C300 Transmission protocol for C300 firmware 5.x.x
C300B transmission protocol 2017-06-12.doc
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Function
Read meter firmware or boot version
Command
METVR_[CR][LF]
Answer
<MET FIRMWARE VERSION>[CR][LF]
Description
Return firmware or boot version
Answer
parameter(s)
<MET FIRMWARE VERSION>
string contains 2 parts separated with space:
“FFFFvNNN YYYYMMDD”
FFFFvNNN
– mode code (FFFF) and program version number (NNN)
YYYYMMDD
– date of program build
Example answer
FIRMv001 20130806[CR][LF]
(or)
BOOTv002 20130806[CR][LF]
Function
Read measurements of phase angles and angles between voltages
Command
RPHAMEAS_[CR][LF]
Answer
<U1I1>,<U2I2>,<U3I3>,<U1U2>,<U1U3>,<N>[CR][LF]
Description
Returns the measurements of phase angles, angles between voltages and a time
measurements
Answer
parameter(s)
<U1I1>, <U2I2>, <U3I3>
value of phase angle (φ1, φ2, φ3)
<U1U2>, <U1U3>
value of angle between voltages (<U12, <U13)
<N>
time of measurement expressed in number of periods
Example answer
-0.004,-0.005,-0.002,119.998,-120.007,54 [CR][LF]
