Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario descargar pdf (Pagina 90)

6–36 Library of Routines OC_GetStatusFile

Publication 1747-6.5.3 June 1998

OC_GetStatusFile OC_GetStatusFile reads a copy of the current scanner system status file into the

STSFILE structure pointed to by stsfil on the scanner.

Syntax:

int OC_GetStatusFile(HANDLE handle, STSFILE *stsfil);

Parameters:

Description:

The status file is updated by the scanner at the end of each I/O scan.

The

STSFILE structure is defined as:

typedef struct tagSTSFILE

{

WORD wWordNum[OCSTSFILEWSIZE];

} STSFILE;

The status file is organized by words. The status file uses these classifications to define the data each word

contains:

The status file contains:

Parameter: Description:

handle

Must be a valid handle returned from OC_OpenScanner

stsfil

Points to the STSFILE structure that contains scanner system status

This classification: Means the data:

status

is used primarily to monitor scanner options or status. This

information is usually not written by the application, except to

clear a function such as a minor error bit.

dynamic configuration

can be written by application to select scanner options while

in Scan mode.

Word/Bit: Classification: Description:

0/0 to 0/4 status

Scanner mode/status

bit 4 bit 3 bit 2bit 1bit 0

1 0 000= (16) download in progress

1 0 001= (17) Idle mode (program)

1 1 110= (30) Scan mode (run)

All other values for bits 0-4 are reserved.

0/5 status

Forces enabled bit

This bit is set if forces have been enabled.

1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 154 155

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Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario Pagina 90