Yokogawa PR300 Power and Energy Meter - Manual (Page 120)

<Toc> <Ind> <8. PR201 Original Communication Protocol>
8-5
IM 77C01E01-10E
8.5 Command Details
■
Command: DG
●
Parameter: 0 (Reads measured values in batch)
• Function
This command reads the active energy, optional electric energy (previous and current
values), active power, voltage-1, current-1 and the power factor.
• Command/response
Number
of bytes
1 2 1 2 2 1 1
Command
element
STX DG 0 Station
number
(ADR)
Checksum ETX CR
There is no command data for data reading.
1 2 1 2 5 5 5
Response
element
STX DG 0 Station
number
(ADR)
ٗٗٗٗٗ
Active energy
9
Ϯٗ . ٗٗٗ E ϩ᭺
(Active power)
ddddd
(Previous
optional
electric
energy value)
ddddd
(Current
optional
electric
energy value)
Number
of bytes
Response data is returned as a 46-byte ASCII character string.
Continued:
8 8 2 1 1
ٗ . ٗٗٗ E ϩ᭺
(Voltage-1)
ٗ . ٗٗٗ E ϩ᭺
(Current-1)
6
᭝ٗ . ٗٗٗ
(Power factor)
Checksum ETX CR
• Example
The PR300 measured values of station number 01 are read out in a batch.
ᮀᮀ
indicates
the checksum value.
[Command]
[STX]DG001 ᮀᮀ [ETX][CR]
The following response is returned for the above command.
[Response]
[STX]DG001100001000010000+1.000E+31.000E+31.000E+3G0.800 ᮀᮀ [ETX][CR]
(1) (2) (3) (4) (5) (6) (7)
(1) Active energy: 10000 kWh, (2) Optional electric energy (previous value):
10000 Wh, (3) Optional electric energy (current value): 10000 Wh, (4) Active
power: +1.000E+3 W (10000 W), (5) Voltage-1: 1.000E+3 V (1000 V),
(6) Current-1: 1.000E+3 A (1000 A) and (7) Power factor: G0.800.