Transferfunction as a plant process control parameter

Hello,
Below attached is a pid controller.In that I used a sub VI of a tranferfunction for control.But there showing some errors.Can anyone plz suggest the input and output of that sub VI.Can we make it as a working one.plz help.
Thanks as kudos only
Attachments:
controlsystemdesign.vi ‏58 KB

I have searched a bit and I dont think you can.
But why do you need that? you can configure the transfer function subvi itself according to your system needs.
If there are too many feedforward/ feedback loops just create the block diagrams adding/subtrating transfer function wherever necessary.
I found these links helpful
https://decibel.ni.com/content/docs/DOC-20631
http://zone.ni.com/devzone/cda/tut/p/id/6931
this is a bit detailed, just see the pid part
http://home.hit.no/~hansha/documents/labview/training/Control%20and%20Simulation%20in%20LabVIEW/Cont...

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cDispatcher_k1mrl8_EOImpl.java:100)
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at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
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n.java:1530)
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cDispatcher_k1mrl8_EOImpl.java:100)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:353)
... 65 more

Some additional information:
The problem seems to be related to a custom object that I am passing to the exposed
clientRequest(String, CustomObj) method in the process control. If I remove the
CustomObj parameter, all works fine. Unfortunately, I need to pass that object
to the workflow. I have the CustomObj define within my project "Project/com/omeninc/package/CustomObj",
my process file located at "Project/processes/customerNeed/SubmitNeed.jpd" and
my pageflow define at "Project/pageFlows/customerNeed/customerNeedController.jpf".
The entire project builds without error, but when I run it I get the ClassCastException.
Thanks in advance for any assistance!!
<Dec 9, 2003 9:39:59 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeed_wf.$__clientRequest(); Failure=java.lang.ClassCastException
[ServiceException]>
<Dec 9, 2003 9:39:59 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeedControl.clientRequest(); Failure=com.bea.cont
rol.ProcessControlException: [WLI-Core:530214]ProcessControl invocation failed[null]>
[IDSSPortal] Unhandled exception caught in Global.app:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
"Jim Anzaldi" <[email protected]> wrote:
>
I create a simple pageflow that invokes a process control (jpd file)
to start a
business process. I created a process control from the jpd and added
it as a control
to the pageflow. I can run the process indepedently in the test harness,
but cannot
invoke from my pageflow.
Any ideas what what could be wrong?
When I invoke a method on the process control I get the following in
the test
browser:
An error has occurred:
EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation
failed[null]
caused by: : com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
In the server console I have the following exceptions:
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level;
Metho
d=processes.customerNeed.SubmitNeed_wf.$__clientRequest(); Failure=java.lang.Cla
ssCastException [ServiceException]>
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level;
Metho
d=processes.customerNeed.SubmitNeedControl.clientRequest(); Failure=com.bea.cont
rol.ProcessControlException: [WLI-Core:530214]ProcessControl invocation
failed[n
ull]>
[IDSSPortal] Unhandled exception caught in Global.app:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
at weblogic.ejb20.internal.EJBRuntimeUtils.throwRemoteException(EJBRunti
meUtils.java:103)
at weblogic.ejb20.internal.BaseEJBHome.handleSystemException(BaseEJBHome
.java:295)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
53)
at weblogic.ejb20.internal.StatelessEJBObject.postInvoke(StatelessEJBObj
ect.java:141)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:110)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.dispatcher.WlwProxyImpl.invoke(WlwProxyImpl.
java:240)
at $Proxy8.clientRequest(Unknown Source)
at pageFlows.customerNeed.customerNeedController.submitNeed(customerNeed
Controller.jpf:128)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.netui.pageflow.FlowController.invokeActionMethod(FlowCont
roller.java:1262)
at com.bea.wlw.netui.pageflow.FlowController.getActionMethodForward(Flow
Controller.java:1214)
at com.bea.wlw.netui.pageflow.FlowController.execute(FlowController.java
:650)
at com.bea.wlw.netui.pageflow.PageFlowController.execute(PageFlowControl
ler.java:278)
at org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:274)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowR
equestProcessor.java:429)
at com.bea.wlw.netui.pageflow.DynamicSubappActionServlet.process(Dynamic
SubappActionServlet.java:405)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:520)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run
(ServletStubImpl.java:1053)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:387)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilte
r.java:313)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio
n.run(WebAppServletContext.java:6316)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate
dSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:
118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
rvletContext.java:3622)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2569)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessCont
rol invocation failed[null]
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:369)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:359)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.jcs.container.JcsContainer.invoke(JcsContainer.ja
va:85)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.SLSBContainerBean.invoke(SLSBContainerB
ean.java:103)
at com.bea.wlwgen.SubmitNeedControlSLSBContImpl.clientRequest(SubmitNeed
ControlSLSBContImpl.java:25)
at com.bea.wlwgen.StatelessContainer_a0ubma_ELOImpl.clientRequest(Statel
essContainer_a0ubma_ELOImpl.java:423)
at com.bea.wlwgen.SubmitNeedControlSLSBContAdpt.invokeOnBean(SubmitNeedC
ontrolSLSBContAdpt.java:62)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
... 32 more
Caused by: java.lang.ClassCastException [ServiceException]
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:379)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.BMPContainerBean.invoke(BMPContainerBea
n.java:1530)
at com.bea.wlwgen.SubmitNeedBMPContImpl.clientRequest(SubmitNeedBMPContI
mpl.java:25)
at com.bea.wlwgen.PersistentContainer_cfepz3_ELOImpl.clientRequest(Persi
stentContainer_cfepz3_ELOImpl.java:207)
at com.bea.wlwgen.SubmitNeedBMPContAdpt.invokeOnBean(SubmitNeedBMPContAd
pt.java:80)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.call.JavaCall.invoke(JavaCall.java:57)
at com.bea.wli.bpm.runtime.SubFlowCall.invoke(SubFlowCall.java:42)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:873)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:421)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:754)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:359)
... 46 more
Caused by: java.lang.ClassCastException
at processes.customerNeed.SubmitNeed_wf.$__clientRequest(SubmitNeed_wf.j
ava:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:353)
... 65 more

