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1256E User Manual
Racal Instruments © 2002
3.
Select line 3 by pressing the third key. Rotate the knob until
line 3 reads as shown below:
-----SETTINGS-----
Type: Remote
> Option: Source
Status: RS-232
4.
Line 4 now indicates the remote interface source that is
active. The choices are TCP/IP (Ethernet), GPIB, and
RS-232. If the choice shown is not the desired one, then
rotate the knob until the correct choice is displayed:
-----SETTINGS-----
Type: Remote
Option: Source
<Update?: TCP/IP
Then update to this choice by pressing the fourth key. The
display now reads:
-----SETTINGS-----
Type: Remote
Option: Source
> Status: TCP/IP
Before using the remote interface, set the communication
parameters. See Chapter 4, COMPUTER INTERFACES.
Menu preferences are not normally retained after the
power is removed from the instrument. To make (a)
menu preference(s) permanent, make the desired
change(s) to settings first and then proceed to the
section Storing the Menu Preferences to make the
changes permanent. Following this procedure will put
the settings into non-volatile memory and allow them
to be restored during instrument power-up.
Local Lockout
In some applications, it may be desirable to lock out (disable) the
front-panel controls while controlling the 1256 via a remote
interface. The 1256 provides two types of local lockout:
•
Automatic lockout: When the 1256 receives any
command via the Ethernet, RS-232 or GPIB interfaces,
it shows a message on the front-panel display, stating
that the unit is in remote operation, and which interface
(TCP/IP, GPIB, or RS-232) is active. For example, after
receiving a command via the RS-232 interface, the
display reads:
*REMOTE OPERATION*
<
<
NOTE
Using the Front-Panel Controls 3-19
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