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Appendices
A-52
CP1E CPU Unit Hardware User’s Manual(W479)
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.
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)
Summary of Contents for CP1E-E**D Series
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Page 318: ...Appendices A 54 CP1E CPU Unit Hardware User s Manual W479...
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