IME IF2E011 - Interface Working Modes; Bridge Mode

2
Working mode
The interface may work in the following configurations :
1) “Bridge” (Tunnelling)
2) “Bridge” with ModBus Over TCP protocol
3) “Web”
“Bridge” is also called “Cable wired” and it means the message is carried
without any variation
Bridge
See the following example of a request message to node 1 at address
0x1000 for both Modbus RTU
Node
Address
Function
code
Register
Hi
Register
Lo
Length
Hi
Length
Lo
CRC16
Lo
CRC16
Hi
01
03
10
00
00
02
C0
CB
Modbus Over TCP
Incremental
number
hi
Incremental
number
Lo
Protocol
type
Protocol
type
Byte
number
Hi
Byte
number
Lo
Indirizzo
Nodo
Functio
n code
Register
Hi
Register
Lo
Length
Hi
Length
Lo
00
01
00
00
00
06
01
03
10
00
00
02
Both frames are carried without any modification.