55
Subject to error and alteration
Byte Count
Register Value
8 Bit / Byte
Byte
7 6 5 4 3 2 1 0
13. Byte
XX
1. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
2. Byte
3. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
4. Byte
8 Bit / Byte
Byte
7 6 5 4 3 2 1 0
7. Byte
Protocol ID
Transaction ID
5. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
6. Byte
Length
Unit ID
Function Code
XX
XX
00
00
01
00
XX
8 Bit / Byte
Byte
7 6 5 4 3 2 1 0
8. Byte
10
9. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
10. Byte
XX
XX
11. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
12. Byte
XX
XX
Start Address
Quantity of
Registers
14. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
15. Byte
XX
XX
n. Byte
16 Bit / Word
High Byte
Low Byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
n+1. Byte
XX
XX
...................................
Start Address
Specifies at which address to begin writing registers.
Quantity of Registers
Here the number of 16-bit registers to write is sent. When
writing to the 32-bit area of the Web-IO two 16-bit registers
must be counted per 32-bit value.
Bytes Count
Contains the number of bytes to be sent. 2 bytes are counted
for each 16-bit register to be sent.
Register Value
Here the 16-bit registers are sent. The first high byte is set as
the 14th byte in the data packet, the first low byte as the 15th
byte, etc.