YOKOGAWA UPM100, User Manual

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8-5
IM 77C01H01-10EN
UPM01 Communication
8
8.3 Functions
This section describes the functions of commands and responses and the contents of
frames. For the meaning of each element, refer to “8.2 Frame Configuration.”
Slots between FRAME LENGTH (FLEN) and ETX as well as the CR slot are data
exchanged between the higher-level device and stations. The response status (S), the
station address (SA), and BCC do not have specific values, so the columns of these three
variables are blank in tables of this section. A data format is specified for each type of data.
8.3.1 Measured Items (Category A)
Data No.
*1
Description
0 Batch transfer (Wh, P, V, I, Q, ɳ
*2
)
1 Electric energy Wh
2 Power P
3 Voltage Vrms
4 Current Irms
5 Reactive power Q
6 UPM100 is not designed to handle
7 UPM100 is not designed to handle
8 All-harmonic distortion factor
*2
9 Power P, reactive power Q
*1: Data No. items in Category A.
*2: The UPM100 does not measure all-harmonic distortion factor. The measured value read out
is always “&H20,” for which no value is given (refer to Appendix, “ASCII Code Table”). The
sequence of the batch transfer is Wh, P, V, I, Q, ɳ. Each of these data has a specific data
format.