Chemical plant process mapping

Hi gurus
Which mapping senario to be selected for the Soda ash manufacturing plant. Is it REM OR PP-PI.
What are the merits and demerits of the above .
Best wishes
Murali

Hi Daram,
PPPI - Production planning in process industry.
It is one of the production process,where in the product is produced and controled by a DCS or one of the process controlling system, Which can be directly intergated to SAP system.
Here many level of process approvals required example ...shift operateor is given the instuction in SAP PI sheet and he does the production booking,,,which will be approved by shift incharge and then psoted to invenory, same way quality of the product also can be approved....
In the chemical industry, you coordinate the communication between PP-PI and process control during the execution of a process order.
So some process contorl activity are there so better you should go with PP-PI.
Hope it is now clear to you.
Regards
R.Brahmankar

Language selection in Process control

Hi
We have an issue where end user is facing language with Process control potal it is showing them the language what is defined in the Internet option.I want to know is their any alternate where we can maintain the language option apart from internet options so that it can be the default language for the end user.
Regards,

Hi Pradeep,
There is no specific setting only for Process Control. However, if you want to change the default login language for all the users for the specific system, maintain the Default Profile parameter "login/system_language" in T-Code RZ10. But if you want to maintain the login language for a specific user, then change the default language for the user in SU01->Defaults tab->Maintain the language in Logon language field. Else ask the enduser to login to the system, then from the top menu choose system->User Profile->Own data. Switch to default tab. In logon language option put the language he/she requires. Save and log off. From the next logon onwards the set language would be his default login language. No need to change the language every time in internet explorer. Remember that the settings is not GRC Process control specific but also for all the sap application through out the system.
please note that this is the way to put default language for GRC PCRM 10.0 & 3.0 (if your user source is ABAP). If you are using PC 3.0 and your user source is Portal then change the language for the user in identity management in portal. Hope this helps. Revert back if you require further clarification.
Thanks,
Guru

Control parameter

hi
sap guru
can u plz explain me what is the control parameter for purchase order,pr,info record,

Hi,
Your question is not so clear,
PR's and POs are Purchasing Documents..
Purchase info records and Source lists are the Master data which can facilitate/default the values for easy and quick process of PO Creation.
With out IR,SL also PR can be created and those PR's can be converted to PO.
Thanks,
Kumar Arcot

Issue in Process Controlled workflow for Shopping cart in Quality system.

Hello All,
I ahve configured a Process controlled workflow in SRM 7.0 with custom resolver, and I am facing an issue taht the Workflow works well in Development but in Quality the approvers are dropped after SC is ordered in Quality system.
The SC Workflow drops the approvers picked up from the Interface method /SAPSRM/IF_EX_WF_RESP_RESOLVERGET_AREA_TO_ITEM_MAP and IF_EX_WF_RESP_RESOLVERGET_APPROVERS_BY_AREA_GUID of BADI /SAPSRM/BD_WF_RESP_RESOLVER. The approvers can be seen in the shopping cart Approval preview Tab until the SC is ordered.
I have compared the OSS notes relevant for Workflow, all of them have been transported, Also I compared and checked general Workflow settings, BRF Config and Process level settings in Dev and Quality, everything is same.
Also while debugging; the approvers can be seen in the decision set table in the create_process_forecast method of class /SAPSRM/CL_WF_PROCESS_MANAGER.
Kindly let me know what else i can check to find the root cause.
Thank you in advance for help!
Regards
Prasuna.

