Remote Control
Tunable Laser Source
61
GPIB Troubleshooting
GPIB Troubleshooting
Problem
Probable Cause
Solution
Unable to
communicate with
IQ-203 (No response
from *IDN?
command).
SCPI Manager is not
open.
Open SCPI Manager.
Incorrect
communication type
selected.
Select the correct
communication type:
RS-232, GPIB, or DDE.
Incorrect
communication
parameters.
Check the
communication
parameters: bus address,
Baud rate, flow control,
etc., as required.
Incorrect termination
characters.
Synchronize termination
characters between the
GPIB controller and the
SCPI Manager.
Poor bus connection.
Ensure the functioning of
the controller card and
make sure that the bus
cable is properly
connected.
Improper configuration. Verify that the GPIB
interface (IQ settings-
Config) is properly
configured.
Receive “Undefined
header” error.
Missing module address
from command.
Ensure that the module
address is incorporated
in the command.
Table 4-4.
Troubleshooting (Part 1 of 2)
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