Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
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Analog modules
9
9.1
Introduction
In this chapter
Two fail-safe, redundancy-capable analog modules of the S7-300 module line are available
for connecting analog sensors/encoders:
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the SM 336; AI 6 x 13Bit,
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the SM 336; F-AI 6 x 0/4 ... 20 mA HART.
Information on fail-safe analog modules provided in this chapter:
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Properties
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Module view and block diagram
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Applications, including the wiring diagrams and parameter settings
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Diagnostic messages, including corrective measures
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the HART messages (SM 336; F-AI 6 x 0/4 ... 20 mA HART only) and
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Technical data
WARNING
The fail-safe performance characteristics in the technical data apply to a module-dependent
proof-test interval and a mean time to repair of 100 hours.