Rockwell-automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User M Manual de usuario descargar pdf (Pagina 114)

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7-6

/*****************************************************************************

* b a r c o d e . c Bar Code Reader Interface Program

******************************************************************************

* LANGUAGE: Microware C, using PCBridge release 1.4 or later

******************************************************************************

* TARGET SYSTEM AND VERSION:

******************************************************************************

* OS-9/68000 release 2.4 or later, on Allen-Bradley Control Coprocessor

* with Ethernet and Internet Support Package (ISP)

******************************************************************************

* REVISION LOG:

******************************************************************************

* Date By Description

* ----------- ----- ------------------------------------------------------

* 31-JUL-92 DER Initial issue for User’s Manual Example

******************************************************************************

* REFERENCES:

******************************************************************************

* Data Structures: see C:\OS9C\DEFS\*.h

* see #include directives below for list

* Source File: see C:\OS9C\EXAMPLES\barcode.c

* Linking Libraries: see C:\OS9C\LIB\libs for list

* Compile Commands: see C:\PCBRIDGE\pcbcc.bat

* “$ pcbcc barcode.c”, then

* use PCBridge to move executable

* module to Copro execution directory

* Executable Files: see C:\OS9C\EXAMPLES\barcode

* User’s Manuals: see Allen-Bradley Publication 1771-6.5.95,

* “1771 Control Coprocessor User Manual”,

* and various Microware user’s manuals

*******************************************************************************

* USAGE:

******************************************************************************

* The user runs this example program from the OS-9 shell prompt ($). This program

* displays the barcode read, then passes control to a user-developed subroutine

* for handling the decision-making part of the process. A simple example is

* provided. A typical barcode application sets up data in data modules upon a

* successful read, rather than printing to the screen. Modify the code here by

* eliminating the “printf()” calls and adding calls to link to a data module or

* write to a RAM-disk file using your barcode data.

* EXAMPLES:

* $ barcode <cr>

* Waiting for a read...

* Tag: ST0ZZ9ZZ read...

* This is a Twinsburg product.

* Waiting for a read...

* Tag: SD1ZZ9ZZ read...

* This is a Dublin product.

* Waiting for a read... <ctrl><E> Error 000:002

******************************************************************************

* INPUTS:

******************************************************************************

* port “/t2”: receive barcode reader characters. This program is set

* up for a reader that just sends the barcode characters followed by

* a carriage return. IT DOES NOT HANDLE STANDARD BARCODE READER PROTOCOLS

******************************************************************************

* OUTPUTS:

******************************************************************************

* Screen messages as in example above.

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 311 312

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