<Appendix 4. Link Master Functions>
268
IM 01E21A02-03EN
To set up this product as a device that is capable of backing up the LAS, follow the procedures
(1), (2) and (3) below.
Note: When changing the settings of this product, add this product to the link where an LAS is
running. After making changes to the settings, do not turn off the power to this product for
at least 30 seconds.
(1) Set the node address of this product. In general, set an address from 0x14 to [V(FUN) - 1]
for the LM device.
Not used
LM device
Not used
Basic device
Default address
Portable-device address
V (FUN)
V (FUN) + V (NUN)
V (NUN)
0xFF
0xFC
0xFB
0xF8
0xF7
0x00
FA0403.EPS
0x0F
0x10
0x13
0x14
Bridge device
Figure A4.3 Node Address Ranges
(2) In the LAS settings of this product, set the values of V(ST), V(MRD), and V(MID) to the
lowest capability values in all the devices on the link.
(Ex.) <Check of capacity value of each device>
DlmeBasicInfo (Index 374(SM))
Subindex
Element
This
Device Device 1 Device 2 Device 3
Description
1
SlotTime
4
8
10
20
Capability value for V (ST)
3
MaxResponse
Delay
3
6
3
5
Capability value for V (MRD)
6
MinInterPdu
Delay
4
8
12
10
Capability value for V (MID)
In the above case, the settings for this product should be as follows.
ConfiguredLinkSettingsRecord (Index 385(SM))
Subindex
Element
Setting Value
(Default Value) Description
1
SlotTime
20(4095)
V (ST)
3
MaxResponseDelay
6( 5)
V (MRD)
6
MinInterPduDelay
12( 12)
V (MID)
(3) Set the values of LAS setting V(FUN) and V(NUN) of this product so that they include the
node addresses of all devices on the link. (See Figure A4.3.)
ConfiguredLinkSettingsRecord (Index 385(SM))
Subindex
Element
Default Value Description
4
FirstUnpolledNodeId
0x25
V (FUN)
7
NumConsecUnpolledNodeId
0xBA
V (NUN)