Prosoft-technology MVI56E-LDM Uživatelský manuál stáhnout pdf (Strana 202)

CIP API Functions ControlLogix Platform ♦ "C" Programmable

Developer's Manual Linux Application Development Module

Page 196 of 264 ProSoft Technology, Inc.

March 12, 2014

OCXcip_GetSwitchPosition

Syntax

int OCXcip_GetSwitchPosition (OCXHANDLE apihandle,

int * sw_pos);

Parameters

apihandle

handle returned by previous call to OCXcip_Open

sw_pos

Pointer to integer to receive switch state

Description

OCXcip_GetSwitchPosition retrieves the state of the 3-position switch on the front

panel of the module. The information is returned in the integer pointed to by

sw_pos.

apihandle must be a valid handle returned from OCXcip_Open.

If OCX_SUCCESS is returned, the integer pointed to by sw_pos is set to indicate the

state of the jumper in bit 0. A 1 indicates that the jumper is not installed, and a 0

indicates that the jumper is installed.

Return Value

OCX_SUCCESS

The jumper information was read successfully

OCX_ERR_NOACCESS

apihandle does not have access

Example

OCXHANDLE apiHandle;

int swpos;

/* Check switch position */

OCXcip_GetSwitchPosition (apiHandle, &swpos);

if (swpos & 0x01)

printf ("Setup Jumper is NOT installed\n");

else

printf ("Setup Jumper is installed\n");

1 2 ... 197 198 199 200 201 202 203 204 205 206 207 ... 263 264

Žádné komentáře

Prosoft-technology MVI56E-LDM Uživatelský manuál Strana 202