How to use the motor feedback

I use six servo motor to control them to form some traces. the motor is from japan ,and every motor has its own encoder , and the endoer output to its servo drive to form closed loop .they say the motor system's closed loop is ve precise ,I do not have to connect the encoder to the motion controller . by the way I use pxi 7354 and umi 7774 to control the motors. my application is to set the position loop mode to control the six motors'motion correlatively.
but I want to try to connect the encoder to the motion controller .so the error comes out . first I have to select the step mode in the MAXI I can start the motor even if I do not connect the feedback, when I select the serve mode the motor can not work. why ? the second when the feedback is connected , the motor had to work in a very low velosity ,otherwise the following error will reach the default.even I set the following error is very big , when the velosity come up to some extreme the motor will stop for the following error's limit
who can help me

Dear Sir/Madam,
I have a similiar problem also. For example, I use Stepper mode with open loop configure in MAX to run a FUJI servo with no problem at all, but once it is configured to close loop in MAX the encoder value doesn't change when monitored from 1D interactive window of MAX. And eventually the following error came out and motor stop!
I have set the correct encoder feedback parameter in Servo drive, and I can read the encoder value by Read Encoder.vi but How come it doesn't show the value in MAX? Is any configuration that I was missed out in MAX? Is need to set the encoder setting in MAX to match the servo encoder output?
Thanks.

Similar Messages

How to use the result from a taglib?

Hi people.
I've been looking arround for some feedback on how to use the output generated by a taglib on jsp code but I haven't been able to find any.
Could somebody tell me how to do that please?

It works something like this:
The tab library consists of a class library and a tag libraray descriptor file. In your jsp header you include a taglib directive which associated athe TLD with a particular name prefix. Then you can include XML tags with that prefix and the tag library class to which they are connected will be invoked from the servlet that is generated from the JSP. This tag code can do pretty much anything, but usually what it mostly does is write HTML to the response stream. Opening tags and closing tags can both add whatever text they like to the stream which is sent to the client.
So including the tag in you JSP will usually suffice to cause generated output, it's up to the taglib.

How to use the same POWL query for multiple users

Hello,
I have defined a POWL query which executes properly. But if I map the same POWL query to 2 portal users and the 2 portal users try to access the same page simultaneously then it gives an error message to one of the users that
"Query 'ABC' is already open in another session."
where 'ABC' is the query name.
Can you please tell me how to use the same POWL query for multiple users ?
A fast reply would be highly appreciated.
Thanks and Regards,
Sandhya

Batch processing usually involves using actions you have recorded. In Action you can insert Path that can be used during processing documents. Path have some size so you may want to only process document that have the same size. Look in the Actions Palette fly-out menu for insert path. It inserts|records the current document work path into the action being worked on and when the action is played it inserts the path into the document as the current work path..

Okay so I set up my Time Capsule already and is now backing up 2 of my iMacs. Works great. What I want to know is how to use the TC to directly store files? I want to do this to delete some files but still have them on the TC for future reference..

Okay so I set up my Time Capsule already and is now backing up 2 of my iMacs. Works great. What I want to know is how to use the TC to directly store files? I want to do this to delete some files on iMac 20inch but still have them on the TC for future reference..eg some movies on iTunes. I want to directly save them on the drive so I can delete them from iTunes and gain some storage. (Ps on iMac 20 inch (it's almost full - 320 GB) when I enter time machine, a tab comes up on finder which reads "Time Machine backups" it's able to be ejected like a disc or a connected device. On the iMac 20 inch, I dragged some files onto there as if using it like a hard drive. Is this the correct method? Then I went to my 27inch iMac and saw the "Time Machine Backups" hoping to see the files I dragged from the 20inch iMac. But the files were not there except a folder that said "Backups.backupdb". Can someone help me?

It's not a good idea to use a network disk for both Time Machine backups and other things. By design Time Machine will eventually consume all the space on its output disk, which will then cause problem for your other files. I'd store those other files on an external disk connected to the Time Capsule. The problem with that is that Time Machine will only back up files that are local to your Mac. That means that you'll only have one copy of the files on or attached to your Time Capsule.
By the way, you've been misled by poor field labeling on this forum into typing a large part of your message into the field intended for the subject. In the future just type a short summary of your post into that field and type the whole message into the field below that.

JNI - How to use the error reporting mechanism?

