GE EPM 9650/9800 Historical Log 1 Format, Historical Log 1 Record Size, Size Format Description

Digital Input Snapshot Log: The Digital Input Log will fill to the total allocated memory. The number of records possible in the Digital Input Log is the total memory allocated divided by the record size (size of a Digital Input Snapshot).

Digital Output Log: The Digital Output Snapshot Log stores records in order to document the stages used when changing states of Digital Outputs.

Digital Output Snapshot Log: The Digital Output Log will fill to the total allocated memory. The number of records possible in the Digital Output Log is the total memory allocated divided by the record size (size of a Digital Output Snapshot).

Flicker Log: The Flicker Log stores records to document Short Term and Long Term Flicker.

System Event Log: The Systerm Event Log will record the system changes made into the meter. Password changes, Power Reset and Programmable Setting changes are recorded in this log.

6.2: Historical Log 1 Format

Profile Information is in the Programmable Settings Block

Historical Log 1: Historical Log 1 will fill to the total allocated memory. The number of records possible in Historical Log 1 is the total memory allocated divided by the record size (size of a Historical Log 1 snapshot).

Historical Log 1 Record Size: (45463)

This Register is an enumeration for the size of a record in the Historical Log. The valid values are: 0x00000 = 32 byte records

0x00001 = 64 byte records

0x00002 = 128 byte records

0x00003 = 256 byte records

0x00004 = 16 byte records

Historical Log 1 Data Pointers: (45205-45332)

These Registers indicate which information to include in a record in the Historical Log. Each Data Pointer has the following 4 (four) byte structure:

Size	Format	Description
2 byte	unsigned int	Line Number
1 byte	unsigned char	Point number
1 byte	unsigned char	Reserved

A Line Number is an index into the Communication Table. Example - Line Number 11 is for the 12th line in the Communication Table, 0.1 second Phase-to-Neutral Voltages. Data Pointers with Line Numbers greater than the number of lines in the table are ignored.

A Point Number is an index into the Communication Table.

Example: Point Number 1 is for the second entry in a Line. Line Number 11, Point Number 1 is the second in the twelfth line, 0.1 second VBN. Data Pointers with Point Numbers greater than the number of

6-2