Operation
1. Warning Item
Holding Register (Range 0x0000 - 0x0001, Read Function 0x03)
The Read Holding Registers function code is used to read contents of a contiguous block of Holding Registers in a remote
device. Starting register address and number of registers is specified by the request Protocol Data Unit. Addresses start at 0
and registers numbered 1-16 address as 0-15.
The Write Single Register function code is used to write a Single Holding Register in a remote device. The address of the register
to be written is specified by the request Protocol Data Unit. Addresses start at 0 and registers numbered 1 address as 0.
Address
Hex
Decimal
Description
Bit15 = EPO is Active
Bit14 = Load is over load level and reach countdown delay
Bit12 = Load level is over Overload Alarm Level
Bit11 = Battery is not connected
(battery voltage is less than 9V)
Bit10 = Battery is over 15V
Bit8 = Including: EPO is active, Maintain Bypass is active, DC start, but DC start setting
is disabled
Line Status is not OK (Voltage or Frequency is out of range, Phase sequence is not
correct, Neutral Loss)
SYNCHRO signal is abnormal
0x0000
0
TRIG0 signal is abnormal
Bit7 = Charger is abnormal
Bit6 = Checksum value of EEPROM Data saved in MCU
is not correct
Bit5 = Fan locked
Bit4 = Line Phase sequence is not correct
Bit3 = Bypass Phase sequence is not correct
Bit2 = Neutral is absent
Bit1 = Initial communication between DSP and MCU is abnormal
Bit0 = SYNCHRO signal is abnormal
Bit15 = TRIG0 signal is abnormal
Bit14 = Power Module number is not consistent with setting
0x0001
1
Bit13 = No STS in system
Bit12 = Maintain Bypass is active
Bit11-Bit0 = Reservation
2
Value 0/Value 1
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
0:FALSE/1:TRUE
N/A