GE EPM 9650/9800 manual Type F65 Scaled Energy Setting, Bit Meaning

3.65: Type F65 Scaled Energy Setting

Length: 1/2 a Register (1 byte)

Each register contains 2 bytes. Each byte contains settings for a base quantity. The format of a byte is as follows:

Bit	7	6	5	4	3	2	1	0
Meaning		Digits			Unit		Decimal Places

Digits is a 3-bit field, which is offset by 2 to represent from 2 to 9 displayable digits.

Unit is a 2-bit field, where the values from 0 to 2 represent units of Wh (100), k (103) and M (106). The value 3 is undefined and is treated the same as 2, signifying M (106).

Decimal Places is a 3-bit field, where the bits represent from 0 to 7 decimal places.

Examples:

For the following, the Q1234 VAh has a current value internally of 123,456,789.0123 VAh.

Register CA00H						Reading in Register
		Digits	Unit	D.P.	Pattern	1AFFH-1B00H		Display
Hex	Binary					Hex	Decimal
20xxH	001 00 000 3 digits		VAh, 100	0	xxx VAh	00000315H	789	789 VAh
8BxxH	100 01 011	6 digits	kVAh, 103	3	xxx.xxx kVAh 0006F855H		456789	456.789 kvAh
88xxH	100 01 000	6 digits	kVAh, 103	0	xxxxxx kVAh 0001E240H		123456	123,456 kVAh
93xxH	100 10 011	6 digits	MVAh, 106	3	xxx.xxx MVAh 0001E240H		123456	123.456 MVAh
72xxH	011 10 010	5 digits	MVAh, 106	2	xxx.xx MVAh 00003039H		12345	123.45 MVAh
C2xxH	110 00 010	8 digits	VAh, 100	2	xxxxxx.xx VAh 02B90135H		45678901	456,789.01 VAh

The Scaled Energy Programmable Setting can be accessed by clicking:

Device Profile > Revenue & Energy Settings > Energy Scaling.

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