Allen-Bradley ControlNet Ex 1797-ACNR15 Installation Instructions Manual
Allen-Bradley ControlNet Ex 1797-ACNR15 is a redundant media adapter designed to connect FLEX Ex modules to ControlNet Ex networks in hazardous environments. It provides a reliable and secure connection for data transmission, ensuring uninterrupted communication in critical industrial applications. With its robust design and adherence to industry standards, the 1797-ACNR15 offers peace of mind and enhances the overall performance of your industrial network.
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Installation Instructions
ControlNet Ex Redundant Media Adapter
(Cat. No. 1797-ACNR15)
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 use notes to make you aware of safety considerations.
Allen-Bradley HMIs
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2 ControlNet Ex Redundant Media Adapter
Important User Information
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
ATTENTION
SHOCK HAZARD
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 drive to alert people that dangerous voltage may be present.
BURN HAZARD
Labels may be located on or inside the drive to alert people that surfaces may be dangerous temperatures.
1
2
3
4
8
5
1797-ACNR15
PWR
3
2
6
9
7
Do not remove unless connecting a terminal base unit.
41408
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ControlNet Ex Redundant Media Adapter 3
ATTENTION
Environment and Enclosure
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 supplies 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.
7
8
5
6
3
4
1
2
9
Use the redundant media adapter module to connect FLEX Ex TM modules to the ControlNet TM Ex network.
Component Identification
Indicators
Label
ControlNet Ex tap drop BNC connector channel A with insulator boot
ControlNet Ex tap drop BNC connector channel B with insulator boot
Module locking tab
Removable power connectors
Backplane connector
Backplane connector cover
Node address push switch
Allen-Bradley HMIs
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4 ControlNet Ex Redundant Media Adapter
Module Installation
This adapter must not be exposed to the environment. Provide a suitable metal enclosure. This adapter has a protection factor of IP20.
ATTENTION
This product is grounded through the DIN rail to the dedicated intrinsic safety ground. Use zinc plated yellow-chromate steel
DIN rail to assure proper grounding. The use of other DIN rail materials (e.g. aluminum, plastic, etc.) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding.
Make certain that you only connect ControlNet Ex adapters to other intrinsically safe system modules to maintain the integrity of the intrinsically-safe backplane.
41307
A
B
PWR
1797-ACNR15
3 2
PWR
3
2
C
41409
1.
Position the ControlNet Ex adapter 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 adapter ( A ) onto the top of the DIN rail ( B ), and rotate the module onto the rail.
3.
Press the adapter module down onto the DIN rail until flush.
4.
The locking tab ( C ) should snap into position and lock the adapter module to the DIN rail.
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ControlNet Ex Redundant Media Adapter 5
5.
If the adapter does not snap into position, use a screwdriver or similar device to move the locking tab down while pressing the adapter 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.
Connect the adapter wiring as shown under “Wiring” later in this document.
Mounting (or Replacing) the Adapter on an Existing System
1.
Disconnect the BNC connectors from the front of the ControlNet Ex adapter.
2.
Remove the front power plug from the ControlNet Ex adapter.
3.
Remove the I/O module from the terminal base unit that is to the immediate right of the ControlNet Ex adapter.
4.
Push the flexbus connector toward the right side of the terminal base to unplug the backplane connection.
ATTENTION
Make certain that the flexbus connector is completely clear of the adapter. The slide must be completely to the right and the raised spot on the slide visible.
5.
Release the locking tab and remove the adapter.
6.
Remove the backplane connector cover from the adapter.
Allen-Bradley HMIs
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6 ControlNet Ex Redundant Media Adapter
7.
Before installing the new adapter, notice the notch on the right rear of the adapter.
This notch accepts the hook on the terminal base unit. The notch is open at the bottom. The hook and adjacent connection point keep the terminal base and adapter tight together, reducing the possibility of a break in communication over the backplane.
40564
ATTENTION
Make certain that the hook on the terminal base is properly hooked into the adapter. Failure to lock the hook into the adjacent base/adapter can result in loss of communication on the backplane.
