Configuring channel indices on multi-board PCI-4472 systems

When using multiple PCI-4472, I've not been able to predict which card will index as ch.1-8, 9-16, etc. based on the PCI slot position. Is there a way to define the card position with a channel index programmatically?

Marni,
It is of great interest to me to be able to correlate a PCI bus and PCI device number to the device numbers (Traditional NI-DAQ) that MAX assigns to the PCI NI-4472s. My goal is to be able to designate a particular slot in the PCI bus as the location of the PCI NI-4472 "master" in a multi PCI NI-4472 synchronous configuration, and do it programmatically. To accomplish this, I need to be able to determine the NI-DAQ device number for the PCI NI-4472 that is in the "master" PCI slot. Once I know the NI-DAQ device number of the card in the master slot, I can do the appropriate clock routing. One reason makes this correlation necessary is that the device numbers that MAX assigns do not necessarily remain the same. Do you know of a way that I can determine a card's device number if I know the PCI bus and PCI device number? I am really trying to make a specific physical PCI slot be analogous to a PXI Slot 2.
Thanks for your help,
Mark

Similar Messages

DAQmx Channel Calibration on PCI-4472

I am reading Analog Input signals from a PCI-4472 device and I need to calibrate the channels independently of each other.
I am using DAQmx Create Channel.vi followed by a DAQmx Timing.vi followed by a DAQmx Start Task.vi and then in a while loop I have a DAQmx Read.vi that reads continous samples on a specified amount of time.
I want to be able for the user to change calibration settings for the different channels before he/she starts the data acquisition process. I want to use the SVL Calibrate Sensor.vi but don't know where to place it on the block diagram. None of the outputs from the SVL Calibrate Sensor.vi can be hooked up to the DAQmx VIs listed above.
How would I use the SVL Calibrate Sensor.vi to calibrate the different channels? I need to be able to set the coupling, excitation, weighting, and etc. on a channel per channel basis.
Thank you.

Hi,
First of all, The SVL calibrate sensor is a stand alone functional VI and you do not have to connect it with any of the following, DAQmx Create Channel.vi, DAQmx Timing.vi or DAQmx Start Task.vi.
Just double click on it and open its block diagram. You will understand what i am trying to explain
I have attached a VI which you can use to perform cal on each channel with seperate config settings
Just put this part of code inside a case structure and see to it that executes before your DAQ mx create channel to perform SVT calibration before your DAQ process
Hope this helps
Regards
Dev
Message Edited by devchander on 01-20-2006 11:21 PM
Attachments:
svt.vi ‏102 KB

PCI-4472 -- Measuring Resistance

Is it possible to measure resistance with a PCI-4472 DAQ card? When I use the DAQMX create measurement channel.vi and set it to resistance measurement I get a error message saying 'this physical channel cannont measure resistance, please select voltage....'

The PCI-4472 is a DSA (Dynamic Signal Analyzer) variety of DAQ board. This means it is optimized for measuring dynamic signals and accurately measuring the frequency components. To measure resistance you will provide a current as gwd mentions, and read back the voltage. You will need to take at least 2 measurements (a requirement of the DSA design).
From the voltage measurement you can scale using Ohms Law (R=V/I) to determine resistance.
Regards,
Jennifer O.

PCI-4472 self calibration error under MAX

Hi,
Our PCI-4472 appeared to have offsets on the order of several hundred microvolts, so I tried a self calibration under MAX (version 4.1.0.3001) to try to reduce them. The self calibration gave me the error message:
"Measurement taken during calibration produced an invalid AI gain calibration constant."
Does anyone know where I can find troubleshooting information for this issue, or have any suggestions on how to fix it?
Thanks,
Ron Norton
Faculty Research Assistant
Gravitation Experiment Research Group
Department of Physics
University of Maryland
College Park, MD

