Yokogawa PR300 Power and Energy Meter - Manual (Page 123)

8-8
<8. PR201 Original Communication Protocol>
IM 77C01E01-10E
• Example
Reads the active power of PR300 with station number 01.
ᮀᮀ
indicates the checksum
value.
[Command]
[STX]DG301 ᮀᮀ [ETX][CR]
Returns a response of active power 1000 W (+1.000E+3 W) for the above command.
[Response]
[STX]DG301+1.000E+3 ᮀᮀ [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
1 2 1 2 2 1 1
Command
element
STX DG 4
(H)
(J)
Station
number
(ADR)
Checksum ETX CR
There is no command data for data reading.
1 2 1 2 8
Response
element
STX DG 4
(H)
(J)
Station
number
(ADR)
ٗ . ٗٗٗ E ϩ᭺
2 1 1
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.
ᮀᮀ
indicates the checksum value.
[Command]
[STX]DG401 ᮀᮀ [ETX][CR]
Returns a response of voltage-1: 1000 V (1.000E+3 V) for the above command.
[Response]
[STX]DG4011.000E+3 ᮀᮀ [ETX][CR]