6 rs-232-c interface parameter setting procedure – Yokogawa DR240 User Manual
Page 19
2-9
IM DR231-11E
Overview and Specifications of RS-232-C Interface
2
2.6
RS-232-C Interface Parameter Setting Procedure
Setting of the RS-232-C parameters must be carried out using the 3 dipswitches located next to the
module connector.
1
2
3
4
Parameter setting
switch 1
Data length
Baud rate
1
2
3
4
Parameter setting
switch 2
Baud rate
Parity
Stop bit
1
2
3
4
Parameter setting
switch 3
Not use
Handshake system
ON
OFF
OFF
OFF
ON
ON
Baud rate (No.1 to 3 of setting switch 1 and No.4 of setting switch 2)
Baud rate
No.1
No.2
No.3
No.4 (switch 2)
150
OFF
OFF
OFF
OFF
300
OFF
OFF
ON
OFF
600
OFF
ON
OFF
OFF
1200
OFF
ON
ON
OFF
2400
ON
OFF
OFF
OFF
4800
ON
OFF
ON
OFF
9600
ON
ON
OFF
OFF
←
Default
19200
ON
ON
ON
OFF
38400
OFF
OFF
OFF
ON
Data length (Switch No.4 of parameter setting switch 1)
Data length
No.4
7
OFF
8
ON
←
Default
Parity (Switch No.1 and 2 of parameter setting switch 2)
Parity
No.1
No.2
NONE
OFF
OFF
ODD
OFF
ON
EVEN
ON
OFF
←
Default
Stop bit (Switch No.3 of parameter setting switch 2)
Stop bit
No.4
1
OFF
←
Default
2
ON
Handshake system (Switch No.1 to 3 of parameter setting switch 3)
Handshake system
No.1
No.2
No.3
No handshake
OFF
OFF
OFF
←
Default
XON-ER*
OFF
OFF
ON
XON-RS*
OFF
ON
OFF
CS-ER
OFF
ON
ON
CS-RS
ON
OFF
OFF
* When the baud rate is set to 38400, there is no handshaking.