YOKOGAWA ADMAG TI Series User Manual

<Appendix 4. Link Master Functions>
267
IM 01E21A02-03EN
A4.3 Transition of LM Function
There are the following procedures for an LM device to become the LAS:
(1) IftheLMdevicejudgesthatthereisnoLASonthelink,insuchacaseaswhenthelink
starts up or when the LAS fails*, the LM declares itself as the LAS, and then becomes the
LAS.*BackupforLAS(FigureA4.2)
(2) TheLMdevicerequeststheLASonthelinktotransfertherightofbeingtheLAS,andthen
becomes the LAS.
In either case, if there are multiple LM devices on the link, the LM device which has the smallest
V(ST)xV(TN)valuebecomestheLAS.
LM
Node address:
0x15
SlotTime = 5
LM
Node address:
0x16
SlotTime = 5
Node address: 0x14
SlotTime = 5
Basic device
Node address:
0xF1
Basic device
Node address:
0xF2
Basic device
Node address:
0xF3
Basic device
Node address:
0xF4
LAS
LAS
In the event that the current LAS in
this segment (node address 0x14)
fails, the LM with the address of 0x15
takes its place to become the LAS.
LM
FA0402.EPS
Figure A4.2 Backup of LM Function

YOKOGAWA ADMAG TI Series Specifications

General

Brand	YOKOGAWA
Model	ADMAG TI Series
Category	Measuring Instruments
Language	English