GE EPM 9650/9800 manual Digital Output Snapshot Log Format, Digital Output Snapshot Data Pointers

6.12: Digital Output Snapshot Log Format

Digital Output Snapshot Log: The Digital Output Snapshot 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).

Profile Information is in the Programmable Settings Block.

Digital Output Snapshot Record Size: (45463)

This Register is an enumeration for the size of a record in the Digital Output Snapshot 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

Digital Output Snapshot Data Pointers: (45205-45332)

These Registers indicate which information to include in a record in the Digital Output Snapshot 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 points for the line are ignored.

Record Format: A Record contains as many bytes as specified by the Digital Output Snapshot Record Size Field in the Programmable Settings Block (45463).

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