Allen-Bradley ControlNet Ex 1797-ACNR15 Installation Instructions Manual
Allen-Bradley ControlNet Ex 1797-ACNR15 Installation Instructions Manual

Allen-Bradley ControlNet Ex 1797-ACNR15 Installation Instructions Manual

Redundant media adapter

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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-Bradle

Installation Instructions

Publication
1797-5.14 - March 2004

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Summary of Contents for Allen-Bradley ControlNet Ex 1797-ACNR15

  • Page 1: Installation Instructions

    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.
  • Page 2 2 ControlNet Ex Redundant Media Adapter Important User Information Identifies information about practices or circumstances that can cause an explosion in a WARNING hazardous environment, which may lead to personal injury or death, property damage, or economic loss. Identifies information that is critical for successful application and understanding of the IMPORTANT product.
  • Page 3 ControlNet Ex Redundant Media Adapter 3 Environment and Enclosure ATTENTION This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance. This equipment is supplies as “open type”...
  • Page 4: Module Installation

    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. This product is grounded through the DIN rail to the dedicated ATTENTION intrinsic safety ground.
  • Page 5 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.
  • Page 6 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.
  • Page 7 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. The adapter cannot be used in an intrinsically safe environment WARNING after they have been exposed to non-intrinsically safe signals.
  • Page 8: Electrostatic Charge

    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.
  • Page 9 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: •...
  • Page 10 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 •...
  • Page 11 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.
  • Page 12 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: •...
  • Page 13 ControlNet Ex Redundant Media Adapter 13 Wiring 41411 When connecting wiring, torque terminal screws to 5-7 ATTENTION inch-pounds (0.8 - 1Nm). Make certain that you power this adapter with an intrinsically WARNING safe power supply. Do not exceed the values listed in the specifications for this adapter.
  • Page 14 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).
  • Page 15: Describing The Controlnet Ex System Diagrams

    ControlNet Ex Redundant Media Adapter 15 Describing the ControlNet Ex System Diagrams A maximum of 48 ControlNet Ex 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;...
  • Page 16 16 ControlNet Ex Redundant Media Adapter System Catalog Catalog Name Description Diagram Name Number CNet Ex Tap Trm 1797-TCAP ControlNet Ex Tap Represents one ControlNet Ex (Dummy) Terminator node and is a simple capacitor (56pF) with a coax connector ControlNet Ex 1797-TPx ControlNet Ex Coax Four types of connections...
  • Page 17 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 Catalog Number Source 1797-RPA 1797-RPA Allen-Bradley 1797-RPFM 1797-RPFM Allen-Bradley 1797-ACNR15 1797-ACNR15 Allen-Bradley 1797-RG6 Allen-Bradley Coax Trunk Cable Belden Wire &...
  • Page 18: Certification Specific Controlnet Ex System Diagrams

    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...
  • Page 19 ControlNet Ex Redundant Media Adapter 19 CENELEC ControlNet Ex System Diagram Allen-Bradle Publication 1797-5.14 - March 2004...
  • Page 20: Ul, C-Ul Controlnet Ex System Diagram

    20 ControlNet Ex Redundant Media Adapter UL, C-UL ControlNet Ex System Diagram Publication 1797-5.14 - March 2004...
  • Page 21 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 and I or V and I of the associated...
  • Page 22: Fm Controlnet Ex System Diagram

    22 ControlNet Ex Redundant Media Adapter FM ControlNet Ex System Diagram Publication 1797-5.14 - March 2004...
  • Page 23 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 and I or V and I of the associated...
  • Page 24: Comm, Module, And Power Status Indicators

    24 ControlNet Ex Redundant Media Adapter FM 1797-ACNR15 I/O Entity Parameters Terminals (mA) Groups (µF) (µH) Male Bus Connector Indicators The figure below identifies indicators on the adapter module. comm A power comm B module status 41412 Comm, Module, and Power Status Indicators Status Indicators Probable Cause Comm A and Comm B Simultaneously...
  • Page 25 ControlNet Ex Redundant Media Adapter 25 Comm A or Comm B Individually Channel disabled Green Channel operational Flashing Grn/Off Temporary network errors Flashing Red/Off Cable fault, broken cable, redundancy warning Flashing Red/Grn Bad network configuration Status Indicator No power Flashing Grn On-line, but not connected Green On-line, link okay, connected...
  • Page 26: Mounting Dimensions

    26 ControlNet Ex Redundant Media Adapter Mounting Dimensions (92) (87) Inches (Millimeters) (94) 41413 The DIN rail or mounting bracket must be appropriately ATTENTION 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.
  • Page 27 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. For detailed certification information, refer to the FLEX Ex IMPORTANT System Certification Reference Manual, publication 1797-6.5.6.
  • Page 28 28 ControlNet Ex Redundant Media Adapter 1797-ACNR15 Specifications I/O Capacity 8 modules IS Media Type EEx ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Groups A-G T4 IS Module Type EEx ib IIB/IIC T4, AEx ib IIC T4, Class I Division 1 Groups A-D T4 Communication Rate 5M bit/s...
  • Page 29 ControlNet Ex Redundant Media Adapter 29 1797-ACNR15 Specifications (Continued) Conductor Wire Size 12 gauge (4mm ) stranded maximum 3/64in (1.2mm) insulation maximum Weight Approximately 200g Environmental Conditions Operational Temperature -20 to 70 C (-4 to 158 Storage Temperature -40 to 85 C (-40 to 185 Relative Humidity 5 to 95% noncondensing...
  • Page 30: Ferrite Beads

    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.
  • Page 31 ControlNet Ex Redundant Media Adapter 31 Notes: Allen-Bradle Publication 1797-5.14 - March 2004...
  • Page 32: Rockwell Automation Support

    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.

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