Command/response, Example – Yokogawa PR300 Power and Energy Meter User Manual
Page 130
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<8. PR201 Original Communication Protocol>
8-15
IM 77C01E01-10E
●
Parameter: F (Reads measured values in batch)
• Function
Reads the active energy, optional electric energy (previous and current values), active
power, voltage-1, voltage-2, voltage-3, current-1, current-2, current-3 and power factor.
• Command/response
Number
of bytes
1
2
1
2
2
1
1
Command
element
STX
DG
F
Station
number
(ADR)
Checksum ETX
CR
There is no command data for data reading.
1
2
1
2
8
5
5
Response
element
STX
DG
F
Station
number
(ADR)
ٗٗٗٗٗ
E
ϩ᭺
(Active energy)
9
Ϯٗ
.
ٗٗٗ
E
ϩ᭺
(Active power)
ddddd
(Previous value
of optional
electric energy)
ddddd
(Current value
of optional
electric energy)
Number
of bytes
Response data is returned as an 81-byte ASCII character string.
Continued
8
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Voltage-1)
ٗ
.
ٗٗٗ
E
ϩ᭺
(Voltage-2)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Voltage-3)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Current-1)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Current-2)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Current-3)
Continued
6
2
1
1
᭝ٗ
.
ٗٗٗ
(Power factor)
Checksum ETX
CR
• Example
Reads the measured values of PR300 with station number 01 in batch.
ᮀᮀ
indicates the
checksum value.
[Command]
[STX]DGF01
ᮀᮀ
[ETX][CR]
Returns the following response for the above command.
[Response]
[STX]DGF0110000E+31000010000+1.000E+31.000E+31.000E+31.000E+3
1.000E+31.000E+31.000E+3G0.800
ᮀᮀ
[ETX][CR]
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(1) Active energy: 10000E+3 Wh (10 MWh), (2) Optional electric energy (previ-
ous value): 10000 Wh, (3) Optional electric energy (current value): 10000 Wh,
(4) Active power: +1.000E+3 W (1000 W), (5) Voltage-1: 1.000E+3 V (1000 V),
(6) Voltage-2: 1.000E+3 V (1000 V), (7) Voltage-3: 1.000E+3 V (1000 V),
(8) Current-1: 1.000E+3 A (1000 A), (9) Current-2: 1.000E+3 A (1000 A),
(10) Current-3: 1.000E+3 A (1000 A), (11) Power factor: G0.800