I am posting this for an applications engineer, intended for this to post last in a linear fashion ~
I have attached screen grabs of the self test and calibration panels.
When running the "self-test" panels within MAX, all tests pass.
I performed the tests after hitting "reset" in MAX.
Current versions of software installed: Labview Full Dev 8.2., and Max 8.5.
All upgrades have been applied.
Ai1 is setup to measure a voltage differential of 1-5 VDC based upon a "differential" input
across a precision resistor. I have setup custom scale, 1V = -40`C 5V = +180`C.
I have tried setting sample rates of: 3 @3Hz, 10@60Hz, 100 @600Hz, etc...
As I run the self test, and it's the same when I launch Labview and work within a VI, I see
the wave output with what looks like a square wave. I have put a scope on the wire pair
and do see steady voltage levels. Sensor has a current loop supplying external excitation.
Sensor output passes thru a linearization circuit operating at 60Hz.
In the 3rd image I captured Ai0 which is similarly setup in "differential" 1-5VDC input to scaled output.
You can see the graph image captures the trailing signal just like on Ai1 analog channel.
I have verified from Omega that the sensor is wired correctly supplying current loop,
and also taken the wires and "twisted" the pairs for less EMI/RFI crosstalk/noise.
The sensor and it's power supply are brand new purchased directly from Omega.
I am planning to send this to a local vendor for calibration, SE Labs in Santa Clara, but if it's
a matter of the boards circuitry being damaged than it needs repair. I started here about
3 months ago and after asking around found the PCI-6250 DAQmx board was available.
Problem is I don't know the history, besides the 2 year calibration expiring Nov of 2006.
The 1 thing I have not tried is moving the PCI to another slot, but FYI I have just this week
moved the PCI card over to another workstation that exceeds minimum hdw requirements.
This card was installed in a Pentium III @848MHz workstation with 424MB of ram.
Facts are the graph output of both channels look exactly the same in either pc.
The previous user was an engineer, whom may have exceeded voltages/parameters
on the analog and/or digital inputs. Thank you again for your knowledgeable replies!
Sincerely,
Phil Johnson
Hardware Technician
http://www.digitalpersona.com/

Check IEPE sensor connectivity and IEPE status (PCI 4472)

Can someone tell me if it is possible to do the following in a LabVIREW program (with PCI 4472, LabVIEW and DAQmx).
1) check the connectivity of an IEPE sensor/cable,i.e., if the cable connecting to an IEPE accelerometer is broken.
2) check the IEPE status of a PCI 4472 channel, i.e, if IEPE of ai0 is turned on.
Thanks.
Ian

Hi, Ima
Yes, When the IEPE is turned on, it remains on until you specifically turn it off.
For my application, I need to have some channel IEPE on and some off, and the configuration changes frequenctly.
If I have already turned IEPE on, and on the new task I need to call the DAQmx Create AI Channel (Sub).vi with "Voltage" input, IEPE will be turned off, unless I specify in the property node to set IEPE of desired channels on.
Ideally, this is what I want to do. If the IEPE was on before I call DAQmx Create AI Channel (Sub).vi, I will to start measurement straight away; if the IEPE was off before I call DAQmx Create AI Channel (Sub).vi and property node to turn IEPE on, then after commit, I will wait for few seconds to let IEPE sensor to settle. Therefore, I need to "poll" the device to determine the current IEPE status of individual channels. I guess I can track this from my software, but "polling" may be more reliable.
Is there any way I do this?
Thanks.
Ian
Attachments:
Physical Chan.gif ‏3 KB

Scan AI from all channels in 6023 daq board

I am trying to use single point scan for every Analog input channel in my 6023 board. I get a scan out of range error. I have tried multiple configurations. Basically it is only letting me scan 9 out of the 16 channels. I am scanning 0-5vdc signals. I have even tried the multiple channel scan with the same error.

You will get a scan out of range error if your board is set for differential instead of single ended configuration. Find this property in MAX.

