Triggering events in LabVIEW 7.0

I need to execute one of my event cases upon startup as an
initialization step. For example, I have 3 different cases that monitor
Boolean1, Boolean2 and Boolean3 Value Change events. I need to execute
the Boolean1 Value Change Event case upon startup. Is there a way to do
this? I've tried adding anothing event to that case (BooleanInit Value
Change) and programmatically setting that value to trigger the event but
to no avail.
Any help?

One solution is to change the value of the boolean by using the value(signaling) property. Unlike e.g. changing the value using a local this will trigger an event (events like this only trigger when there has been a user interface activity, that's why using a local won't work).
The other solution is to add your own user defined event and then set that event prior to doing anything else in the application. Check out the user event examples to see how you create and trigger such events.
MTO

Similar Messages

How to use postlv user event in labview

Hi sir
I am sending data labwindow cvi dll call to labview,for that we need postlv user event.please any one knows to use postlv user evenet in labview.
Below will be the structureand i need to update in labview .
typedef struct
unsigned
uDSPIO,
// uDAQMode,
// bControllerActive,
bShutDown,
bPowerOn,
bPowerHi,
bPowerFault,
bSGIdle,
bSGHold,
uBitsIn,
uBitsOut,
uCycleCount,
uCycResidue,
uBlockCount,
uLogChannels,
uCurrentMode,
uAsigndPhysCh[LOG_CHANNELS];
float
fSetPoint,
fDAQRate,
fRange[LOG_CHANNELS],
fReadout[LOG_CHANNELS],
fMax[LOG_CHANNELS],
fMin[LOG_CHANNELS];
char
sChID[LOG_CHANNELS][32],
sChUnits[LOG_CHANNELS][16];
CTRL_CHANNEL_STATUS;
Attachments:
GDSCallback.vi ‏12 KB

AThe fixed size arrays in your structure are inlined byt the C compiler. This means they are not an array pointer (and definitely never a LabVIEW array handle) but rather LOG_CHANNELS amount of unsigned ints and floats directly embedded in the structure. In LabVIEW terms this is most easily represented as a cluster with LOG_CHANNELS elements inside the main cluster.
So basically your uAsigndPhysCh needs to be a cluster with LOG_CHANNELS elements of unsigned ints and fRange, fReadout, fMax and fin are clusters with LOG_CHANNELS single precision float values, and then sChID is a cluster with 32 * LOG_CHANNELS chars and sChUnits one with 16 * LOG_CHANNELS chars.
However I would personally rethink this strategy. This huge cluster monster is passed into PostLVUserEvent() each time and copied into the event data on every event, causing quite a bit of overhead that way. Is it really necessary to post all this data every time?
Also you have commented out uDAQMode and bControllerActive in your C structure but included it in the LabVIEW cluster which will certainly throw off your data. Last but not least the b prefix would probably indicate that you are only using that element as a boolean value, so why not consider to use bit fields there? In LabVIEW you can easily seperate those bitfields by either translating the resulting uInt32 into a boolean array or even more efficiently use boolean logic to detect the bits.
And in order to let LabVIEW react on a user event you have to create that user event with the correct datatype (your cluster monster) and then pass the user event refnum to your DLL. This DLL then calls PostLVUserEvent() with the user event refnum as first parameter and a pointer to a data structure that matches the LabVIEW user event datatype EXACTLY whenever it wants to post an event to LabVIEW. The user event is also registered in an event structure in LabVIEW which will then get triggered everytime your DLL posts an event by correctly calling PostLVUserEvent().
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Events in Labview 7.0

Hi all.
Can anyone provide examples of how to create programmatic (generated by the
application rather than the user) events in Labview 7.0?
Any help much appreciated.
Tony

Here is a simple example (LabVIEW 7.0) for using a signaling property to fire an event.
The upper loop contains an event structure and one event is for a value change in an indicator (Yes, it does not need to be a control ). Under certain conditions in the lower loop, we write to a signaling property of the indicator instead of the indicator terminal and the event is triggered.
(Writing to a signaling property always triggers an associated value change event, even if the old an new values are the same.)
Message Edited by altenbach on 03-19-200608:55 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
SignalingEvents.png ‏10 KB
SignalingEvents.vi ‏36 KB

Regarding Workflow triggering event.