8.
Complete the adapter mounting as shown below.
Push down and in at the same time to lock the
When the adapter is locked onto the DIN rail, gently push the flexbus connector into adapter to the DIN rail.
the adapter to complete the backplane.
C 41410
9.
If the adapter module does not lock in place, use a screwdriver or similar device to move the locking tab ( C ) down while pressing the adapter module flush onto the DIN rail. Then release the locking tab to lock the adapter module in place.
10.
If necessary, push up on the locking tab to lock.
11.
Reinstall the I/O module into the terminal base unit.
12.
Make sure the last terminal base has its right-side flexbus connector cover in place.
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ControlNet Ex Redundant Media Adapter 7
Installation in Zone 1
The adapter must not be exposed to the environment. Provide a suitable metal enclosure. The adapter has a protection factor of IP20.
WARNING
The adapter cannot be used in an intrinsically safe environment after they have been exposed to non-intrinsically safe signals.
Installation in Zone 22
When the adapter 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
Konigsberger Allee 85-87, D-68307
Mannheim, Germany
Attn: PA Sales Dept.
Kirsten Becker
Telephone +49 776 1298 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
68301 Mannheim
IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or
IVK2-ISRPI-V16LC)
II 3D IP54 T 70°C
CE
Serial (manufacturing) number
Model
Allen-Bradley HMIs
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8 ControlNet Ex Redundant Media Adapter
Electrostatic Charge
Protect the system against electrostatic charge. Post a sign near this adapter:
Attention! Avoid electrostatic charge.
For your convenience, a sign which can be cut out is included in 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.
EMC Directive
These products 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:
• EN 61000-6-4:2001, Electromagnetic Compatibility (EMC) - Part 6-4:
Generic Standard for Industrial Environments (Class A)
• EN 61000-6-2:2001, 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
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ControlNet Ex Redundant Media Adapter 9
ATEX Directive
These products are tested in conjunction with associated I/O modules to meet the Council Directive 94/9/EC (ATEX) Equipment and Protective
Systems Intended for Use in Potentially Explosive Atmospheres by applying the following standards:
• EN50014:1997 + A1-A2, Electrical Apparatus for Potentially
Explosive Atmospheres
• EN50020:1994, Electrical Apparatus for Potentially Explosive
Atmospheres - Intrinsic Safety “i”
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 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
Allen-Bradley HMIs
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10 ControlNet Ex Redundant Media Adapter
FM Compliance
If this product has the FM mark, it has been designed, evaluated, tested, and certified to meet the following standards:
• FM C1. No.3600:1998, Electrical Equipment for Use in Hazardous
(Classified) Locations General Requirements
• FM C1. No.3610:1999, Intrinsically Safe Apparatus and Associated
Apparatus for Use in Class I, II, III Division 1 Hazardous (Classified)
Locations
• FM C1. No.3615:1989, Explosionproof Electrical Equipment General
Requirements
• FM C1. No.3810:1989, 1995, Electrical and Electronic Test,
Measuring and Process Control Equipment
• ANSI/NEMA 250, 1991, Enclosures for Electrical Equipment
Inputs/Outputs
Do not apply any non-intrinsically safe signals to the adapter.
When using as an intrinsically safe electrical apparatus according to EN50020, the European directives and regulations must be followed.
power supply
+V
-V channel A network bus channel B dual port
RAM flexbus uC uC
40055
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ControlNet Ex Redundant Media Adapter 11
ControlNet Ex Adapter Operation
The ControlNet Ex adapter combined with FLEX Ex output modules provides a two-tier fault state mechanism. It is important to consider and understand the operation of this mechanism when designing your system.
Two sets of programmable fault states are available, one each in the adapter and output module. This two-tier method is meant to give you a wider fault coverage compared with normal methods.
Network Communication Monitoring
The adapter is the primary monitor of network activity. If it detects loss of network communication, it can be programmed to:
• continue writing the last valid received data to the module (hold last state)
• apply local module safe states
(1)
• write a programmable fault state value to the module, depending upon the module type
This mechanism primarily targets fault behavior for loss of network communication.
