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Publication 1794-RM001G-EN-P - December 2011
Chapter
3
FLEX I/O Modules
This chapter discusses the FLEX I/O modules that are SIL2 certified.
Overview of FLEX I/O
Modules
In the most basic description, there are two types of SIL2-certified FLEX I/O
modules:
•
Digital I/O modules
•
Analog I/O modules
With each type, however, there are differences between specific modules.
Because the differences propagate to varying levels in each module type, a
graphical representation can best provide an overview of the many
SIL2-certified FLEX I/O modules.
FLEX I/O modules are designed with inherent features that assist them in
complying with the requirements of the 61508 Standard. For example, the
modules all have a common backplane interface, execute power-up and
runtime diagnostics, and offer electronic keying.
Table 1.1 lists the FLEX I/O modules initially submitted for SIL2
certification.
For information about:
See page:
Wiring FLEX I/O Digital Input Modules
General Considerations when using Any FLEX
I/O Digital Output Module
Wiring FLEX I/O Digital Output Modules
Summary of Contents for FlexLogix 1794
Page 1: ...FLEXI OSystemwithControlLogixforSIL2 Catalog Number Bulletin 1794 Reference Manual AB Drives ...
Page 18: ...Publication 1794 RM001G EN P December 2011 1 14 SIL Policy Notes ...
Page 22: ...Publication 1794 RM001G EN P December 2011 2 4 ControlLogix Communications ...
Page 42: ...Publication 1794 RM001G EN P December 2011 3 20 FLEX I O Modules Notes ...
Page 56: ...Publication 1794 RM001G EN P December 2011 A 10 Failure Estimates Notes ...
Page 59: ...AB Drives ...