Is EVS IEEE-1588 capable?

I've been working with a NI PXI chassis with a 6682 card that syncs to the IEEE-1588 Master clock in a Rockwell Automation PLC over ethernet. Can an NI Embedded Vision System (EVS) perform the IEEE-1588 synchronization? If not now, is there a plan to develop this capability?

There is no explicit hardware support for 1588 on the EVS, but the NI-TimeSync plugin with software 1588 support should work. I believe you can expect sub-millisecond performance with the software-based solution on RT systems. See this page ( http://joule.ni.com/nidu/cds/view/p/id/2520/lang/en ) for details.
Eric

Similar Messages

PXI-6682 read IEEE-1588 timestamp from 7953R over RTSI bus

Hi,
I am relatively new to LabVIEW
programming, although I have two years of hard experience using LabVIEW
FPGA tools.
So, I
have a PXI-1033 chassis, and I have plugged in an PXI-6682 IEEE-1588
card into slot 2 and a PXI-7953R card into slot 4. (Random selection
for slot 4) What I am trying to do is read the GPS timestamp from the
6682 card via the RTSI lines directly into the 7953R FPGA card.
Unfortunately, I have no idea where to start and what to read, and all
the examples (keywords: RTSI, IEEE-1588) that I find are for how to
read the IEEE-1588 timestamp inside the Host Operating system and
nothing tells me how to do it directly from the FPGA. My goal is to
build a machine that timestamps network packets that are being read by
the FPGA hosted inside the PXI-7953R card.
Can anybody point me in the right direction? I
basically want to learn more about RTSI, where the PXI-6682 outputs its
IEEE-1588 timestamp, and how data is transferred over the RTSI bus from
inside a PXI chassis.
Thanks,
John

Thanks for the response Alejandro,
I have a 7953R FlexRIO board with the Mimas Prevas Dual Gigabit Adapter Module (http://www.prevas.com/ethernet_simulator.html) plugged in. Ethernet packets enter the Mimas Dual Gigabit Adapter and then go directly to the FPGA as raw Ethernet frames.
From what you are telling me it seems like I cannot have a timestamp go from the PXI-6682 to the 7953R via the RTSI lines and to then be appended to the end of the ethernet frame before being retrasmitted out the other port of the Dual Gigabit Adapter. (With proper recalculation of the 32 bit CRC being done inside the FPGA of course)
I will do some more reading of the manuals and will then call NI Support.
Thanks again!

Ethernet/IP module - IEEE-1588 CIP Sync

Hi,
I have an application where reatime position setpoint is desired (each 0.008sec). I have to talk from a CVS 1459RT (or any cRIO) to Allen Bradley Kinetix Drive. I've read some document and learn that AB use an addon to Ethernet/IP when deterministic application is require which is called CIP Sync (IEEE 1588) protocol.
Does the Ethernet/IP module support this protocol? I think AB doesn't support Ethercat...
I talked to NI and they suggest me to send the position via digital output of the FPGA by simulating an encoder. That is a good idea but is there other way to communicate deterministically? CIP Sync look to be the way ...
Thank you,
Patrick

Hi paubine
According to my understanding, IEEE 1588 only adds syncronization standards to Ethernet/IP. I am not sure if the Ethernet IP Module would give you predifined functions for that, however, I found this example of IEEE 1588 for cRIO.
Community: cRIO IEEE 1588 Synchronization Example
They used basic SMT VIs to build it, so I think you might be able to do the same for the AB PLC.
WenR

Is there a way to view timestamps in DIAdem with a higher precision than 100 microseconds?

I understand DIAdem has limitations on viewing timestamps due to DateTime values being defined as a double value and that this results in 100 us resolution. Is there any way to get around this? I am logging time critical data with timestamps from an IEEE 1588 clock source and it is necessary to have higher resolution. Perhaps I could convert timestamp to a double before logging but then would have to convert it back in Diadem somehow...
Thanks,
Ben

As you said, DIAdem can only display up to 4 decimal positions on a timestamp. Timestamps in DIAdem are recorded as the number of seconds since 01/01/0000 00:00:00.0000. To achieve a higher precision, it would be necessary to use a relative timestamp. Many timestamps are defined from different references anyway, so it might be possible to import the timestamps as numeric values to maintain their precision. Converting the timestamp prior to importing into DIAdem seems like a viable method of working around the precision limit.
Steven

