A4.5.2; Descriptions For Lm Parameters - YOKOGAWA Admag TI Series User Manual

A4.5.2

Descriptions for LM Parameters

The following describes LM parameters of this product.
Do not turn off the power to this product for 60 seconds after making a change to parameter
settings.
(1) DlmeLinkMasterCapabilitiesVariable
Bit Position
LAS Schedule in
B3: 0x04
Non-volatile Memory
Last Values Record
B2: 0x02
Supported
Link Master Statistics
B1: 0x01
Record Supported
(2) DlmeLinkMasterInfoRecord
Sub-index
1 MaxSchedulingOverhead
2 DefMinTokenDelegTime
3 DefTokenHoldTime
4 TargetTokenRotTime
5 LinkMaintTokHoldTime
6 TimeDistributionPeriod
7 MaximumInactivityToClaimLasDelay
8 LasDatabaseStatusSpduDistributionPeriod
(3) PrimaryLinkMasterFlagVariable
Variable which explicitly declares the LAS. Writing "TRUE" (0xFF) to this parameter in a
device causes that device to attempt to become the LAS. The 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 is true.
(4) LiveListStatusArrayVariable
The parameter is a variable of 32[B] and each bit represents the status of whether a device
is live (1) or not (0).
The leading bit corresponds to the device address 0x00, and the final bit to the device
address 0xFF.
For example, if there are device addresses 0x10 and 0x15 on the bus, the value is as
follows:
0x00 00 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00
Bit corresponds
Meaning
Indicates whether the LAS schedule can
(= 1) or cannot (= 0) be saved to the non-
volatile memory
Indicates whether to support (= 1) or not to
support (= 0) LastValuesRecord.
Indicates whether to support
(= 1) or not to support (= 0)
DlmeLinkMasterStatisticsRecord.
Element
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 ...
0x00
<Appendix 4. Link Master Functions>
Description
Size [B] Description
1 V(MSO)
2 V(DMDT)
2 V(DTHT)
2 V(TTRT)
2 V(LTHT)
4 V(TDP)
2 V(MICD)
2 V(LDDP)
0x10 0x15
272
Value
1
0
0
IM 01E21A02-03EN