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Installation Instructions
ControlLogix ControlNet Interface Module
Catalog Numbers 1756-CNB, 1756-CNBR, Series E
Contents
For
European Hazardous Location Approval
North American Hazardous Location Approval
Prevent Electrostatic Discharge
About the 1756-CNB and 1756-CNBR Series E Modules
Understand Standalone and Redundant Control
Install or Remove the Module Under Power
Connect the Module to the Network
Interpret the Module Status Indicator and Display
ControlNet Network Channel Status Indicators
See Page
About This Publication
Use this document as a guide to install the ControlLogix ControlNet Bridge module.
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2 ControlLogix ControlNet Interface Module
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 located on or inside the equipment (for example, drive or motor) to alert people that dangerous voltage may be present.
BURN HAZARD
Labels may be located on or inside the equipment (for example, drive or motor) to alert people that surfaces may be dangerous temperatures.
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ControlLogix ControlNet Interface Module 3
European Hazardous Location Approval
European Zone 2 Certification
(The following applies when the product bears the EEx Marking.)
This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/EC.
The LCIE (Laboratoire Central des Industries Electriques) certifies that this equipment has been found to comply with the Essential Health and Safety
Requirements relating to the design and construction of Category 3 equipment intended for use in potentially explosive atmospheres, given in
Annex II to this Directive. The examination and test results are recorded in confidential report No. 28 682 010.
Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 50021.
IMPORTANT
This equipment is not resistant to sunlight or other sources of UV radiation.
The secondary of a current transformer shall not be open-circuited when applied in Class I, Zone 2 environments.
Equipment of lesser Enclosure Type Rating must be installed in an enclosure providing at least IP54 protection when applied in Class
I, Zone 2 environments.
This equipment shall be used within its specified ratings defined by
Allen-Bradley.
Provision shall be made to prevent the rated voltage from being exceeded by transient disturbances of more than 40% when applied in Class I, Zone 2 environments.
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North American Hazardous Location Approval
The following information applies when operating this equipment in hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B,
C, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having
Jurisdiction at the time of installation.
Informations sur l'utilisation de cet équipement en environnements dangereux:
Les produits marqués “CL I, DIV 2, GP A, B, C, D” ne conviennent qu'à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d'équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation.
WARNING
EXPLOSION HAZARD
Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.
AVERTISSEMENT
RISQUE D'EXPLOSION
Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher l'équipement.
Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous.
Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.
Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher les connecteurs.
Fixer tous les connecteurs externes reliés à cet
équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.
Substitution of components may impair suitability for
Class I, Division 2.
If this product contains batteries, they must only be changed in an area known to be nonhazardous.
La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe I,
Division 2.
S'assurer que l'environnement est classé non dangereux avant de changer les piles.
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ControlLogix ControlNet Interface Module 5
Environment and Enclosure
ATTENTION
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 Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1, for additional installation requirements pertaining to this equipment.
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6 ControlLogix ControlNet Interface Module
Prevent Electrostatic Discharge
ATTENTION
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.
For additional information, refer to Industrial Automation Wiring and
Grounding Guidelines, publication 1770-4.1.
About the 1756-CNB and 1756-CNBR Series E Modules
The 1756-CNB and 1756-CNBR Series E modules work for all nonredundant
ControlLogix applications.
IMPORTANT
Only the 1756-CNB and 1756-CNBR, Series D modules are supported in ControlLogix Redundancy releases 8, 11, 13, and 15.
After a firmware upgrade to version 11.xx, Series E will be supported in ControlLogix Redundancy release 15 or later.
You cannot upgrade a Series D module to a Series E module.
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ControlLogix ControlNet Interface Module 7
Understand Standalone and Redundant Control
You can use the 1756-CNB and 1756-CNBR Series E modules as standalone or in firmware version 11.xx as redundant control. For standalone control, only one set of modules is required. For redundant control, two ControlLogix chassis are populated with identical pairs of modules called partners. The chassis that performs active control is called the primary chassis and the modules in the chassis are called primary modules. The other chassis is called the secondary chassis and the modules in the chassis are called secondary modules. These installation instructions discuss both standalone and redundant control; read them carefully to distinguish the procedures and requirements for each type of control.
IMPORTANT
If you use redundant control, you must select the same ControlNet network address for each set of partner modules. You must also place the partner modules in the same corresponding slots in their respective redundant control chassis pair.
