2: M
ODULE
S
PECIFICATIONS
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FC5A MicroSmart User’s Manual FC9Y-B1268
Expansion RS232C/RS485 Communication Modules
The expansion RS232C/RS485 communication modules can be attached to the CPU modules to add RS232C or RS485
communication port 3 through port 7. The FC5A-SIF2 expansion RS232C communication module is an expansion module
used with CPU modules system program version 110 or higher. The FC5A-SIF4 expansion RS485 communication module is
an expansion module used with CPU modules system program version 220 or higher.
For details about expansion RS232C/RS485 communication, see page 25-1 (Advanced Vol.).
Parts Description
(1) Expansion Connector
(2) Module Label
(3) LED Indicator
(4) Terminal Name
(5) Cable Terminal
(1) Expansion Connector
Connects to the CPU and other I/O modules.
(All-in-one 10- and 16-I/O type CPU modules cannot be connected.)
(2) Module Label
Indicates the expansion RS232C/RS485 communication module Type No. and specifications.
Expansion RS232C/RS485 communication modules have the version number indicated on the
module label attached to the side of the module. Confirm the version number because some
specifications differ depending on the version number. For the position of the version number
printed on the module label, see
page 2-56.
PWR
SD
RD
(3) LED Indicators
PWR: Turns on when this module is powered up.
Flashes when the power supply to FC5A-SIF4 is insufficient.
SD:
Turns on when this module is sending data.
RD:
Turns on when this module is receiving data.
(4) Terminal Name
Indicates terminal names.
(5) Cable Terminal
Screw terminals for wiring.
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