Using the previous step's output as next step's input in teststand

dear sir/madam;
I developed an application in labwindows CVI which executes in CVI currectly.Then I executed it in Test stand.
I created an Action step for
int Pbit(unsigned char bit_data[50000])
"bit_data" is the output of this function.The next Test Stand step is a "Pass/Fail" step for
int Vme_test(unsigned char *bit_fail_data,int *vme_stat)
"bit_data" is the input for this function and vme_stat is the out put which is generated by using "bit_data".
My question is how to identify "description" and "value expression" of "bit_data" as given in attached files.I tried fileglobals but I think I didnot identify it correctly and I received "No size info" error.
Waiting for your immediate reply.
Best Regards
Attachments:
Pbit.JPG ‏69 KB
vmetest.JPG ‏70 KB

Dear Ray;
I've tried as you adviced to identify a local but although I idnetify my array size as bit_data[50000] it always stops at "2576" when copying my string to bit_data[50000].Then teststand gives 17702 error and stops.Although until 2576 the for loop below;
for (q = 0; q< 5000; q++)
{ bit_data[q] = bit_data_1[q];
works, at magic number 2576 it stops and "no size info" error appear in the watch window for bit_data content.
My code is attached below.I'm still not sure how to identify my test stand step variable description and value expression for this function.
Waiting for your help
Best regards
Attachments:
Pbit.txt ‏3 KB

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<%
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<center>
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<%
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%>
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<%
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%>
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<hr>
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<%
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<%
if(query.checkWhereParameters()){
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%>
 
<%
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<hr>

<center>
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--%>
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Error: 500
Location: /goreme/jspFiles/searchPizzaOrIngr.jsp
Internal Servlet Error:
javax.servlet.ServletException: sql/SQLResultSetBean
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java)
at org.apache.tomcat.core.Handler.service(Handler.java)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java)
at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java)
at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java)
at java.lang.Thread.run(Thread.java:498)
Root cause:
java.lang.NoClassDefFoundError: sql/SQLResultSetBean
at java.lang.Class.getMethods0(Native Method)
at java.lang.Class.getDeclaredMethods(Class.java:1071)
at java.beans.Introspector$1.run(Introspector.java:858)
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at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:856)
at java.beans.Introspector.getTargetEventInfo(Introspector.java:562)
at java.beans.Introspector.getBeanInfo(Introspector.java:300)
at java.beans.Introspector.getBeanInfo(Introspector.java:87)
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at javax.servlet.http.HttpServlet.service(HttpServlet.java)
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at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java)
at org.apache.tomcat.core.Handler.service(Handler.java)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java)
at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java)
at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java)
at java.lang.Thread.run(Thread.java:498)
Does somebody know what happened and why it continues to search SQLResultSetBean.class?...I have also restarted tomcat!!!![b]
Please drop me some helps! It would be really nice!
katia

THANKS A LOT!
I am going on like a snail but maybe before die I will see this project works!
Unfortunately now I have got the previous error: that said:
"Error Page
Received the exception:
javax.servlet.ServletException: Cannot create bean of class sql.SQLQueryResultsBean"
While If I remouve the usebean tag for sql.SQLQueryResultsBean it dislpaied:
DEBUG:
database: testkatia
table: relation1
selected column(s) is(are):pizza_id
DEBUG: Where Clause is Ok
Cols for Where; [pizzaing_id, pizzaing_id, pizzaing_id]
DEBUG:
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JSP
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<%@ page language="java"
import="java.sql.*, java.io.*, java.util.*, java.lang.*"
errorPage="errorpage.jsp"
%>
<jsp:useBean id="query" scope="page" class="sql.SQLQueryBean" />
<jsp:setProperty name="query" property="*"/>
</jsp:useBean>
<%--
<jsp:useBean id="results" scope="page" class="sql.SQLQueryResultsBean" />
<jsp:setProperty name="results" property="*"/>
</jsp:useBean>
--%>
<jsp:useBean id="oneRow" scope="page" class="sql.SQLRow" />
<jsp:setProperty name="oneRow" property="*"/>
</jsp:useBean>
<html>
<body bgcolor="white">
<%! Integer identifier;%>
<%! String general; %>
<%! String[] ingr; %>
<%! Vector column = new Vector(); %>
<%! Vector whereCols = new Vector(); %>
<%! String myQuery = null; %>
<%-- ***** ACTION 1: Searching pizza names by ingredients! **** --%>
<%
String action = request.getParameter("action1");
if(action.equals("Search pizza")){
%>
<%-- ***** SETTING Database, table and columns for SELECT clause **** --%>
<hr>

<center>
DEBUG: 


database: <%query.setDatabase("testkatia");
out.println(query.getDatabase());%>
 
table: <%query.setTable("relation1");
out.println(query.getTable());
query.selectColumns("pizza_id");
query.isDistinct(true);
column = query.getColumns();
%>
 
selected column(s) is(are):
<ul>
<%
if (!column.isEmpty()) {
 for (int i = 0; i < column.size(); i++) {
%>
<li>
<%
 out.println (column.get(i));
 } else out.println ("none selected");
%>
</ul>