Primary Chassis
Redundant Control
Chassis Pair
Secondary Chassis
I/O Chassis
1756-SRM
1756-CNB
1756-CNBR
1756-SRM
1756-CNB
1756-CNBR
1756-CNB
1756-CNBR
ControlNet
Network
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8 ControlLogix ControlNet Interface Module
Before You Begin
Before you install the module you need to make sure you:
• Know how to handle the module.
Refer to the section Prevent Electrostatic Discharge.
• Have all of the necessary components:
1756-CNB or 1756-CNBR 1756-A4, 1756-A7, 1756-A10,
1756-A13, or 1756-A17
1756-PA72/75 or 1756-PB72/75
Power Supply
1786-TPR,1786 -TPS
1786-TPYR, or1786 -TPYS
(1)
1786-TP (temporary network connections)
Small Screwdriver (optional)
(1)
1786-TPS or 1786-TPYS taps recommended for network connections.
• Know the type of ControlNet network:
There are two types of scheduled traffic networks for ControlNet: single-keeper networks and multi-keeper networks.
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ControlLogix ControlNet Interface Module 9
All 1756-CNB and 1756-CNBR modules are keeper-capable, as listed.
D
D
C
C
E
E
1756-CNB and 1756-CNBR
A
B
Major/Minor Revision Keeper Type
1.xx
2.xx
Single-keeper
Multi-keeper
3.xx
4.xx
5.xx
7.xx
10.xx
11.xx
Single-keeper
Multi-keeper
Multi-keeper
Multi-keeper
Multi-keeper
Multi-keeper
You must match the keeper to the type of network, or upgrade the firmware of the module at MAC ID 01 to be multi-keeper capable.
Refer to the ControlNet Modules in Logix5000 Control Systems User
Manual, publication CNET-UM001, for more information.
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10 ControlLogix ControlNet Interface Module
Identify Module Features
Refer to the figure Module Features to identify the hardware components of
the 1756-CNB and 1756-CNBR modules.
Module Features
Network Address
Switches
Backplane
Connector
Module Status
Alphanumeric
Display
ControlNet
Network
Channel Status
Indicators
Network
Access Port
Module
Status
Indicator
Channel B
BNC Connector
(1756-CNBR only)
Front View
BNC Connector
Side View
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ControlLogix ControlNet Interface Module 11
Set the Module’s Network Address Switches
Use your fingers or a small screwdriver to set the module’s network address switches. For modules in a standalone chassis, you must specify a unique
ControlNet network address; for modules in a redundant chassis, you must specify the same address for the secondary module that you specified for the corresponding primary module.
Side of Module Top of Module
TIP
This module’s network address is 23.
You can select an address of 01 to 99 for modules in a standalone chassis or 01 to 98 for modules in redundant chassis. 00 is an invalid ControlNet network address.
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12 ControlLogix ControlNet Interface Module
Prepare the Chassis for Module Installation
Before you install the module, you must install and connect a ControlLogix chassis and power supply. A 4-slot chassis with a power supply is shown in the
figure Chassis and Power Supply.
Chassis and Power Supply
Power
Supply
Chassis
For information on installing these products, refer to the table Chassis
Chassis Installation Publications
Chassis Type Chassis Installation Power Supply Power Supply
Installation
Series B
1756-A4
1756-A7
1756-A10
1756-A13
Publication
1756-IN080
1756-PA72/B
1756-PB72/B
1756-PA75/A
1756-PB75/A
Publication 1756-5.67
Publication 1756-5.78
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ControlLogix ControlNet Interface Module 13
Determine Module Slot Location
The figure Chassis Slot Numbering shows chassis slot numbering in a 4-slot
chassis. Slot 0 is the first slot and is always the leftmost slot in the rack (the first slot to the right of the power supply). You can use any size ControlLogix chassis and install the module in any slot. You can also install multiple
1756-CNB and 1756-CNBR modules in the same chassis. You can install as many modules as your power supply can accommodate (such as the number for which the power supply is rated).
IMPORTANT
If you plan to install a redundant system, you must place the primary and redundant modules in the same corresponding slot in their respective chassis. For example, if you place a 1756-CNBR module in slot 3 (from the left) in the primary chassis, you must also place a 1756-CNBR module in slot 3 in the redundant chassis.
Chassis Slot Numbering
Slot 0 Slot 2
Slot 1 Slot 3
Power Supply
Chassis
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14 ControlLogix ControlNet Interface Module
Install or Remove the Module Under Power
You can install or remove the module while chassis power is applied if you observe the following precautions.
