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4 Functional Mechanisms of this Application
4.3 Configuration explanations
4.3.3
DB20, MIB library
Chapter 4.3.2 described how the "OID number" was transferred in a readable form
for the FB3.
With regard to the application, the previously converted "OID number" is now
stored in the DB20.
The figure below shows an extract from the DB20 in the "Declaration view".
Figure 4-4
The DB20 consists of a field of data structures.
Each individual structure describes a MIB variable and consists of three elements:
Table 4-5
Name
Length
OID Name
(Can be any name.
In this case, the name of
the "MIB variables" was
used.
Evaluating An Access Point Clients List
V1.0, Entry ID: 48946495
Data type
Description
DWord
The FB3 accesses this ID number using the
"ObjectID" block parameter and calls the
specified "MIB variable" through it.
View of the ID:
DW#16#49440001
Note:
Maintain the specified "9444000x" format.
Byte
Length of the OID number.
Array[1..n]
Here the "revised" OID number is entered.
29
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