Hi,
Description: I have created a Object type and a event for the same by transaction SWO1, after that i have created a WorkFlow(WF) for which the triggering event is the event i have created in the Object Type. There is a report in which i have used the FM "SWE_EVENT_CREATE" and passed the Object Type, Event Name, Key field values and the creator.
Problem: When i am executing this report the FM is called and the sy-subrc after call is 0, stating that the call was succesfull, but the WF is not getting triggered when i went to transaction SWI2_FREQ to check this WF is not at all triggered. But when i tested from WF transaction SWDD it is working fine.
Could anyone please explain me on this. or is there any other way to use an event of a Object Type to trigger WF.
Thanks and Regards,
Raghavendra Goutham P.

hi gauthum,
try this chks.
Workflow Trace On/Off - SWU8
Display              - SWU9
Delete              - SWU10.
Work Item Analysis    - SWI1
Identifying workflow for the work Item :
Tx : SWI1 - Enter the workiem id which has been identified in workflow log
       The details consists of workflow of the workitem.
WorkFlow Errors :
1. Workflow Not Started           - Using Event Trace we can Identify
2. Started but No Proceeded           - Wrong Object Keys
3. Problem in Work Item Execution
     Dialog Work Item          - Agent Determinaion Error ( Position,Role,User )
                         - Role Resolution Error
                           Reqd Element would no be
                           Set in Binding
     Background Work Item      - Make Foreground and Test once Sucessfull make it Back round
rgds
nver
if hlped mark points

Work Flow - Triggering Event through Webdynpro

Hi,
I am new to Workflow. I have generated the Workflow related to claim (Objects as ABAP Class). Now I have generated Webdynpro component and through this I need to execute the Workflow. I have used the FM SAP_WAPI_START_WORKFLOW & SAP_WAPI_CREATE_EVENT. To raise the event 'cl_swf_evt_event=>raise'. I have used. But this is not triggering event. So, Any one can help me on this issue.
In workflow using ABAP CLASS is essential or Business object.
In my case I have used only ABAP CLASS. In workflow I have generated the Triggering event as SAVE. In webdynpro I have generated the code in 'ONACTIONSAVE'. When ever the user clicks SAVE' button. Workflow shouild trigger and approver should receive the mail as notification and he/she will approve/reject the claim.
Thanks & Regards
Kannappan

After SAP_WAPI_START_WORKFLOW do you have COMMIT WORK?
Does the SAP_WAPI_START_WORKFLOW return some error message?
Are you sure that the event is not triggered? Check this with event monitor SWEL (turn monitor on in SWELS).
Also, ready Jocelyn Dart's blogs about ABAP OO. She have clear instructions about how to trigger ABAP OO events.
Regards,
Karri

Triggering event from for-each

Hi,
I have a process that takes long to execute, I want to be
able to send a progress notification to the user with the hope of
not getting him bored or impatient, for some reason I can't achieve
it and I don't know where to go for help, if you know how to solve
this, any help will be greatly appreciated.
I have some code like this:
<code in mxml for my application>
- component declared .. onXEvent="showProgress()"
- script for showProgress calls refresh for ProgressBar
Component
</code in mxml for my application>
<code for my component>
for each (var myObject:xObject in MyCollectionOfMyObjects)
// do some complex logic and calls methods for this item
// creates and triggers event for progress notification
</code for my component>
I would expect to see my ProgressBar advancing as the process
is completed, but for some reason the process seems to take control
of the execution and no onProgressEvent is fired until the foreach
finishes execution. It will run perfectly in the debugger (step by
step) but it doesn't work at runtime.
Is there any way I can achieve this in Flex?? Is there any
event class I can use to solve this issue?
maybe anyone has done this before or knows a link to more
information on this subject?
Thanks in advance
William Vega
MCSD / Beginner Flex Developer

Flash functions execute within a frame. They finish before
any UI rendering is done. You will have to use callLater , somehow,
within your loop to give the UI a chance to draw.. There is a more
detailed answer to this thread somewhere else.
Tracy

How to use Mulitple DAQs with a single triggered event on only one of the DAQs

I have three PXI6115 and would like to tie all these to a single triggered event on one of the DAQs. I've scaned the examples and any assistance would be greatly appreciated....

