Allen-Bradley ControlNet FLEX Ex 1797-BCNR User manual

Publication 1797-IN536E-EN-P - August 2017
Installation Instructions
FLEX Ex Redundant ControlNet Barrier Module
Cat. No. 1797-BCNR
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 we use notes to make you aware of safety considerations.

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Publication 1797-IN536E-EN-P - August 2017
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
•recognize the consequence
SHOCK HAZARD
Labels may be located on or inside the equipment to alert people that dangerous voltage
may be present.
BURN HAZARD
Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.
Important User Information
43476
1
23
4
In Out
Out
Channel A
Channel B
In

FLEX Ex Redundant ControlNet Barrier Module 3
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Use the redundant ControlNet™ barrier module to interconnect between
ControlNet and ControlNet Ex™ networks.
ATTENTION
Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications
(as defined in IEC publication 60664-1), at altitudes up to 2000
meters without derating.
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.
NOTE: See NEMA Standards publication 250 and IEC
publication 60529, as applicable, for explanations of the degrees
of protection provided by different types of enclosure. Also, see
the appropriate sections in this publication, as well as the
Allen-Bradley publication 1770-4.1 ("Industrial Automation
Wiring and Grounding Guidelines"), for additional installation
requirements pertaining to this equipment.
Component Identification
1ControlNet Channel A In
2ControlNet Channel B In
3ControlNet Ex Channel B Out
4ControlNet Ex Channel A Out

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Publication 1797-IN536E-EN-P - August 2017
Product Features
•Provides for a direct connection to the ControlNet coax into
hazardous areas
•Can be mounted in a nonhazardous (safe) area
•Supports up to 10 adapters at 250 meters or 2 adapters at 500 meters
A functional illustration of the FLEX Ex Barrier Module is shown below.
Safe Area
ControlNet A
ControlNet B
Hazardous Area
ControlNet Ex TAP
(e.g., 1797-TPR)
ControlNet Ex
TAP
ControlNet Ex
Adapter
43464
ControlNet barrier
PA
ControlNet Ex TAP
(e.g., 1797-TPR)
ControlNet Ex TAP
(e.g., 1797-TPR)

FLEX Ex Redundant ControlNet Barrier Module 5
Publication 1797-IN536E-EN-P - August 2017
Mounting the Barrier on a DIN Rail Before Installing Modules
The 1797-BCNR module mounts on a DIN rail.
1. Position the ControlNet Ex barrier module (A) on a 35 x 7.5mm DIN
rail (B) (A-B pt. no. 199-DR1) at a slight angle.
2. Hook the lip on the rear of the barrier (A) onto the top of the DIN
rail (B), and rotate the module onto the rail.
3. Press the barrier module down onto the DIN rail until flush.
4. The locking tab (C) should snap into position and lock the barrier
module to the DIN rail.
5. If the barrier module does not snap into position, use a screwdriver or
similar device to move the locking tab down while pressing the barrier
module flush onto the DIN rail. Release the locking tab to lock the
module in place.
6. If necessary, push up on the locking tab to lock.
7. Make certain that you only connect the ControlNet Ex side of the
1797-BCNR to 1797 ControlNet taps with either a 1797-ACNR15 or
a 1797-TCAP attched.
WARNING
The 1797-BCNR cannot be used in an intrinsically safe
environment after the ControlNet Ex connections have been
exposed to non-intrinsically safe signals.
In Out
Out
Channel A
Channel B
In
A
B
C43477
B

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Installation in Zone 2
This 1797-BCNR must not be exposed to the environment. This barrier
module has a protection factor of IP20. Mount the 1797-BCNR inside an
enclosure with a protection class IP54.
Installation in Zone 22
When the 1797-BCNR is installed in Zone 22, the following cabinets must be
used: IVK2-ISRPI-V16LC; IVK2-ISRPI-V8HYW; or IVK2-ISRPI-V8LC.
These cabinets can be purchased from:
Pepperl+Fuchs GmbH
Lilienthalstrasse 200
68307 Mannheim, Germany
Attn: PA Sales Dept.
Kirsten Becker
Telephone [phone]
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 IS-RPI 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
CE
Serial (manufacturing) number
Model Year

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Electrostatic Charge
Protect the system against electrostatic charge. Post a sign near this barrier
module: Attention! Avoid electrostatic charge. For your convenience, a
sign which can be cut out is included at the end of this installation instruction.
European Community (EC) Directive Compliance
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.
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, Electrical Equipment For Measurement, Control,
and Laboratory Use - Industrial EMC Requirements
ATTENTION
Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which
can cause internal damage and affect normal operation. Follow
these guidelines when you handle this equipment:
•Touch a grounded object to discharge potential static.
•Wear an approved grounding wriststrap.
•Do not touch connectors or pins on component boards.
•Do not touch circuit components inside the equipment.
•If available, use a static-safe workstation.
•When not in use, store the equipment in appropriate
static-safe packaging.