Program Mode Behavior
The adapter also monitors the state of the controlling processor or scanner.
Two states can be detected: run mode and program mode (idle).
When run mode is detected, the adapter writes the output data received from the processor to the corresponding module output.
(1)
When program mode is detected, the adapter can be configured to:
• continue writing the last valid received data to the module (hold last state)
• apply local module safe states to zero
(1)
• write a programmable fault state value to the module, depending upon the module type
Allen-Bradley HMIs
This selection is shown as “Reset Outputs” in RSNetWorx but its action is “Apply Local Module Safe
States”.
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12 ControlNet Ex Redundant Media Adapter
FLEX Ex Output Module Operation
Flexbus Communication Monitoring
The module monitors flexbus communication activity and the state of its
Output Enable bit. If it detects loss of flexbus communication activity or the
Output Enable bit transitioning to 0, it can be programmed to:
• continue writing the last valid received data to the outputs (hold last state)
• reset the outputs
• write the local module fault state value to the output, depending upon the module type
This mechanism primarily targets fault behavior for loss of backplane communication.
Power-Up State Behavior
The system and modules use the Output Enable bit at system power-up. The power-up state of the Output Enable bit is 0 and must be transitioned to 1 through application program control to initialize activity of a module’s outputs.
Before the Output Enable bit is transitioned to 1, module outputs remain off.
Once the initial power-up and application-program control transitions the
Output Enable bit to 1, and module output activity begins, subsequent transitions of the Output Enable bit by any source will cause the output module to apply the local module fault state.
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ControlNet Ex Redundant Media Adapter 13
Wiring
1797-ACNR15
3 2
PWR
C E
ATTENTION
A B
G
D F
41411
When connecting wiring, torque terminal screws to 5-7 inch-pounds (0.8 - 1Nm).
WARNING
Make certain that you power this adapter with an intrinsically safe power supply. Do not exceed the values listed in the specifications for this adapter.
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.
1.
Connect the ControlNet Ex tap drop cable to connector, terminal A after removing the insulator boot.
IMPORTANT
The tap drop BNC must also have its insulator ring in position when inserted.
2.
Connect the redundant ControlNet Ex tap drop cable to connector B after removing the insulator boot.
IMPORTANT
The tap drop BNC must also have its insulator ring in position when inserted.
Allen-Bradley HMIs cable is installed.
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14 ControlNet Ex Redundant Media Adapter
3.
Apply +V and -V power to the adapter through a removable terminal block.
+V -V +V -V
+V -V +V -V
41297
Screw terminals and spring terminals are provided.
4.
Strip the +V and -V wires to a length so no bare conductor shows after inserting the wires into position (+V, -V).
5.
If you are using the spring terminals of the plug, insert a screwdriver into the slot and carefully pry until the spring clamp opens to accept the wire.
WARNING
Do not remove or replace an adapter when power is applied.
Interruption of the bus can result in unintended operation or machine motion.
Do not use any unused terminals on this adapter. Using these terminals as supporting terminals can result in damage to the module and/or unintended operation of your system.
Make certain that you power this adapter with an intrinsically safe power supply. Do not exceed the values listed in the specifications for this adapter.
6.
Set the network address using the 2-position push-switch G .
Valid settings range from 01 to 99. Press either the + or - buttons to change the number.
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ControlNet Ex Redundant Media Adapter 15
Describing the ControlNet Ex System Diagrams
A maximum of 48 ControlNet Ex TM 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).
