Energy Meter Manual

8-8
<Toc> <Ind> <8. PR201 Original Communication Protocol>
IM 77C01E01-10E
• Example
Reads the active power of PR300 with station number 01. 䊐䊐 indicates the checksum
value.
[Command]
[STX]DG301䊐䊐[ETX][CR]
Returns a response of active power 1000 W (+1.000E+3 W) for the above command.
[Response]
[STX]DG301+1.000E+3䊐䊐[ETX][CR]
● Parameter: 4 (Instantaneous voltage-1), Parameter: H (Instantaneous voltage-
2), Parameter: J (Instantaneous voltage-3)
• Function
Reads voltage-1 by parameter: 4, voltage-2 by parameter: H and voltage-3 by parameter: J
• Command/response
Number
of bytes
121 2
2 11
Command
element
STX DG 4
(H)
(J)
Station
number
(ADR)
Checksum
ETX CR
There is no command data for data reading.
121 2 8
Response
element
STX DG 4
(H)
(J)
Station
number
(ADR)
ⵧ.ⵧⵧⵧE䊊
211
Checksum ETX CR
Number
of bytes
Response data is returned as an 8-byte ASCII character string (0.000E+0 to 9.999E+6).
• Example
Reads voltage-1 of PR300 with station number 01. 䊐䊐 indicates the checksum value.
[Command]
[STX]DG401䊐䊐[ETX][CR]
Returns a response of voltage-1: 1000 V (1.000E+3 V) for the above command.
[Response]
[STX]DG4011.000E+3 䊐䊐[ETX][CR]