Prosoft-technology MVI69-ADM Manual de usuario descargar pdf (Pagina 288)

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CIP Messaging Library Functions MVI-ADM ♦ 'C' Programmable

Developer's Guide 'C' Programmable Application Development Module

Page 288 of 342 ProSoft Technology, Inc.

February 20, 2013

resetrequest_proc

Syntax

MVICALLBACK resetrequest_proc( );

Parameters

None

Description

resetrequest_proc is an optional callback function which may be passed to the

CIP API in the MVIcip_RegisterResetReqRtn call. If the resetrequest_proc

callback has been registered, it will be called if the backplane device driver

receives a module reset request (Identity Object reset service). This allows the

application an opportunity to take appropriate actions to prepare for the reset, or

to refuse the reset.

Return Value

MVI_SUCCESS

the module will reset upon return from the callback

MVI_ERR_INVALID

the module will not be reset and will continue normal operation

Example

MVIHANDLE Handle;

MVICALLBACK resetrequest_proc( void )

{

// Take whatever action is appropriate for the application:

// - Set local I/O to safe state

// - Perform orderly shutdown

// - Reset special hardware

// - Refuse the reset

return(MVI_SUCCESS); // allow the reset

}

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