GE EPM 9650/9800 manual Class Assignments for Counter Change Event Bit

The meter has an 8-byte Binary Counter Value while DNP can only give a 4-byte value. By using this scaling, the user can get the proper range of data. The scaling value represents the power of 10.

•Delta Values: 4-byte unsigned integer

If the Current Binary Counter value is different from the Previous value more than Delta values, the Counter Change Event value will be generated if it is assigned to a Class.

•Class assignments (Currently bits 5,4,3,2,1 and 0 are used): 8-bit bitmap

When bit 5 is set, the Counter Change Event value will not be generated.

When bit 5 is clear, bit 4 and bit 3 will assign the Counter Change Event value to a Class.

Class Assignments for Counter Change Event

Bit 5	Bit 4	Bit 3	Class Assignment
0	0	0	No Class
0	0	1	Class 1
0	1	0	Class 2
0	1	1	Class 3
1	X	X	No Class
1	X	X	No Class
1	X	X	No Class
1	X	X	No Class

When bit 2 is set, the Frozen Counter Event value will not be generated.

When bit 2 is clear, bit 1 and bit 0 will assign the Frozen Counter Event value to a Class.

Class Assignments for Frozen Counter Events

Bit 2	Bit 1	Bit 0	Class Assigned
0	0	0	No Class
0	0	1	Class 1
0	1	0	Class 2
0	1	1	Class 3
1	X	X	No Class
1	X	X	No Class
1	X	X	No Class
1	X	X	No Class

•Reserved: 7 bytes. Reserved for future use.

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