
002AH
R
USHORT
Minute
2016-01-01
00:00:00
002BH
R
USHORT
Hour
002CH
R
USHORT
Day
002DH
R
USHORT
Month
002EH
R
USHORT
Year
002FH
R
Event ID
2
USHORT
0~12
0
0030H
R/W
Wiper Act.
Time Interval
2
USHORT
Minute
9
Note 1: Actions without * only supports function code 03H. Actions with * supports function code 03H, 06H,
10H.
Note 2: FLOAT is a 32-bit IEEE 754 format. The above table, as an example, is divided into two 16-bit
register data transmissions. The second 16-bit register (00 00) will be transferred first, followed by
the first 16-bit register (41 C8). Every 16-bit format is high-bit in the front and low-bit in the back.
For example, if the temperature now is 25.1
o
C, the 16-bit of FLOAT data (hexadecimal) will be 41
C8 00 00. The transmission order will be 00 00 41 C8. For detailed description, please refer to
section 9.3, Modbus example description.
Note 3: USHORT represents unsigned short integer.
Note 4: Event Logbook ID
If the user requires Modbus to retrieve information from the logbook, 0028H must be input first
before reading 0029H~002F corresponding event. Logbook ID #1 represents the newest recorded
event, ID #2 represents the last recorded event, and so on.
Event
Definition
Modbus ID #
Mea mode
Measurement Mode
00
Set mode
Setup Mode
01
Cal mode
Calibration Mode
02
Power On
Power on
03
Power Off
Power off
04
ppm_mA Over
Current over range
05
mg/l_mA Over
Current over range
06
Error 2
Slope over range
07
Error 3
Calibration value not stable
08
Error 4
Cannot identify standard solution
09
Error 5
Incorrect passcode
10
Error 6
Electrode not connected or not working
11
Modbus Write
Modbus input action
12
50