I've developed a C++ DLL which is loaded from a commercial Win32 application (not written by me) as a plug-in for external calculations. On its initialization the C++ DLL launches the Java VM via the JNI invocation interface. When the DLL functions are called by the application, they forward the calls to Java objects inside the Java VM, again via JNI invocation interface.
This works well, but I have encountered a weird error.
From Java I open a JFrame containing a JTextArea as small console for debug output messages. If I turn output to this debug console off (my printToConsole routine checks whether a boolean flag is set), the string concatenation operator may lead to a crash of the Java VM.
For example, if in one of the Java functions called from the
DLL via JNI invocation interface the following is the first statement,
it leads to a crash of the Java VM and the application that loaded the C++ proxy DLL.
String test=""+Math.random(); // String test not used later
Interestingly, if I comment this statement out, the Java code works fine WITHOUT any crash. I've already thought about potential races and synchronization issues in my code, but I don't see where this is the case. And the string concatenation error fails as well, if I insert sleep() statements in front of it and at other places in the code. However, if I turn on log messages printed to my JFrame debug console (containing a JTextArea), the String concatenation works without problems.
So maybe the JNI interface has a bug and affects the Java VM; I don't see where my JNI code is wrong.
One problem is that I do not get any stdout output, as the C++ proxy DLL is loaded by the Windows application, even if I start the Windows application from the DOS command line (under Windows).
Does anyone know how to use the error reporting mechanism?
http://java.sun.com/j2se/1.4.2/docs/guide/vm/error-handling.html
Is it possible that the JVM, when it crashes, writes debug information about the crash into a file instead of stdout/stderr?
My C++ proxy DLL was compiled in debug mode, but the commercial application (which loaded the DLL) is very likely not.
I do not know hot to find the reason why the String concatenation fails inside the Java function called from the C++ DLL via JNI.