Nexus 9500 : DAI is not supported

Hello
I have DCI network which has double-side vPC configured
so I want filtering for HSRP localization between DCI such as followed configuration
ip access-list HSRP_IP_filter
10 deny udp any 224.0.0.2/32 eq 1985
20 deny udp any 224.0.0.102/32 eq 1985
30 permit ip any any
mac access-list HSRP_MAC_filter
10 deny 0000.0c07.ac00 0000.0000.00ff any
20 deny 0000.0c9f.f000 0000.0000.0fff any
30 permit any any
interface Po4
ip port access-group HSRP_IP_filter in
mac port access-group HSRP_MAC_filter
but DAI is supported in this NX-OS 6.1(2)I3(1)
Do I need to apply DAI ? or if DAI needs, Do you have alternative way instead of DAI?

Seems to be an error on the Nexus 3k product page. We had a customer who purchased these for VPC support.
http://www.cisco.com/en/US/products/ps11541/index.html
Nexus 3500 Features
Ultra-Low Latency
Line-rate layer 2 and 3 switching at ultra-low latencies
Ideal for high-performance trading workloads
Mission-Critical Features
Network Address Translation (NAT)
Virtual Port Channel
IEEE-1588 PTP

Nexus 6000 built in analytics and netflow, how to find information ?

Hi all,
I am just reading about the nexus 6k and found interesting remarks, but could not find any guide on how it work or how to configure.
- microburst monitoring
- switch and network latency monitoring with ieee 1588
http://blogs.cisco.com/datacenter/introducing-nexus-6000-series/
I also found information on sampled netflow on sampled netflow
http://de.slideshare.net/Ciscodatacenter/introducing-nexus-6000-series-switches-for-the-nextgen-data-center-session-from-tuesday-10
I tried to get information on show commands and configuration command, but could not find any information in config guides, command references, search engines ...
Are there any information available ?
Are thes features hardware capabilities but not implemented in software, now ?
I will be interested to get more information on that topics for nexus.
Thank's and best regards
Alois

Hi,
Sorry, I just found information.
http://de.slideshare.net/Ciscodatacenter/introducing-nexus-6000-series-switches-for-the-nextgen-data-center-session-from-tuesday-10
slide 9 *-features on sw-roadmap.
Thank's and best regards
Alois

Do IMAQdx and NI hardware support GigE Vision 2.0?

Hello,
From my brief research, GigE Vision 2.0 has some very nice features I'm after that aren't supported by the earlier GigE Vision 1.x standards:
Camera-side compression
IEEE 1588 (PTP) synchronization and timestamping
Does NI currently support these? If not, are there any plans to add support in the near future?
Thanks!

Hi Eric,
Thank you for your informative reply.
Perhaps I've been trying to solve an XY problem, so I'll explain my context.
I have a customer who wanted 1280 x 1024 images, saved to disk at 30 fps, from 4 cameras simultaneously. Each image is to be associated with a GPS time and position, so that the image can be correlated with other data sources (the system also performs other live measurements). He doesn't need raw uncompressed data, so we acquired 8-bit colour images and then saved them as JPEG files.
The customer chose a GigE camera, so we built him a system with 2x PXIe-8234. We noticed that the PXIe-8820's CPU was barely keeping up with the compression, so we upgraded to a PXIe-8135 controller. This controller handled the load comfortably.
For the timestamps, I simply logged the GPS time at the instant I called the IMAQdx Grab VI. There's a bit of uncertainty involved, but it's acceptable. I guess IEEE 1588 level precision isn't necessary after all.
Now, the same customer wants a new system which captures 1900 x 1200 images from 6 cameras simultaneously. I'm not sure if the CPU can handle the load (and we don't currently have a camera to run tests with, unfortunately), so I was looking at ways to reduce the CPU load. Camera-side compression came to mind, and I assumed that I can write the pre-compressed image directly to disk as a JPEG file. (I haven't yet checked to see if the disk can handle the required write speeds, but that's a separate issue)
We are open to other protocols though. Would you recommend something other than GigE Vision? (No hardware has been selected yet, so we'll probably select based on the chosen protocol)
Thanks again!