PCI-4472 not functioning with DAQmx Linux 8.0

We have multiple systems with PCI-4472 cards in them running SUSE Linux, and all but one of them function properly. On the particular system in question (which has identical hardware and software to the functioning systems), nilsdev lists no devices. Further investigation revealed the following excerpt from dmesg:
allocation failed: out of vmalloc space - use
vmalloc=<size> to increase size.
Unable to handle kernel NULL pointer dereference at virtual address
000002fc
printing eip:
f9ede608
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: nidsark nistcrk nicdrk nistc2k nimru2k nimxpk ipt_pkttype
ipt_LOG ipt_limit nipxirmk nidimk nimsdrk nidmxfk nimxdfk nimstsk nimdbgk
niorbk speedstep_lib freq_table nipalk nikal snd_pcm_oss snd_mixer_oss snd_seq
snd_seq_device button battery ac af_packet video1394 raw1394 edd ide_cd cdrom
sk98lin ohci1394 ieee1394 snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm
snd_timer snd soundcore snd_page_alloc i2c_i801 i2c_core hw_random generic
ehci_hcd intel_agp agpgart uhci_hcd usbcore shpchp pci_hotplug ip6t_REJECT
ipt_REJECT ipt_state iptable_mangle iptable_nat iptable_filter ip6table_mangle
ip_conntrack ip_tables ip6table_filter ip6_tables ipv6 parport_pc lp parport
nls_iso8859_1 nls_cp437 vfat fat nls_utf8 ntfs dm_mod ext3 jbd sg fan thermal
processor ata_piix libata piix sd_mod scsi_mod ide_disk ide_core
CPU:    1
EIP:    0060:[<f9ede608>]    Tainted: PF    U VLI
EFLAGS: 00010246   (2.6.13-15-smp)
EIP is at nidsark-unversioned0004550+0x70/0x11e4 [nidsark]
eax: 00000000   ebx: f6be1d68   ecx: 00000000   edx: 00000000
esi: f6514770   edi: f6514760   ebp: f6be1964   esp: f6be1958
ds: 007b   es: 007b   ss: 0068
Process nipalsm (pid: 6952, threadinfo=f6be0000 task=c2344540)
Stack: f6be1d68 f6514b68 f6be1d68 f6be197c f9efb4d0 f6514760 f6be1d68 f6514b68
       f6b82690 f6be1a1c f9e93409
f6514b68 f6be1d68 f6514760 f6be1d68 00000004
       f6be1d6c 00000100 f6be19b8
f95bbf19 f6be1bd0 f6be1d6c f6be1d6c f6be1b98
Assuming that the NULL pointer deference was caused by the preceding failed vmalloc, I attempted to increase the vmalloc size to 512MB (which is certainly overkill). This did nothing to clear the error. One final detail is that this computer dual boots Windows, while the others have only ever run Linux. It shouldn't matter, but I feel it is worth mentioning in the event that DAQmx for Windows somehow mangles the configuration of the card to a point where it no longer functions with DAQmx for Linux. It should be noted that the card works just fine under Windows.
I have the output from niSystemReport available in the event that it will help in diagnosing the problem, but am unable to attach it due to the size restriction of this forum. The call trace from dmesg is in the attached file. Any help would be greatly appreciated.
-Peter Lisherness
Message Edited by PeterLisherness on 07-10-2006 12:36 PM
Attachments:
dmesg.txt ‏5 KB

Peter,
I have a couple of other questions which might help us narrow this down.
1. You said both the working and non working machines have identical hardware and software. I'm assuming this means both machines are Pentium 4 3.2 GHz SMP machines 2 GB of RAM, have the same motherboards etc. I also assume that this means that they also are both running SUSE 10.0 and have the same updates, and kernel versions. Is this correct? A system report from the working machine could also help us confirm this.
2. Can you easily reproduce the Oops? When does it occur? Does it happen when the machine first boots up, or do you have to run nilsdev first?
Thanks,
Shawn B.
Use NI products on Linux? Come join the NI Linux Users Community

Synchronisation de PCI-4472 et PCI-4474 et support DAQ traditionnel/DAQmx

Bonjour,
comment émuler la fonction RTSI (synchronisation de l'acquisition entre
les
cartes PCI 4472 et 4474) avec DAQmx version 7.2 ?
A l'éxécution de l'exemple Multi-Device Synch-Shared Timebase-Cont
Acquisition.vi, j'obtiens le message d'erreur suivant :
L'erreur -200452 s'est produite à Noeud de propriété DAQmx Timing (arg 1)
dans
Multi-Device Synch-Shared Timebase-Cont Acquisition.vi
Raison(s) possible(s) :
Specified property is not supported by the device or is not applicable to
the
task.
Property: MasterTimebase.Src
Task Name: _unnamedTask<3>

(Réponse identique au forum posté le 10/05/2004).
Bonjour,
Les cartes PCI-4472 et PCI-4474 ne sont pas dans la liste des cartes compatibles avec l'exemple "Multi-Device Synch-Shared Timebase-Cont Acquisition.vi".
Ceci peut expliquer pourquoi le noeud de propriété renvoie une erreur DAQmx.
Vous pouvez utiliser l'exemple "Multi-Device Sync AI Shared Timebase & Trig DSA" qui a été développé spécialement pour les cartes DSA (et donc les PCI-4472 & 4474).
Cet exemple permet de faire de l'acquisition simultanée finie avec déclenchement commun. Pour faire une acquisition continue, il vous suffira de paramétrer le NI-DAQmx Timing à "Continuous samples" et d'intégrer le NI-DAQmx Read dans une boucle While.
Cordialement.

