6
Example: The contents of the holding register 1001H are the read out from slave address 1.
Query message: 01 03 10 01 00 01 D1 0A
Response message: 01 03 02
00 FD
79 C5
Explain
：
00FD=253,is processed as 25.3
10.5 Preset single register [06H]
The query message specifies data to be written into the designated holding register. Only R/W holding
registers can be specified. The controller EEPROM had a life span of data written to the EEPROM less than
1000,000 times
Slave address
Function code
Register
address
Write data
CRC16
Example: Data is written into the holding register 0004H of slave address 1.
Query message: 01 06 00 04 FF 38 88 29
Response message: 01 06 00 04 FF 38 88 29
When input set value(SV) is -20.0,-20.0 is processed as -200,-200=0000H-00C8H=FF38H
10.6 No response
The slave ignores the query message and does not respond when:
• The slave address in the query message does not coincide with any slave address settings.
• The CRC code of the master does not coincide with that of the slave.
• Transmission error such as overrun, framing, parity and etc., is found in the query message.
• The Communication time interval less than 300ms.
10.7 Register address list:
Symbol
Decimal point
Real Register
Holding Register
Measured value(PV)
YES
1001H~1004H
44098~44101
The first public parameters
(Refer to 5. Parameters)
Lock
NO
0000H
40001
TS
NO
0001H
40002
… and so on
Baud
NO
0009H
40010
The Parameters of channel 1
(Refer to 5. Parameters)
SP1~ COL1
-
000AH~0012H
40011~40019
The Parameters of channel 2
(Refer to 5. Parameters)
SP2~ COL2
-
0013H~001BH
40020~40028
The Parameters of channel 3
(Refer to 5. Parameters)
SP3~ COL3
-
001CH~0024H
40029~40037
The Parameters of channel 4
(Refer to 5. Parameters)
SP4~ COL4
-
0025H~002DH
40038~40046
Character Symbols
：
This manual indicates 9-segment display characters as shown below.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
Y
