Pilz PSSnet SHL 8T MRP - Manual (Page 195)

General information
196
B.1 Management Information Base
(MIB)
PSSnet SHL - Basic Configuration
Pilz GmbH & Co. KG, Felix- Wankel Str. 2, 73760 Ostfildern
B.1 Management Information
Base (MIB)
The Management Information Base (MIB) is designed in the form of an ab-
stract tree structure.
The branching points are the object classes. The "leaves" of the MIB are
called generic object classes.
If this is required for unique identification, the generic object classes are in-
stantiated, i.e. the abstract structure is mapped onto reality, by specifying the
port or the source address.
Values (integers, time ticks, counters or octet strings) are assigned to these
instances; these values can be read and, in some cases, modified. The ob-
ject description or object ID (OID) identifies the object class. The subidentifier
(SID) is used to instantiate them.
Example:
The generic object class
hmPSState (OID = 1.3.6.1.4.1.248.14.1.2.1.3)
is the description of the abstract information "power supply status". However,
it is not possible to read any information from this, as the system does not
know which power supply is meant.
Specifying the subidentifier (2) maps this abstract information onto reality (in-
stantiates it), thus indicating the operating status of power supply 2. A value
is assigned to this instance and can then be read. The instance "get
1.3.6.1.4.1.248.14.1.2.1.3.2" returns the response "1", which
means that the power supply is ready for operation.