Catalog Number 56AMXN/B

Important User Information  Because of the variety of uses for the products described in this publication, those  responsible for the application and use of this control equipment must satisfy  themselves that all necessary steps have been taken to assure that each application  and use meets all performance and safety requirements, including any applicable  laws, regulations, codes and standards.  The illustrations, charts, sample programs and layout examples shown in this guide  are intended solely for purposes of example. Since there are many variables and  requirements associated with any particular installation, Rockwell Automation does  not assume responsibility or liability (to include intellectual property liability) for  actual use based upon the examples shown in this publication.  Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application, Installation and  Maintenance of Solid-State Control (available from your local Rockwell Automation  office), describes some important differences between solid-state equipment and  electromechanical devices that should be taken into consideration when applying  products such as those described in this publication. Reproduction of the contents of  this copyrighted publication, in whole or part, without written permission of  Rockwell Automation, is prohibited.

Understand Compliance to European Union Directive  If this product bears the CE marking, it is approved for installation within the  European Union and EEA regions. It has been designed and tested to meet the  following directives.  EMC Directive  This product is tested to meet Council Directive 89/336/EEC Electromagnetic  Compatibility (EMC) and the following standards, in whole or in part, documented  in a technical construction file:  • EN 50081-2 EMC - Generic Emission Standard, Part 2 - Industrial Environment  • EN 50082-2 EMC - Generic Immunity Standard, Part 2 - Industrial Environment  This product is intended for use in an industrial environment.  Low Voltage Directive  This product is tested to meet Council Directive 73/23/EEC Low Voltage, by  applying the safety requirements of EN 61131-2 Programmable Controllers, Part 2 -  Equipment Requirements and Tests.  For specific information required by EN 61131-2, see the appropriate sections in this  publication, as well as the following Allen-Bradley publications:  • Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1  • Automation Systems Catalog, publication B113  Open style devices must be provided with environmental and safety protection by  proper mounting in enclosures designed for specific application conditions. See  NEMA Standards publication 250 and IEC publication 529, as applicable, for  explanations of the degrees of protection provided by different types of enclosure.

Set the Network Type and Node Address Switches  Before you install the module, you must set the network type, drop number and drop  depth using the switches at the top of the module.  The two switches at the left set the drop depth, the two at the right set the drop  number.  The following table shows how to set the switches for each mode of operation.

For example, to configure the 56AMXN/B as a DCS slave with drop number 17,  drop depth 5, set the switches to 0, 5, 1, and 7 from left to right.  Any other settings are invalid and result in the module going into “Thumbwheel  test” mode. In thumbwheel test mode, the display shows the current switch settings.  It doesn’t go out of thumbwheel test mode until you cycle power.  In thumbwheel test mode, the 56AMXN/B initially displays “Thumb Test Mode”  on the 4-character display, displays the switch settings for 5 seconds, then resumes  displaying “Thumb Test Mode”  For DCS slave operation, if the drop number and drop depth are individually valid  but the combination results in invalid drop numbers (for example, drop number 55,  drop depth 2), the module displays an error message on the 4-character display but  does not enter Thumbwheel test mode. 

Determine Module Slot Location The figure below 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 56AMXN/B modules in the same chassis. You can  install as many modules as your power supply can accommodate (i.e., number for  which the power supply is rated).

Installing or Removing the Module While Power Is Applied  Versions of the 56AMXN hardware prior to O-57677-1 do NOT support removal  and insertion under power.  The hardware version can be identified by looking for a sticker with the part number  O-57677-1 or above on the module’s printed circuit (near the serial number – you do  not need to disassemble the 56AMXN to find the sticker). Modules with no stickers  are hardware version O-57677 and do NOT support removal and insertion under  power  For hardware versions O-57677-1 and above, you can install or remove the module  while chassis power is applied if you observe the following precautions.  

Wire the Connector for the AutoMax Network  Use a drop cable, 612574-36R, available through Rockwell Automation Systems  Business, and passive tap M/N 57C380 to connect the module to the coaxial  network cable. This cable turns down and has a ferrite to reduce EMI. This cable  must be used in CE applications. You can also use drop cable 612403-036R but it  points up.  The drop cable is a 3-foot long multi-conductor cable with 9-pin D-shell connectors  at each end. Connect one end to the connector on the module and the other end to  the passive tap.  The passive tap has two BNC connectors for connection to the coaxial cables and  terminating loads.  The network coaxial cable must be terminated with 75 ohm terminating loads  attached to the taps at the physical ends of the network. There should be two and  only two terminators on the network.  For DCS, the network cable can be RG-59/U or RG-11/U. For remote I/O, the  cable must be RG-59/U.