ABB RED650 Technical Manual page 709

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1MRK 505 394-UEN A

Line differential protection RED650 2.2 IEC

Technical manual

Event function EVENT

The Event function (EVENT) sends time-tagged events to the station level (for

example, operator workplace) over the station bus. On the station level, events are

presented in an event list. Events can be created from both internal logical signals

and binary input channels. All the internal signals are time tagged in the main

processing module, while the binary input channels are time tagged directly on

each I/O module. Events are produced according to a set of event masks. These

masks are treated commonly for both LON and SPA channels.

Two special signals for event registration purposes are available in the IED:

Terminal Restarted (0E50) and Event buffer overflow (0E51).

The status and event codes for the EVENT function are found in Table 498.

Status and event codes

These values are only applicable if the event mask is masked ≠ OFF.

Connection of signals as events

Signals coming from different protection and control functions and sent as events

to the station level over the SPA-bus (or LON-bus), are connected to the EVENT

function block as specified in Figure 335.

Station communication

Single indication

Double indication

M11880-82 v6

Closed 10 Open 01 Undefined

M11880-311 v5

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Relion 650 series