I recently encountered an error on a machine in the field where an MD4 will not boot up if it has 24 volts coming into C2 pin 1 or C2 pin 2.  MD4 is running IQAN Design 6.08.  Instead it will say "IQAN-MD4 Safe mode! Application no loaded Open or short circuit on ADDR pins."  I was able to replicate in a lab.  

We recently renewed our IQAN license and updated to the latest  version of design which is when this problem started.  As a test, I reflashed the exact same program except that it was written in IQAN design 6.02.  I did not encounter the same issue with IQAN 6.02 so I believe this problem was introduced in 6.08.  

Please review as we have machine in the field that have been running for a while that are using C2:1 and C2:2 as rocker switch inputs.  The MD4s will not boot while the rocker switch is in the ON position.  

Is there a programmatic way turn off a MD4 display but leave the controller and program running in the background?

Good morning,
I kindly ask for help regarding the following problem:
as soon as I start the engine, the system detects an "Abnormal update rate" error SPN639 FMI 9 and a warning SPN1235, FMI9. I want to clarify that after a while that the engine works, the RPM + and RPM- command does not work anymore until I switch it off and on again. All engine data are correctly displayed and managed. Can you help me please?
Thanks.

Best regards,
Lorenzo Simonetti

Is there a way to access the top level for the Adjust Groups in a project file; the menu page that shows a list of all the Adjust Groups?

We have an application that the customer would like to press a button (or something similar) and it would take the user directly to the Adjust Group menu.  The only way I can find to do something like this is setting up a button to take the user to a specific Adjust Group.  

This feature would allow the customer to better protect other menu items from users that do not need access to those items and at the same time allow access to the list of the Adjust Groups.  

When importing a program designed in a version of IQAN Design earlier than 6.08 all existing image libraries appear to be removed during the import.

The images previously added to the display pages still remain and function as normal, but the library images they are linked to appear to be removed and all library groups are absent.

Hello,
Is the following setup possible:
MC41 #1 with ID tag 0 connected on CAN A a to a J1939 bus
MC41 #2 also with ID tag 0 connected on CAN A a to the same J1939 bus

The MC41 would not use the 1939 bus to talk to each other but to our own ECU. From what I know I think this should be possible because I can specify a different J1939 address for each MC41.

Will this work or will I get errors because both MC41 have the same tag even though they are not communicating with each other?

The motivation behind this is that we would prefer if we can simply use a single type of ID tag in production.

I have a program in v4 that can't currently be upgraded, yet I need the initialization functionality like in v6. Cycle utilization is an issue so I'm looking to find out what the most efficient way to keep the controller from processing a lot of math every loop and just keeping the resulting parameters after the initial calculation.

Will an if/else statement with a static init variable accomplish this or does the controller still process all of the Qcode even if it is not executed? Is there a better way?

Hi everyone,

Is there someone that could help for my work for a client

Kind regards,
Richard Kowalczyk MIEAust CPEng(Ret)
RKad Engineering
32 Kingussie Ave
Castle Hill NSW 2154
Australia
📲 :+61 (0)431 639 295

E: richard.kowalczyk@rkad.com.au
W: www.rkad.com.au

Hi everyone,

I would like to attract your attention to the problem that i have encountered as described below:

I have been working to convert input from Wema type fuel level sensor (resistance output) converting it into VIN for MD3 input using volt divider. After calibrating actual device I have defined 2 square curves (0-50% and 50%-100%) to get better accuracy. IQAN program attached (.FuelLevel.idax). When I opened this program in IQANDesign 5.08 I have got the following result when simulating on computer which you can see it is wrong result as and simulation would give only -039 or 1.04.

If I load program in this stage into machine it would behave incorrect as in simulation

Then after playing with it I have discovered that closing simulation and then editing 'Default function' for M_Fil (Math channel) for example changing "-0.39" into "-0.391" and then back into "-0.39" and then restarting simulation it would come back to normal (what i would expect) as you can see on the following picture

When I have loaded the program into machine in this stage it has been working ok since then.

Additional info:

Your comments will be much appreciated

Kind regards,
Richard Kowalczyk MIEAust CPEng(Ret)
RKad Engineering
32 Kingussie Ave
Castle Hill NSW 2154
Australia
📲 :+61 (0)431 639 295

E: richard.kowalczyk@rkad.com.au
W: www.rkad.com.au

It might be interesting to think about a way to structure the software so you can easily generate corresponding flowcharts and or state machine diagrams based on it. This would save a lot of time when communicating with people that are not familiar with the IQAN software architecture and makes documenting the software a lot easier than manually creating the flow charts ourselves. Again this is just something that came to mind and would love to know what people think about this kind of feature and if this is even plausible.

Thank you in advance!