9
Setting and Installation methods
4-3. Connecting the Communication cable for 485 Communication type
The description in this page is only required when using with the 485 Communication
type.
The 485 Communication type cannot be used as a set combined with [21D] Series
Controller. The computer transmits the RS232C signal data via the wired modem
[MODEL 485H] to the Display.
The RS-485 communication line should be connected in daisy chain connection (one after
another) using a twisted pair cable.
Connect the Terminal block [A] of [MODEL485H] to the Terminal block [A] of Indicator
unit, and Terminal block [B] to the Terminal block [B] of Indicator unit. Also for the
connection between Indicator units, the terminal [A] should be connected to terminal [A]
and terminal [B] to terminal [B] in the same manner as above.
Remove the side panel of display and acrylic plate at backside while referring to
“4-2.
Connecting the Power cord
”, and connect them to the terminal block for RS-485 signal
lest you should mistake the contents of signal.
.
Backside of
Indicator unit
G B A G B A
To the Indicator
unit of other
equipment No
[MODEL485H] Terminal block
Terminal block
Twisted pair cable
<Cable to be used>
Twisted pair cable
（
with shield
）
0.75sq or more, preferably
RS-232C cable
RS-485
[MODEL485]
Connect in such a way of A→A and B→B.
To the Display
