User's Guide

20
Note: Channel ID can be configured in ToolBox.
Examples:
Note: When data type is holding register or input register, ToolBox can set different byte orders.
Take below Modbus register response from RS485 sensors as example:
When using different byte orders, you can use ToolBox to fetch different results, and the device
will upload data with little endian order.
16 bits
09
Input_int32_with lower
16 bits
0a
Hold_int32_with upper
16 bits
0b
Hold_int32_with lower 16
bits
ff
15 (Modbus
collecting exception)
1
Channel ID of failed Modbus
collection.
Channel ID
Description
00
RS485 (Modbus Master) Channel 1
01
RS485 (Modbus Master) Channel 2
02
RS485 (Modbus Master) Channel 3
...
...
0f
RS485 (Modbus Master) Channel 16
ff 19 07 02 03 15 00
Channel
Type
Channel ID
Data Size
Data Type
Value
ff
19
(RS485)
07 =>
Channel 8
02 =>
2 bytes
03 => Hold
16
15 00 =>
00 15 = 21
Register Address
Value (Hex)
0
00 15
1
00 20
Data Type
Byte Order
Fetch Result
Uplink (HEX)
Holding/Input Register (INT16)
AB
21 (0x15)
15 00 (BA)
BA
5376 (0x1500)
00 15 (AB)
Holding/Input Register (INT32)
ABCD
1376288
(0x00150020)
20 00 15 00
(DCBA)
CDAB
2097173
(0x00200015)
15 00 20 00
(BADC)
BADC
352329728
(0x15002000)
00 20 00 15
(CDAB)