<hr>
<%-- ***** SETTING columns value and oper. for the WHERE clause **** --%>
<%
ingr = request.getParameterValues("Checkbox1");
if(ingr!= null){
for(int i = 1; i <=ingr.length; i++){
if(i>1 && i<=ingr.length)
query.selectAnd_OrForWhere("or");
for(int j=1; j<=24; j++){
if(ingr[i-1].equals(("ing"+j))){
general = String.valueOf(j);
query.selectWhereParameters("pizzaing_id","=",general, "integer");
%>

DEBUG:


<%
if(query.checkWhereParameters()){
out.println("Where Clause is Ok");
%>
 
<%
whereCols=query.getColsForWhere();
out.println("Cols for Where; "+ whereCols.toString());
else {
throw new Exception("parameters in the where clause are wrong!n whereClause = "+ query.getWhereClause());
%>

<hr>

<center>
DEBUG: 


The built query is: <%myQuery = query.buildQuery();
out.println(myQuery);
%>
 
The built where clause is:
<%
out.println(query.getWhereClause());
%>

</center>
<hr>
<%
%>
<%--
<%!Vector rows = new Vector();%>
<%
if(myQuery!=null){
results = myQuery.queryExe(sqlQuery);
if(results == null) out.print(" SQLQueryResultsBean obj is NULL!");
out.println(" ---retrieved row num. is--- "+results.getRowNumber());
out.println(" ---Number of columns is--- "+results.getColNumber());
rows = results.getRetrievedRows();
if(!rows.isEmpty()){
out.print("col.: ");
for(int k= 0; k<results.getColNumber(); k++)
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out.println(" ");
for(int i=0; i < results.getRowNumber(); i++){
 oneRow = (sql.SQLRow)rows.get(i);
 out.print(" row"+(i+1)+": ");
 for(int j=0; j<oneRow.rowSize(); j++)
 out.print((String)oneRow.getRowValue(j)+" ");
 out.println(" ");
%>
--%>
</body>
</html>
SQLQueryResultsBean
package sql;
import java.sql.*;
import java.util.*;
public class SQLQueryResultsBean {
String _sqlQuery;
ResultSet resultSet;
int colNumber;
int rowNumber;
Vector colTypes = new Vector();
Vector colNames = new Vector();
Vector _retrievedRows = new Vector();
//Constructor IS IT THIS THE PROBLEM?
public SQLQueryResultsBean(ResultSet rs){
 this.setResultSet(rs);
//Methods for setting and retrieving the ResultSet object
public void setResultSet(ResultSet rs){
 resultSet = rs;
public ResultSet getResultSet(){
 return resultSet;
//Methods for setting and retrieving the Number of the column
public void setColNumber(int n){
 colNumber = n;
public int getColNumber(){
 return colNumber;
//Methods for setting and retrieving a vector containing all the names of the selected columns
public void setColNames(Vector c){
 colNames = c;
public Vector getColNames(){
 return colNames;
//Methods for setting and retrieving a vector containing all the types of the selected columns
public void setColTypes(Vector t){
 colTypes = t;
public Vector getColTypes(){
 return colTypes;
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public void setRowNumber(int n){
 rowNumber = n;
public int getRowNumber(){
 return rowNumber;
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public void setRetrievedRows(Vector retrievedRows){
 _retrievedRows = retrievedRows;
public Vector getRetrievedRows(){
 return _retrievedRows;
//-----STORING THE RESULTS IN CLASS VARIABLES-----
//-----TYPES, NAMES, NUMBERS OF THE COLUMNS OF A GENERIC ROW AND-----
//-----FOR STORING THE NUMBER OF THE RETRIEVED ROWS-----
//storing the results before to close the connection
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where n is the current row.
This is the calculator formula I have come up with:
ch("[1]/New_Channel") = (CHD(chnRow - 1, "[1]/Existing_Channel") + ch("[1]/Existing_Channel")) / 2 + CTNV(chnRow > 1)
Unfortunately, I think chnRow only returns 0.
Obviously, I am a beginner. I am open to other approaches to creating a new channel with a custom filter.
Thanks!
Solved!
Go to Solution.

Hi jbuttron,
What you need to do is to copy the channel and delete the first value from the copied channel-- then the Nth row of the original channel will line up with the (N-1)th row of the copied channel. You should also add the last value of the copied channel to the end of that channel as a new value so both channels end up with the same channel length. Now you can reference the channels with Ch("[1]/old") and Ch("[1]/new") in the channel calculator expression, assuming that the channel names are "old" and "new" respectively and that both are in the first group. You don't need a row variable in the expression now, which is good because there's no way to iterate a row variable in a channel calculator expression. The row iteration is implicit in the channel referencing Ch("[1]/new").
Brad Turpin
DIAdem Product Support Engineer
National Instruments

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