Siemens Simatic S7-300, Инструкция по установке и эксплуатации

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Glossary
Fail-safe signal modules
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Installation and Operating Manual, 01/2010, A5E00085586-10
PROFIsafe address
Each -> F-I/O is assigned a PROFIsafe address. You must configure the PROFIsafe address
in
STEP 7 HW Config and set it on the F-I/O using a switch.
PROFIsafe monitoring time
Monitoring time for safety-oriented communication between the F-CPU and F-I/O.
Proof-test interval
The faultless state of a component must be verified on expiration of this specific time, that is,
it must be replaced with an unused component unless proven faultless.
Redundancy, availability enhancing
Multiple instances of components with the focus set on maintaining component functionality
even in the event of hardware faults.
Redundancy, safety enhancing
Multiple availability of components with the focus set on exposing hardware faults based on
comparison; for example, → 1oo2 evaluation in → fail-safe signal modules.
Redundant switched I/O
Configuration variant of S7 FH Systems in → safety mode for enhancing availability. → F-
CPU, PROFIBUS DP, and → F-I/O are redundant. The F-I/O may no longer be available
when in error state.
Reintegration
After a fault has been eliminted, a reintegration (depassivation) of the → F-I/O is required.
The reintegration (changeover from fail-safe values to process values) occurs automatically
or, alternatively, after user acknowledgment in the safety program.
Following reintegration of an F-I/O with inputs, the process values pending at the fail-safe
inputs are provided to the → safety program again. In the case of an F-I/O with outputs, the →
F-system transfers the output values provided in the safety program to the fail-safe outputs
again.