FC6A S
ERIES
M
ICRO
S
MART
A
LL
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IN
-O
NE
T
YPE
C
OMMUNICATION
M
ANUAL
FC9Y-B1730 1-7
1: G
ENERAL
I
NFORMATION
Modbus Communication
The FC6A Series MicroSmart is compliant with Modbus RTU protocol and can be used as either a Modbus communication master or
slave. With Modbus communication, the FC6A Series MicroSmart can monitor and modify the data of inverters and temperature
controllers.
For details on Modbus communication, see "Modbus Communication" on page 6-1.
Supported ports
■ Modbus RTU Communication Using Serial Port 1
This example shows a system in which a FC6A Series MicroSmart is communicating with a temperature controller and an inverter
that support Modbus RTU. The A temperature controller is connected to port 1 of the FC6A Series MicroSmart.
Data Link System
The FC6A Series MicroSmart supports data link communication, and it can share data between CPU modules using serial port 1
and cartridge slots. The FC6A Series MicroSmart can also share data with FC5A Series and FC4A Series CPU modules. Configure
the settings in WindLDR to enable distributed control of a maximum of 31 CPU modules.
For details about the data link communication, see "Data Link Communication" on page 7-1.
Supported ports
■ Data Link Communication Using Serial Port 1
This example shows communication between multiple CPU modules with the FC6A Series MicroSmart as the master station. A
slave station CPU module is connected to port 1 of the FC6A Series MicroSmart.
USB Port Serial Port 1 Ethernet Port 1
Communication
Cartridge
CAN Port
HMI-Ethernet
Port
No Yes Yes Yes No No
Temperature Controller
Inverter
Serial Port 1
(Port 1)
FC6A Series MicroSmart
USB Port Serial Port 1 Ethernet Port 1
Communication
Cartridge
CAN Port
HMI-Ethernet
Port
No Yes No Yes No No
FC6A Series MicroSmart
(Slave Station 1)
FC6A Series MicroSmart
(Slave Station 31)
Serial Port 1
(Port 1)
FC6A Series MicroSmart
(Master Station)
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