Access From The Display; Signallings - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Access from the display With the modules energized and Local Bus enabled, the modules can be viewed on the display.

Signallings

C B
227 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
To enable the Local Bus, you need to select "On" in the menu Settings - Modules - Local Bus.
The following table shows the path from the display for accessing information on the modules:
Protection Unit
Circuit-breaker
About
Modules
Power Controller
Information that can be displayed on the modules:
• The serial number and the software version.
• The MAC address, assigned by ABB and with an OUI equal to ac:d3:64 (Organizationally Unique Identifier,
formed of the first three bytes of a MAC address; the OUI uniquely identifies the manufacturer of an
Ethernet device).
The following table shows the possible signals, and their meaning:
Pos. Description
Power LED, green. The possible states are:
• Off: power supply absent.
• On fixed: power supply and communication with the trip unit present (with a trip unit with
the Alive LED option disabled).
• On, with one flash per second (synchronized with that of the green LED on the trip unit):
A
power supply and communication with trip unit present (with a trip unit with the Alive LED
option enabled).
• On, with two quick flashes per second (not synchronized with those of the green LED on
the trip unit): power supply present, and communication with trip unit absent (for example:
because of Local Bus disabled).
Link LED, green. The possible states are:
B • Off: connection error (signal absent).
• On fixed: correct connection.
A
Activity LED, yellow. The possible states are:
C • Off: no activity on the line.
• On flashing: activity on the line (in reception and/or transmission).
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