Sil 2 safety application requirements, 1715 i/o modules in sil 2 safety applications – Rockwell Automation 1715-OF8I Redundant I/O System User Manual User Manual
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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:
•
, for information about Add-On
Instructions for SIL 2 1715 I/O module applications
•
Appendix E,
starting on page
, for PFD and PFH calculations
•
Appendix F,
starting on page
, 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
See the TÜV website at
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 Certifica