Monitor IEEE1588 network two 6682 boards

Hello,
I have a distributed application synchronized by means of IEEE 1588 over a switched network. In order to monitor the health of the network, I use two PXI-6682 boards, one acting as a master clock and the second as slave connected through an Ethernet switch and monitor the time jitter between a 1PPS signal generated on both boards. This would ideally be a feature of my master clock node itself for which I would ideally fit the two 6682 boards in the same chassis, configure one as master clock, the other as slave clock and connect both to my Ethernet switch.
The PXI controller gets confused if I insert the two boards on the same chassis. I have not found any information on how to manage this configuration or whether this is altogether possible.
B.

Hello,
Thanks for your input. I appreciate your help. I needed to do something a bit different but it eventually solved the issue:
On the XP Device Manager ,
- Uninstall the two PXI-6682 devices under Data Acquisition Devices
- Uninstall the two AMD devices under Network adapter
- Scan for new Hardware
- Disable the two PXI-6682 devices under Data Acquisition Devices
On MAX,
- Delete the broken PXI-6682 under NI-DAQmx Devices
On the XP Device Manager,
- Enable the two PXI-6682 devices under Data Acquisition Devices
On the good side, the issue is solved and the configuration survives the controller reboot. On the other side, I am very worried about having to apply such tricks to get this system working.
Cheers,
B.

Nexus 3548 couldn`t enable vPC feature

Hello All,
I have to implement to 2 Nexus 3548 switches for a customer. The customer like to use it as core-switch (small LAN) and also like to run VPC feature. Now I have tried to active it, but I got the follow error message:
Enter configuration commands, one per line. End with CNTL/Z.
chefan-swi01(config)# feature vpc
Error: vPC feature is not supported
Is their a way to get VPC working on these plattform?
Software
BIOS:      version 1.9.0
loader:    version N/A
kickstart: version 5.0(3)A1(1)
system:    version 5.0(3)A1(1)
power-seq: Module 1: version v2.1
BIOS compile time:       10/13/2012
kickstart image file is: bootflash:/n3500-uk9-kickstart.5.0.3.A1.1.bin
kickstart compile time: 11/2/2012 1:00:00 [11/02/2012 09:53:29]
system image file is:    bootflash:/n3500-uk9.5.0.3.A1.1.bin
system compile time:     11/2/2012 1:00:00 [11/02/2012 10:27:12]
Hardware
cisco Nexus 3548 Chassis ("48x10GE Supervisor")
Intel(R) Pentium(R) CPU @ 1 with 4140896 kB of memory.
Processor Board ID FOC17480ZHN
Device name: chefan-swi01
bootflash:    2007040 kB
Thx a lot for any suggestions.
Kind Regards, Ferdi

Seems to be an error on the Nexus 3k product page. We had a customer who purchased these for VPC support.
http://www.cisco.com/en/US/products/ps11541/index.html
Nexus 3500 Features
Ultra-Low Latency
Line-rate layer 2 and 3 switching at ultra-low latencies
Ideal for high-performance trading workloads
Mission-Critical Features
Network Address Translation (NAT)
Virtual Port Channel
IEEE-1588 PTP

NI6682H using IEEE1588 Clock to synchronize Boardtime

Hello,
I'm working with NI 6682H. I want to use IEEE 1588 Clock to synchronize the board time.
If I understand correctly I've to configure it for SLAVE.
What I don't understand is how I can do it.
I've seen through the examples and wrote some code, which works but the Clock is running as MASTER.
My second question would be: how/where can I specify the Source for the MASTER-Clock (URL, IP, ...).
My thrist question: where can I find the MAC Adresse of the RJ45 Port on the Module. I didn't finde it MAX or VI/Propertynodes.
best regards
christian

Hi Christian,
yes i think you've understand it correctly but you need an IEEE 1588 Master, if you want to use the NI6682 Module as Slave.
I've attached you a Master VI and a Slave VI. There you can see that the Master is using the "Send Time to UDP" function and the Slave the "Get Time from UDP" Function.
You don't need to specify the Source of the Master Clock, because for the communication the UDP Protocoll is used. The Master and the Slaves only need the same UDP Port to communicate together.
http://www.ni.com/white-paper/4950/en/
I think you can find the MAC-Address of the Module on a Label that is attached to the 6682H Card. And i found an example to programmaticly get the IP & MAC Address: https://decibel.ni.com/content/docs/DOC-15459
Regards,
Stefan
Attachments:
Generate Sync Clock-Slave.vi ‏32 KB
Generate Sync Clock-Master.vi ‏67 KB

