Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 12)

12 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Preface
For detailed information about GuardLogix safety controllers, see the following
publications.
Standard ControlLogix Controllers
Two lines of standard ControlLogix controllers are now available. These
controllers are identified as 1756-L6
x controllers and 1756-L7x controllers
according to abbreviations of their full catalog numbers.
The standard ControlLogix controllers share many similar features, but also have
some differences. Table 2 provides a brief overview the differences between the
controllers. For further details about these features and differences, see the
appropriate chapters of this manual.
For information on using ControlLogix controllers in SIL 2 applications, see the
Using ControlLogix in SIL 2 Applications Safety Reference Manual, publication
1756-RM001 .
Resource Description
GuardLogix 5570 Controllers User Manual, publication
1756-UM022
Provides information on how to install, configure, and
operate GuardLogix 5570 controllers in Studio 5000,
version 21 or later projects.
GuardLogix 5570 Controller System Safety Reference
Manual, publication
1756-RM099
Provides information on how to meet safety application
requirements for GuardLogix 5570 controllers in Studio
5000, version 21 or later projects.
GuardLogix Controllers User Manual, publication
1756-UM020
Provides information on how to install, configure, and
operate GuardLogix 5560 and GuardLogix 5570 controllers
in RSLogix 5000, version 20 or earlier projects.
GuardLogix Controller Systems Safety Reference Manual,
publication
1756-RM093
Provides information on how to meet safety application
requirements for GuardLogix 5560 and GuardLogix 5570
controllers in RSLogix 5000, version 20 or earlier projects.
GuardLogix Safety Application Instruction Set Safety
Reference Manual, publication
1756-RM095
Provides programmers with details about the GuardLogix
safety application instruction set.
Table 1 - ControlLogix Catalog Numbers
Abbreviated Cat. No. Cat. No.
1756-L6x 1756-L61, 1756-L62,1756-L63, 1756-L64,1756-L65
1756-L7x 1756-L71, 1756-L72, 1756-L73,1756-L74, 1756-L75
Table 2 - Differences between 1756-L7x and 1756-L6x Controllers
Feature 1756-L7x 1756-L6x
Clock support and backup used for
memory retention at powerdown Energy Storage Module (ESM) Battery
Communication ports (built-in) USB Serial
Connections, controller 500 250
Memory, nonvolatile Secure Digital (SD) card CompactFlash card
Status display and status indicators Scrolling status display and four
status indicators Six status indicators
Unconnected buffer defaults 20 (40, max) 10 (40, max)