Lm Functions; Configuredlinksettingsrecord (Yvp Index 369 (Sm)) Example - GE FVP110 Maintenance Manual

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Figure 80 ConfiguredLinkSettingsRecord (YVP Index 369 (SM)) Example
3. Set the FVP LAS settings for the values of V(FUN) and V(NUN) so that they include
the node addresses of all nodes within the same segment (Figure 81).
Figure 81 ConfiguredLinkSettingsRecord (YVP Index 369 (SM)) Example

LM Functions

No.
LM initialization
1
Startup of other nodes (PN
2
and Node Activation SPDU
transmissions)
PT transmission (including
3
final bit monitoring)
CD transmission
4
Time synchronization
5
Table 71 LM Functions
Function
When a fieldbus segment starts, the LM with the smallest
[V(ST) × V(TN)] value within the segment becomes the LAS.
At all times, each LM is checking whether or not a carrier is on
the segment.
Transmits a PN (Probe Node) message, and Node Activation
SPDU message to devices which return a new PR (Probe
Response) message.
Passes a PT (Pass Token) message to devices included in the
live list sequentially, and monitors the RT (Return Token) and
final bit returned in reply to the PT.
Transmits a CD (Compel Data) message at the scheduled
times.
Supports periodic TD (Time Distribution) transmissions and
transmissions of a reply to a CT (Compel Time).
FVP 110 Fieldbus Valve Positioner Manual
Description
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