FPΣ
8.2 Connection Example with External Device
8-11
8.2 Connection Example with External Device
This section explains about the connection example with external device for computer
link.
8.2.1 Connection Example with External Device
(1:1 communication with computer)
Outline
To use a 1:1 computer link with a computer, an RS232C cable is used to set up a 1:1
connection between the FPΣ and the computer. Communication is carried out by the
PLC sending responses to commands sent from the computer side.
Computer
Command message
Response message
FPΣ
RS232C
Figure 148: FPΣ Computer link-connection example (computer)
Communication cassette used for 1:1 communication
The following types of communication cassettes can be used for 1:1 computer link
communication.
Name Description Part No.
FPΣ Communication cassette
1-channel RS232C type
This communication cassette is a 1-channel unit with a
five-wire RS232C port. It supports 1:1 computer links and
general-purpose serial communication. RS/CS control is
possible.
FPG-COM1
FPΣ Communication cassette
2-channel RS232C type
This communication cassette is a 2-channel unit with a
three-wireRS232C port. It supports 1:1computer links and
general-purpose serial communication. Communication
with two external devices is possible.
FPG-COM2
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