Rockwell Automation 1715-OF8I Redundant I/O System User Manual User Manual
Page 233
Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
233
Using SIL 2 Add-On Instructions with 1715 Redundant I/O Modules
Chapter 7
9. Name the routine.
10. Select the appropriate Type.
Ladder or Function Block is recommended for SIL 2 safety functions.
11. Click OK.
IMPORTANT
Create as many SIL 2 programs and routines as required for the SIL 2 logic,
keeping in mind the goal is to have logic that is the following:
• Easy to understand
• Easy to trace
• Easy to change
• Easy to test
• Well-documented
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