Best way to communicate with IEEE device

Hi everyone;
I'm using a Magtrol DSP6001 Dynamometer Controller to control a
dyno. It's GPIB, and I'm able to communicate with it swimmingly,
and I've used it it a number of other apps that I've written.
My problem now is, that I need to be reading the device as fast as
possible, but at the same time, setting the torque at regular
intervals. Here's a better explaination:
I'm controlling a stepper motor (which is the main problem, as all the
other motors I have written apps for using this equipment have been
brushless servos) for an acceptance test, and part of the test requires
that the torque be ramped up gradually until the motor starts missing
steps, and the torque at which this happens is recorded. The
problem is, in order to accurately record the torque value, I need to
be reading the device constantly (not a problem, as the controller is
capable of providing 100 samples/second), but at the same time
gradually increasing the torque.
You can see where the problem arises... if I were to multi-thread
this vi, then I would get randomly occurring IEEE errors, but if I have
the data acquisition in the same loop as the torque increase, then I
don't get nearly enough accuracy. Is this something that a
semephore would be useful for? I have heard something about the
IEEE bus being able to handle some sort of syncronization, but I don't
know much about that...does anyone else?
Has anyone else had this sort of problem before?
Thanks, Geoff
Notes: I'm running the controller in open loop mode... for two
reasons. One, it's easier to have a smoother ramp in open loop by
the nature of the commands used to communicate with it, and two, trying
to obtain the PID settings for this motor was getting to be an absolute
nightmare, and I don't think it worth the time, as it's just a ramp,
not a constant torque. Or am I wrong in thinking that?

Thanks for the reply, but I suppose I should have been more clear... it doesn't exactly answer my question.
I have two loops, both of which need to communicate with the
controller. One loop (top in the image) I need to run several
times faster than the bottom loop, as I need greater accuracy in the
readings (more samples).
The bottom loop will run not as fast as possible - as the top loop will
- but will run every say, 20 milliseconds. You might be asking
why that's not in the image, but that's just the bare bones of what I'm
trying to do.
I can't leave them to their own devices as is, since I'll get random
GPIB errors because both might be trying to write at the same time, or
one might write before the top has read, and then the read will return
an error.
I was just wondering what the best way to go about doing this
is... I'll try using queues to do this type of operation, sorta
like you suggested.
Has anyone ever heard of GPIB being able to do synchronized
communication? (as in, is there a way to have two pieces of data,
one being written and one being read, from the GPIB bus at the same
time? Like, being able to read what's been returned by the
controller, but at the same time writing a new command to the bus?)
Message Edited by Novatron on 07-28-2005 03:49 PM
Attachments:
Example.jpg ‏89 KB

National Instruments PXI with IEEE 802.15.4 standard (ZigBee)

Bonjour,
En fait, je travaille sur un projet qui a pour but d’implémenter un émetteur/récepteur Zigbee en bande de base reconfigurable sur la plateforme d'évaluation XUPV5-LX110T qui embarque un Virtex 5. Je suis actuellement dans la phase de test réel.
Premièrement, Je veux envoyer mes données venant d’un pc vers un FPGA et de les recevoir (pour traiter mes signaux sur Matlab). Est-ce-que cette tâche est faisable ou non ? Y a-t-il une solution pour ça en utilisant un média de communication (la liaison série par exemple)
Deuxièmement, Y a-t-il un équipement de mesure et de test de National Instruments à l’aide des PXI qui supporte le protocole sans fil Zigbee ou autrement la norme IEEE 802.15.4 (à savoir RF Vector Signal Generator et Vector Signal Analyzer) de la partie frontale analogique que ce soit en émission ou en réception?
Et merci d’avance pour tout le monde.
Hello,
In fact, I'm working on a project which aims to implement a reconfigurable Zigbee tranceiver on XUPV5-LX110T Evaluation platform which integrates a Virtex 5 FPGA. I am currently in the phase of real test.
First, I want to send my data from a PC to FPGA and receive it (to treat my signals on Matlab). Is this possible or not? If yes, Is there a solution for it using a medium of communication (e.g. serial link)
Second, is there a measuring equipment and testing National Instruments using PXI which supports the Zigbee wireless protocol or otherwise IEEE 802.15.4 standard (i.e. RF Vector Signal Generator and Vector Signal Analyzer) of the analog front-end either in transmission or reception?
And thanks a lot in advance for everyone.

