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Chapter 7
1715 Redundant I/O System in SIL 2 Safety Applications
1715 I/O Modules in SIL 2
Safety Applications
202
IMPORTANT
For SIL 2 safety applications, you must have the following:
• Firmware, revision 2.001 or later, for the 1715-AENTR adapters
• Add-on Profile, version 2.01.014 or later, for the adapter and Add-
• Add-On Instructions, version 2.001 or later, when using a
• 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 at rok.auto/certifications. See the TÜV
website at
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 are not SIL 2
certified from the start of the online edits to the completion of
the validation of the changes.
1715 I/O modules, firmware revision 2.001 and later
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
8, for information about Add-On Instructions for SIL 2 1715 I/O
module applications
•
Appendix
D, for PFD and PFH calculations.
•
Appendix
E, for a SIL 2 application checklist.
•
Using ControlLogix controllers in SIL 2 Applications Safety Reference
Manual, publication 1756-RM001, for detailed requirements for
installing, programming, and operating a SIL 2 ControlLogix-based
safety system.
•
For specifications and certifications relating to a 1715 Redundant I/O
system, refer to the 1715 Redundant I/O System Technical Specifications,
publication 1715-TD001.
These 1715 devices can be included in a SIL 2 system.
(a) See the Module Revision Release List available from the Product Certifications link on at rok.auto/certifications.
Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
on Profile, version 3.01.014 or later, for the I/O modules
ControlLogix system
http://www.tuvasi.com
for SIL 2 certification listings.
(a)
, can be used in safety
- Quick Links:
- 1715-Aentr Adapters
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