8FLEX Ex Redundant ControlNet Barrier Module
Publication 1797-IN536E-EN-P - August 2017
European Hazardous Location Approval
The following applies to products marked II (1)2 G
•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” according to EN 60079-11.
•Comply to Standards EN 60079-0:2006, EN 60079-11:2007, EN
60079-25:2004, and EN 60079-26:2004, reference certificate number
DMT 99 ATEX E 065 X.
•Are intended for use in areas in which explosive atmospheres caused
by gases, vapors, mists, or air are likely to occur occasionally. 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 the IECEx certification:
•Are intended for use in areas in which explosive atmospheres caused
by gases, vapors, mists, or air are likely to occur only infrequently and
for short periods. Such locations correspond to Zone 1 or 2
classification to IEC 60079-0.
•The type of protection is “[Ex ib] IIC” according to IEC 60079-11.
•Comply to Standards IEC 60079-0:2004, IEC 60079-11:2006, and
IEC 60079-25:2003, reference IECEx certificate number
IECEx BVS 09.0020X.
Special Conditions for Safe Use:
In immediate proximity of the modules of the system a warning marking has
to be affixed: Warning - Avoid electrostatic charging - see instructions.

FLEX Ex Redundant ControlNet Barrier Module 9
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UL, C-UL Compliance
If this product has the UL/C-UL mark, it has been designed, evaluated,
tested, and certified to meet the following relevant 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
•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
Inputs/Outputs
Do not apply any non-instrinsically safe signals to the FLEX Ex side of the
1797-BCNR.

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When used as an associated apparatus according to EN 60079-11, the
European directives and regulations must be followed.
Wiring
1. Connect the ControlNet Ex trunk cable to connector, terminal B
after removing the insulator boot.
2. Connect the redundant ControlNet Ex trunk cable to connector C
after removing the insulator boot.
3. Connect the ControlNet trunk cable to terminal A.
IMPORTANT
Only remove the 1797-BCNR covers if the ControlNet Ex tap
drop cable is installed.
43465
ControlNet
1797-BCNR
ControlNet Ex
IS
In Out
Out
Channel A
Channel B
In
AB
C
D
30502-mdin
E
Redundant cables

FLEX Ex Redundant ControlNet Barrier Module 11
Publication 1797-IN536E-EN-P - August 2017
4. Connect the redundant ControlNet trunk cable to terminal D.
5. Install a direct ground wire with a minimum diameter of 4mm2
between terminal Eand the PA Ground (Equipotential System) in the
hazardous area where the ControlNet Ex coax cable is installed.
Do not connect terminal Eor the DIN rail to a standard earth ground
connection in the safe area.
When using a 1797-BCNR, the total allowable length of a segment containing
standard RG-6 quad shield cable depends upon the number of nodes in your
segment. There is no minimum trunk-cable section length requirement. The
maximum allowable length of a segment which contains a 1797-BCNR is
500m. (1640 ft.) with two nodes connected (one node on each side of the
1797-BCNR).
Each additional node decreases the maximum length of the segment
according to the plot below. The maximum number of non-redundant media
nodes allowed on a segment is 21 with a maximum length of 250m (820 ft.).
Please note that the maximum number of redundant media nodes on a
segment is 11 with a maximum length of 250m (820ft.).
250
500
21 non-redundant
nodes or 11
redundant nodes
Number of Nodes with One 1797-BCNR
Segment Length (m)
43486

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Mounting Dimensions
Repair
The 1797-BCNR module is not field-repairable. Any attempt to open this
1797-BCNR module will void the warranty and the IS certification. If repair is
necessary, return the 1797-BCNR module to the manufacturer.
Specifications
1797-BCNR Specifications
Power Supply No power supply needed
Galvanic Isolation None
IS Module Type Ex [ib] IIC
ControlNet Ex System Uo7V
Io55mA @ 52KHz
Ponegligible
Non Ex ControlNet Un 5V
Um 253 VAC
I not defined
P not defined
Bus Non-EX side ControlNet International Version 1.5
Bus Ex side Ex version of ControlNet International Version 1.5
In Out
Out
Channel A
Channel B
In
43476
3.55
(9)
3.94
(10)
2.76
(7)
Inches
(Millimeters)

