Manual

4-36 SECS Message Detail
4.47 S2F47 - Variable Limit Attribute Request
S2F47 W * H -> E
<L
<U4 VID> * Requested Variable ID
...
>.
The Host sends this message to the Equipment to request the limits attributes for
specific variables. The Host may request the limits attributes for all defined
variables with the following message.
S2F47 W * H -> E
<L> .
In response to this message, the Equipment reports all limits attributes for all
variables. If a variable is eligible for limits monitoring, but does not have any limits
defined, it is not reported.