Distributed I/O system
292 System Manual, 12/2016, A5E03576849-AG
Type of → sensor evaluation – in the case of the 1oo1 evaluation, there → is one sensor with
a 1-channel connection to the F module.
Type of → sensor evaluation – in the case of 1oo2 evaluation , two input channels are
assigned one two-channel sensor or two one-channel sensors. The input signals are
compared internally for equivalence or nonequivalence.
During the acknowledgment time, the → F-I/O acknowledge the sign of life specified by the →
F-CPU. The acknowledgment time is included in the calculation of the → monitoring time and
→ response time of the overall fail-safe system.
Actuators are, for example, power relays or contactors for switching on load devices or load
devices themselves (e.g. directly controlled solenoid valves).
Programmable logic controller for the open-loop and closed-loop control of process
sequences of the process engineering industry and manufacturing technology. The
automation system consists of different components and integrated system functions
depending on the automation task.
Self-assembling bus, can be used individually, for example, as a protective conductor bus or
for additional required voltage.
Availability is the probability that a system is functional at a specific point in time. Availability
can be increased by redundancy, e.g., by using multiple -> sensors at thesame measuring
point.
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