Rs-232-c – Yokogawa DR240 User Manual
Page 53
3-12
IM DR231-01E
3.4 Connecting the Interface Cables
RS-232-C
Communication Settings
Communication parameters are set using the three switches located on the RS-232-C modules.
1
2
3
4
Switch 1
Data length
Baud rate
1
2
3
4
Switch 2
Not used
Parity
Stop bit
1
2
3
4
Switch 3
Not used
Handshake format
ON
OFF
OFF
OFF
ON
ON
Switch 1 and No.4 of switch 2
Baudrate
dipswitch 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
←initial value
19200
ON
ON
ON
OFF
38400
OFF
OFF
OFF
ON
Data length
dipswitch No.4
7 bits
OFF
8 bits
ON
←initial value
Switch 2
Parity
dipswitch No.1
No.2
NONE
OFF
OFF
ODD
OFF
ON
EVEN
ON
OFF
←initial value
Stop bit
dipswitch No.3
1
OFF
←initial value
2
ON
Switch 3
Handshake format
dipswitch No.1
No.2
No.3
no handshake
OFF
OFF
OFF
←initial value
XON-DTR*
OFF
OFF
ON
XON-RTS*
OFF
ON
OFF
CTS-DTR
OFF
ON
ON
CTS-RTS
ON
OFF
OFF
*: When the baud rate is set to 38400, there is no handshake.