ADTEK CS1-RL Operation Manual page 28

RS485 MODBUS RTU MODE
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Modbus RTU Mode protocol
1. Function 03H (Read Holding Registers)
Request Data Frame; EX: Read the data of display value(0000H starts from 1 Word)
SLAVE FUNCTION
Address
01H 03H
Response Data Frame; EX: The response value is "0"
SLAVE FUNCTION
Address
01H 03H
Request Data Frame (EX: Continue to request the data of 10 points)
SLAVE FUNCTION
Address
01H 03H
Response Data Frame
SLAVE FUNCTION
Address
01H 03H
2. Writing Command by Function 06H (Preset Single Register)
Request Data Frame
SLAVE FUNCTION
Address Code
01H 06H
Response Data Frame
SLAVE FUNCTION
Address Code
01H 06H
ADDRESS TABLE **Address number are Hexadecimal
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User level
Name Address
2 Words
PV_H*
0000h
PV_L* 0001h
pVhld_h
0002h
*
pVhld_l
0003h
*
min_h
0004h
*
min_l
0005h
*
max_h
0006h
*
max_l
0007h
*
diamtr_h 0008h
*
diamtr_l 0009h
*
pv.spn_h 000Ah
*
pv.spn_l 000Bh
*
rs485_h 000Ch
*
rs485_l
000Dh
*
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Starting Starting
Address Hi Address Lo
00H 00H
Byte Data
count Hi
02H 00H
Starting Starting
Address Hi Address Lo
00H 00H
Byte Data(1)
count Hi
14H 00H
Starting Starting
Address Hi Address Lo
00H 00H
Starting Starting
Address Hi Address Lo
00H 00H
Range
Present Value*(High Word)
Present Value*(Low Word)
PV Hold*(High Word)
PV Hold*(Low Word)
The Minimum of PV*(High Word)
The Minimum of PV*(Low Word)
The Maximum of PV*(High Word)
The Maximum of PV*(Low Word)
0.0001~9.9999 Diameter of rotor*(High Word)
Diameter of rotor*(Low Word)
-19999~+19999 PV Span*(High Word)
PV Span*(Low Word)
-19999~+19999 PV controlled by RS 485 command
*(High Word)
PV controlled by RS 485 command
*(Low Word)
CS1-RL(F) –OPERATION MANUAL(EN)-2013-01-04
No. of No. of
Word Hi Word Lo
00H 01H
Data CRC
Lo Lo
00H B8H
No. of No. of
Word Hi Word Lo
00H 0AH
Data(1) ... ... Data(10)
Lo
00H ... ... 01H
Preset Preset
DATA Hi DATA Lo
00H 02H
Preset Preset
DATA Hi DATA Lo
00H 02H
Explain
CRC CRC
Lo Hi
84H 0AH
CRC
Hi
44H
CRC CRC
Lo Hi
C5H CDH
Data(10) CRC
Hi Lo Lo
00H --
CRC CRC
Lo Hi
08H 0BH
CRC CRC
Lo Hi
08H 0BH
Initial Write/Read Note
0000h RW
03E8h RW
RW
RW
RW
RW
CRC
Hi
--
R
R
R
R
R
R
R
R