Start
: Most significant 8 bits of starting
Address High
address of the parameter requested.
Start
: Least significant 8 bits of starting
Address low
address of the parameter requested.
Number of
: Most significant 8 bits of Number of
register Hi
registers requested.
Number of
: Least significant 8 bits of Number of
register Lo
registers requested.
(Note : Two consecutive 16 bit register represent one parameter.)
Response
00 (Hex)
02(Hex)
20 (Hex)
0B (Hex)
Number of Registers Hi
Number of Registers Lo
CRC Low
CRC High
Table 3 : 4 X register addresses
Address
(Register)
Par-
meter
No.
Parameter
Modbus Start Address Hex
Low Byte
High Byte
Read /
Write
40001
40003
40005
40007
40009
40011
40013
40015
40017
40019
1
2
3
4
5
6
7
8
9
10
-
Mode selection
-
-
-
-
-
Device address
RS 485 Setup
Password
-
00
-
-
-
-
-
00
00
00
-
02
-
-
-
-
-
0E
10
12
-
R/Wp
-
-
-
-
-
R/Wp
R/Wp
R/Wp
43