FC_Open_ReadFile

 

FC_Open_ReadFile - General Information

Overview

Task

Open the file for reading. The file is opened only with reading rights.

Description

This function opens a file i_sFilename for read access.

The standard device is "ide0:". i_sFilename can be a short standard name or a complex name. A default name consists of one to eight characters (A ... Z, 0 ... 9). The device name "ide0:" and the file name extension ".dat" are appended by the system. A complex name consists of device name, file name, and file name extension.

NOTE: The operating system on the PacDrive III controller allows opening a file multiple times at the same time. No diagnostic message is generated.

NOTE: The processing time of this function is a few hundred milliseconds. This is why the times for the cycle check of the task in which this function is performed should be increased one-time. For example FC_CycleCheckTimeSet(500, 2).

Interface

Return Value