Example, Command/response – Yokogawa PR300 Power and Energy Meter User Manual
Page 127
8-12
<8. PR201 Original Communication Protocol>
IM 77C01E01-10E
• Example
Initializes the maximum and minimum values of PR300 with station number 01.
ᮀᮀ
indi-
cates the checksum value.
[Command]
[STX]DG901
ᮀᮀ
[ETX][CR]
Returns the following response for the above command.
[Response]
[STX]DG901
ᮀᮀ
[ETX][CR]
●
Parameter: A (Reads measured value and maximum/minimum values in
batch)
• Function
Reads the active energy, optional electric energy (previous and current values), active
power, voltage-1, current-1, power factor, maximum voltage-1, minimum voltage-1 and
maximum current-1.
• Command/response
Number
of bytes
1
2
1
2
2
1
1
Command
element
STX
DG
A
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
A
Station
number
(ADR)
ٗٗٗٗٗ
(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 a 70-byte ASCII character string.
Continued
8
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Voltage-1)
ٗ
.
ٗٗٗ
E
ϩ᭺
(Current-1)
6
᭝ٗ
.
ٗٗٗ
(Power factor)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Maximum voltage-1)
8
ٗ
.
ٗٗٗ
E
ϩ᭺
(Minimum voltage-1)
Continued
8
2
1
1
ٗ
.
ٗٗٗ
E
ϩ᭺
(Maximum current-1)
Checksum ETX
CR