Eclipse Community Forums: 4DIAC - Framework for Distributed Industrial Automation and Control

Home » Eclipse Projects » 4DIAC - Framework for Distributed Industrial Automation and Control » ECC status change Hook executeEvent

Show: Today's Messages :: Show Polls :: Message Navigator

ECC status change Hook executeEvent [message #1821868]

Fri, 21 February 2020 12:07

joy woo

Messages: 198
Registered: May 2019

Senior Member

sometimes we have the problem that there are many statuses
in the custom FB, and we want to all the current status where meet the
condition then will route to one status(for example:Stopped),
we need do something at the beginning of the executeEvent, or the end of the excuteEvent. Which is very useful, otherwise the lines will be too many.

Report message to a moderator

Re: ECC status change Hook executeEvent [message #1821869 is a reply to message #1821868]

Fri, 21 February 2020 12:16

Martin Melik Merkumians

Messages: 117
Registered: March 2016

Senior Member

Hi,
that's currently outside the modelling methods of IEC 61499

Report message to a moderator

Re: ECC status change Hook executeEvent [message #1821879 is a reply to message #1821869]

Fri, 21 February 2020 14:45

Alois Zoitl

Messages: 1585
Registered: January 2014

Senior Member

What I found very helpfull is to have several algorithms to be used in one action. I think this is not what you wanted but it may help you.

Report message to a moderator

Re: ECC status change Hook executeEvent [message #1821882 is a reply to message #1821879]

Fri, 21 February 2020 15:26

joy woo

Messages: 198
Registered: May 2019

Senior Member

@Mr. Zoitl,
not exactly what i want ,
for example, i want the functionality as the bold lines:
once meet the condition, whatever status then route to Stopped status
now if there are 20 status, we have to connect each status to Stopped status 20 times. that makes the GUI difficult to view and check

void FORTE_LightCylinder::executeEvent(int pa_nEIID){
bool bTransitionCleared;
do{
bTransitionCleared = true;

if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();

//
switch(m_nECCState){
case scm_nStateSTART:
if((scm_nEventONID == pa_nEIID) && (((LScreen() == 1) && (Stop() == 0))))
enterStateForwarding();
else
if((scm_nEventREQID == pa_nEIID) && ((Stop() == 1)))
enterStateStop();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateForwarding:
if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();
else
if((LCLimit() == 1) && (LScreen() == 1))
enterStateLimit();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateLimitOperation:
if((scm_nEventOffID == pa_nEIID) && (((LScreen() == 1) && (Stop() == 0))))
enterStateBacking();
else
if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateBacking:
if((LCOrigin() == 1) && (((Automode() == 1) || (((Automode() == 0) && (Jog() == 1))))))
enterStateBackingLimit();
else
if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateBackingLimit:
if(1)
enterStateSTART();
else
if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateStop:
if(Stop() == 0)
enterStateSTART();
else
bTransitionCleared = false; //no transition cleared
break;
case scm_nStateLimit:
if((((Automode() == 1) || (((Automode() == 0) && (Jog() == 1))))) && (LScreen() == 1))
enterStateLimitOperation();
else
if((Stop() == 1) || (((Automode() == 0) && (Rst() == 1))))
enterStateStop();
else
bTransitionCleared = false; //no transition cleared
break;
default:
DEVLOG_ERROR("The state is not in the valid range! The state value is: %d. The max value can be: 6.", m_nECCState.operator TForteUInt16 ());
m_nECCState = 0; //0 is always the initial state
break;
}
pa_nEIID = cg_nInvalidEventID; // we have to clear the event after the first check in order to ensure correct behavior
}while(bTransitionCleared);
}

[Updated on: Fri, 21 February 2020 15:33]

Report message to a moderator

Re: ECC status change Hook executeEvent [message #1821918 is a reply to message #1821882]

Sat, 22 February 2020 21:57

Alois Zoitl

Messages: 1585
Registered: January 2014

Senior Member

Thanks for the clarification. Yes my suggestion is of no help in your case.

What would help in your case would be hierarchical state machines. Hierarchical state machines are currently not in the definitions of the standard. However we are discussing that in the standardization committee to expand the standard with them.

Report message to a moderator