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4.3.3 Warnings and Errors
As mentioned in section 4.3.1 set commands are responded to with either
a “$” (dollar sign) character or a 1 or 2 character long ASCII format
numeric code that can be an error or a warning.
- A response of a $ character indicates successful reception and
processing of the sent value. The value sent in the command
has been accepted and is now the active value that will be used
by the system.
- A response of an ASCII encoded number 3 -9 indicates a
parameter error. This means one or more of the values sent in
the command is invalid, or out of range. The value(s) in the
command are ignored and the old values that the system is set
for remain in effect. Some of the “Set” commands only set a
single value. For these commands an error code of 3 indicates
an invalid or out of range parameter. This is the only possible
error for these functions. Some functions, such as the “Set
Exposure” function use multiple error codes. For these
commands the meaning of the error codes is dependent on the
particular command. See the individual command for a list of
possible error codes and their meaning.
- A response of an ASCII “10” (2 characters) indicates a warning.
This is a possible response for commands that modify exposure
settings. It indicates that the parameter in the command is in
range, but when combined with the other current supply settings
results in an invalid set up. The new value has been accepted
but the supply is now in an “invalid programming” condition.
The high voltage will not turn on if commanded. If the intent of
the user is to send additional commands to complete the
change of exposure settings this warning can be safely ignored.
If the user’s intent is to start an exposure without further
changes to the exposure settings however, It indicates a
problem. The user must resolve the setup problem before an
exposure can begin.