WARNING
When 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. Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance that can affect module operation.
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Install the Module
ControlLogix ControlNet Interface Module 15
Align the circuit board with top and bottom guides in the chassis.
Slide the module into the chassis. Make sure the module backplane connector properly connects to the chassis backplane
Circuit
Board
The module is properly installed when it is flush with the power supply or other installed modules.
ATTENTION
Do not force the module into the backplane connector. If you cannot seat the module with firm pressure, check the alignment. Forcing the module into the chassis can damage the backplane connector or the module.
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16 ControlLogix ControlNet Interface Module
Remove the Module
Upper Tab
Push on the upper and lower tabs to disengage them. Then slide the module out of the chassis.
If you are replacing an existing module with an identical one, and you want to resume identical system operation, you must install the new module with the same ControlNet address in the same slot.
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ControlLogix ControlNet Interface Module 17
Connect the Module to the Network
You can connect the module to the ControlNet network using a tap
(1786-TPR, 1786-TPS, 1786-TPYR, or 1786-TPYS) or a network access cable
(1786-CP).
WARNING
If you connect or disconnect the communications cable with power applied to this module or any device on the network, an electrical arc can occur. This could cause an explosion in hazardous location installations.
TIP
Use the 1786-CP cable for temporary connections, such as programming software. For permanent connections, use a tap.
The following figure shows an example ControlNet network using redundant media.
1756-CNBR Module
(in a 1756-A4 chassis)
ControlNet Network
Node
Redundant Media
(optional)
ControlNet Link
ControlNet
Node
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18 ControlLogix ControlNet Interface Module
When connecting the module to a ControlNet network, you should also refer to the following documentation:
• ControlNet Coax Tap Installation Instructions, publication 1786-5.7
• ControlNet Cable System Planning and Installation Manual, publication CNET-IN002
TIP
For network connections we recommend taps with a straight connector (1786-TPS or 1786-TPYS) because of the location of the
BNC connectors on the bottom of the module.
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ControlLogix ControlNet Interface Module 19
Connect to the Network with a Tap
Perform the following steps to connect the module to the network using a tap.
1.
Remove and save the dust caps from the ControlNet network taps.
ATTENTION
Do not allow any metal portions of the tap to contact any conductive material. If you disconnect the tap from the module, place the dust cap back on the straight or right-angle connector to prevent the connector from accidentally contacting a metallic grounded surface.
Segment 1 Segment 2
1756-CNB - Segment 1
1756-CNBR - Segments 1 and 2
Dust Cap
Dust Cap
2.
Connect the tap’s straight or right-angle connector to the module’s
BNC connector.
If Your Node Supports nonredundant media
1756-CNB redundant media
Connect The Tap’s Connector to the channel A connector on the module
(channel B on the 1756-CNBR is not used)
(1)
• from trunkline A to channel A on the
1756-CNBR
• from trunkline B to channel B on the
1756-CNBR
(1)
While both channels are active, Rockwell recommends using channel A for nonredundant media.
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20 ControlLogix ControlNet Interface Module
IMPORTANT
To prevent inadvertent reversal of the tap connections (resulting in incorrect status displays requiring troubleshooting), check the tap drop cable for the label indicating the attached segment before making your connection.
To work properly, when you use modules in a redundant control chassis pair, the primary and redundant partner modules must be connected to the same network segment. If you are using redundant media, connect the channel of each partner to the same network segment.
Segment 1
Tap
A
Segment 2
B
Tap
A
Tap
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ControlLogix ControlNet Interface Module 21
3.
Apply power to the module and check module status.
Use the following flowchart as a guide.
Turn the chassis power supply on.
Module status indicator red?
No
See the
Troubleshoot section.
Yes
Module performs a power-on self-test initialization.
INIT
Module status indicator red?
Yes
INIT has failed, and the module displays an error message. Refer to
Troubleshoot section.
No
OR
Modules are in a redundant control chassis pair.
WAIT
SRM
Initialization is complete. The status indicator blinks green.
Channel A and B indicators alternately flash.
Channel A and B indicators display the network condition as
Replace the module.
Yes
Module status displays
OK?
Module is functional and operating.
OK
A#xx
No
See the
Troubleshoot section.
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Connect a Programming Terminal to the Network with a 1786-CP
Cable
To connect a programming terminal to the network using a 1786-CP cable, you have the following options:
• Use a 1784-KTC, 1784-KTC x, or 1784-PCC communication card and a 1786-CP cable:
1756-CNBR 1784-KTC, KTCx,
PCIC, or PCC Card
1786-CP Cable
ControlNet Link
IMPORTANT
To work properly, the primary and redundant partner module must be connected to the same network segment. If you are using redundant media, connect the channel of each partner to the same network segment.
