-11 Input 13 B-27 B-28
Input 6 A-12 A-13 Input 14 B-29 B-30
Input 7 A-14 A-15 Input 15 B-31 B-32
+V Terminals 34 and 50
-V Terminals 35 and 51
Terminals 16, 33, 40, 41, 42, 43, 44, and 45 are connected to chassis ground.
ATTENTION
Do not use the 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.

FLEX Ex NAMUR Input Module 11
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Grounding
All I/O wiring must use shielded wire. Shields must be terminated external to
the module, such as bus bars and shield-terminating feed throughs.
Indicators
A = Status Indicators
yellow - individual input present;
flashing red - channel fault;
solid red - module did not pass powerup check (channel 0 is solid red
while Powerup check is running)
B = Insertable labels for writing individual input designations
C = Power Indicator - green indicates power applied to module
30820-M
Ex
1797-IBN16
PWR
6
ABC
40064A

12 FLEX Ex NAMUR Input Module
Publication 1797-IN007H-EN-P - August 2017
Input/Output Mapping
Set Input Filter Times
You can select the input filter time constant for each group of channels
(channels 00 to 11 or channels 12 to 15).
For example, to set a filter time constant of 5 ms for a dc input module, set
bits 05, 04, 03, 02, 01, and 00 as shown below.
Dec. Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Oct. Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Read0I15I14I13I12I11I10I9 I8 I7I6I5I4I3I2I1I0
Read1F15F14F13F12F11F10F9 F8 F7F6F5F4F3F2F1F0
Read 1 Input 15 Counter
Write 0 CF CR FC Input Filter - Ch
12…15 Input/Alarm Filter - Ch
0…11
Where:I = Input
F = Fault Alarm for an individual channel
CF = Counter Fast - Filter time constant or bypass, depending on setting (when input 15 is in counter mode) -
0 = normal, 1 = fast
CR = Counter Reset- Resets the counter value in read word 1 when input 15 is in counter mode.
0 = normal, 1 = reset
FC = Fault mode or Counter mode - determines content of read word 1 (counter value of input 15, or
fault data of individual channel). 0 = counter, 1 = fault data - wire off or short
circuit detect
40154
FT = 12 to 15
(14 to 17)
Dec.
(Octal)
O:010
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
10 010 0
FT = 00 to 11
(00 to 13)
=44 Octal
or 36 Decimal

FLEX Ex NAMUR Input Module 13
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Input Filter Times
Set the Fault Detect Switch
A switch, located on the backside of the module, lets you select the action of
the module when a fault (wire off or short circuit) is detected. Switch position
1 determines the action for channels 0 to 3, position 2 for channels 4 to 7,
position 3 for channels 8 to 11, and position 4 for channels 12 to 15.
Set the switch:
•OFF to disable fault detection for the selected channels.
•ON to enable fault detection for the selected channels.
Bits Description Maximum
Filter Time
02 01 00 Filter Times 00…11 (00…13)
05 04 03 Filter Times 12…15 (14…17)
0 0 0 Filter Time 0 (default) 1 ms
0 0 1 Filter Time 1 1 ms
0 1 0 Filter Time 2 2 ms
0 1 1 Filter Time 3 3 ms
1 0 0 Filter Time 4 5 ms
1 0 1 Filter Time 5 9 ms
1 1 0 Filter Time 6 17 ms
1 1 1 Filter Time 7 33 ms
Bits 00…02 also control the filter times of all 16 fault alarm bits of read word 1 when
module is in fault mode.
OFF
1234
OFF
1234

14 FLEX Ex NAMUR Input Module
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Repair
This module is not field-repairable. Any attempt to open this module will void
the warranty and IS certification. If repair is necessary, return this module to
the factory.

FLEX Ex NAMUR Input Module 15
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Specifications
1797-IBN16 16 NAMUR Input Module
Attribute Value
Number of inputs 16 (1 group of 16), nonisolated, sinking
IS input type Ex ia IIB/IIC T4,
AEx ia IIC T4,
Class I, II, III Division 1 Group A-G T4
IS module type Ex ib IIB/IIC T4,
AEx ib IIC T4,
Class I, Division 1 Group A-D T4
Input type NAMUR compatible
ON-state current 2.1 mA
OFF-state current 1.2 mA
Hysteresis 0.2 mA
Input frequency 1000 Hz max
Input pulse width >500 µs on or off
Max load voltage U/V = 7.5V DC
Short circuit current I = 7.5 mA
Short circuit threshold I > 6 mA
Lead breakage threshold I < 0.35 mA
Input delay times
OFF to ON
ON to OFF
1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms
1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms
1 ms default - selectable thru output image table (see
Setting Input Filter Times)
Indicators (field side
indication, customer device
driven)
16 yellow status indicators
16 red fault indicators
1 green module power indicator

