Kollmorgen AKD modbus or Telnet over ethernet TCP

I'm a beginner using LabWindows CVI. I have a Kollmorgen AKD driver that can communicate via Ethernet using either Telnet or Modbus protocol. To make sure the hardware works, I downloaded the Kollmorgen WorkBench Software onto my laptop and went through the QuickStart guide. I set my laptops address to a static id (192.168.0.100) and then set up the Kollmorgen driver to have a static id of (192.168.0.26) using the two rotary switches (S1 and S2). In this case, I chose 2 and 6. I connected my PC to the driver using the Workbench software and was able to successfully spin the motor ccw and cw. I also was able to move the motor to specific locations (90, -90, 180, etc) in relation to the set 0 position. The Kollmorgen software uses the Telnet protocol.
How would I go about connecting my PC to Kollmorgens AKD driver using Modbus/Telnet via Ethernet on LabWIndows CVI? Is there a modbus library or special functions?
I went to the Modbus website and did not find any examples...
Any help would be much appreciated.
Badra

There are free LabVIEW Modbus libraries, but these are API's built for LabVIEW:
http://zone.ni.com/devzone/cda/epd/p/id/4756
https://decibel.ni.com/content/docs/DOC-30140
There actually is a push to implement Modbus protocol support in CVI, and you can add your thoughts to the discussion here:
http://forums.ni.com/t5/LabWindows-CVI-Idea-Exchange/Implement-Modbus-RTU-TCP-protocol-support/idi-p...
The Idea Exchange forum is used by R&D in order to help implement new features requested by customers in later releases. You can also try using a free C library that does Modbus protocol, since CVI utilizes C code. An example would be libmodbus:
http://libmodbus.org/documentation/
There is also this community example which implements Modbus RTU programming over RS232 in CVI:
https://decibel.ni.com/content/docs/DOC-15734
Daniel K | NI Applications Engineer | Certified LabVIEW Developer

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Modbus over ethernet

Is Modbus over ethernet available in labview?

Yes.
http://sine.ni.com/nips/cds/view/p/lang/en/nid/201711

Choosing the Right Network Protocol for CRIO 9024 to PXI over Ethernet

We are in the design phase of setting up a CRIO 9024 Embedded Controller to send data captured to a PXIe-8105 Controller over ethernet. The data will be be 2D arrays of double precision. This data will need to be sent to the pxi at the end of each test step. Each step will have different number of channels and sample rates.
For example, Test Step 1 will have 5 channels of Analog inputs that will be sampled at 100,000 KHz for 1 second. This data will be coming from the CRIO FPGA. The data will get post processed by the CRIO 9024 and analyzed for pass or fail metrics. Then, the CRIO controller will send the 2D Array of Data (500,000 data points 5 X 100,000) and the results of all the metrics (a 1D array) to the PXI.
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I was thinking TCP/IP would work best because of the 2 way communication needed. But then I was looking at Network Streaming or even using Shared Variables.
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CLAD
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Solved!
Go to Solution.

Hi,
You could use either. Whichever you are more comfortable with really. The STM method will have slightly less overhead over my XML style of tagging the data but it will be very little given the data size. Probably go with STM as it just has most of the work done for you.
In terms of data size the way you should normally transfer data like this is to flatten to string. If you convert to a string of human readable numbers you will either lose precision, increase size or both. Given that, the string after being flattened will be the same size as the original array anyway so quick calculation based on your previous post 500,000 doubles (8 bytes) is 4 miB (3.8MB)
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James Mc
========
CLA and cRIO Fanatic
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have iTunes on a PC (no wireless card) connected to an AirPort Extreme base station via an ethernet cable. I have an AirPort Express connected as a client to the AirPort Extreme's wireless network. The AirPort Express is also connected via mini to RCA cord to my stereo. I would like to use AirTunes to stream music from iTunes on the PC to the stereo, but can't seem to figure out how to do it. Any thoughts?
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This suggestion from MacFixit and an upgrade to iTunes 7.7.1 solved the inability to stream music to an Airport Express from iTunes on an ethernet-connected computer.
Music will not stream through AirPort Express Some users have reported that streaming music through AirPort Express units fails after the update. The most common fix for this issue involves changing your IPv6 settings. In order to change this setting, open System Preferences then the Network pane and click on your currently used interface (Ethernet, AirPort, etc.). Click on the TCP/IP settings for the interface -- at the bottom if you see a button which says 'Configure IPv6...' click it make the setting "Off." Press the Apply Now button.

