Rs232 Protocol - Helios RM-PSW5KVA Series Instruction Manual

7-3

RS232 Protocol

A. COMMUNICATION PROTOCOL: ( SF / RM Series Inverters )
1. Status Inquiry:
Computer: Q1<cr>
INV INV
(MMM.M NNN.N PPP.P QQQ RR.R S.SS TT.T b7b6b5b4b3b2b1b0<cr>
INVERTERdata stream :
There should be a space character between every field is list as followed:
a. Start byte
b. I/P voltage
M is an integer number ranging from 0 to 9.
The unit is Volt.
c. I/P fault voltage : NNN.N------------------------------(SPEC)
N is an integer number ranging from 0 to 9.
The unit is Volt.
d. O/P voltage
P is an integer number ranging form 0 to 9.
The unit is Volt.
e. O/P current
QQQ is a percent of maximum current, not an absolute value.
f. I/P frequency : RR.R
R is an integer number ranging from 0 to 9.
The unit is HZ.
g. Battery voltage : SS.S or S.SS
S is an integer number ranging from 0 to 9.
For on-line units battery voltage/cell is provided in the form S.SS
For standby units actual battery voltage is provided in the form SS.S
UPS type in UPS status will determine which reading was obtained.
h. Temperature
data stream, such as
: (
: MMM.M------------------------------(SPEC)
: PPP.P
: QQQ
: TT.T
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