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Expanded System Configuration Section 2-5
1,2,3... 1. If the CPU Unit built-in ports or Serial Communications Unit ports are used,
various protocols can be allocated, such as Host Link and protocol macros.
2. Up to 16 Serial Communications Units can be connected for one CPU Unit.
The system configuration can then be expanded by connecting devices
with RS-232C or RS-422/485 ports, such as Temperature Sensor Units,
Bar Code Readers, ID Systems, personal computers, Board Computers,
Racks, and other companies’ PLCs.
Expanding the system configuration as shown above allows a greater number
of serial communications ports, and greater flexible and simpler support for
different protocols.
3. The Serial Gateway is supported for CPU Units with unit version 3.0 or lat-
er and Serial Communications Boards/Units with unit version 1.2 or later.
• CPU Units with unit version 3.0 or later: Gateway from FINS network to
serial communications (CompoWay/F only) is possible through the
peripheral port and RS-232C port.
• Serial Communications Boards/Units with unit version 1.2 or later: Gate-
way from FINS network to serial network (CompoWay/F, Modbus, or Host
Link) is possible. Using a Gateway to Host Link enables Host Links with
the PLC as master.
•••••
CPU Unit
Serial Communications Units
(16 max.)
Peripheral port
RS-232C port
Communications port 1
Communications port 2
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