• Use a 1770-KFC communication interface, a serial or parallel connection, and a 1786-CP cable:
1756-CNBR
1770-KFC
1786-CP
Cable
Serial or Parallel
Connections
ControlNet Link
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ControlLogix ControlNet Interface Module 23
The 1786-CP cable can be plugged into any ControlNet network product’s network access port (NAP) to provide programming capability on the
ControlNet network. A programming terminal connected through this cable is counted as a node and must have a unique network address.
ATTENTION
Use a 1786-CP cable when connecting a programming terminal to the network through network access port (NAP). Using a commercially available RJ-style cable could result in network failure.
Troubleshoot the Module
The 1756-CNB and 1756-CNBR modules have the diagnostic indicators as shown:
1756-CNB 1756-CNBR
Module Status Display - See
Module Status Indicator -
ControlNet Channel Status
Channel A BNC Connector
Channel B BNC Connector
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Interpret the Module Status Indicator and Display
The Module Status Indicator LED and Module Status Display table provide diagnostic information.
Module Status Indicator LED and Module Status Display
LED Display
Cause Action
OK
Off
Red
None
Msg scrolls
(1)
BPA#
ERR
BPRX
ERR
BPIC
ERR
ERR
CNIC
The module is not communicating due to a power supply fault or internal fault.
The module’s network address is set to 00, an invalid ControlNet network address, or 99, an invalid ControlNet network address if you are using redundant control. See footnote at end of table.
1. Check the power supply.
2. Check the cable connectors.
3. Make sure the module is firmly seated in the chassis.
4. If the indicator remains off, replace the module.
Turn chassis power supply off.
2. Remove the module from the chassis.
3. Set the network address switches to a unique address
(01-99, or 01-98 if redundant control)
4. Install the module in the chassis.
5. If off, turn chassis power supply on.
Replace the chassis or module.
The module detected a different slot address from that latched in at power-up. Excessive noise on the backplane causes this error.
There are too many CRC errors being generated by the multicast backplane receiver, so the backplane multicast receivers have been shut off.
There is a hardware fault within the module.
Replace the module.
Replace the module.
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ControlLogix ControlNet Interface Module 25
Module Status Indicator LED and Module Status Display
LED Display
OK
Red DUPL
NODE
RACK
ERR
STOP
WAIT
SRM
(2)
Flashing
Red
BOOT
ROM
Cause Action
For a redundant system this may be a temporary condition during chassis switchover. Otherwise, the module’s network address is the same as another module’s on the link.
1. (For redundant systems only.)
Wait 10 seconds; if the condition persists, perform the following steps:
Turn chassis power supply off.
3. Remove the module from the chassis.
4. Set the network address switches to a unique address
(01-99).
5. Install the module in the chassis.
6. If off, turn chassis power supply on.
Replace the chassis.
Cannot read backplane EEPROM, or rack/slot address incorrect
The module commanded to stop functioning by the redundancy module. This occurs when a nonredundancy compliant module is placed into a redundant secondary chassis.
The module waiting for the redundancy module to complete power-up.
The module has invalid firmware.
Flash update is in progress.
Remove nonredundancy compliant module from redundant secondary chassis and replace with redundancy compliant module.
None required.
Update module firmware with
ControlFlash Update Utility.
None required.
UPDT
SNGL
KPR!
The module detected that it has been connected to a ControlNet
1.5 (single-keeper) network.
Update the module’s firmware at
MAC ID 01 and reschedule the network.
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26 ControlLogix ControlNet Interface Module
Module Status Indicator LED and Module Status Display
LED Display
OK
Green
Cause Action
OK
INIT
BW
>MAX
CMPT
DSNP
SW
ERR
PwDS
PwQg
PwQS
Normal operation
The module is initializing.
The module is receiving too much network traffic and connections are timing out. The network bandwidth has been exceeded.
The secondary module is compatible with its partner.
The secondary module is disqualified with no partner.
None required
None (temporary condition).
If this happens frequently, add another 1756-CNB or 1756-CNBR and split the traffic between them.
None required.
The module is primary with a disqualified secondary partner.
The module is primary with a qualifying secondary partner.
The module is primary with a qualified secondary partner.
The module is primary with no secondary partner.