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Transmission Rate 5 Mbit/s
Transmission Attenuation -7.84dB
Weight Approximately 200g
Dimensions 3.94 in.(w) x 3.55 in.(d) x 2.76 in.(h)
10cm(w) x 9cm(d) x 7 cm(h)
Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20 to 70oC (-4 to 158oF)
Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry
Heat),
IEC 60068-2-14 (Test Na, Un-packaged Non-operating
Thermal Shock):
-20 to 100oC (-4 to 212oF)

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1797-BCNR Specifications
Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating
Damp Heat):
5 to 95% non-condensing
Shock IEC60068-2-27 (Test Ea, Unpackaged shock):
Operating 30g
Non-operating 50g
Vibration IEC60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
Emissions CISPR 11:
Group 1, Class A
ESD Immunity IEC 61000-4-2:
8kV indirect discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to
2000MHz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
EFT/B Immunity IEC 61000-4-4:
±2kV at 5kHz on communications ports
Surge Transient Immunity IEC 61000-4-5:
±2kV line-earth(CM) on shielded ports
Conducted RF Immunity IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to
80MHz
Enclosure Type Rating None (open-style)

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Certifications
Attribute Value
Agency Certification (when
product is marked)(1)
Marking and Classification
UL, C-UL Associated Apparatus, Class I, Division 2, Groups A, B, C
and D; Class II, Groups E, F and G; Class III Hazardous
Locations; Class I Zone 2, [AEx ib] IIC, (Ta = 70°C) when
installed accordance to with Control Drawing No.
1797-RM001.
Approval marks and certification numbers
Exam (ATEX) DMT 99 ATEX E065
UL, C-UL File No.: E197983
IECEx IECEx BVS 09.0020 X
Declaration of conformity Marking
(1) See the Product Certification link at www.ab.com for Declarations of Conformity,
Certificates, and other certification details

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Describing the ControlNet Ex System Diagrams
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; 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).
System
Diagram Name
Catalog
Number
Catalog Name Description
1797-RPA 1797-RPA ControlNet Ex
Modular Repeater
Adapter
Represents one ControlNet Ex
node and must be connected
to a coax trunk cable by
1797-TPx
1797-RPFM 1797-RPFM ControlNet Ex Fiber
Repeater Module,
Medium Distance
Allows connection of a
maximum of two devices per
1797-RPA and is powered
directly by 1797-RPA
1797-ACNR15 1797-ACNR15 Redundant Media
ControlNet Ex
Adapter
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)

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1797-BCNR 1797-BCNR ControlNet Ex
Redundant Media
Adapter
Allows connection between a
ControlNet system and a
ControlNet Ex system
CNet Ex Tap Trm 1797-TCAP ControlNet Ex Tap
(Dummy) Terminator
Represents one ControlNet Ex
node and is a simple capacitor
(56pF) with a coax connector
ControlNet Ex
Tap
1797-TPx ControlNet Ex Coax
Tap
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
CNet Ex Trk Trm 1797-XT ControlNet Ex Trunk
Terminator
Simple resistor (75Ω) with
coax connector that must be
on each end of the ControlNet
Ex coax trunk for termination
Coax Trunk Cable 1797-RG6 Quad-Shield, RG-6
75ΩCoax Trunk
Cable
Maximum (functional) length
between 2 1797-TPx is 3280ft
(1000m) - each 1797-TPx
reduces the (functional) coax
cable length by 53.4ft (16.3m)
None None Standard Coax Trunk
Cable BNC Couplers
Different standard cable
couplers, 90o, 180o, etc.
System
Diagram Name
Catalog
Number
Catalog Name Description

18 FLEX Ex Redundant ControlNet Barrier Module
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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
1797-RPFM 1797-RPFM Allen-Bradley
1797-ACNR15 1797-ACNR15 Allen-Bradley
Coax Trunk Cable11797-RG6 Allen-Bradley
3092A2Belden Wire & Cable Co.
3092A with blue jacket Belden Wire & Cable Co.
ControlNet Ex Tap 1797-TPx Allen-Bradley
CNet Ex Trk Trm 1797-XT Allen-Bradley
CNet Ex Tap Trm 1797-TCAP Allen-Bradley
1 In addition to these cable types, the following specification can be followed to allow additional
types:
Cable Impedance = 75Ω+ 3Ω
Cable Capacitance = <6nF per 100m
Cable Resistance = >9.08Ωper 100m
Cable Attenuation 0.2MHz >0.93dB/100m 5MHz >1.39dB/100m
(-20 to +70oC) 0.5MHz >0.95dB/100m 10MHz >1.86dB/100m
1MHz >1.07dB/100m 20MHz >2.73dB/100m
2MHz >1.16dB/100m 50MHz >4.33dB/100m
2 Belden Wire & Cable 1189A may be used, but with functional loss of communication distance
and/or nodes.

