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REJ 513
User’s Guide
ABB Substation Automation
Products and Systems
1MRS750613-MUM
38
The following serial communication parameters shall be used for RS-232C:
•
Number of data bits
7
•
Number of stop bits
1
•
Parity
even
•
Baud rate
9.6 kbps as default
Relay data, such as events, setting values, all input and recorded data, can be read via
the optical PC-interface.
When setting values are altered via the optical PC-interface, the relay checks that the
entered parameter values are within the permitted setting range. The relay refuses to
accept too high or too low a setting value and keeps the former setting unchanged.
2.1.7.2 Event
codes
Special codes have been determined to represent certain events, such as start and
operation of protection stages and different states of output signals. The event codes
can be read via serial communication.
Events E1...E51 are stored in the event register of the relay. Under normal conditions
the register is empty. The maximum capacity of the register is 60 events.
The content of the register can be read with L command 5 events at a time. Using the
L command erases the read events from the register. Should a fault occur, for example
in data communication, these events can be re-read with B command. If needed, the B
command can also be repeated.
Events to be included in event reporting are marked with a multiplier 1. The event
mask is formed by the sum of the weighting factors of all those events that are to be
included in event reporting.
Table 2.1.7.2-1 Event masks
Event mask
Code
Setting range
Default setting
V155
E1...E8
0...255
85
V156
E9...E16
0...255
3
V157
E31
0 or 1
1
Содержание REJ 513
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