Hitachi WJ200-001L, Instruction Manual

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Ver.3
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Example 1-4: When reading and writing 32-bit data at the same time with Special Endian.
Reading and writing below data from slave one inverter with Special Endian
Reading: Acceleration time (2) (A092, register number = 1274h, 1275h), read data = 1300.14sec, since
the data resolution of Acceleration time (2) Holding register is 0.01sec, 130014d=0001FBDEh
Writing: Deceleration time (2) (A093, register number = 1276h, 1277h), write data = 3500.00sec, since
the data resolution of Deceleration time (2) Holding register is 0.01sec, 350000d=00055730h
Query:
Notice the data from 12
th
to 15
th
. Write data (Change data) are subject to Endian function.
(As for the data arrangements of Special Endian, please refer to "[2] How data are arranged by each
endian.")
No Field Name Example
(Hex)
1 Slave address 01
2 Function code 17
3 Start address to read (high byte) 12
4 Start address to read (low byte) 73
5 Number of holding registers to read
(high byte)
00
6 Number of holding registers to read
(low byte)
02
7 Start address to write (high byte) 12
8 Start address to write (low byte) 75
9 Number of holding registers to write
(high byte)
00
10 Number of holding registers to write
(low byte)
02
11 Byte number to write 04
12 Change data 1 (high byte) 57
13 Change data 1 (low byte) 30
14 Change data 2 (high byte) 00
15 Change data 2 (low byte) 05
16 CRC-16 (high byte) 78
17 CRC-16 (low byte) 2A
Register address value = Register
Number - 1
Register address value = Register
Number - 1
Subject to Endian function
：
Write Data
：
00055730h