3-6
3.7:
Type
F7
Secondary
Voltage,
Current,
VA,
VAR,
Watts,
Hz
or
Flicker
QLength: 2 Registers (4 bytes)
QRange: +32767 / -32768
QUnit: 1/65536 V, A, VA, VAR, Wor Hz
QThe registers together contain a four-byte signed (2's compliment) integer. Positive values have the
most significant bit clear, and have the same magnitude as an unsigned integer. Negative values
have the most significant bit set. The magnitude of a negative value is found by complimenting
(inverting) all of the bits and adding 1.
Example:
Registers 00153 – 00154, Tenth second Phase AVAR might contain the following data:
Register 00153 – 00154, Tenth second Phase AVAR, might contain the following data:
Address
Value
4-byte signed integer (Hex)
Most significant bit
Compliment
Increment
4-byte signed integer (Decimal)
1/65536 VAR secondary
00153 00154
FFFEH C000H
FFFEC000H
1
00013FFFH
00014000H
-81920
-1.25 VAR secondary
Address
Value
4-byte signed integer (Hex)
Most significant bit
4-byte integer (Decimal)
1/65536 VAR secondary
00153 00154
0001H 4000H
00014000H
0
+81920
+1.25 VAR secondary