FLEX Ex Redundant ControlNet Barrier Module 19
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Certification Specific ControlNet Ex System Diagrams
The following pages include certification specific ControlNet Ex system
diagrams and notes pertaining to these diagrams. Select either CENELEC,
UL, C-UL, or FM and follow the requirements of that diagram as you
configure and install your system.
CENELEC Installation Label
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.
CENELEC Information
The isolator type 1797-BCNR/* is an associated apparatus according to
EN 60079-11. If the isolator is connected to intrinsically safe circuits the
applicable national local construction, installation and operating regulations
must be heeded (for example, Germany DIN EN 60079-11, DIN VDE
0165).
0102
ControlNet Ex System
Allen-Bradley
Attention!
Avoid electrostatic charging!
-200C <= Ambient Temperature <= +700C
1 Allen-Bradley Dr.
Mayfield Hts., OH USA
DMT 99 ATEX E 065 X
II (1)2G Ex ia ib IIC

20 FLEX Ex Redundant ControlNet Barrier Module
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1
.
.
.
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 (Pub. 1797-RM001).
fiber
ChB
ChA
Uo=5.4V,
Io=160mA,
F-3>500kHz
Power Supply
Ui=9.5V,
Ii=1A,
Ci<120nF,
Li=negligible
Ch1
Node 4... 48
Protect the system against electrostatic charge. Post a sign near the main components of the system: Attention! Avoid electrostatic charge
1797-ACNR15/* or RSD-GW-Ex2.CN
Uo=5.4V, Io=160mA, F-3>500kHz
ChB
ChA
Uo=5.4V,
Io=160mA,
F-3>500kHz
Power Supply
Ui=9.5V,
Ii=1A,
Ci<120nF,
Li=negligible
Node 3
1797-ACNR15/* or RSD-GW-Ex2.CN
Uo=5.4V, Io=160mA, F-3>500kHz
1797-RPFM/* or
RSD-FC-Ex2.CN 3km 1797-RPFM/* or
RSD-FC-Ex2.CN 3km
fiber
Ch0
fiber
Ch1
fiber
Ch0
Flexbus Uo=5.4V, Io=400mA, Po=2.16W, Co=65μF, Lo=10μH
Flexbus Uo=5.4V, Io=400mA, Po=2.16W, Co=65μF, Lo=10μH
CENELEC ControlNet Ex
System Diagram
1797-RPFM/* or
RSD-FC-Ex2.CN 3km
CNet Ex
trk trm
ControlNet Ex
tap
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.
ControlNet Ex
tap
coax trunk cable
75 Ohm
1W
Ci negl.
Li negl.
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.
*RG6-CNet is defined as:Cable Impedance = 75 Ohm + or - 3 Ohm Cable Capacitance <5.94nF per 100m
Cable Resistance >9.08 Ohm per 100m Cable Attenuation (-20 to +70oC) 0.2MHz > 0.93dB/100m 5MHz > 1.39dB/100m
0.5MHz > 0.95dB/100m 10MHz > 1.86dB/100m
1MHz > 1.07dB/100m 20MHz > 2.73dB/100m 2MHz > 1.16dB/100m 50MHz > 4.33dB/100m
coax trunk cable
Cable type 1189A, 3092A, or
3092A Blue from manufacturer
Belden Wire or type RG6-CNet*
ControlNet Ex
tap
Hazardous Area
Zone 1
Uo=5.4V, Io=201mA, F-3>500kHz Power Supply
Ui=9.5V,
Ii=1A,
Ci<120nF,
Li=negligible
PA (Euipotential bonding)
CNet Ex trk trm
Ci < 60pF
ControlNet Ex tap
CNet Ex
tap trm
Ci < 68pF
Li negl.
Li < 560nH
Li < 1100uH Li < 1100uH
Node 1
Node 2
(Safe Area)
Non Hazardous Location
1797-BCNR or
RS-FB-Ex2.CN
CNet
Hazardous Area
Zone 0
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/mm2(i.e., HFBR 1312 from
Hewlett-Packard manufacturer).
The ambient temperature range of the ControlNet Ex system is -20 to +70oC.
30670-Mp