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Setup
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CPS-MC341-DS2-111, CPS-MC341-DS2-911 Reference Manual (Hardware)
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36
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1.
Set Data Transfer Mode
With the DIP switch (SW1, SW2), data transfer mode can be changed (half-duplex or full-duplex).
Set the data transfer mode in accordance with a device which you are connecting to.
1.
RS-422A/485
Half-Duplex Switch Setup
Data transfer mode
Setup method
Half-duplex [Half]
TX is used to transfer data; the sending and receiving modes should be
switched over using RTS.
Terminator setup
Set the terminators on or off in accordance with the device which you are communicating with.
The DIP switch (SW2) sets the terminator.
The terminators on the product are
100Ω
resistors.
If you intend to use a terminator of other than
100Ω,
set the terminator switch OFF first, and insert
an external terminator.
(A)
or (D)
(B) or (C)
Use the terminator inside
Set the terminator outside
When using the terminator
neither inside nor outside
COM B
USB
RS-232C
1
ON
2 3 4
1 2 3 4 5 6
SW2
SW1
ON
Terminator
(Bit 1)
Terminator
(Bit 1)
Device A
Device B
Device C
Device D
1
ON
2 3 4
1 2 3 4 5 6
SW2
SW1
ON
1
ON
2 3 4
1 2 3 4 5 6
SW2
SW1
1
ON
2 3 4
1 2 3 4 5 6
SW2
SW1