Detect device over ethernet

Hi Everyone,
I would like to know how do i detect device connected over ethernet by using labVIEW?
My require is:
I have to develop a code which detect any device connected to ethernet port.(The external device which is connected to ethernet port may be anything)
I would like to get the IP of the device connected to my ethernet port using labVIEW.
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A brute force method which is commonly used is to send a ping packet to every IP address in the subnet(s) you are interested in. This is not guaranteed to work since some devices will not reply to ICMP ping packets for security reasons. Another approach which again guaranteed to work and will more likely find fewer devices would be to send a SNMP request for the system description (1.3.6.1.2.1.1.1.0) . If a device supports SNMP they will generally respond to this request.
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I'm not trying to rain on your parade but trying to let you know that you are trying to accomplish something that will most likely impossible to actually do. Probably the most effective way, but not very practical, to at least find eveything would be to implement a port scanner that would exhaustively go through every IP address in your desired range and attempt to establish a connection on every TCP port (you could stop once you get a response). If a device is on the network it more than likely will communicate on at least one TCP port. All this would tell you though is that there is a device at that IP address that communicates using port x. However, as I cautioned before this type of activity will very quickly get the attention of the network staff managing the network you do this on.
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Wreck of the Edmund Fitzgerald - Gordon Lightfoot

Telnet over TMG

i have enabled telnet on a public IP published by TMG on port 25
i removed the fire wall rule that was made for that and i am still able to telnet ?!
i waited for some time
configured telnet on another IP , and i am not able to telnet on the new IP wail still able on the old REMOVED one ?!
i restarted TMG control service which restart all other services , and i am still getting the same result
is this a bug or what ?

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protocol.
So your rule would be:
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From: Internal
To: External
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Users: All Users
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in the Rule List,...and if that was the case your Mail would be using that Rule as well instead of using the actual SMTP Rule it should have been using.
In other words you can't have two Rules that effectively do the same thing,...if you do so, only the one higher in the Rule list will be used and the lower one will be ignored,...regardless of whatever you may have intended.

Software enable for Kollmorgen AKD using LabVIEW

Hey all, I'm relatively new to motion control, and feel like I must be missing something...
I have a PXI chassis with a 7350 card connected to a Kollmorgen AKD as described in the Getting Started guide. I can get the system to move through MAX, and I can enable the hardware through the LabVIEW Enable Axes.flx vi from the NI 73xx palette. But, I haven't found any way to do a software enable from LabVIEW... it only works through the Kollmorgen software.
Is there a way to do the software enable from LabVIEW? I haven't found anything in my searches so far.
Thanks,
Joe Z.
(trying to quit LabVIEW, I swear)

The only way to software enable the drive from LabVIEW is via a digital bus (EtherCAT, Modbus, etc). In general, you only want to use either the hardware enable OR the software enable, not both. In your situation, you should be using the hardware enable and you should use Kollmorgen WorkBench to set the drive to be software enabled at startup (on the Enable/Disable menu).
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Paul B.
Motion Control R&D

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How do I set up multiple Airport Expresses to connect over ethernet for Airtunes only?

I am trying to set up an Airtunes network using an Airport Extreme and three Airport Expresses connected together via ethernet (CAT5 cable). At each Airport Express there will be a speaker setup. I don't need/want internet connectivity on the network, but not sure if it is required for setup or not. I have made this work over wifi, using the Expresses to extend the network, but struggling to get this to work over ethernet.
I would be verry grateful of a step-by-step method to setting this up! I am also looking to set up 6 airport expresses to do the same thing in another location.
Thanks in advance!

Thanks for the info.
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Click directly on the AirPort Express
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Mapping to disk on Airport Extreme's USB port from G5 over Ethernet

I just set up my Airport Extreme network, with multiple machines (Windows XP, Vista, Mac G5, iPad and iPod Touch) sharing the internet connection via both Ethernet and WiFi without any problem.
My XP and Vista machines are connected via WiFi, and I was asked to supply the shared disk's password, and once I provided it, I was able to see the drive attached to the USB port on the Extreme.
My Mac G5 is connected to the Airport via Ethernet. It never asked me for the shared disk's password, adn I could not see the drive in Finder.
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Any suggestion on how to map to the shared drive over Ethernet will be greatly appreciated.
It really shouldn't make any difference whether the G5 is connected by Ethernet or wireless, the AirPort Disk should be "visible" in the Finder sidebar.
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BUG: Mail (GMAIL IMAP) no longer connects over ethernet, only wireless

I too was puzzled last night when I couldn't get my gmail account to go online. I did a lot of reading, and tried various things (to no avail), but ultimately decided it was just a configuration error, or combination of other programs running...or maybe even (as read in other posts) Google's servers. I found the server problem unlikely though, since I could also log in via the web interface.
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Model Name: MacBook Air
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HT3231 Is it better to migrate to a new MacBook Pro using FireWire, from Time Machine, or over ethernet?