Error while configuring channels in B2B 11g

Hi b2bgurus,
I am implementing RosettaNet protocol in 11g. 3C3 Invoice Notification. While configuring channels i got this following error:
"Messages for this page are listed below.
Acme_Custom_V02.00_Invoice_Notification_Outbound is not valid. Please correct the following errors.
Error -: B2B-52255: Certificate alias not specified in the secure delivery channel Acme_Channel.
Error -: B2B-52326: Transport protocol with https url has to have valid keystore location and password in host "
I get the above error while I provide http url as input. Do we have a protocol where we can provide https url?
Please explain i am new to B2B.
Thanks in advance

get this error when i provide the url while channel creation. SSL is enabled by using BIG IP. Hence preparation of Key store is not requiredYou understanding is not correct. If you are initiating a SSL connection from Oracle B2B (by giving a HTTPS URL in delivery channel), then you have to configure identity and trust store in your Weblogic servers (SOA server) and you have to configure keystore on Oracle B2B console as well. As I mentioned earlier also refer the blog (http://anuj-dwivedi.blogspot.com/2010/10/enabling-ssl-on-oracle-b2b-11g.html) and perform the required steps.
If you don't configure a keystore then you CAN NOT initiate a SSL connection from Oracle B2B.
If you want Big IP to handle SSL then from Oracle B2B you have to initiate a plain HTTP connection and at BIG IP you have to route the request to the respective HTTPS channel (which I am not sure is possible though I am not familier with BIG IP)
Regards,
Anuj

No configured channel...

I'm running Apache, Tomcat, and FDS. I'm getting the message
"...No configured channel has an endpoint path /messagebroker/amf"
in a Java exception on the server. The path listed in the exception
is "/messagebroker/amf". However in my services-config.xml I've
spelled out the whole URI including the HTTP and server name
values. I compiled the .swl using this endpoint uri value.
Has anybody else run into this?
Why am I getting only a partial path name from the
MessageBrokerServlet?

Interesting to see that the problem I am having appears to be an old one.
My situation:
Flex 3 on Cold Fusion 8 on Vista (with iiS 6 ?) (laptop).
The application is one I built using one of the Flex 3 wizards. Its a simple CRUD form based on a database table.
Run for the first time, it fails with the (browser) error dialog message:
(mx.rpc::Fault)#0
content = (Object)#1
errorID = 0
faultCode = "Channel.Call.Failed"
faultDetail = "NetConnection.Call.Failed: HTTP: Status 500"
faultString = "error"
message = "faultCode:Channel.Call.Failed faultString:'error' faultDetail:'NetConnection.Call.Failed: HTTP: Status 500'"
name = "Error"
rootCause = (Object)#2
    code = "NetConnection.Call.Failed"
    description = "HTTP: Status 500"
    details = "http://localhost/flex2gateway/"
    level = "error"
In the coldfusion_out.log appears the following (truncated) error message:
28/08 15:49:07 error No configured channel has an endpoint path '/flex2gateway/index.cfm'.
[1]flex.messaging.MessageException: No configured channel has an endpoint path '/flex2gateway/index.cfm'.
at flex.messaging.MessageBroker.getEndpoint(MessageBroker.java:499)
at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java:427)
at coldfusion.flex.ColdFusionMessageBrokerServlet.service(ColdFusionMessageBrokerServlet.jav a:50)
The problem appears to be an old one, but I've not been able to find what must be the common solution to it.
can someone please point me in the right direction ?
Oh and yes, I am compiling with the above -services switch, and it is pointing to the location of the correct file.
Any help will be appreciated.