Check corresponding slot of primary chassis for type and revision of module.
Check the type and revision of the
1756-CNB module.
Redundant system status. No action required.
Check corresponding slot of secondary chassis for correct module.
Redundant system status. No action required.
The secondary module is qualifying.
The secondary module is qualified.
The node address switch changed after power-up.
None required, but we recommend that you either return switches to their original settings or replace the module, since this could indicate a latent hardware problem.
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ControlLogix ControlNet Interface Module 27
Module Status Indicator LED and Module Status Display
LED Display
Cause Action
OK
Flashing
Green
Green or
Off
CNFG
ERR
NET
ERR
SO_1
SO_2
SO_3
?Cpt
ControlNet network configuration error.
Network cabling error or no other active nodes on network.
Old primary switchover phase 1 in progress.
Old primary switchover phase 2 in progress.
Old primary switchover phase 3 in progress.
New primary switchover phase 1 in progress.
New primary switchover phase 2 in progress.
New primary switchover phase 3 in progress.
the module has not determined if it is compatible.
the module has determined that it is not compatible.
Recheck configuration.
Re-check your network cabling and make sure another node on the network is active (online).
If the display shows any message for more than three seconds, then the module failed during transition from one redundancy phase to another. Replace one or both redundancy modules.
Replace the module with correct type and revision.
(1)
If switches are set to 00 the display scrolls: “FAULT: ADDRESS SWITCHES = 00, ILLEGAL”
If switches are set to 99 in a redundant chassis, the display scrolls: “FAULT: ADDRESS SWITCHES =
99, ILLEGAL IN REDUNDANT SYSTEM”
(2)
Messages are for redundant control. These messages will be available in Series E firmware version
11.xx.
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28 ControlLogix ControlNet Interface Module
ControlNet Network Channel Status Indicators
The ControlNet network channel status indicators appear in one of the following states:
• Steady - indicator is on continuously in the defined state.
• Alternating - the two indicators alternate between the two defined states at the same time (applies to both indicators viewed together).
The two indicators are always in opposite states, out of phase.
• Flashing - the indicator alternates between the two defined states
(applies to each indicator viewed independent of the other). If both indicators are flashing, they must flash together, in phase.
The ControlNet Network Channel Status Indicators table summarizes the meanings of these states.
ControlNet Network Channel Status Indicators
Cause Action and
A B
Off
Steady red
No power
Faulted unit
None or power up.
Cycle power or reset unit.
If fault persists, contact A-B representative or distributor.
None Alternating red/green
Self-test
Alternating red/off Incorrect node configuration
Cause
Check network address and other
ControlNet network configuration parameters.
Action
A
Off or
B
Channel disabled
Steady green Normal operation
Flashing green/off Temporary errors
Program network for redundant media, if required.
None
None; unit will self-correct.
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ControlLogix ControlNet Interface Module 29
ControlNet Network Channel Status Indicators
Cause Action and
A B
Node is not configured to go on line
Make sure the configuration manager node is present and working and selected address is not greater than selected UMAX
.
(1)
Flashing red/off Media fault Check media. For example: broken cables, loose connectors, missing terminators.
No other nodes present on network
Add other nodes to the network.
Flashing red/green Incorrect network configuration Cycle power or reset unit.
If fault persists, contact A-B representative or distributor.
(1)
The configuration manager node is the node responsible for distributing ControlNet network configuration data to all nodes on the network.
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30 ControlLogix ControlNet Interface Module
Specifications
ControlLogix ControlNet Interface Module 1756-CNB, 1756-CNBR, Series E
Attribute
Connectors
1756-CNB
1756-CNBR
Value
1 BNC connector for nonredundant media operation
1 NAP (RJ-45 8-pin with shield)
2 BNC connectors for redundant media operation
1 NAP (RJ-45 8-pin with shield)
Quad shield RG-6 coaxial cable
Transformer
5 M
Cable
Ground isolation
ControlNet network communication rate
Diagnostics
Weight
1756-CNB
1756-CNBR
Mounting type
Mounting location
Number of nodes, max
Slot width
Connections supported, max
Communication interface type
Device type
Power dissipation
Thermal dissipation
Yes
0.260 kg (0.57 lb)
0.293 kg (0.64 lb)
Chassis
1756 ControlLogix Chassis
99
1
64
Bridge
Communication interface
5.14 W
17.5 BTU/hr
Publication 1756-IN604A-EN-P - February 2006
ControlLogix ControlNet Interface Module 31
ControlLogix ControlNet Interface Module 1756-CNB, 1756-CNBR, Series E
Attribute
Backplane current
Isolation voltage
(continuous-voltage withstand rating)
Wiring category
(1)
Value
970 mA @ 5.1 V
1.7 mA @ 24 V
50V
Tested to 500V ac for 60 seconds
2 - on communications ports
(1)
Use this Conductor Category information for planning conductor routing. Refer to Industrial
Automation Wiring and Grounding Guidelines, publication 1770-4.1.
