Chapter Six: RS-232 Communications Option
General Information
85
Chapter Six: RS-232 Communications Option
General Information
Note
The information in this chapter only applies if your 670 instrument is
configured with the RS-232 Communications option. If your 670
instrument is configured with the IEEE-488 communication option, refer
to Chapter Seven, IEEE-488 Communications Option, page 103, for
remote communications information.
To configure the 670 instrument to accept commands issued through serial communications,
place the Key Lock switch, located on the front panel, in the
REMOTE
position. While
operating the 670 instrument in the
REMOTE
mode, the front panel controls are locked out and
the display shows status information only. The 670 instrument expects to receive commands and
instructions through the serial port or the rear panel connectors. When the Key Lock switch is in
the
LOCAL
position, the 670 instrument behaves in the opposite manner — it accepts
commands from the front panel only and ignores commands issued by serial communications.
Only status information is available through serial communications.
Figure 6, page 31, shows the location of the Key Lock switch.
Communication Parameters
The RS-232 communication parameters are accessed from the [
SETUP
] key. Initially, the 670
instrument is configured at 9600 Baud, 8 Data Bits, and No Parity. Table 19 lists the setting for
all the communication parameters.
RS-232 Communication Parameters
Parameter
Options
Page Reference
Baud Rate*
300, 1200, 2400, 4800, 9600†
53
Number of Data Bits*
7, 8†
53
Parity*
Even, Odd, No†
53
Stop Bits
1
Cannot be changed
End-of-Line delimiter
CR
Cannot be changed
* denotes user selectable
† indicates the initial setting
Table 19: RS-232 Communication Parameters
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