Microscan MS-4 Uživatelský manuál stáhnout pdf (Strana 342)

A-10 MS-4 Imager User’s Manual

Communication Protocol Commands

Serial Command Format

Serial commands are of two types: utility and configuration.

Rules that apply to both utility and configuration commands

• A less than < and greater than > character enclose the commands.

• Commands and data are “case sensitive.” That is, characters must be entered as upper

or lower case, as specified.

Serial Utility Commands

These are sent during operations and are not followed by <A> or <Z>.

Serial Configuration “K” Commands

These begin with a single “K” character followed by a 3-digit numeric character, data

fields, and an initializing command, as follows:

An initializing command <A> or <Z> may follow the command. A <Z> initializes the

Imager’s memory and saves for power-on; an <A> initializes the Imager’s memory but

does not save for power-on.

For example, to enable UPC and save the change for power-on, send <K473,1><Z>.

To change Baud Rate and reset without saving changes for power-on, send

<K100,3><A>.

Serial Configuration Command Conventions

• All data fields (except the last) must be followed by a comma (without a space).

• NUL cannot be used. The characters <, >, and

, can be used, but only if entered as hex

pairs (see ASCII Character Entry Modifier on page 3-32).

• All fields preceding a modified field must be included.

• If there is no change in preceding fields, then commas alone can be entered in these

fields. For example, if only the last field in the following command is changing,

<K100,4,1,0,0> can be entered as <K100,,,,0>.

• All fields following a modified field can be omitted. For example, to change Baud Rate

only, send <K100,3>.

Concatenating Configuration Commands

Commands can be concatenated (added together) in a single string or data block. For

example, <K145,1><K220,1><K450,1><A> enables LRC, sets End of Read Cycle mode

to New Trigger, enables Narrow Margins, and resets the data buffers (without saving the

changes for power-on).

Serial Command Status Request

To ensure that any command was received and accepted, you can send the Show Reader

Status command: <?>.

The status of a specific serial command can be requested by entering the command followed

by a question mark. For example, send

<K142?>

to request the status of

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