TCjr,
Please refer to your other post:
How to use Multiple DAQs with a single triggered event on only one of the DAQs

VI containing Event Structure will not receive front panel events in LabVIEW Real-Time.

Hi again, I'm working in my first UI (attached VI).
It works when running directly from PC. It doesn't when running from cRIO, there's the message "VI containing Event Structure will not receive front panel events in LabVIEW Real-Time". I've been reading and I found that "Event structures on RT targets do not support events associated with user interface objects, such as VI panels or controls. For example, associating the Value Change event with a control does not work. RT targets support only user events".
Is that the problem? If it is, how can I create Mouse Up, Mouse Enter, Value Change (or other user interface events) user events?
If I run my VI in FPGA mode should it run?
Attachments:
HMI.vi ‏33 KB

Since it looks like you are new to the whole RT and machine control, I recommend giving this a good read: NI LabVIEW for CompactRIO Developer's Guide
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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Triggering event FMRE-CREATED in an infinite loop

Hi guys,
Iu2019m having a big problem in Public Sector Management with Founds Management Government when I create a Found reservation Tcode FMX1.
My problem is the triggering event FMRE-CREATED (event to start the Workflow) because when the document is created, this event is generated by the system which is fine, but inside on my Workflow I have a task to change the status with FMRE-SetLock, when this method is executed, automatically trigger an event FMRE-CREATED again, so my WF gets in a infinite loop.
How can I tell the system to donu2019t trigger this event when the status is changed?
Thanks a lot
Felipe Uribe.

Hi,
but inside on my Workflow I have a task to change the status with FMRE-SetLock, when this method is executed, automatically trigger an event FMRE-CREATED again, so my WF gets in a infinite loop.
How you changing the status? Check any Function Module or BAPI to change the status.
You have acheive it via Start Condition, check are you getting entry in the Table SWFREVTLOG for Creation.
If second time creating, check for the entry in the table, if found not allow it.
Regards,
Surjith

Issue in triggering events in task

Hi,
In my workflow there is a fork and after a fork there is a task for which triggering event is defined and this particular event is triggered from zprogram and agent for task is determined using a rule.
In zprogram logic is written as event (triggering event for task) is triggered when all 4 users in fork presses submit button.
Problem is when 4th user presses submit button workitem is created in workplace of agent defined for task and in 4th user as well.Workitem should not be created for 4th user.
Please suggest.
Regards,
Kaustubh.

Hi Rick,
I have defined single task in all branches of a fork with CONFIRM END OF PROCESSING tick in task. Task is to call ztransaction.
Problem is if all users in a fork enters into transaction and by clicking BACK comes out without pressing SUBMIT button in ztransaction and clicks COMPLETE WORK ITEM flow will go to task defined after fork which i dont want.
Flow should go to task after fork only when user presses SUBMIT and COMPLETE WORK ITEM button.
Hence I have created triggering event for task which gets triggered only after all user presses SUBMIT.
Please suggest.
Regards,
Kaustubh.

