Energy Meter Manual

8-16
<Toc> <Ind> <8. PR201 Original Communication Protocol>
IM 77C01E01-10E
● Parameter: G (Reads electric energy)
• Function
Reads the active energy.
• Command/response
Number
of bytes
121 2
2 11
Command
element
STX DG G
Station
number
(ADR)
Checksum
ETX CR
There is no command data for data reading.
121 2 8
Response
element
STX DG G Station
number
(ADR)
ⵧⵧⵧⵧⵧE+䊊
211
Checksum ETX CR
Number
of bytes
Response data is returned as an 8-byte ASCII character string (00000E+0 to 99999E+6).
• Example
Reads the active energy of PR300 with station number 01. 䊐䊐 indicates the checksum
value.
[Command]
[STX]DGG01䊐䊐[ETX][CR]
Returns a response of the active energy: 10 MWh (10000E+3 Wh) for the above
command.
[Response]
[STX]DGG0110000E+3䊐䊐[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
Index display
range
99999E+3 Wh
99999E+4 Wh
99999E+5 Wh
99999E+6 Wh
PR201 original communication
display range
99999 kWh
999990 kWh
9999900 kWh
99999000 kWh
NOTE
The secondary rated power of the PR300 changes depending on its model and suffix
codes.