AD Power HPM-300A, Manual, Page: 23 / 26

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Commend Size of byte Function
‘S’ 1 Command
‘#’ 1 Closer
Communication protocol commands
The transmission protocols can be confirmed in the hyper terminal.
- There is a charge for cable supply for data communication.
Data transmission start command
Transmitting data protocol: It continuously transmits data in an approximately 0.5s cycle.
In a set of data, 'S' means the start of the data, and 'E' means the end of the data.
Each item of data to be transmitted is up to six digits.
The first 5 digits are effective numbers, and the last digit indicates the position of decimal
point as shown in the illustration.
“Vo, Am, Wa, Wh, Pf, and Hz” mean Voltage, Ampere, Wattage, Watt hours, Power Factor,
and Hertz respectively. The example below is the ASCII data converted from
219.30V, 145.70mA, 12.910W, 14.680Wh, 0.4040Pf, and 59.980Hz respectively
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