Environmental Specifications ControlLogix ControlNet Interface Module
1756-CNB, 1756-CNBR, Series E
Attribute
Operational temperature
Storage temperature
Relative humidity
Vibration
Operating shock
Nonoperating shock
Emissions
Value
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):
0…60 °C (32…140 °F)
IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock):
-40…85 °C (-40…185 °F)
IEC 60068-2-30 (Test Db, Unpackaged Nonoperating Damp Heat):
5…95% noncondensing
IEC 60068-2-6 (Test Fc, Operating):
2 g @ 10…500 Hz
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
30 g
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
50 g
CISPR 11:
Group 1, Class A
Publication 1756-IN604A-EN-P - February 2006
32 ControlLogix ControlNet Interface Module
Environmental Specifications ControlLogix ControlNet Interface Module
1756-CNB, 1756-CNBR, Series E
Attribute
ESD immunity
Radiated RF immunity
Series E
Value
IEC 61000-4-2:
6 kV contact discharges
8 kV air discharges
IEC 61000-4-3:
10 V/m with 1 kHz sine-wave 80%AM from 30…2000 MHz
10 V/m with 200 Hz 50% Pulse 100%AM at 900 MHz
10 V/m with 200 Hz 50% Pulse 100%AM at 1890 MHz
1 V/m with 1 kHz sine-wave 80%AM from 2000 MHz…2700 MHz
EFT/B immunity IEC 61000-4-4:
±2 kV at 5 kHz on communications ports
Surge transient immunity IEC 61000-4-5:
±2 kV line-earth(CM) on communications ports
Conducted RF immunity IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80%AM from 150 kHz…80 MHz
Enclosure type rating None (open-style)
Publication 1756-IN604A-EN-P - February 2006
ControlLogix ControlNet Interface Module 33
Certifications 1756-CNB Series E and 1756-CNBR, Series E
Certification
Certifications
(when product is marked)
(1)
Value
UL UL Listed Industrial Control Equipment cULusUL Listed for Class I, Division 2 Group A,B,C,D
Hazardous Locations, certified for U.S. and Canada
CSA CSA Certified Process Control Equipment
CSA CSA Certified Process Control Equipment for Class I,
Division 2 Group A,B,C,D Hazardous Locations
FM FM Approved Equipment for use in Class I Division 2
Group A,B,C,D Hazardous Locations
CE European Union 89/336/EEC EMC Directive, compliant with:
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial
Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clause 8, Zone
A & B)
C-TickAustralian Radiocommunications Act, compliant with:
AS/NZS CISPR 11; Industrial Emissions
EEx European Union 94/9/EC ATEX Directive, compliant with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n” (Zone 2)
CI ControlNet Int'l conformance tested to ControlNet network specifications
(1)
See the Product Certification link at www.ab.com for Declarations of Conformity,
Certificates, and other certification details.
Publication 1756-IN604A-EN-P - February 2006
34 ControlLogix ControlNet Interface Module
Additional Resources
Publication Title
Industrial Automation Wiring and Grounding Guidelines
ControlNet Modules in Logix5000 Control Systems
ControlLogix Chassis Installation Instructions
ControlLogix Power Supplies Installation Instructions
ControlLogix Power Supplies Installation Instructions
ControlNet Coax Tap Installation Instructions
ControlNet Coax Media Planning and Installation Guide
ControlNet Fiber Media Planning and Installation Guide
ControlLogix is a trademark of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Publication Number
1770-4.1
CNET-UM001
1756-IN080
1756-IN078
1756-IN596
1786-5.7
CNET-IN002
CNET-IN001
Publication 1756-IN604A-EN-P - February 2006
Notes:
ControlLogix ControlNet Interface Module 35
Publication 1756-IN604A-EN-P - February 2006
Rockwell Automation Support
Rockwell Automation provides technical information on the web to assist you in using its 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 its 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.
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Publication 1756-IN604A-EN-P - February 2006 PN 953002-64
Copyright © 2006 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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