Honeywell 1900GHD-2, Руководство пользователя

Страница: 239 / 314

11 - 3
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.
Example: What is the device’s current setting for Codabar Coding Enable?
Enter: cbrena?.
Response: CBRENA1[ACK]
This response indicates that the device’s Codabar Coding Enable (CBRENA) is
set to 1, or on.
Example: What are the device’s settings for all Codabar selections?
Enter: cbr?.
Response: CBRENA1[ACK],
SSX0[ACK],
CK20[ACK],
CCT1[ACK],
MIN2[ACK],