WA-1100/WA-1600 Wavemeter Operating Manual
3 Remote Communications
08115-M-00 Rev E
3-1
3.
Remote Communications
This section discusses the use of remote communications to review and control the
instrument.
Overview
You can control the instrument remotely using either an RS-232 or a GPIB interface
using the SCPI communications scheme. Connections for both interfaces are provided on
the back of the instrument as shown later in this section.
You must use the instrument front panel controls to enable remote communications for
the specific type of interface. Refer to Table 2-4 in Section 2 of this manual for
information.
GPIB System Controller Settings
This section describes how to set up your GPIB system controller for proper message
termination and bus timing to communicate with the WA-1100 or WA-1600. Other
settings may also work, but these are the settings that we’ve found to work the best.
Set EOI at End of Write = Yes
This causes the system controller to assert the EOI signal during the last byte of a
message written to the instrument.
Set EOI With EOS on Write = No
The system controller should not assert the EOI signal when it writes an EOS character.
The system controller should instead assert the EOI signal when sending the last byte of
the message (which will be an EOS character anyway).
EOS Byte = 10
The instrument uses a linefeed character (10, 0x0a, or \n) to identify the end of a
message.
8-Bit EOS Compare = Yes
This causes the system controller to examine all eight bits of a received character to
determine if it is an EOS character.
Terminate Read on EOS = Yes
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