Recorded Data; Serial Communication; Communication Port - ABB REJ 513 User Manual

ABB Substation Automation
Products and Systems
2.1.6
2.1.7
2.1.7.1
1MRS750613-MUM
User's Guide

Recorded data

Table 2.1.6-1 Recorded data
REGISTER Recorded data
EVENT1 Currents measured on L1, L2 and L3 as multiples of the rated
current I
expressed as a percentage of the set operate time or, at IDMT
mode of operation, of the calculated operate time. Time stamp for
the event; date and time.
The registers are updated when one of the overcurrent stages I> or
I>> starts or operates. Then the previous recorded values are
pushed forward one step in the event register stack while the
oldest values are lost. The last five recorded events are memorized
so that the most recent values are stored in register EVENT 1 and
the other four recorded values in registers EVENT 2...EVENT 5.
When the relay starts, but does not operate, the relay memorizes
the maximum currents measured on L1, L2 and L3 during the start
situation.
When one of the stages operates, the values of the currents
measured at the moment of operation are recorded, and the
duration reading (t> or t>>) for the stage that has operated is
100%.
EVENT 2 The operation principle is the same as that of EVENT 1.
EVENT 3 The operation principle is the same as that of EVENT 1.
EVENT 4 The operation principle is the same as that of EVENT 1.
EVENT 5 The operation principle is the same as that of EVENT 1.

Serial communication

Communication port

The relay has an optical PC-connection on the front panel. Via this connector the
relay is connected to a PC used for setting. The front interface uses SPA-bus protocol.
The optical PC-connector isolates the PC from the relay galvanically. The connection
consists of a transmitter stage and a receiver stage. The front connector is
standardized for ABB relay products and requires a specific opto-cable (ABB art. no
1MKC950001-1). The cable is connected to the serial RS-232C port of the PC. The
optical stage of the cable is powered by RS-232C control signals. The cable works
correctly with baud rates 4.8 and 9.6 kbps.
. Duration of the latest start situation of stages t> and t>>,
n
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