Prosoft-technology MVI56E-LDM Manual do Utilizador descarregar pdf (Página 192)

CIP API Functions ControlLogix Platform ♦ "C" Programmable

Developer's Manual Linux Application Development Module

Page 186 of 264 ProSoft Technology, Inc.

March 12, 2014

OCXcip_GetLED3

Syntax

int OCXcip_GetLED3 (OCXHANDLE apihandle, int * ledstate);

Parameters

apihandle

handle returned by previous call to OCXcip_Open

ledstate

Pointer to a variable to receive err LED state

Description

OCXcip_GetLED3 allows an application to read the current state of the err LED.

apihandle must be a valid handle returned from OCXcip_Open.

ledstate must be a pointer to an integer variable. On successful return, the

variable is set to:

OCX_LED_STATE_RED,

OCX_LED_STATE_GREEN, or

OCX_LED_STATE_OFF

Return Value

OCX_SUCCESS

The LED was read successfully

OCX_ERR_NOACCESS

apihandle does not have access

Example

OCXHANDLE apiHandle;

int ledstate;

/* Read err LED state */

OCXcip_GetLED3 (apiHandle, &ledstate);

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Prosoft-technology MVI56E-LDM Manual do Utilizador Página 192