Help! 500 No configured channel has an endpoint path '/flex2gateway/'

Hello. I have 2 servers running CF 7 and one of my customer's web sites flex app works fine with no config involved. However, the development server gives the following Error when you try and access the app:
500 No configured channel has an endpoint path '/flex2gateway/'.
No configured channel has an endpoint path '/flex2gateway/'.
Can somone please provide some insight as to what needs to be done? Thank you in advance!

You're welcome, good luck.
Sincerely,
Michael
El 30/04/2009, a las 19:28, clearbreak <[email protected]> escribió:
>
Yes. Thanks. I think the problem has to do with the flex-config.xml.
I will let you know if that is the problem. Thank you for your
suggestions and input.
>

CONFIGURE CHANNEL DEVICE TYPE DISK doesn't function

Dear all,
I have a problem with a backup.
Facts:
OS: SunOS hod 5.10 Generic_142901-03 i86pc i386 i86pc
Oracle 11.2.0.1 with RAC
So, Although i put in rman parameters section the CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/rman/backups/%U'; the backup was done but in FRA that is located in
BS Key Type LV   Size       Device Type Elapsed Time Completion Time
36 Incr 0 210.82G DISK 10:32:57 24-JAN-13
BP Key: 36 Status: AVAILABLE Compressed: YES Tag: TAG20130123T210005
*Piece Name: +DATA/db_name/backupset/2013_01_23/nnndn0_tag20130123t210005_0.442.805496407*
List of Datafiles in backup set 36...
ANd my question is:
How, although i configure that the backups would be in /rman/backups/%U this was located in +DATA (fRA) ??
what im doing wrong ??
Thanks for your help.

thanks for your answer: here is my rman script. We invoked the script like this: rman_db_script.sh SID 0
#!/bin/ksh
function email_dba
if [ -s $email_file ]
then
subj="$prog: FAILED on $sid@$box at `date`"
while read dba_id
do
mailx -s "$subj" $dba_id < $email_file
echo "mailx -s "$subj" $dba_id "
done < /oracle/app/oracle/dba/util/motifylist.txt
fi
# set and check
function set_and_check
ps -ef | grep ora_pmon_$sid | grep -v grep > /dev/null
rc=$?
if [ $rc != 0 ]
then
echo "$prog: database $ORACLE_SID is not online" >> $log_file
echo "$prog: database $ORACLE_SID is not online" >> $email_file
# email_dba
exit 1
fi
rtime=`date '+%Y%m%d_%H%M'`
ORACLE_BASE=/opt/app/oracle
ORACLE_HOME=/opt/app/oracle/product/11.2.0/dbhome_1
export ORACLE_HOME
PATH=$ORACLE_HOME/bin:$PATH
export PATH
logdir=/opt/oracle/logs
log_file=$logdir/$prog.$sid.level${bk_level}.log.$rtime
email_file="$logdir/$prog.email.$sid"
cat /dev/null > $email_file
box=`hostname`
orauser=oracle
bk_dir=/rman/backups/$sid
echo "===== `date '+%Y%m%d %H:%M:%S'` $prog: Started =====" > $log_file
backup_type="INCREMENTAL LEVEL $bk_level"
# find $logdir -name $prog.*.log.* -type f -mtime +10 -exec /bin/rm -f {} \;
# find $bk_dir -name ctl.* -type f -mtime +10 -exec /bin/rm -f {} \;
echo "ORACLE_SID=$ORACLE_SID" >> $log_file
echo "ORACLE_USER=$orauser" >> $log_file
echo "ORACLE_HOME=$ORACLE_HOME" >> $log_file
echo "BACKUP TYPE=$backup_type" >> $log_file
return
# backup database and archive logs to disk
function backup_dbs_to_disk
echo "===== Backup $sid to FRA Started At `date` =====" >> $log_file
$ORACLE_HOME/bin/rman nocatalog << rman_cmd >> $log_file 2>&1
connect target
     # se haran en el directorio sgte no en el FRA
     CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/rman/backups/%U';
#CONFIGURE CONTROLFILE AUTOBACKUP ON;
run
ALLOCATE CHANNEL ch1 TYPE disk ;
BACKUP $backup_type
filesperset 10
DATABASE;
sql 'alter system archive log current';
BACKUP filesperset 10 ARCHIVELOG ALL DELETE ALL INPUT;
sql "alter database backup controlfile to trace as ''$bk_dir/ctl.trc.$rtime''";
sql "alter database backup controlfile to ''$bk_dir/ctl.$rtime'' reuse";
RELEASE CHANNEL ch1;
#CONFIGURE CONTROLFILE AUTOBACKUP OFF;
rman_cmd
rc=$?
if [ $rc != 0 ]
then
echo "Backup $sid to Disk Failed At `date`" >> $log_file
echo "Backup $sid to Disk Failed At `date`" >> $email_file
email_dba
exit 1
else
echo "===== Backup $sid to Disk Completed At `date` =====" >> $log_file
fi
return
# delete obsolete backups
function del_obsolete_bk
echo "===== Delete Obsolete Backups Started At `date` =====" >> $log_file
$ORACLE_HOME/bin/rman nocatalog << rman_cmd >> $log_file 2>&1
connect target
ALLOCATE CHANNEL FOR MAINTENANCE DEVICE TYPE DISK;
Report obsolete;
delete force noprompt obsolete;
rman_cmd
rc=$?
if [ $rc != 0 ]
then
echo "Delete Obsolete Backups Failed At `date`" >> $log_file
echo "Delete Obsolete Backups Failed At `date`" >> $email_file
email_dba
exit 1
else
echo "===== Delete Obsolete Backups Completed At `date` =====" >> $log_file
fi
return
# main program
if [ $# -ne 2 ]
then
clear
echo "\nIncorrect argument, ORACLE_SID Backup_Level needed\n"
echo "\nUsage: $0 ORACLE_SID BACKUP_LEVEL(0/1)\n"
return 1
fi
sid=$1
bk_level=$2
diff_cum=$3
# prog=`basename $0`
prog=rman_backup_dbs.sh
export debug='N'
if [[ $debug = 'Y' ]];then set -x;fi
unset ORACLE_SID
unset ORACLE_HOME
unset SQLPATH
ORACLE_SID=$sid
export ORACLE_SID
set_and_check
backup_dbs_to_disk
del_obsolete_bk
echo "===== `date '+%Y%m%d %H:%M:%S'` $prog: Completed =====" >> $log_file
subj="$sid@$box backup completed successfully at `date`"
# while read dba_id
# do
# mailx -s "$subj" $dba_id < $log_file
# done < /oracle/app/oracle/dba/util/backup/scripts/email_dba.list
return 0
# end program
#############################################################################

CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT =SHOW DATE

Hello everyone.
The version I am using oracle 11g
2 questions:
1 .- CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ ora_backup / backupset /% F'; I get error
I want the backup to show the date format, as it can get.
2 .- CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ ora_backup / backupset /% F_.bak';
rename the extension back to. Bak, one can view the SQL SERVER.
Thanks,Bye.

%F is only vaild for controlfile autobackups, there are other elements to store the date:
http://download.oracle.com/docs/cd/B28359_01/backup.111/b28273/rcmsubcl010.htm#i82206
Werner

CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT

Hello everyone.
The version I am using oracle 11g
2 questions:
1 .- CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ ora_backup / backupset /% F'; I get error
I want the backup to show the date format, as it can get.
2 .- CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ ora_backup / backupset /% F_.bak';
rename the extension back to. Bak, one can view the SQL SERVER.
Thanks,Bye.
Edited by: rafelbunyol on 04-feb-2009 5:17
Edited by: rafelbunyol on 04-feb-2009 5:19

Hi,
Probably you were not connected.
Try:
connect target /;
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ora_backup/backupset/%F';
My output on the last command:
new RMAN configuration parameters:
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/ora_backup/backupset/%F';
new RMAN configuration parameters are successfully stored
Regards,
Tycho

Is it possible to access channels on a DAQ board while the device is used by another application?

I am curious if is possible to run an application that reads one channel of a DAQ board while another application already is reading different channels on the board.

Shoe,
You can have more than one application accessing a DAQ board at a time but not for the same type of process, such as analog input. I tried a setup where one program was accessing analog input channel 1 and a separate program was accessing analog input channel 2. Only one program would run at a time. However, you can have an analog input program and a separate analog output program accessing the same board running at the same time.
Hope this helps!

Configuring channel indices on multi-board PCI-4472 systems

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