A4.4 Lm Functions; A4.4.1; Lm Function List - YOKOGAWA Admag TI Series User Manual

A4.4 LM Functions

A4.4.1

LM Function List

No. Function Name
1 LM initialization function
StartUp of other nodes
2 (PN and Node Activation
SPDU transmissions)
PT transmission
processing
3
(including FinalBit
processing)
CD transmission
4
function
Time synchronization
5
function
DomainDownload
6
Server
7 Live list equalization
8 LAS transfer function
Reading/writing function
9
of LM-related NMIB
Round Trip Delay
10 Reply (RR)
DLPDU reply function
11 Long Address
<Appendix 4. Link Master Functions>
Among LM devices, at startup, the device with the smallest [V(ST) x
V(TN)] value becomes the LAS.
At all times, each LM device is monitoring whether or not the BUS line is
in a no-signal state.
Transmits a PN (Probe Node).
Sends Node Activation SPDU to the device which returns a new PR
(Probe Response) message.
Passes a PT (Pass Token) message to devices included in the live list
sequentially. 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).
Sets the schedule information. The schedule information can be
equalized only when the Domain Download command is carried out from
outside the LM in question. (The version information of the schedule is
usually monitored, but no action is taken even when it is different.)
Transmits SPDU messages to the LM device to equalize live lists.
Function to transfer the right of being the LAS to another LM device.
See Section A4.5.
Not yet supported in the current version.
Not yet supported in the current version.
Function
269
IM 01E21A02-03EN