Fuji Electric POD UG221H-LR4 - N: 1 Connection (Multi-Link 2)

5
3. n : 1 Connection (Multi-link 2) 5-3
Connections
3. n : 1 Connection (Multi-link 2)
• One PLC is connected to a maximum of four Simple POD units.
• An original network is created where the Simple POD (Local Port 1) that is directly connected to
the PLC is the master station, and other three Simple POD units are slave stations. Only the
master station makes communications directly with the PLC, and the slave stations make
communications with the PLC via the master station.
• Communications between the Simple POD master station and the PLC depend on the
communication speed set on the PLC. The maximum available speed for the Simple POD is
57600 bps, which is higher than the one available with multi-link connection described in “4. n : 1
Connection (Multi-link).”
• This multi-link connection is available with almost all the PLC models that support 1 : 1 connection
(refer to the Appendix).
(The connection between the master station and the PLC is the same as the one for 1 : 1
connection.)
• Use the RS-485 2-wire connection between stations of the Simple POD. Please use our multi-link
2 master cable (UG00C-H) for connection between the master station (Local Port 1) and the slave
station (Local Port 2).
• The Simple POD and UG20 Series can be used together. The UG20 Series can be the master
station.
(However, when UG221/UG220/Simple POD is the master station, the slave station must be
UG221/UG220/Simple POD. Also, depending on the hardware version of the UG20 Series,
multi-link 2 connection may not be supported. Refer to the User’s Manual <UG20 Series
Hardware> (FEH352).)
• For more information on wiring and communication settings, refer to the User’s Manual <PLC
Connection> (FEH380).
PLC
RS-232C
RS-422
RS-485
CN1 MJ1 CN1 CN1 CN1
SYSTEM
F2
F3
F4
F5
F1
POWER
SYSTEM
F2
F3
F4
F5
F1
POWER
SYSTEM
F2
F3
F4
F5
F1
POWER
SYSTEM
F2
F3
F4
F5
F1
POWER
Fuji’s cable
“UG00C-H” (3 m)
RS-485 connection
Simple POD
master station
Simple POD
slave station
Simple POD
slave station
Local
Port 1
Local
Port 2
Local
Port 3
Local
Port 4
Simple POD
slave station