The Allen Bradley Logix5000 family (ControlLogix, CompactLogix, FlexLogix, SoftLogix) has some very good manuals. If you are just starting out or need a refresher here are the key manuals and the order I would read them. If you have RSLogix 50000 installed then you will find some of these in the Help > Online Books menu. Revision 16 also has some great videos in the Learning Center.

Tags are the method for assigning and referencing memory locations in Allen Bradley Logix5000 controllers. No longer are there any physical addresses such as N7:0 or F8:7 which use symbols to describe them. These have been replaced with tags which are a pure text based addressing scheme. This is a departure from the more conventional ways of programming PLC’s, which includes Allen Bradley’s earlier line of PLC5 and SLC 500 controllers.

Everything you need to simulate inputs into an Allen Bradley CompactLogix 1769 digital input module.

Mount for Allen Bradley CompactLogix digital input modules. See kit for complete product.

• If you are have trouble downloading a project even though you have privileges, make sure that you have the project and that you are online with the controller.
• If you can't access routine source protection when security is enabled, ask your administrator to grant you "Routine: Modify Properties" to obtain access.
• If your system uses FactoryTalk Security with RSLogix5000 software, version 16, software users can log into and log off of RSLogix 5000 software.

• Comments in Structured Text are downloaded to the controller. This includes comments in Structured Text routines and embedded Structured Text in SFC routines.
• You can print RSLogix 5000 views by clicking on the view and then pressing Ctrl+P or choosing Print from the File menu.
• When you print FBD logic, the editor automatically makes the logic fit the page. A 2:1 ratio is generally readable. For example, set the FBD sheet size to 11 x 17 (B Size) and print on 81/2 x 11 size paper.

• Logix controllers are optimized for the DINT and REAL data types. Use these data types to avoid conversion overhead and optimize performance.
• You can optimize the communication performance of acquiring data from Logix controllers by consolidating multiple data values into a User-Defined Type (UDT) or array.
• Indexed references to array elements add additional scan time overhead to the application. Use single dimension arrays whenever possible.

• Reserve 20% or more of the controller's memory to accommodate communications and changes in future Logix controller firmware releases.
• Use rack optimized communication formats for digital I/O modules to minimize amount of controller memory and communications overhead associated with these modules.
• Use the CPS instruction to provide buffering of communications and I/O data to minimize impact of asynchronous data arrival.

• RSLogix 5000 integrated motion supports camming, gearing, single-axis, and multi-axis instructions in Ladder Diagram, Structured Text, and Structured Text embedded in Sequential Function Charts.
• Execute motion direct commands directly from the context menu for any configured motion axis. The motion direct commands let you control motion instruction execution without creating or adding logic. This can be useful when first commissioning an axis or drive.

• Module icons in the I/O Configuration folder change to indicate the module has faulted or the connection to the module has been interrupted.
• To remove a yellow triangle warning symbol, first check the connection status. If the status is "Connection is not scheduled", re-open the RSNetWorx software. Return to RSLogix 5000 software and the yellow triangle should be gone.