Yes, I've initially thought about errors in the C++ code too. But the C++ code is actually very simple and short. It doesn't allocate anything on the C++ side. It allocates a couple of ByteBuffers inside the Java VM however via JNI invocation interface calls of env->NewDirectByteBuffer(). The native memory regions accessed via the ByteBuffers are allocated not by my own C++ code, but by the program that calls my DLL (the program is Metastock).
The interesting thing is that everything works fine if output to my debug console is enabled, which means that in the Java print routine getConsoleLoggingState() returns true and text is appended to the jTextArea.
static synchronized void print(String str)
{ MetaStockMonitor mMon=getInstance();
if ( mMon.getFileLoggingState() && mMon.logFileWriter!=null) {
mMon.logFileWriter.print(str);
mMon.logFileWriter.flush();
if ( mMon.getConsoleLoggingState() ) {
mMon.jTextArea1.append(str);
Only if output to the JTextArea is turned off (ie. getConsoleLoggingState()==false), the crash happens when the FIRST statement in the Java routine called via JNI invocation interface is a (useless) String concatenation operation, as described above.
String test=""+Math.random(); // String test not used later
Moreover, the crash happens BEFORE the allocated ByteBuffer objects are accessed in the Java code. But again, if console output is turned on, it works stable. If console output is turned off, it works when the (useless) String concatenation operation is removed in the Java routine called from C++.
I've already thought about potential races (regarding multiple threads), but this can be ruled out in my case. It almost appears as if the JVM can have problems when called by the invocation interface (I tested it with Java 1.4.2 b28).
All the calls between C++ and Java go ALWAYS in the direction from C++ code to Java. Unfortunately, there is no special JRE version with extensive logging capabilities to facilitate debugging. And the problem is not easily reproducible either.
JNIEnv* JNI_GetEnv()
JNIEnv *env;
cached_jvm->AttachCurrentThread((void**)&env,NULL);
fprintf(logfile,"env=%i\n",env);
fflush(logfile);
return env;
// function called by Metastock's MSX plug-in interface
BOOL __stdcall createIndEngine (const MSXDataRec *a_psDataRec,
const MSXDataInfoRecArgsArray *a_psDataInfoArgs,
const MSXNumericArgsArray *a_psNumericArgs,
const MSXStringArgsArray *a_psStringArgs,
const MSXCustomArgsArray *a_psCustomArgs,
MSXResultRec *a_psResultRec)
a_psResultRec->psResultArray->iFirstValid=0;
a_psResultRec->psResultArray->iLastValid=-1;
jthrowable ex;
jmethodID mid;
JNIEnv* env=JNI_GetEnv();
jobject chart=getChart(env, a_psDataRec);
if ( chart==NULL) {
return MSX_ERROR;
jobject getChart (JNIEnv* env, const MSXDataRec *a_psDataRec)
jthrowable ex;
jmethodID mid;
int closeFirstValid, closeLastValid;
closeFirstValid=a_psDataRec->sClose.iFirstValid;
closeLastValid=a_psDataRec->sClose.iLastValid;
long firstDate, firstTime;
if (closeFirstValid>=1 && closeFirstValid<=closeLastValid) {
firstDate = a_psDataRec->psDate[closeFirstValid].lDate;
firstTime = a_psDataRec->psDate[closeFirstValid].lTime;
} else {
firstDate=0;
firstTime=0;
jclass chartFactoryClass = env->FindClass("wschwendt/metastock/msx/ChartFactory");
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot find class ChartFactory\n");
printSBufViaJava(sbuf);
return NULL;
mid = env->GetStaticMethodID(chartFactoryClass, "getInstance", "()Lwschwendt/metastock/msx/ChartFactory;");
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot find method ID for ChartFactory.getInstance()\n");
printSBufViaJava(sbuf);
return NULL;
jobject chartFactory=env->CallStaticObjectMethod(chartFactoryClass, mid);
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Exception while calling ChartFactory.getInstance()");
printSBufViaJava(sbuf);
return NULL;
mid = env->GetMethodID(chartFactoryClass, "getChartID", "(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;IIIIIII)F");
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot find method ID for ChartFactory.getChartID()\n");
printSBufViaJava(sbuf);
return NULL;
jobject symbolBuf=env->NewDirectByteBuffer(a_psDataRec->pszSymbol, strlen(a_psDataRec->pszSymbol) );
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot allocate symbolBuf\n");
printSBufViaJava(sbuf);
return NULL;
jobject securityNameBuf=env->NewDirectByteBuffer(a_psDataRec->pszSecurityName, strlen(a_psDataRec->pszSecurityName) );
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot allocate securityNameBuf\n");
printSBufViaJava(sbuf);
return NULL;
jobject securityPathBuf=env->NewDirectByteBuffer(a_psDataRec->pszSecurityPath, strlen(a_psDataRec->pszSecurityPath) );
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot allocate securityPathBuf\n");
printSBufViaJava(sbuf);
return NULL;
jobject securityOnlineSourceBuf=env->NewDirectByteBuffer(a_psDataRec->pszOnlineSource, strlen(a_psDataRec->pszOnlineSource) );
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Cannot allocate onlineSourceBuf\n");
printSBufViaJava(sbuf);
return NULL;
// Java Function call leads to crash, if console output is turned off and
// the first statement in the Java routine is a (useless) string concatenation.
// Otherwise it works stable.
jfloat chartID=env->CallFloatMethod(chartFactory, mid, securityNameBuf, symbolBuf,
securityPathBuf, securityOnlineSourceBuf, (jint)(a_psDataRec->iPeriod),
(jint)(a_psDataRec->iInterval), (jint)(a_psDataRec->iStartTime),
(jint)(a_psDataRec->iEndTime), (jint)(a_psDataRec->iSymbolType),
(jint)firstDate, (jint)firstTime );
if (ex= env->ExceptionOccurred() ) {
env->ExceptionDescribe();
env->ExceptionClear();
sprintf(sbuf, "DLL: Exception while calling ChartFactory.getChartID()");
printSBufViaJava(sbuf);
return NULL;

How to use the t-code vf31 tor taking print out of invoice

Hi,
How to use the t-code vf31 for taking print out,am getting an error like no message for initial processing exist,
venu

Hi,
Please find the steps
Output type                     RD00
Transmission medium             1
Sort order                      01
Processing mode                 1
Please give the oppropriate fields,
if the still error persists check the configuration in NACE transaction code.
thanks
Kuntla

How to Use the same iview for both KM End User and the KM Administrator

Hi friends,
*This is my scenario :* How to Use the same iview for both KM End User and the KM Administrator but with different Context
Menu Options.
i followed these steps but im getting same context menu for both KM End User and the KM Administrator .
Assign the role Content Administrator to the user km_admin. This is needed so that km_admin can change
the presentation settings for the KM Folder u201EReports_kmFolder‟.
Now, login with user km_admin. Navigate to the Km Folder reports_kmFolder through Content Administration
-> Km Content. Click on Details link of the folder reports_kmFolder.
Go To Settings -> Presentation. Click on the tab u201ESettings for You‟-> Click on button u201ESelect Profile‟.
Select the radio button corresponding to u201Elayout Set‟, and choose u201EConsumerExplorer‟ from the dropdown.
Click u201EOK‟.
Select both the check boxes corresponding to Items Affected as shown above, and click u201ESave‟
Now, remove the u201ESuper Administrator‟ role from the user km_admin and login with this user.
How rto resolve this????
Regards,
Prasad.

