FC6A S
ERIES
M
ICRO
S
MART
A
LL
-
IN
-O
NE
T
YPE
C
OMMUNICATION
M
ANUAL
FC9Y-B1730 6-27
6: M
ODBUS
C
OMMUNICATION
Modbus RTU Pass-Through Function
The Modbus RTU pass-through function allows a Modbus TCP client connected to a Modbus TCP network to access a Modbus RTU
slave connected to a Modbus RTU network.
This function can read and write devices on a Modbus RTU slave device connected to port 1 of the FC6A Series MicroSmart from
the Modbus TCP client device connected to Ethernet port 1 of the FC6A Series MicroSmart.
The Modbus RTU pass-through function is only supported between Ethernet port 1 and port 1 on the FC6A Series MicroSmart.
FC6A Series MicroSmartFC6A Series MicroSmart
FC6A Series MicroSmart
Modbus TCP Server
Modbus RTU Master
Modbus TCP Client
Modbus TCP Client
Operator Interface
Computer
Modbus RTU Slave
Modbus RTU Slave
Ethernet
Modbus RTU Communication
Ethernet Hub Ethernet Hub
Port 1
Ethernet Port 1