Catalog Name Description System
Diagram Name
1797-RPA
Catalog
Number
1797-RPA
1797-RPFM 1797-RPFM
ControlNet Ex
Modular Repeater
Adapter
ControlNet Ex Fiber
Repeater Module,
Medium Distance
Represents one ControlNet Ex node and 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
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 Allen-Bradley HMIs
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16 ControlNet Ex Redundant Media Adapter
System
Diagram Name
Catalog
Number
CNet Ex Tap Trm 1797-TCAP
ControlNet Ex
Tap
1797-TPx
CNet Ex Trk Trm 1797-XT
Coax Trunk Cable 1797-RG6
None None
Catalog Name Description
ControlNet Ex Tap
(Dummy) Terminator
ControlNet Ex Coax
Tap
ControlNet Ex Trunk
Terminator
Quad-Shield, RG-6
75
Ω
Coax Trunk
Cable
Standard Coax Trunk
Cable BNC Couplers
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 (75
Ω
) 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, 90 o , 180 o , etc.
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ControlNet Ex Redundant Media Adapter 17
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
1797-RPA
1797-RPFM
1797-ACNR15
Coax Trunk Cable 1
ControlNet Ex Tap
CNet Ex Trk Trm
CNet Ex Tap Trm
Catalog Number
1797-RPA
1797-RPFM
1797-ACNR15
1797-RG6
3092A 2
3092A with blue jacket
1797-TPx
1797-XT
1797-TCAP
Source
Allen-Bradley
Allen-Bradley
Allen-Bradley
Allen-Bradley
Belden Wire & Cable Co.
Belden Wire & Cable Co.
Allen-Bradley
Allen-Bradley
Allen-Bradley
1 In addition to these cable types, the following specification can be followed to allow additional types:
Cable Impedance = 75
Ω
+ 3
Ω
Cable Capacitance = <6nF per 100m
Cable Resistance = >9.08
Ω
per 100m
Cable Attenuation 0.2MHz > 0.93dB/100m 5MHz > 1.39dB/100m
(-20 to +70 o
C) 0.5MHz > 0.95dB/100m
1MHz > 1.07dB/100m
2MHz > 1.16dB/100m
10MHz > 1.86dB/100m
20MHz > 2.73dB/100m
50MHz > 4.33dB/100m
2 Belden Wire & Cable 1189A may be used, but with functional loss of communication distance and/or nodes.
Allen-Bradley HMIs
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18 ControlNet Ex Redundant Media Adapter
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.
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
-20 0 C <= Ambient Temperature <= +70 0 C
Attention!
Avoid electrostatic charging!
0102
CENELEC 1797-ACNR15 I/O Entity Parameters
Terminals U o
(V) I o
(mA) Groups
Male Bus
Connector
5.4
400 IIB/IIC
C o
(
µ
F)
65
L o
(
µ
H)
10
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ControlNet Ex Redundant Media Adapter 19
CENELEC ControlNet Ex System Diagram
Allen-Bradley HMIs
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20 ControlNet Ex Redundant Media Adapter
UL, C-UL ControlNet Ex System Diagram
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ControlNet Ex Redundant Media Adapter 21
UL, C-UL ControlNet Ex System Diagram Notes
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 V oc
and I sc apparatus are less than or equal to V max
and I max
or V t
and I t
of the associated
of the intrinsically safe apparatus and the approved values of C a
and L a
of the associated apparatus are greater than C i
+ C apparatus.
cable
and L i
+ L cable
respectively for the intrinsically safe
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.
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 6 µ m.
UL, C-UL 1797-ACNR15 I/O Entity Parameters
Terminals V t
(V) I t
(mA) Groups
Male Bus
Connector
5.8
400 A-G
C a
(
µ
F)
3.0
L a
(
µ
H)
3.0
Allen-Bradley HMIs
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22 ControlNet Ex Redundant Media Adapter
FM ControlNet Ex System Diagram
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ControlNet Ex Redundant Media Adapter 23
FM ControlNet Ex System Diagram Notes
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 V oc
and I sc apparatus are less than or equal to V max
and I max
or V t
and I t
of the associated
of the intrinsically safe apparatus and the approved values of C a
and L a
of the associated apparatus are greater than C i
+ C apparatus.
cable
and L i
+ L cable
respectively for the intrinsically safe
Wiring methods must be in accordance with the National Electric Code,
ANSI/NFPA 70, Article 504 and 505. For additional information refer to
ANSI/ISA RP12.6.
