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:Name: Field Usage (Optional)
This command returns the query information from the scan engine.
Tag Field Usage
When a query is used in place of a Tag field, the query applies to the entire set of commands available for the particular
storage table indicated by the Storage field of the command. In this case, the SubTag and Data fields should not be used
because they are ignored by the device.
SubTag Field Usage
When a query is used in place of a SubTag field, the query applies only to the subset of commands available that match the
Tag field. In this case, the Data field should not be used because it is ignored by the device.
Data Field Usage
When a query is used in place of the Data field, the query applies only to the specific command identified by the Tag and
SubTag fields.
Concatenation of Multiple Commands
Multiple commands can be issued within one Prefix/Storage sequence. Only the Tag, SubTag, and Data fields must be
repeated for each command in the sequence. If additional commands are to be applied to the same Tag, then the new com-
mand sequence is separated with a comma (,) and only the SubTag and Data fields of the additional command are issued.
If the additional command requires a different Tag field, the command is separated from previous commands by a semico-
lon (;).
Responses
The device responds to serial commands with one of three responses:
ACK Indicates a good command which has been processed.
ENQ Indicates an invalid Tag or SubTag command.
NAK Indicates the command was good, but the Data field entry was out of the allowable range for this Tag and SubTag
combination, e.g., an entry for a minimum message length of 100 when the field will only accept 2 characters.
When responding, the device echoes back the command sequence with the status character inserted directly before each
of the punctuation marks (the period, exclamation point, comma, or semicolon) in the command.
Examples of Query Commands
In the following examples, a bracketed notation [ ] depicts a non-displayable response.
Example:
What is the range of possible values for Codabar Coding Enable?
Enter:
cbrena*.
Response: CBRENA0-1[ACK]
This response indicates that Codabar Coding Enable (CBRENA) has a range of values from 0 to 1 (off and on).
Example:
What is the default value for Codabar Coding Enable?
Enter:
cbrena^.
Response: CBRENA1[ACK]
This response indicates that the default setting for Codabar Coding Enable (CBRENA) is 1, or on.
What is the device's current setting for Codabar Coding Enable?
Example:
Enter:
cbrena?.
Response: CBRENA1[ACK]
This response indicates that the device's Codabar Coding Enable (CBRENA) is set to 1, or on.
What are the device's settings for all Codabar selections?
Example:
Enter:
cbr?.
Response: CBRENA1[ACK],
SSX0[ACK],
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