Multiple BIUs with one triggering event

Dear Experts,
I am trying to create a B1i scenario that does something similar to the following:
1. Journal Entry created in sender system by a user
2. Journal Entry created automatically in receiver system by B1i
This much works so far, my question is the next two steps
3. Another Journal entry created automatically by B1i in sender system
4. Finally another journal entry created by B1i in receiver system
So for one triggering event (manual adding of JE in sender) I want B1i to create 3 new documents - basically have 3 bius run from one triggerring event.
I've had a bit of a look around and haven't really found anything useful; is this easier than I am thinking or will there be some trick to it?
Thanks in advance,
njmog1

To be honest, I solved it in quite an ugly way..
First, I set it up so that B1i does not ignore the Events created when it creates a document (You can see more on that on page 9 of the guide 03. Extensibility)
Next I created a new transaction code in Business One journal entries called "B1i"
So basically I have 4 BIUs, the first one is triggered by an outgoing payment. and B1i creates a journal entry - and I set the memo to be something like "JE created by B1i Step 1".
For the second BIU, the filter is "Transaction Code equal to B1i and Memo = "JE Created by B1i Step 1" - this creates another JE, and I set its memo to be "JE created by B1i Step 2"
For the third BIU, the filter is "Transaction Code equal to B1i and Memo = "JE Created by B1i Step 2" - this creates another JE, and I set its memo to be "JE created by B1i Step 3"
etc. etc.
It's an ugly solution but I got it done quite quickly, If anyone has any suggestions to improve it, let me know! And if it's not clear to you, let me know what I need to clear up

Which container element contains the triggering event name?

hi,gurus,
i have a workflow template, and i want to use a 'switch' to deal with different triggering event inside the template logic.
but i can not find a element in the container which supposed to contain the triggering event name.
could you please help me ?
br.
zj

Hello,
The element which stores the name of triggering event is '_EVT_NAME' which is present in the event container. To use it in the workflow template, you have to create an element in the workflow container and bind this element to the above mentioned element through the binding for triggering event.
Thus you can use the workflow container element in the switch.
Hope this will help.
Regards,
Samson

Notification mail according to triggerring event in workflow

Hi All,
am doing customer master workflow using KNA1 Business object, it has event CREATE and CHANGE.
whenever event CREATE is triggering workflow, i want to send notification mail with title 'CUSTOMER 999 CREATED'.
whenever event CHANGE is triggering workflow, i want to send notification mail with title ' CUSTOMER 999 CHANGED'.
Could you please advise, how can i handle notification mail according to triggering event.
Thanks in advance.
Regards,
Balamurugan.

You can either trigger a 1 step workflow that has a send mail step. The triggering event of the Workflow should be CREATE and CHANGE event of BO KNA1. You have to activate the linkage between event and workflow in PFTC. You have to maintain some entries in SWE2.
After you have done this check your development from Tcode SWEL.
Thanks
Arghadip

Event structure react to programmatic events in Labview 7

I originaly thought, that Labview 7 would have the option to have the event structure react to programmatic changes. That's what I thought "dynamic" support would do. Instead, it doesn't seem to be the case. Is there a way to make an even structure react to a "programmatic event" in Labview 7?

You can do what you want, although your terminology is a little off. You can use the User-Defined Events which are new to LabVIEW 7.0 to create and generate programmatic events. There is a shipping example calling "Programmatically Fire Events." This is an example of User-Defined Evenst.
When you say "dynamic" events, you are probably referring to "dynamically registered" events. This is different. This means that you can register and unregister an event programmatically. Now, this can either be User-Defined events or just the user interface events which are available by default. The LabVIEW Zone currently has an article up by the developer who built these feature
s so I would suggest taking a look at that. It should help get you started on this. They're certainly a very powerful new tool, but also very advanced.
J.R. Allen

In Which table Will maintain the All Workflows Triggering Event Details?

Hi,
Can Any one tell me
In Which table Will maintain the All Workflows Triggering Event Details?

Hi Mohit,
The Tr Codes KE29N/KE28L will give me the Logs of Past TDD runs. However, i would like to see the all the variants in a go. Due to a Organizational change, there is a new characteristics introduced. Now we need to change the sequence of the TDD runs. Since there are lot of TDD Variants that are in use. we need to get all of them into an excel and then decide the necessary changes.
Thanks & Regards
Surya

Triggering events in LabVIEW 7.0

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