Omron CP1E-E10DT-A, User Manual

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A-47
Appendices
CP1E CPU Unit Hardware User’s Manual(W479)
A-3 W
irin
g
f
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r S
e
rial
Co
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u
n
icatio
n
s
App
A
-3-3
Con
v
er
ting t
he
Built
-in
RS-23
2
C P
o
rt
t
o
RS
-422A
/485
z
DIP Switch Setting
The NT-AL001 RS-232C/RS-422A Conversion Unit has a DIP switch for setting RS-422A/485
communications conditions.
When connecting the Serial Communications Option Board, refer to the DIP switch settings shown
in the following table.
* When connecting to a CP-series CPU Unit, turn OFF pin 5 and turn ON pin 6.
z
Application Example
* DR and ER signals are not supported by the N S(1)-type CPU Unit.
Note The following cables can be used for this connection.
It is recommended that one of these cables be used to connect the RS-232C port on the Option Board
to the NT-AL001 RS-232C/RS-422 Conversion Unit.
Pin Function Factory setting
1 Not used. (Leave set to ON.) ON
2 Built-in terminating resistance setting
ON: Connects terminating resistance, OFF: Disconnects terminating resis-
tance
ON
3 2/4-wire setting
2-wire: Set both pins to ON, 4-wire: Set both pins to OFF
OFF
4 OFF
5 Transmission mode setting*
Constant transmission: Set both pins to OFF.
Transmission performed when CS signal in RS-232C interface is at high level:
Set pin 5 to OFF and pin 6 to ON.
Transmission performed when CS signal in RS-232C interface is at low level:
Set pin 5 to ON and pin 6 to OFF. ON
6 OFF
Length Model numbers
70cm XW2Z-070T-1
2m XW2Z-200T-1
NT-AL001
3
2
4
5
6
7
8
9 RD
SD
RS
CS
+5V
DR
ER
SG
FG
4
3
6
5
1 SDA
SDB
RDA
RDB
GRD
RDA
RDB
SDA
SDB
RS-422
RDA
RDB
SDA
SDB
SD
RD
RS
CS
+5V
DR*
ER*
SG
FG
2
3
4
5
6
7
8
9
FG
RS-232C
CP1E N/NA (S)-type CPU Unit
Built-in RS-232C Port or RS-232C
Option Board
RS-232C/RS422A Conversion Unit
Pin Signal
Pin Signal Pin Signal Signal
Shield
Hood
Hood
Remote device
Signal
Remote device
(See note)