Hello Vinita;
Thanks for the input and sorry for the not so "ASAP" reply;
From what I'm seeing in from your 2 screenshot, i strongly believe that the problem is even before the Z implementation /SAPSRM/IF_EX_WF_RESP_RESOLVER~GET_APPROVERS_BY_AREA_GUID (in which the FM i ZSRM_GET_USER_FROM_PGRP is called. I think the problem could be in the process level determination ZSRM_WF_BRF_0EXP000_SC_APP100. Let me explain:
In your cases where not buyer is determined, in the approval tab there is not even a process level for buyer approval. If the problem were indeed in the implementation /SAPSRM/IF_EX_WF_RESP_RESOLVER~GET_APPROVERS_BY_AREA_GUID then the process level would be there, but the system will display, instead of the name of the buyer(if the buyer determination fails) a red label with the message: "With the strategy "Buyer determination" an approver could not be determined (or something like that..please check the image at the end of the text)".
I can propose a way to discard this: Implement the method /SAPSRM/IF_EX_WF_RESP_RESOLVER~GET_FALLBACK_AGENTS of class ZCL_BADI_SC_WC (in case you didn't know, in this method you can specify an "default" approver in case that the determination of approver in GET_APPROVERS_BY_AREA_GUID fails). The idea is to specify an default approval and see how it behaves:
If the user you indicated in the method GET_FALLBACK_AGENTS appears as approver, then yes, the problem is arises from implementation GET_APPROVERS_BY_AREA_GUID, in which case it could be a data problem (peharps in pposa_bbp?). You could also check in TX SU53 with the users with this problem to see if there's a missing authorization objetc.
If, in the other hand, the "default" approver is not shown, it means that the process level buyer determination is not even called, so you should check in more detail ZSRM_WF_BRF_0EXP000_SC_APP100 and /SAPSRM/CL_WF_PROCESS_MANAGER > Determine process restart –method ----- (i have never used this method, so i could not tell if it could be the source of the problem).
Also, you could implement the method GET_FALLBACK_AGENTS in this way so the default approver would be the WF administrator indicated in the customizing (or you could just append directly any user you want):
METHOD /SAPSRM/IF_EX_WF_RESP_RESOLVER~GET_FALLBACK_AGENTS.
   DATA: lv_admin_expr TYPE swd_shead-admin_expr,
         lv_admin      TYPE swd_shead-wfi_admin,
         lv_admin_type TYPE sy-input,
         ls_agent      TYPE /sapsrm/s_wf_approver.
   CALL FUNCTION 'SWD_WF_DEFINITION_ADMIN_GET'
     IMPORTING
       default_admin_expr = lv_admin_expr
       default_admin      = lv_admin
       default_admin_type = lv_admin_type.
   ls_agent-approver_id = lv_admin.
   APPEND ls_agent TO rt_agent.
ENDMETHOD.
Error of agent determination:
Please let me know the result of the test with the implementation of method GET_FALLBACK_AGENT. By doing this we could ensure if really the problem is in method GET_APPROVERS_BY_AREA_GUID or before. I just made the test in our system and I'm almost sure that you wont get the default approver, but i could be wrong.
Any question please let me know.
Best regards
Cristian R.

SRM 7.0 Process-Controlled (BRF) Workflow -- Error message to Shopping Cart

I am modifying a BRF Expression used to calculate approval levels. During this calculation, I may run into error conditions (e.g. Currency tranlsation not found) that I want to display to the user (in the Shopping Cart).
I have tried raising the following exceptions:
/sapsrm/CX_WF_RULE_ERROR.
/sapsrm/CX_WF_RULE_ABORT.
Raising these exceptions do result in SLG1 log entries being written, but the User is not informed of the error (ie. at top of shopping cart where other messages display).
I can probably jump out of the Webdynrpo to read logs, but thought there MUST be some standard way of passing error conditions from the BRF, back to WF, and then back to the Webdynpro Window.
Anybody raise error messages back to the online user from Process-Controlled Workflow?
Thanks,
- Tim

>
Saravanan Dharmaraj wrote:
> Hi Tim,
>
> I am not sure about your business requirement, but if you want to display custom error message while user create a SC, SAP has provided a standard BADI - BBP_DOC_CHECK_BADI. You can implement this Badi to raise a custom error,warning message. You can build your brf logic in the BADI implementation..
>
>
> Best Regards,
> Saravanan Dharmaraj.
Hi Saravanan,
I am actually modifying the Approval Limit Checks (for multi-currency translations) that you recently coded in Maryland. It can occur that errors occur in determining limits (new Currency translation I just added), or during the lookup of agents (ie user config is inconsistent).
In these cases, I can make the shopping cart Dump, by raising untrapped error messages, or assertions. However, I would like to raise exceptions that get trapped (such as the ones I identified in original post), and then make their way to the shopping cart.
Unless I am missing something, I don't think the WF BADIs, or BRF are gonna communicate errors back to the shopping cart, even though these components are called during cart creation and checks.
I realize that I can recode the Agent Determination BADIs, BRF calls, or even read BRF logs within BBP_DOC_CHECK_BADI. I mentioned this in my original posting as well.
Anyway, any help is appreciated.
Thanks,
- Tim

Transferfunction as a plant process control parameter

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