Chapter 3
Installing and Configuring Your Controller
3-4
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Note
The numbers 1–8 do not appear on the box. They are included in these illustrations
as a reference aid.
Figure 3-1.
Default Setting (S Mode) for DIP Switch
In Figure 3-1, switch 8 is set to S mode, so the labels on top of the switch
apply. Switches 1 through 3 are ON, OFF, and ON, respectively, indicating
that the serial port is operating at 9600 baud. Switches 4 and 5 are both
OFF, which indicates that parity is disabled. Switch 6 is OFF,
indicating 1 stop bit/character. Switch 7 is OFF, indicating that the
GPIB-232/485CT-A is using 7 bits per character for serial data transfers.
Tables 3-2 and 3-3 show the possible configurations for the baud rate and
data format switches when you are using S mode and what each
configuration indicates. Default settings are in bold.
Table 3-2.
S Mode Switch Settings for Serial Port Baud Rate
Switches
Indication
1
2
3
OFF
OFF
OFF
300 baud
ON
OFF
OFF
600 baud
OFF
ON
OFF
1200 baud
ON
ON
OFF
2400 baud
OFF
OFF
ON
4800 baud
ON
OFF
ON
9600 baud
OFF
ON
ON
19200 baud
ON
ON
ON
38400 baud
1 2 3 4 5 6 7 8 ON
OFF
S MODE
DATA FORMAT
BAUD RATE
GPIB ADDRESS
G MODE
