W&T 57630, Руководство пользователя

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W&T
Safety Timeout / State
Subject to errors and modifications:
6.2 Safety Timeout / State - Access monitoring
Components that communicate with each other over a network
must rely on a functioning network infrastructure. Even though
today‘s networks offer a high degree of transmission security,
problems can never be entirely precluded.
To ensure predictable behavior of the Web-IO when there is a
network disturbance, a
Safety Timeout is provided. The associated
watchdog monitors whether there has been a network access to
the Web-IO within a configurable interval of time.The watchdog
timer is reset each time there is a network access and plces the
outputs in the configurable state when the set
Safety Timeout
time has been reached.
6.2.1 Specifying safety timeout
To configure the safety timeout, select in the navigation tree Config
>> Device >> Output Mode:
m
Required access rights: Administrator
Safety Timeout
Enter here the time that should elapse before the absence of a
network access causes the outputs to be set to the set pattern.