Hello Prasad,
Most likely the user km_admin still has system principal roles assigned, even though you removed the Super Admin role, you should check that this user doesn't have any other admin roles, otherwise it will be considered a System Principal user and will therefore still have access to all content. For more information see http://help.sap.com/saphelp_nw70/helpdata/en/19/56f28fbd4e11d5993b00508b6b8b11/frameset.htm
Try creating a new user with just read access to the content and you should see that it will not be able to make any changes etc.
Regards,
Lorcan.

How to use the same OC4j server with different port number

How to use the same OC4j server with different port numbers..?
I have to OC4J installed on my machine on different hard disk drives....
I want to be able to run both the server simultaneously..?
is it possible ..it yes then how..?
for that i have changed the port number of one server...
but when i am trying to start the other server with different port number..it says that JVM -Bind already...
Is there any clues...?
Nilesh G

In the config directory:
default-web-site.xml: Change the port the HTTP listener listens on
jms.xml: Change the port the JMS service listens on
rmi.xml: Change the port the ORMI listener listens on.
Or, you can add another web-site.xml file, and deploy your applications to 1 server, and bind the web applications to the different web sites. This way you only have to deploy your applications to 1 place.
Rob
Oracle

Does anyone know how to use the bcc functionality for apple mail while accessing it on the cloud from my PC?

I am currently away from my MAC and want to send an email through apple mail with the bcc functionality. I am using the cloud to get to my mail, however, I can't figure out how to use the BCC functionality, please help. Thanks!

Open your mail,
lower left corner click on settings,
go to composing and check BCC, save and your done

How to use the table maintenance events for validating the input entries..?

Hi,
I have created a Z table with 6 fields in which all are KEY fields. All are of CHAR type. I have created the Table Maintenance Generator for the same. While maintaining the entries in the table, even though I maintain a blank entry for a field it is saving the entry. But, I don't want that way. All the fields are mandatory in my table. One should enter all the fields. Otherwise it should not allow to save the entry. So, I think it can be done using the Table Maintenance Events. can someone tell me how to use the Table Maintenance Events. and which event to use for my reuqirement and what is the logic to be written.
Or Is there any other way to solve my problem.
Please share your inputs. Thanks in advance.
Best regards,
paddu.

In the table maintenance generator, Environment --> Modifications --> Events then a screen will be appear here,we need to create the Events.In the EVENTS screen, press new Entries, there give 01(Before Saving the Data in the Database) and give a name(This will become a PERFORM), then click the Editor pushbutton, this will be there at the right side of the entry, then a popup will be appear, you can create an include program, there inside of the include program write ur code.
Here is documentation for Event 01(Before Saving the Data in the Database )
Event 01: Before Saving the Data in the Database
Use
This event occurs before new, changed or deleted entries are written to the database. Other activities can be performed, for example:
hidden entry processing
fill hidden fields
flag data to be written to hidden tables after the database change.
To have the changes saved by the central maintenance dialog routines, SY-SUBRC must be set to 0 at the end of the routine.
Realization
This event has no standard routine. The following global data is available for the realization of the user routine:
internal table TOTAL
field symbols
field symbols <ACTION> and <ACTION_TEXT>
<STATUS>-UPD_FLAG
If internal table data are to be changed before saving, t he changes should be made in both the internal table TOTAL and in the internal table EXTRACT.
FORM abc.
DATA: F_INDEX LIKE SY-TABIX. "Index to note the lines found
LOOP AT TOTAL.
IF <ACTION> = desired constant.
READ TABLE EXTRACT WITH KEY <vim_xtotal_key>.
IF SY-SUBRC EQ 0.
F_INDEX = SY-TABIX.
ELSE.
CLEAR F_INDX.
ENDIF.
(make desired changes to the line TOTAL)
MODIFY TOTAL.
CHECK F_INDX GT 0.
EXTRACT = TOTAL.
MODIFY EXTRACT INDEX F_INDX.
ENDIF.
ENDLOOP.
SY-SUBRC = 0.
ENDFORM.
Regards,
Joy.

