Protection Event Log

The system stores the events that concern the protection manager (trips, alarms) in the file number 20.

This file is made up of 100 records and each record is made up of nine registers.

The following table describes the file header content:

Address	Register	RW	X	Unit	Type	Range	A/E/P	Description
0x26AB	9900	RW	–	–	INT16U	–	P	File status: 0x0000 = file disabled 0xFFFF = file enabled (factory setting)
0x26AC	9901	R	–	–	INT16U	–	P	Type of file: 20 = protection event log
0x26AD	9902	R	1	–	INT16U	–	P	Size of a file = 100 records
0x26AE	9903	R	1	–	INT16U	–	P	Size of a record = 9 registers
0x26AF	9904	R	–	–	INT16U	1	P	File filling mode: 0 = circular

The following table describes the file status content:

Address	Register	RW	X	Unit	Type	Range	A/E/P	Description
0x26BB	9916	R	1	–	INT16U	–	P	Size of a file = 100 records
0x26BC	9917	R	1	–	INT16U	–	P	Size of a record = 9 registers
0x26BD	9918	R	1	–	INT16U	–	P	0x0000 = file OK 0x000A = record size smaller than expected 0x0014 = record size larger than expected 0x001E = insufficient memory 0x00FA = internal error 0x00FD = corrupted allocation table 0x00FE = configuration zero 0x00FF = invalid configuration 0xFC00 = invalid file number 0xFD00 = invalid record number 0xFE00 = file not supported 0xFF00 = cannot allocate file
0x26BE	9919	R	1	–	INT16U	0–100	P	Number of records in the file
0x26BF	9920	R	1	–	INT16U	0–8000	P	Sequence number of first record in the file (the oldest)
0x26C0	9921	R	1	–	INT16U	0–8000	P	Sequence number of last record in the file (the most recent)
0x26C1– 0x26C3	9922– 9924	R	–	–	DATE	–	P	Date the last file was reset. Factory setting = 0x8000 0x8000 0x8000

The following table shows the format of 1 record in the protection event log.

Registers	Type	Bits	Description
1–4	XDATE	–	Event date
5	INT16U	–	Event number: alarm code or trip code
6	INT16U	–	Event characteristics for protection event log ⁽¹⁾
7	INT16U	0–7	1 = event of the over type 2 = alarm of the under type 3 = alarm of the minimum type 4 = alarm of the maximum type 5 = alarm of the assorted type
		8–11	1 = start of an event 2 = end of an alarm
		12–15	Alarms 1100–1106 have a priority 3. For other alarms, the value contained in these 4 bits represents the priority linked to the event (if applicable and depending on the alarm configuration).
8	INT16U	–	Logging register associated to the alarm ⁽²⁾
9	INT16U	–	Action register associated to the alarm ⁽²⁾
(1) For event numbers 1000–1004, the data is the value of the fault current interrupted by the circuit breaker. For all other protection events, this value is forced to 32768. (2) Registers 8 and 9 are a copy of the alarm configuration registers at the moment the event occurred. These registers depend entirely on the user configurations. For the events 1100–1106, these registers are forced to 32768.