Programming instructions

Intermec Fingerprint 6.13 – Programmer's Guide

5. Output to

Communication

Channels

8. OUTPUT FROM FINGERPRINT, cont'd.

Output from a Fingerprint program can be directed to any serial

communication channel OPENed for sequential OUTPUT follow-

ing the same principles as for output to files (see chapter 8.3).

Note that in this case, the parallel communication channel

"centronics:" cannot be used (one-way communication only).

The communication channels are specified by name as follows:

• "uart1:" • "uart2:" • "uart3:"

A special case is communication via the RS 422/485 interface

board, where the communication channel "uart2:" is specified as

"rs485:[n]" or "prel:[n;]rs485:" (also see chapter 7.9).

The following instructions are used in connection with output to a

communication channel:

OPEN Opens a serial communication channel

for sequential output.

PRINT# Prints data entered as numeric or string

expressions to the selected channel.

PRINTONE# Prints data entered as ASCII values to the

selected channel.

CLOSE Closes an OPENed channel.

LOC Returns the remaining number of free

bytes in the transmitter buffer of the se-

lected communication channel.

LOF Returns the remaining numbers of char-

acters to be transmitted from the transmit-

ter buffer is returned.

COPY Copies a file to a communication channel.

Example 1 (prints the records “Record 1” and “Record 2” to the

serial communication channel "uart3:"):

10 OPEN "uart3:" for OUTPUT AS #1

20 PRINT #1, "Record 1"

30 PRINTONE #1, 82;101;99;111;114;100;32;50

40 CLOSE #1

Example (prints the file "datafile" in a DOS-formatted memory

card to the serial communication channel "uart2:"):

COPY "card1:datafile","uart2:"

The only device, other than the serial communication channels, that

can be OPENed to receive output from a Fingerprint program, is the

printer's LCD display ("console:"). This is explained in chapter 15.2

together with other methods for controlling the display.

6. Output to Display