How to use the same services-config for the local and remote servers.

My flex project works fine using the below but when I upload my flash file to the server I doesn't work, all the relative paths and files are the same execpt the remote one is a linux server.
<?xml version="1.0" encoding="UTF-8"?>
<services-config>
    <services>
        <service id="amfphp-flashremoting-service"
            class="flex.messaging.services.RemotingService"
            messageTypes="flex.messaging.messages.RemotingMessage">
            <destination id="amfphp">
                <channels>
                    <channel ref="my-amfphp"/>
                </channels>
                <properties>
                    <source>*</source>
                </properties>
            </destination>
        </service>
    </services>
    <channels>
    <channel-definition id="my-amfphp" class="mx.messaging.channels.AMFChannel">
        <endpoint uri="http://localhost/domainn.org/amfphp/gateway.php" class="flex.messaging.endpoints.AMFEndpoint"/>
    </channel-definition>
    </channels>
</services-config>
I think the problem is the line
        <endpoint uri="http://localhost/domainn.org/amfphp/gateway.php" class="flex.messaging.endpoints.AMFEndpoint"/>
but I'm not sure how to use the same services-config for the local and remote servers.

paul.williams wrote:
You are confusing "served from a web-server" with "compiled on a web-server". Served from a web-server means you are downloading a file from the web-server, it does not necessarily mean that the files has been generated / compiled on the server.
The server.name and server.port tokens are replaced at runtime (ie. on the client when the swf has been downloaded and is running) not compile time (ie. while mxmlc / ant / wet-tier compiler is running). You do not need to compile on the server to take advantage of this.
Hi Paul,
In Flex, there is feature that lets developer to put all service-config.xml file configuration information into swf file. with
-services=path/to/services-config.xml
IF
services-config.xml
have tokens in it and user have not specified additional
-context-root
and this swf file is not served from web-app-server (like tomcat for example) than it will not work,
Flash player have no possible way to replace token values of service-config.xml file durring runtime if that service-config.xml file have been baked into swf file during compilation,
for example during development you can launch your swf file from your browser with file// protocol and still be able to access blazeDS services if
-services=path/to/services-config.xml
have been specified durring compilation.
I dont know any better way to exmplain this, but in summary there is two places that you can tell swf about service confogiration,
1) pass -services=path/to/services-config.xml parameter to compiler this way you tell swf file up front about all that good stuff,
or 2) you put that file on the webserver( in this case, yes you should have replacement tokens in that file) and they will be repaced at runtime .

How to use the same email address for outgoing email on two iPads?

How to use the same email address for outgoing email on two iPads?. My wife and I both use the same email address. We receive the same incoming email on both iPads but are unable to send email from my wife's iPad. She is using an iPad 2 and is usng IOS 6.0.1

Hi Creaturekeeper,
If you've added the account into the iPad and you are unable to send email from it, then please follow the troubleshooting in the article below.
Get help with Mail on iPhone, iPad, and iPod touch - Apple Support
Take care,
Alex H.

How to use the second display for installation OS in my vertical lines iMac

My 17" iMac display is full of vertical lines, it is unuseable. Does anyone know how to use the second display for Mac OS X or disable the first display for installation Mac OS x ?

Go to: *System Preferences > Displays* and select the Arrangement tab, then relocate your Menu bar by dragging it to the other display.
Unfortunately there is no Hardware or Software switch to turn off the iMac's Internal Display.

How to Use the language function for assignment and validation

Hi All,
If anyone can explain me in details with example ,how to use the language function for assignments and validations?
Thanks
Arnab

Hi Arnab,
The expression is checked only for the current MDM session.
If u login with the ABC language it will always show the ABC language no matter how many times u execute it.
Try connecting to the DM with the XYZ language.
It should go to the if part rather than else.
Hope it helps.
Thanks,
Minaz

How to use the index method for pathpoints object in illustrator through javascripts

hii...
am using Illustrator CS2 using javascripts...
how to use the index method for pathpoints object in illustrator through javascripts..

Hi, what are you trying to do with path points?
CarlosCanto

How to use the motor feedback

Similar Messages

Maybe you are looking for