Yokogawa PR300 Power and Energy Meter - Manual (Page 60)

<Toc> <Ind> <3. Procedures for Setting PR300 Functions>
3-37
IM 77C01E01-10E
3.8.3 Demand Measurement Start/Stop
[Procedure]
(1) To execute demand measurement start/stop, write data to the D register in the table
below. The data type is integer.
D Register
D0311
Reference No.
40311
H No.
0136
Description
Demand measurement start/stop
Relevant items are as follows:
Demand power (D0043, D0044)
Demand current (D0045 to D0050)
Effective Range
0: Measurement stop
1: Measurement start
Initial value of demand measurement start/stop: 0 (measurement stop)
NOTE
Demand measurement start/stop can also be controlled by operation key. Once the opera-
tion key is used, it is the only means for such control. Control via communication is not
possible until the power is turned off, or remote reset is executed (see subsection 3.7.1).
[Control via communication]
START command STOP command
Time
Time
Perform integration for this duration
Turned on by operation key Turned off by operation key Data update
No response to requests
by operation key
[Control by operation key]
Turned on by operation key Turned off by operation key Perform integration for this duration
START
command
STOP
command
Data update
No response to requests
via communication
[Example]
To execute demand measurement start/stop:
For station number 01, use PC link communication (without checksum) and the random
write command as shown below:
<For start>
[Command]
[STX]01010WRW01D0311,0001[ETX][CR]
[Response]
[STX]0101OK[ETX][CR]
<For stop>
[Command]
[STX]01010WRW01D0311,0000[ETX][CR]
[Response]
[STX]0101OK[ETX][CR]
NOTE
Demand measurement start/stop can be performed for the PR300 with demand measuring
function.