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ITunes 7.1 doesn't recognize Airport Express over ethernet

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iBook G4 and assorted Win & Linux boxes Mac OS X (10.4.8) iTunes is on an XP PC

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******Quote***********
Looks like this issue is due to an incompatibility between Bonjour for Windows and iTunes 7.1.0.59 for Windows (thanks toonz!)
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*****End Quote**********
iBook G4 and assorted boxen Mac OS X (10.4.8) iTunes is on an XP PC

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Hello all, hope you are doing great.
I'm planning to deploy PPPoE Server (Cisco Router 7609) for a ISP. This ISP will provide Internet connection for customer over Ethernet.
I have to provide a solution to assign bandwidth to each customer by RADIUS and I find some clues that Dynamic Bandwidth Selection (DBS) should be the answer. Unfortunately, DBS only support PPPoA or PPPoE over ATM.
If you have any experience with equivalent function, please help me. Thank you very much.
Regards,
Hiep Nguyen.

Hiep,
I think I have figured this out. Here is the test config on my PPPoE server:
int lo1
ip address 172.25.25.25 255.255.255.255
ip radius source-interface Loopback1
aaa new-model
radius-server host 172.16.1.55 auth-port 1812 acct-port 1813 key cisco$$$
aaa group server radius RADIUS-ACT
server 172.16.1.55 auth-port 1812 acct-port 1813
aaa authentication login default group RADIUS-ACT local
aaa authorization exec default group RADIUS-ACT local
aaa accounting exec default start-stop group RADIUS-ACT
aaa accounting delay-start
aaa authentication ppp default if-needed group RADIUS-ACT local
aaa authorization network default group RADIUS-ACT local
aaa accounting network default start-stop group RADIUS-ACT
aaa accounting update periodic 5
bba-group pppoe global
virtual-template 1
interface fa0/1
pppoe enable group global
ip address 172.30.0.1 255.255.0.0
no shut
interface Virtual-Template1
mtu 1492
ip unnumbered FastEthernet0/1
peer default ip address pool GLOBALPOOL
ppp authentication chap
ip local pool GLOBALPOOL 172.30.0.2 172.30.127.255
policy-map POLICE-128K
class class-default
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policy-map POLICE-512K
class class-default
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Here are the attributes on the radius server, for a group the PPPoE customer belonged to:
Service-Type = Framed
Framed-Protocol = PPP
cisco-avpair="ip:sub-policy-In=POLICE-128K"
cisco-avpair+="ip:sub-policy-Out=POLICE-512K"
Here is the show policy-map on the virtual-access interface the client connected on:
sho policy-map int virtual-a 3
Virtual-Access3
Service-policy input: POLICE-128K
    Class-map: class-default (match-any)
      1000 packets, 1402000 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: any
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        conformed 0 bps, exceed 0 bps
Service-policy output: POLICE-512K
    Class-map: class-default (match-any)
      911 packets, 1137746 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
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        exceeded 0 packets, 0 bytes; actions:
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        conformed 0 bps, exceed 0 bps
I was able to generate enough traffic with ping to meet the exceed action in and have it drop packets.

Streaming Problem - incomplete over ethernet

Hi there,
I have a problem with the streaming over ethernet from my Intel iMac, connected by ethernet to my Netgear WGR614v6 router, to my AppleTV (also connected to the router by ethernet).
My iTunes library is around 120 GBs so I have chosen to stream the majority of my content and only sync the content that I cannot stream (photos). Most of my streaming seems to be OK but bizarrely there are a couple of items that I have updated in my iTunes Library that are not reflected on the AppleTV. These appear to be quite random and are not related (as far as I am aware) to problems with encoding.
Basically I have a podcast subscription which I cancelled in my iTunes library which still appears on my AppleTV, I have a home movie (originally on VCD) in my iTunes Library which is not appearing on the AppleTV and I also have a couple of albums (encoded as VBR 250kbps .mp3 files) that are not appearing on the AppleTV.
I have re-booted the iMac various times and done 2 factory restores of my AppleTV. Is there anything else I can do? Somehow I think the AppleTV just needs to be forced to re-examine the contents of my iTunes library?
Any help or tips much appreciated.
regards
Raf

Dear Winston and capaho - thanks for your quick responses.
ROUTER - I did see some posts about issues with Netgear routers but they were all related to wireless connectivity issues. I am having no problems at all with streaming at sufficient rates and I imagine that issues with Linksys and Netgear routers pop up frequently because they seem to be ubiquitous devices for home users.
FILE DELETION - I did check that the podcast from which I had unsubscribed really was deleted (and it was indeed gone) and I did check that the albums and home movie (.mp4 file as are all of my other movie files) was indeed present in my library.
ITUNES LIBRARY.XML - I have identified this as the root of my problems because this .xml file still contains references to the old deleted podcast files and it does not contain references to the media I am missing.
It appears that iTunes Library.xml corruption is a very common problem (seeing the number of posts on the "using iTunes for Mac" forum) and that is the source of my problem.
Now to do some testing!
thanks again
Raf
UPDATE: I quit iTunes, backed up and then deleted the .xml file from my "Music" folder in Mac OS X. When I next started iTunes it created a new .xml and this seemed to do the trick!
Message was edited by: Rafael Sanchez

Kollmorgen AKD modbus or Telnet over ethernet TCP

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