WARNING: Substitution of components may impair intrinsic safety.
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 6 µ m.
The ControlNet Ex tap must be connected directly to the module (no additional cable may be connected).
Must be FM approved.
Total coax trunk cable length is limited to 1000m (3280 ft) with up to 2
ControlNet Ex taps connected and to 250m (820 ft) with the maximum allowed ControlNet Ex taps of 48. For ControlNet Ex taps between 2 and 48 use: 1000m (3280 ft) - 16.3m (53.4 ft) x (number of taps - 2) to find the maximum allowed cable length.
Power supplies are suitable for mounting in Class I, Division 1, Groups
B-D or Class I, Zone 1, Group IIC.
The maximum number of 1797-ACNR15 modules that can be connected to one system is 47.
11 one system is 47.
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24 ControlNet Ex Redundant Media Adapter
FM 1797-ACNR15 I/O Entity Parameters
Terminals V t
(V) I t
(mA) Groups
Male Bus
Connector
5.8
400 A-G
C a
(
µ
F)
3.0
L a
(
µ
H)
3.0
Indicators
The figure below identifies indicators on the adapter module.
comm A
1797-ACNR15 comm B module status
PWR
3 2
Comm, Module, and Power Status Indicators
Status Indicators Probable Cause
Comm A and Comm B Simultaneously
Off No power, or reset
Red
Red/Grn - (flashing alternately)
Adapter inoperative
Adapter self-test
Red/Off - (flashing alternately)
Bad node configuration (duplicate address) power
41412
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ControlNet Ex Redundant Media Adapter 25
Comm A or Comm B Individually
Off
Green
Flashing Grn/Off
Flashing Red/Off
Channel disabled
Channel operational
Temporary network errors
Cable fault, broken cable, redundancy warning
Bad network configuration Flashing Red/Grn
Status Indicator
Off
Flashing Grn
Green
Flashing Red
No power
On-line, but not connected
On-line, link okay, connected
I/O module removed, wrong I/O module inserted, FLASH program update in progress
Critical - adapter failure Red
Module Status
Steady Green
Flashing Green
Flashing Red
At least one connection is established.
No connections are established.
Module removed, wrong module reinserted, or flash update in progress.
Bad adapter.
Steady Red
Power
Steady Green Power is applied to the module.
Allen-Bradley HMIs
Publication 1797-5.14 - March 2004
26 ControlNet Ex Redundant Media Adapter
Mounting Dimensions
3.6
(92)
1797-ACNR15
3.4
(87)
ATTENTION
PWR
3
2
3.7
(94)
Inches
(Millimeters)
41413
The DIN rail or mounting bracket must be appropriately connected to the dedicated intrinsic safety ground.
About the Mounting Kit
Use the optional 1794-NM1 mounting kit to mount your system on a panel or wall without a DIN rail.
1794-NM1
Mounting Kit with
18 screws (2 screws for the adapter and 2 screws for each module)
30238
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ControlNet Ex Redundant Media Adapter 27
Repair
The adapter module is not field-repairable. Any attempt to open this adapter module will void the warranty and the IS certification. If repair is necessary, return the adapter module to the manufacturer.
IMPORTANT
For detailed certification information, refer to the FLEX Ex
System Certification Reference Manual, publication
1797-6.5.6.
Attention: Avoid electrostatic charge.
