Yokogawa PR300 Power and Energy Meter - Manual (Page 50)

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>
3-27
IM 77C01E01-10E
3.6.2 Regenerative Energy
[Procedure]
(1) Write a regenerative energy value to the two D registers in the table below. The data
type is integer.
(2) After writing that value, write 1 to the writing status register, D0376.
D Register
D0374
Reference No.
40374
H No.
0175
Description
Regenerative energy-setpoint
(lower 2 bytes)
Effective Range
Refer to the "NOTE" below.
D0375 40375 0176
Regenerative energy-setpoint
(upper 2 bytes)
D0376 40376 0177
Regenerative energy writig
status If other than 1: Invalid
If 1: Writing is executed
[Example]
To set the regenerative energy value to 10,000,000 kWh:
For station number 01, use PC link communication (without checksum) and the random
write command as shown below:
If 10,000,000 is converted into a hexadecimal value, the value is 0098 9680. Then the
order of the upper two bytes and the lower two bytes is reversed
⇒ 9680 0098.
[Command]
[STX] 01010WRW03D0374, 9680, D0375, 0098, D0376, 0001 [ETX] [CR]
[Response]
[STX] 0101OK [ETX] [CR]
NOTE
The set regenerative energy value range of the PR300 changes depending on the values
of the VT and CT ratios. The table below shows the set value range.
[Secondary Rated Power] ϫ [VT Ratio] ϫ [CT Ratio]
Less than 100 kW
100 kW to less than 1 MW
1 MW to less than 10 MW
10 MW or greater
Possible Set Value Range
0 to 99999 kWh
0 to 999999 kWh
0 to 9999999 kWh
0 to 99999999 kWh
NOTE
The secondary rated power of the PR300 changes depending on its model and suffix
codes.