Flowserve 400MD Logix - Manual (Page 69)

Object Description OD Index Default Value
VERSION_OF_SCHEDULE The version number of the function block schedule. 275 0
FBScheduleEntry#1 Default setting is the AO block 276
START_TIME_OFFSET
-0FB_OBJECT_INDEX-257
VFD_REF-1
FBScheduleEntry#2 Default setting in the PID block 277
START_TIME_OFFSET-16000
FB_OBJECT_INDEX-310
VFD_REF-1
FBScheduleEntry#3 278 0xFFFFFFFF
FBScheduleEntry#4 Available 279 0
8.23 Network Management
Network management provides for the management of a device’s communication system by an external network manager application.
Network management operates on special objects in the Network Management Information Base (NMIB) which is part of the Management Virtual Field
Device (VFD).
Network Management Features
Network Management provides the following features:
Loading a Virtual Communication Relationship (VCR), which may be a list or a single entry. See VCR list objects.
• Loading/changing the communication stack configuration
• Loading the Link Active Schedule (LAS)
• Performance monitoring
Network Management Objects
CAUTION: Normally most of the network management objects appear transparent to the user. In other words, the parameters and
objects used for network management are not normally viewed or changed as part of device configuration.
The network management objects in the Logix 3400MD digital positioner FBAP are listed in the following paragraphs, although most, (if not
all) of these objects are not directly user-configured.
Network Management Information Base (NMIB)
The NMIB contains various objects that are associated with network management operation. Table 8.28 lists the NMIB object dictionary. The groups of
network management objects (along with their index starting numbers) are included in the NMIB for the Logix 3400MD digital positioner. The numbers in
parenthesis indicate the number of objects.
Virtual Communications Reference (VCR) Objects
The objects listed above contain parameters which define network management operations. These operations include communications between applica-
tions in different field devices (or field devices and operator interface). In order for this communication to take place, a communications relationship must be
set up using the network management objects and parameters. The parameters for this communication relationship are stored in a Virtual Communications
Reference (VCR) object.
VCR Attributes
The attributes for the VCR types (VCR name) defined in the Logix 3400MD digital positioner device are standard fieldbus attributes. There are
16 available VCR‘s available in the Logix 3400MD. For detailed descriptions of these attributes, see
Logix 3400MD Digital Positioner LGENIM3405-02 11/13
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