Yokogawa PR300 Power and Energy Meter - Manual (Page 136)

<8. PR201 Original Communication Protocol>
8-21
IM 77C01E01-10E
■
Command: DP
●
Parameter: 0 (Reads setting value)
• Function
Reads the VT ratio, CT ratio and integrated low-cut power. The read low-cut power is
always 0.
• Command/response
Number
of bytes
1 2 1 2 2 1 1
Command
element
STX DP 0 Station
number
(ADR)
Checksum ETX CR
1 2 1 2 6
Response
element
STX DP 0 Station
number
(ADR)
ٗٗٗٗٗٗ
(VT ratio)
6
ٗٗٗٗٗٗ
(CT ratio)
Number
of bytes
Response data is returned in a 16-byte ASCII character string.
Continued
4 2 1 1
ٗٗ . ٗ
(Integrated low-cut power)
Checksum ETX CR
Response data to be returned for integrated low-cut power is always 0.
• Example
Reads the setting value of PR300 with station number 01.
ᮀᮀ
indicates the checksum
value.
[Command]
[STX]DP001 ᮀᮀ [ETX][CR]
Returns a VT ratio of 10, a CT ratio of 100 and an integrated low-cut power of 0 for the
above command.
[Response]
[STX]DP00100001000010000.0 ᮀᮀ [ETX][CR]