Hello,
I am not sure what data you will be collecting, or how you intend on using the board. Perhaps you can explain your application a little bit more?
Is the FPGA code already developed for your application with the XUPV5-LX110T board? As long as the developed FPGA code is able to communicate with your PC via whatever protocol you choose, then you can use that as a channel to send data back and forth. Since the board is capable of many different I/O connections, you can pretty much sending/receive data over which ever connection you prefer, Ethernet, RS-232, etc.
Just to clear up any confusion, if you do not already have FPGA code for the board, this is not something you would be able to develop with LabVIEW FPGA programming. The XUPV5-LX110T board is not supported for programming its FPGA using LabVIEW FPGA. You can however, program in labVIEW to communicate data back and forth with the I/O you have chosen to connect with to your PC, such as Ethernet or RS-232, as mentioned above.
As far as measuring equipment NI offers for testing with the Zibee (IEEE 802.15.4) wireless protocol in the PXI platform, if your application requires you to both transmit to, and received from the board, and then you would need either both a Vector Signal Generator and Vector Signal Analyzer, or a Vector Signal Transceiver. See the list below for some examples of what we have to offer.
VSAs: NI PXI-5661, NI PXIe-5663E
VSGs: NI PXI-5671, NI PXIe-5672/5673E
VSTs: NI PXIe-5644R/5645R/5646R
From my knowledge of ZigBee, you would be capable of communicating with the board using any of these devices.
Matthew R.
Applications Engineer
National Instruments

IEEE 1934 devices report as being Offline in Capture Mode

I recently found the need to capture video. I had an OHCI compliant IEEE 1934 card professionally installed. Windows recognizes the card and reports it as working properly. When I connect a Firewire device, windows recognizes a device had been attached and detached when I disconnect which indicates the cables and connections are fine.
I have three Firewire devices, two of which are on the Device Setup list located in the Capture Preferences of Premiere 2.0. They include:
JVC HR-DVS2U
Panasonic AG DVX-100
My third device is a Cannon ZR45 MC and while I understand only the ZR40 and ZR50 are listed, I figure the functionality would be so similar, that the ZR45 would have at best limited support within Premiere.
All devices report as being Offline. I’ve read the manual and went through each step more than 4 times with each device and the conclusion is the same. Might there be a step within Windows that I need to perform first?
Dual Pentium Xeon 2.4Ghz
Windows XP Pro, Service Pack 2
3 GB RAM
Premiere 2.x

I would like to thank everyone for taking the time to help answer and troubleshoot my problem.
When researching the web for answers, to include Microsoft’s web site, I discovered many people had the same issues, but for different reasons. Most seemed to stem from service pack or updates received in Vista. Some derived after upgrading from XP Home to XP Pro. I kind of thought this was my issue since all my IEEE devices work with XP home on a very old Sony laptop, but not XP Pro on a rather capable workstation. In the literally hundreds of pages, posts and articles I read through, none of them helped me and according to most who have posted trouble with devices unseen by Windows or offline by any number of different editing aps, there were no fixes. My solution came quite by accident.
I don’t know if this is typical for all OHCI compliant cards not installed by a computer manufacturer, but the one I have comes with a utility called The Switch. It enables one to use either it’s built in drivers that are used by default, or Windows drivers. When I used The Switch, the Installation Wizard auto detected the Canon, and began installing about 7 drivers at the end of which, Premiere saw and manipulated the cam. I tried the same thing for the JVC. All but one driver (T.V. Tuner) was installed, however Premiere still recognized and controlled the deck. Due to time restraints, I only tried playback, shuttle, pause and stop, but there should be no reason capture won’t work.
I hope this helps others who are experiencing device offline issues. I urge you to post your solutions even if they are different from mine.

