Group: DynoMotion	Message: 8545	From: ericncn	Date: 10/28/2013
Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT

That cable looks much longer than one foot!   How long is it? If the solution is this "connector with a capacitor", is it something that you could supply or that could be purchased elsewhere? Hoping I'm not going OT but what about cable lenght for the KAnalog? My only realistic way to add either a Kanalog or a Konnect to my system, would be via a long cable (over 1 meter, so I could reach the door and the door could still fully open) EC ---In DynoMotion@yahoogroups.com, <dynomotion@yahoogroups.com> wrote: Hi Mac, Ideally the cable would be less than 3 inches.  A foot or more I would consider long. Ribbon cable has a lot of parasitic capacitance between wires.  We found an issue where signals on "long cables" can couple to KFLOP's Reset signal and cause intermittent KFLOP Resets.  Adding a capacitor (0.001uF Ceramic) near KFLOP between Reset and GND will solve the problem.  Having one Konnect board near KFLOP will also solve the problem.  The capacitor can be added to any KFLOP connector.  Here is a video (somewhat poorly recorded) showing 4 Konnects (196 I/O) on a long cable.  Note we added a connector with a capacitor into KFLOP JP4. http://dynomotion.com/Videos/Konnect4.mp4 Regards TK Group: DynoMotion Message: 8546 From: ericncn Date: 10/28/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT I meant, the cable in the video   ---In DynoMotion@yahoogroups.com, <dynomotion@yahoogroups.com> wrote: That cable looks much longer than one foot!   How long is it? If the solution is this "connector with a capacitor", is it something that you could supply or that could be purchased elsewhere? Hoping I'm not going OT but what about cable lenght for the KAnalog? My only realistic way to add either a Kanalog or a Konnect to my system, would be via a long cable (over 1 meter, so I could reach the door and the door could still fully open) EC ---In DynoMotion@yahoogroups.com, <dynomotion@yahoogroups.com> wrote: Hi Mac, Ideally the cable would be less than 3 inches.  A foot or more I would consider long. Ribbon cable has a lot of parasitic capacitance between wires.  We found an issue where signals on "long cables" can couple to KFLOP's Reset signal and cause intermittent KFLOP Resets.  Adding a capacitor (0.001uF Ceramic) near KFLOP between Reset and GND will solve the problem.  Having one Konnect board near KFLOP will also solve the problem.  The capacitor can be added to any KFLOP connector.  Here is a video (somewhat poorly recorded) showing 4 Konnects (196 I/O) on a long cable.  Note we added a connector with a capacitor into KFLOP JP4. http://dynomotion.com/Videos/Konnect4.mp4 Regards TK Group: DynoMotion Message: 8547 From: yanvrno@frontier.com Date: 10/28/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Tom: Guess I missed where or if you addressed these questions "Does this come with a cable or is one available on your site?" "Will this work with the KFlop/Kanalog combination?" Mac > --- In DynoMotion@yahoogroups.com, Tom Kerekes <tk@...> wrote: > > Hi Mac, > > Ideally the cable would be less than 3 inches.  A foot or more I would consider long. > > Ribbon cable has a lot of parasitic capacitance between wires.  We found an issue where signals on "long cables" can couple to KFLOP's Reset signal and cause intermittent KFLOP Resets.  Adding a capacitor (0.001uF Ceramic) near KFLOP between Reset and GND will solve the problem.  Having one Konnect board near KFLOP will also solve the problem.  The capacitor can be added to any KFLOP connector.  Here is a video (somewhat poorly recorded) showing 4 Konnects (196 I/O) on a long cable.  Note we added a connector with a capacitor into KFLOP JP4. > > http://dynomotion.com/Videos/Konnect4.mp4 > > Regards > TK > > > > ________________________________ > From: "yanvrno@..." <yanvrno@...> > To: DynoMotion@yahoogroups.com > Sent: Monday, October 28, 2013 6:10 AM > Subject: [DynoMotion] Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT > > > >   > > Does this come with a cable or is one available on your site? > How long is too long? Can it mounted on the hinged cabinet door. (limited space now) > > Will this work with the KFlop/Kanalog combination? > > Looking forward to having the additional 24 volt I/O > > Mac > Group: DynoMotion Message: 8550 From: Tom Kerekes Date: 10/28/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Attachments : ExtendedVirtual-8550.png Hi Tapio, It isn't necessary to use board address 1.  