Prosoft-technology MVI69-ADM Bedienungsanleitung Seite 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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