4.6.2 Freeze/Unfreeze
Freeze/unfreeze can be used for simultaneous reading of
process data, for example output current, from several
slaves.
A freeze command freezes the actual values and upon
request the slave sends back the value that was present
when the freeze command was received.
At the receipt of an unfreeze command, the values once
again are continuously updated and the slave returns a
present value, for example a value generated by current
conditions.
The values are updated when a new freeze or unfreeze
command is received.
Control
VLT
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