You can configure KFLOP to map any board's IO to any Virtual IO. See the function - AddKonnect: // Board address, address of 32-bit into to get the Output Bits (in low 16 bits), address of where to put 32 Inputs void AddKonnect(int BoardAddress, int *OutputAddress, int *InputAddress);  // add a Konnect Board to list of AUX Port Boards to be serviced Test Version 4.31n also includes a new Digital I/O Screen - Virtual IO bits (see attachment).  It will display 64 Extended Virtual IO bits anywhere in the 1024-2047 range.  This can be helpful for anything that makes use of Extended Virtual IO bits besides Konnect Boards. http://dynomotion.com/Software/KMotion431n.exe Regards TK Group: DynoMotion Message: 8551 From: Tom Kerekes Date: 10/28/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Hi EC, The video shows a cable over 2 meters long working but we don't really recommend that. The cable for Kanalog should always be 2 inches or less.  Those signals are an order of magnitude faster than the signals for Konnect. We don't currently offer a "connector with a capacitor".  We recommend you reorganize your chassis to keep things short.  But one thing that seems to work is to just crimp on an extra 16 pin connector near KFLOP and insert the leads of a 0.001uF Cap into the connector (pins 4 and 8).  I suppose that might have some reliability issues with the tin/gold connection or round vs square pins.  If you think that is a concern then add a header and solder.  Or use a small BOB. Regards TK Group: DynoMotion Message: 8552 From: Tom Kerekes Date: 10/28/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Hi Mac, The cable should be custom made for minimum length.  It is pretty easy to make ribbon cabled.  A crimper like this: http://pccables.com/21007.htm is really inexpensive. Connectors and Ribbon can be found everywhere.  Winford.com sells them in low quantities: http://www.winford.com/products/dsi.php http://www.winford.com/products/rib.php (extra wires on ribbon cable can be torn off). Yes you can use Konnect with either Kanaogs or SnapAmps.  Konnect uses KFLOP JP6 Regards TK Group: DynoMotion Message: 8553 From: yanvrno@frontier.com Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Sweet, I'll start off with two. Replace the relays I used for the additional 24volt I/O! One more thing: do you have a dimensional diagram/layout of the board so I can start drilling holes? Mac Group: DynoMotion Message: 8554 From: Tapio Larikka Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT  Hi Tom!   If I use one PSU to power both Kanalog FETs and Konnect optos, will that make the isolation useless?   Rgds, Tapio   Group: DynoMotion Message: 8555 From: ericncn Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT In addition to Tapio's question: is it possible to use same PSU for both Konnect opto inputs and Konnect opto outputs? (The sample circuits in the documentation may suggest it's two separate PSUs...) Thanks, EC ---In DynoMotion@yahoogroups.com, <dynomotion@yahoogroups.com> wrote:  Hi Tom!   If I use one PSU to power both Kanalog FETs and Konnect optos, will that make the isolation useless?   Rgds, Tapio   Group: DynoMotion Message: 8556 From: Tom Kerekes Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Hi Mac, See here http://dynomotion.com/Help/SchematicsKonnect/LayoutKonnect.htm Regards TK Group: DynoMotion Message: 8557 From: Tom Kerekes Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Hi Tapio, Yes to have complete isolation use a separate isolated supply. Regards TK Group: DynoMotion Message: 8558 From: Tom Kerekes Date: 10/29/2013 Subject: Re: Announcing Dynomotion's 48 channel 24V IO Expander - KONNECT Hi EC, Yes usually a single isolated supply can be used for all the optos which will still keep everything isolated from KFLOP and the PC.  But that of course will make electrical connections between all of the various devices.  In most cases that would be fine.  However if one idevice is a 20HP VFD and the other is a Heart Rate Monitor then that might not be a good idea.  Konnect has 4 Banks of inputs to permit up to 4 separate supplies to be used. The Ouputs and all of Kanalog's Inputs and Output Optos are all separate for complete flexibility. HTH Regards TK