GE FVP110 - Specifications; Preparations for Software Downloading

FVP 110 Fieldbus Valve Positioner Manual
224
GE Energy
Descriptions for LM Parameters
The following describes LM parameters of a FVP.
CAUTION Do not turn off the power to the FVP immediately after setting.
When the parameters are saved to the EEPROM, the
redundant processing is executed for the improvement of
reliability. If the power is turned off within 60 seconds after
setting is made, the modified parameters are not saved and
the settings may return to the original value.
PrimaryLinkMasterFlagVariable
Explicitly declares the LAS. Writing true (0xFF) to this parameter in a device causes that
device to attempt to become the LAS. However, a request of writing true to this parameter
in a device is rejected if the value of the same parameter in any other device that has a
smaller node address within the same segment is true.
Table 73 DlmeLinkMasterCapabilitiesVariable
Bit
Position
Meaning Description Value
B3: 0x04 LAS Schedule in
Non-volatile Memory
Whether the LAS schedule can (= 1) or cannot
(= 0) be saved to the non-volatile memory
1
B2: 0x02 Last Values Record
Supported
Whether to support (= 1) or not to support (= 0)
LastValuesRecord.
0
B1: 0x01 Link Master Statistics
Record Supported
Whether to support (= 1) or not to support (= 0)
DlmeLinkMasterStatisticsRecord.
0
Table 74 DlmeLinkMasterInfoRecord
Subindex Element Description Size
[bytes]
1 MaxSchedulingOverhead V(MSO) 1
2 DefMinTokenDelegTime V(DMDT) 2
3 DefTokenHoldTime V(DTHT) 2
4 TargetTokenRotTime V(TTRT) 2
5 LinkMaintTokHoldTime V(LTHT) 2
6 TimeDistributionPeriod V(TDP) 4
7 MaximumInactivityToClaimLasDelay V(MICD) 2
8 LasDatabaseStatusSpduDistributionPeriod V(LDDP) 2