2. CONNECTING
IMSRM04-E8
7
2.1 Connection Block Diagram
2.1.1 When connecting control unit with host computer directly
The communication interface for control unit are RS-232C and RS-422A. When using the RS-422A, a
maximum of 16 control units can be connected.
However, when connecting to the computer which only has a RS-232C driver, conversion of the
communication interface will be necessary.
Our recommended RS-232C/RS-422A converter are shown below:
RS-232C/RS-422A converter: COM-A
For details on the RS-232C/RS-422A converter, see the RS-232C/RS-422A converter
instruction manual.
RS-232C
When RS-232C is selected for the
control unit communications, only
one control unit may be connected.
RS-232C
RS-422A
Maximum of 16 units
RS-422A
Control unit Control unit
RS-232C/RS-422A
converter
Host computer
Host computer
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