Yokogawa PR300 Power and Energy Meter - Manual (Page 33)

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<Toc> <Ind> <3. Procedures for Setting PR300 Functions>
IM 77C01E01-10E
3.4 Demand Setting
3.4.1 Demand Power/Current
[Procedure]
(1) Write a demand power/current value to the D register in the table below. The data type
is integer.
(2) After writing that value, write 1 to the demand measurement writing status register,
D0226.
D Register
D0218
D0226
Reference No.
40218
40226
H No.
00D9
00E1
Description
Demand power/current
Demand measurement writing
status (D0218 to D0225 are
validated)
Effective Range
0: Active power
1: Current
If other than 1: Invalid
If 1: Writing is executed
Initial value of demand power/current: 0 (active power)
[Example]
To set the demand power/current to 1 (current):
For station number 01, use PC link communication (without checksum) and the random
write command as shown below:
[Command]
[STX] 01010WRW02D0218, 0001, D0226, 0001 [ETX] [CR]
[Response]
[STX] 0101OK [ETX] [CR]
NOTE
• A demand power/current value can be set for the PR300 with demand measuring
function.
• When the PR300 is the three-phase four-wire system (2.5 element), “1: Current” can
be measured only when the current is in a state of equilibrium.