Remote Operation
The following sections detail the operation of the instrument via both GPIB and ARC. Where
operation is identical no distinction is made between the two. Where differences occur these are
detailed in the appropriate sections or in some cases separate sections for GPIB and ARC. It is
therefore only necessary to read the general sections and those sections specific to the interface
of interest.
Address and Baud Rate Selection
For successful operation each instrument connected to the ARC or GPIB must be assigned a
unique address and, in the case of ARC, all must be set to the same baud rate.
The instrument’s remote address for operation on both the ARC and GPIB interfaces is set via
the
remote
menu on the UTILITY screen, see System Operations section.
REMOTE SETUP
interface: RS232
◊
address: 05
◊
baud rate: 9600
With
interface
selected with the
interface
soft-key, the selection can be toggled between
RS232 and GPIB with alternate presses of the soft-key, the cursor keys or by using the rotary
control. If no GPIB interface is fitted an error message will show if GPIB selection is attempted
and the setting will be left at RS232.
With
address
selected, the soft-key, cursor keys or rotary control can be used to set the
address.
With
baud rate
selected, the soft-key, cursor keys or rotary control can be used to set the
baud rate for the RS232 interface.
When operating on the GPIB all device operations are performed through a single primary
address; no secondary addressing is used.
NOTE: GPIB address 31 is not allowed by the IEEE 488 standards but it is possible to select it as
an ARC address.
Remote/Local Operation
At power-on the instrument will be in the local state with the REMOTE lamp off. In this state all
keyboard operations are possible. When the instrument is addressed to listen and a command is
received the remote state will be entered and the REMOTE lamp will be turned on. In this state
the keyboard is locked out and remote commands only will be processed. The instrument may be
returned to the local state by pressing the LOCAL key; however, the effect of this action will
remain only until the instrument is addressed again or receives another character from the
interface, when the remote state will once again be entered.
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