16 FLEX Ex NAMUR Input Module
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Output (intrinsically safe)
(16 pin male and female
flexbus connector)
Ui< 5.8V DC
Ii< 400 mA
Li= Negligible
Ci= Negligible
Isolation path
Input to power supply
Input to flexbus
Input to input
Power supply to flexbus
Isolation Type
Galvanic to DIN EN 60079-11
Galvanic to DIN EN 60079-11
None
Galvanic to DIN EN 60079-11
Power supply
(+V, -V intrinsically safe)
Ui< 9.5V DC
Ii< 1 A
Li= Negligible
Ci= Negligible
Module field-side power
consumption
2.8 W
Power dissipation 2.8 W
Thermal dissipation Max 9.6 BTU/hr
Module location Cat. No. 1797-TB3 or 1797-TB3S Terminal Base Unit
Conductor wire size 4 mm2(12 gauge) stranded max
1.2 mm (3/64 in.) insulation max
Dimensions 46 mm x 94 mm x 75 mm
(1.8 in. x 3.7 in. x 2.95 in.)
Weight 200 g (approximate)
Keyswitch Position 6
1797-IBN16 16 NAMUR Input Module
Attribute Value

FLEX Ex NAMUR Input Module 17
Publication 1797-IN007H-EN-P - August 2017
Environmental
Attribute Value
Temperature, operating -20…70 °C (-4…+158 °F)
Temperature,
nonoperating
-40…85 °C (-40…185 °F)
Relative humidity 5…95% noncondensing
Vibration Tested 2 g @ 10…500 Hz per IEC68-2-6
Shock, operating Tested to 15 g peak acceleration, 11(+1) ms pulse width
Shock, nonoperating Tested to 15 g peak acceleration, 11(+1) ms pulse width
Agency Certification
Attribute Value
CENELEC II (1) 2G Ex ib[ia] IIC T4
II (1) D [Ex iaD]
U, C-UL Class I, Groups A, B, C and D; Class II, Groups E, F and G;
Class III hazardous Locations.
Class I, Zone 1, AEx ib[ia] IIC T4.
FM Intrinsically safe Class I, Div 1, Groups A, B, C, D, T4.
Associated Apparatus with intrinsically safe
Connections Class I, II, III, Div 1, Groups A--G
Intrinsically safe Class I, Zone 1, AEx ib[ia] IIC T4.
IECEx [Zone 0] Ex ib[ia] IIC T4
[Ex iaD]
INMETRO BR-Ex ia/ib IIB/IIC T4
Certificate of Conformity
Attribute Value
CENELEC DMT 98 ATEX E013 X
U, C-UL UL, C-UL File Number E197983

18 FLEX Ex NAMUR Input Module
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Entity Parameters
CE/CENELEC I/O Entity Parameters (Each Channel)
UL, C-UL I/O Entity Parameters
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 61010, UL Standard for Safety Electrical Equipment For
Measurement, Control, and Laboratory Use; Part 1: General
Requirements
•CSA C22.2 No. 157-92, Intrinsically Safe and Non-Incendive
Equipment for Use in Hazardous Locations
FM FM Certificate Number 3009806
INMETRO 05/UL-BRAE-0012X
IECEx IECEx BVS 09.0027X
Protection Group Allowed
Capacitance
Allowed
Inductance
Lo/RoRatio
Uo< 14.5V
Io< 15 mA
Po< 40 mW
Characteristic:
linear
Ex ia IIB 1 μF10 mH 2.6 mH/Ω
Ex ia IIC 300 nF 2 mH 0.65 mH/Ω
Certificate of Conformity
Attribute Value

FLEX Ex NAMUR Input Module 19
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•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
Table 1
Wiring Methods
•Wiring method 1 - Each channel is wired separately.
•Wiring method 2 - Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC) or Canadian Electric Code (CEC).
Table 2
The entity concept allows interconnection of intrinsically safe apparatus
with associated apparatus not specifically examined in combination as a
system when the approved values of Vtand Itof the associated apparatus are
less than or equal to Voc and Isc or Vmax and Imax of the intrinsically safe
apparatus and the approved values of Caand Laof the associated apparatus
are greater than Ci+ Ccable and Li+ Lcable respectively for the intrinsically safe
apparatus.
Wiring
Method Channel Terminals Voc
(V) Isc (mA) Vt (V) It (mA) Groups Ca(μF) La(mH)
1 and 2 Any one
channel (for
example,
ch0)
0(+), 1(-) 14.5 15 - - A, B 0.3 80.0
C, E 0.9 320.0
D, F, G 2.4 640.0
Terminals Vt(V) It(mA) Groups Ca(μF) La(μH)
Male Bus
Connector
5.8 400 A-G 3.0 3.0

20 FLEX Ex NAMUR Input Module
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Simple apparatus is defined as a device which neither generates nor stores
more than 1.2V, 0.1 A, 20 mJ, or 25 mW.
Wiring methods must be in accordance with the National Electric Code,
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.
This module, 1797-IBN16, must be used with terminal base 1797-TB3
or 1797-TB3S.
Terminals 36 to 39, and 46 to 49 shall not be connected.
WARNING
Substitution of components may impair intrinsic safety.
AVERTISSEMENT
La substitution de composant peut compromettre la securite
intrinseque.
IMPORTANT
For detailed certification information, refer to the FLEX Ex System
Certification Reference Manual, publication 1797-6.5.6.