Allen-Bradley HMIs
Publication 1797-5.14 - March 2004
28 ControlNet Ex Redundant Media Adapter
1797-ACNR15 Specifications
I/O Capacity
IS Media Type
IS Module Type
8 modules
EEx ib IIB/IIC T4,
AEx ib IIC T4,
Class I, Division 1 Groups A-G T4
EEx ib IIB/IIC T4,
AEx ib IIC T4,
Class I Division 1 Groups A-D T4
Communication Rate 5M bit/s
ControlNet Ex BNC (ChA and ChB) Oscillation powered by:
U o
< 5.4V dc
I o
< 160mA
Indicators ac coupled with high-pass filter f
-3
> 500kHz
Comm Ared/grn
Comm Bred/grn
Module Statusred/grn
Output (Intrinsically Safe)
(16 position male/female flexbus connector)
Isolation Path
Flexbus to Power Supply
Flexbus to ControlNet
ControlNet Ex Node to Other
Node
ControlNet Ex to Power Supply
Power Supply
(+V, -V Intrinsically Safe)
Powergrn
U o
I o
P o
L o
< 5.4V dc
< 400mA
< 2.16W
< 10
µ
H
< 65
µ
F C o
Galvanic to DIN EN50020
Galvanic functional
Galvanic functional
I i
P i
L i
C i
Galvanic to DIN EN50020
U i
< 9.5V dc
< 1A
< 9.5W
= Negligible
< 120nF
Power Consumption
Power Dissipation
Thermal Dissipation
8.5W
8.5W
29 BTU/hr
Publication 1797-5.14 - March 2004
ControlNet Ex Redundant Media Adapter 29
1797-ACNR15 Specifications (Continued)
Conductor Wire Size 12 gauge (4mm 2 ) stranded maximum
3/64in (1.2mm) insulation maximum
Approximately 200g Weight
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
-20 to 70 o C (-4 to 158 o F)
-40 to 85 o C (-40 to 185 o F)
5 to 95% noncondensing
ShockOperating
FM
Non-Operating
Vibration
Agency Certification
CENELEC
UL, C-UL
Tested 15g peak acceleration, 11 (±1)ms pulse width
Tested 15g peak acceleration, 11 (±1)ms pulse width
Tested 2g @ 10-500Hz per IEC 68-2-6
II 2G EEx ib IIB/IIC T4
Class I Division 1 & 2 Groups A-D T4
Class I Zone 1 & 2 AEx ib IIC T4
Class I Division 1 Groups A-D T4
Class I Zone 1 AEx ib IIC T4
Certificates
CENELEC DMT 99 ATEX E008 X
UL, C-UL
FM
UL Certificate Number 99.19699
C US
Class I Division 1 Hazardous
FM Certificate Number 3010810
Allen-Bradley HMIs
Publication 1797-5.14 - March 2004
30 ControlNet Ex Redundant Media Adapter
Ferrite Beads
Five ferrites come with each ControlNet Ex adapter. Four are identical and are for use on the ControlNet Ex trunk cable as shown below (two for
Segment A and two for Segment B). The fifth ferrite is longer and you use it on the adapter power cable.
Wrap the IS power input cable two turns around the ferrite bead before connecting the terminal block to the adapter.
Five ferrite beads come with the adapter. Four are short and identical.
Use these on the ControlNet Ex trunk cable. The fifth, longer ferrite bead is for the adapter power cable.
42206
Add ferrite beads on the ControlNet Ex trunk cable inside the cabinet wherever the trunk cable goes into or out of the cabinet.
Only Segment B is shown with ferrites. If you use Segment A, then add ferrites similar to Segment B.
ferrite beads
30890-M
ControlNet is a trademark of ControlNet International.
ControlNet Ex is a trademark of Rockwell Automation.
Publication 1797-5.14 - March 2004
Notes:
ControlNet Ex Redundant Media Adapter 31
Allen-Bradley HMIs
Publication 1797-5.14 - March 2004
Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in using our products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and troubleshooting, we offer TechConnect Support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running:
United States
Outside United States
1.440.646.3223 Monday – Friday, 8am – 5pm EST
Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell tests all of our products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned:
United States
Outside United States
Contact your distributor. You must provide a Customer Support case number
(see phone number above to obtain one) to your distributor in order to complete the return process.
Please contact your local Rockwell Automation representative for return procedure.
Publication 1797-5.14 - March 2004
Supersedes Publication 1797-5.14 - December 2003 and 1797-RN005A-EN-P - July 2000
PN 957867-40
Copyright © 2004 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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