1794-ACNR15/AB Redundant Media ControlNet Adapter

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Brand Name                 AB

Product reference      1794-ACNR15

FLEX I/O ControlNet Adapter Modules Cat. No. 1794-ACN15, 1794-ACN15K, 1794-ACNR15, 1794-ACNR15XT, Series D (1794-ACN15K and 1794-ACNR15XT are conformally coated to meet noxious gas requirements of ISA/ANSI-71.040 1985 Class G3 Environment.) 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

Mount on a DIN Rail 1. Position the ControlNet adapter module (A) on an IEC standard (35 x 7.5 x 1 mm) top-hat DIN rail, Allen-Bradley part number 199-DR1; 46277-3; EN50022 (B), at a slight angle. 2. Hook the lip on the rear of the adapter onto the top of the DIN rail, and rotate the adapter module onto the rail. 3. Press the adapter module down onto the DIN rail until flush. Locking tab C snaps the adapter into position and locks it onto the DIN rail. 4. If the adapter module does not lock in place, use a screwdriver or similar device to move the locking tab down while pressing the adapter module flush onto the DIN rail, and release the locking tab to lock the adapter module in place. If necessary, push up on the locking tab to lock. 5. Connect the adapter wiring as shown in the section, Connecting Wiring. Mount on a Panel or Wall If mounting this adapter to a panel or wall, refer to publication 1794-2.13, Panel Mounting Kit, Cat. No. 1794-NM1. Mount or Replace the Adapter on an Existing System 1. Disconnect any wiring jumpered to the adjacent terminal base.

2. Disconnect the BNC connector(s) from the front of the adapter. 3. Open the module latching mechanism and remove the module from the base unit to which the adapter will be attached. 4. Push the FlexBus connector toward the right side of the terminal base to unplug the backplane connection. 5. Release the locking tab and remove the adapter module. 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 the adapter tight together, reducing the possibility of a break in communication over the backplane. 6. Complete the adapter mounting as shown below. Push down and in at the same time to lock the adapter to the DIN rail. If the adapter does not lock in place, use a screwdriver or similar device to move the locking tab down while pressing the adapter flush onto the DIN rail, and release the locking tab to lock the adapter module in place. If necessary, push up on the locking tab to lock. 

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