ABB REL650 - Optical Budget Calculation for Serial Communication with LON

Table 12: ADE Non group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation
TimerClass Slow
Normal
Fast
-
- Slow Timer class
LON commands are available on the local HMI under Main menu/Configuration/
Communication/Station communication/Port configuration/SLM optical LON
pot/Service Pin Messae/Generate service pin message
Table 13: LON commands
Command Command description
ServPinMess Command with confirmation. Transfers the node address to the LON Network
Tool.
7.2 Optical budget calculation for serial communication
with LON
M11737-4 v2
Table 14: Example
Distance 1 km
Glass
Distance10 m
Plastic
Maximum attenuation -11 dB - 7 dB
4 dB/km multi mode: 820 nm - 62.5/125 um 4 dB -
0.3 dB/m plastic: 620 nm - 1mm - 3 dB
Margins for installation, aging, and so on 5 dB 2 dB
Losses in connection box, two contacts (0.75 dB/contact) 1.5 dB -
Losses in connection box, two contacts (1dB/contact) - 2 dB
Margin for repair splices (0.5 dB/splice) 0.5 dB -
Maximum total attenuation 11 dB 7 dB
Section 7 1MRK 506 383-UEN A
Establishing connection and verifying the LON communication
56 Line distance protection REL650 2.2 IEC
Commissioning manual