HWIC-4ESW capable of DSCP marking?

Hello. Does anyone know if the HWIC-4ESW card is capable of classifying traffic and marking DSCP values on those packets?
Thanks,
Mike

Hello Mike,
this is from the relevant Q&A: QoS to DSCP mapping is supported:
Q. What features are supported on the Cisco EtherSwitch HWICs?
A. The following features are supported on the Cisco EtherSwitch HWICs:
Up to 15 individual VLANs per 4- or 9-port Cisco EtherSwitch HWIC
IEEE 802.1Q tagged and untagged VLANs
Virtual Trunking Protocol (VTP) support for client, server, and transparent modes
Layer 2 MAC-related feature support:
Secure MAC addresses
Static and Dynamic MAC addressing
2000 MAC addresses
Port application support
SPAN port monitoring
Per-port storm control for broadcasts, unicasts, and multicasts
QoS feature support
IEEE 802.1p class-of-service (CoS) priority for 802.1Q tagged frame
Port-based priority for native frames
Port priority to overwrite the IEEE 802.1p priority
Strict priority and Weighted Round Robin CoS policies
CoS-to-differentiated services code point (DSCP) mapping
Internet Group Management Protocol (IGMP) snooping
Network Time Protocol (NTP) support
IEEE 802.1D spanning tree and Spanning Tree Protocol PortFast
Secure port filtering (200 secure MAC addresses)
Simple Network Management Protocol (SNMP) support
Telnet client and server support
Cisco Discovery Protocol Versions 1 and 2 support
Fallback bridging
802.1x authentication
IEEE 802.3af-compliant PoE
Q. What features are not supported on the 4- and 9-port Cisco EtherSwitch HWICs?
A. The following features are not supported on the Cisco EtherSwitch HWICs:
Layer 3 switching (this is done through the router)
Dynamic VLAN for access port
VTP pruning
Network port
Routed port
Per-port enabling and disabling of unknown multicast and unicast packets
Cisco Group Management Protocol (GMP) client
Rate limiting
Cisco Cluster Management Suite (CMS) support
HTH,
GP

Alternative IEEE drivers for the P6N SLI Platinum?

Long story short, now that I upgraded to Windows 7 (64bit), I can't stream video from my camcorder to my computer anymore, however it turns out that my camcorder also supports firewire, and wouldn't you know, so does my P6N! Or so I thought at least.
I buy a firewire cable and plug my camcorder into my comp... nothing. I figure the cable is bad so I buy a new one. I plug it in and... nothing. So I try to install some software from the website (The camcorder is a Sony Handycam DCR-HC20) and... nothing.
Sony's telling me to go bug windows, where as Windows is telling me to go bug Sony, however the only other problem I see hinted at when i search for solutions is that perhaps the drivers im using for my firewire ports are bad, so I need different ones. The thing is i don't know where to go to get reliable IEEE drivers, so I guess it'd be best to ask you guys.
Here's a rundown of my comp:
Windows 7 64bit (However chances are if any solution works for Windows Vista 64bit, it WILL work for Windows 7, so don't be shy about any solutions you may have)
P6N SLI Platinum
Handycam DCR-HC20
Oh yeah, i'm not sure which BIOS i'm using, however I don't recall ever flashing it so i would assume its the one that it was shipped with.
Thanks you for your time.

Quote from: DaLoona on 16-August-09, 21:54:16
Maybe a silly question, but did you connect the firewireconnection on your motherboard to the port on your case?
Hahaha, its all connected but i can imagine someone doing that, haha.
All kidding aside though, now that I think about it my computer only recognizes 2 firewire ports when there's 3 (one on my soundcard, 1 on the motherboard itself, and the extra one that I plugged in myself that came with the motherboard).
I guess I could fiddle with the added one but is there any reason why the firewire port on the actual motherboard itself wouldn't register my hardware being plugged in? I really wish I had another computer I could test it on, or at least something else that's firewire capable but I can't find anything, so the only other thing I can think of is the port on the camera is dead, which I SEVERELY doubt because its in perfect working order and hasn't been used that often in the few years that i've had it.

Is EVS IEEE-1588 capable?

Similar Messages

Maybe you are looking for