Parameter: 1 (reads electric energy) • function, Command/response, Example – Yokogawa PR300 Power and Energy Meter User Manual
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<Toc> <Ind>
<8. PR201 Original Communication Protocol>
IM 77C01E01-10E
●
Parameter: 1 (Reads electric energy)
• Function
Reads the active energy.
• Command/response
Number
of bytes
1
2
1
2
2
1
1
Command
element
STX
DG
1
Station
number
(ADR)
Checksum ETX
CR
There is no command data for data reading.
1
2
1
2
5
Response
element
STX
DG
1
Station
number
(ADR)
ٗٗٗٗٗ
2
1
1
Checksum ETX
CR
Number
of bytes
Response data is returned as a 5-byte ASCII character string (00000 to 99999).
• Example
Reads the active energy of PR300 with station number 01.
ᮀᮀ
indicates the checksum
value.
[Command]
[STX]DG101
ᮀᮀ
[ETX][CR]
Returns a response with the active energy of 10000 kWh for the above command.
[Response]
[STX]DG10110000
ᮀᮀ
[ETX][CR]
NOTE
Display ranges of active energy vary depending on the values of the VT and CT ratios. See
the following table for display range details.
Secondary rated power x VT ratio x CT ratio
100 kW or less
100 kW or more, 1 MW or less
1 MW or more, 10 MW or less
10 MW or more
Internal data
99999 kWh
999999 kWh
9999999 kWh
99999999 kWh
PR201 original communication display range
99999 kWh
NOTE
The secondary rated power of the PR300 changes depending on its model and suffix
codes.