User Manual Owner manual

202 Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
Chapter 6 1715 Redundant I/O System in SIL 2 Safety Applications
SIL 2 Safety Application
Requirements
To use the 1715 Redundant I/O system in SIL 2 safety applications, you must
have revision 2.001 or later, of the adapter firmware, the latest Add-on Profiles
and the 1715 SIL 2 Add-On Instructions.
1715 I/O Modules in SIL 2
Safety Applications
1715 I/O modules, firmware revision 2.001 and later
(1)
, can be used in safety
applications up to and including SIL 2. Your system can be configured with any
combination of I/O modules, and in either Simplex or Duplex mode.
Two new tabs have been added to the Module Properties dialog box to configure
modules for use in SIL 2 Safety applications:
• The SIL 2 Safety tab lets you configure the RPI, connection reaction time
limit, access diagnostic data, and perform a SIL 2 reset, if necessary
• The Input States When CRTL Expires tab lets you define the safe state for
inputs
For more information on SIL 2 application requirements for 1715 I/O modules,
see these resources:
• Chapter 7,
starting on page 223, for information about Add-On
Instructions for SIL 2 1715 I/O module applications
• Appendix E,
starting on page 289, for PFD and PFH calculations
• Appendix F,
starting on page 303, for a SIL 2 application checklist
IMPORTANT
For SIL 2 safety applications, you must have the following:
• Firmware, revision 2.001 or later, for the 1715-AENTR adapter modules
• Add-on Profile, version 2.01.014 or later, for the adapter and Add-on
Profile, version 3.01.014 or later, for the I/O modules
• Add-On Instructions, version 2.001 or later, when using a ControlLogix
system
• A 1756-L7 ControlLogix controller
ATTENTION: ControlLogix L7 controllers are certified in RSLogix 5000 version
20 or later for SIL 2 operations. See the latest certifications for software and
firmware at http://www.rockwellautomation.com/rockwellautomation/
certification/overview.page. See the TÜV website at http://www.tuvasi.com for
SIL 2 certification listings.
IMPORTANT
Listen Only is not supported for SIL 2 operations. Only one 1756-L7 Logix
controller can connect to any I/O module within the 1715 rack for SIL 2 safety
functions.
IMPORTANT
Safety functions that are being edited online will not be SIL 2 certified from the
start of the online edits to the completion of the validation of the changes.
(1) See the Module Revision Release List available from the Product Certifications link on http://www.ab.com.