Calculation Overflow - MD4 Nuisance System Logs

Luke Ricker 3 years ago in IQANdesign • updated 3 years ago 2

Is there any sort of way to disable "calculation overflow" from making a log in the system log in an IQAN 3, MD4 application?

I know that I should probably make my program not have calculation overflows in math and J1939 output channels in the first place, but when these errors pop up, despite the best programming intentions, and are logged, it worries the customer, who usually thinks something is wrong with the machine.



Ajdusting Dither Amplitude

Aurelio Romano 4 years ago in IQANdesign • updated by Gustav Widén (System support) 5 months ago 3
Is there a way to change the dither amplitude in the IQANdesign software? We have an application where we believe the dither amplitude is causing the valve to go unstable and would like to decrease the amplitude to do some testing.

IQAN 4.00 J1939 parameter in bug

Frederick Prigge 3 years ago in IQANdesign • updated 3 years ago 4

I have a block of code that worked well under v3.19 that is missbehaving under v4.00.

A MC31 master is receving J1939 frames from another non Parker device. In debug mode the frames are "green", meaning no timeout situation. The associated J1939 parameter is "red" and I am getting the replacment value. I first tough it must be a J1939 error check, so put the J1939 error check to "no". Same situation, no change, parameter is "red".

If I remove the scaling and offset ot that J1939 parameter, it works, and becomes "green"! I then need to do the scalling/offsetting in a math channel. This is not normal! Please advise.

Thanks for your help.


small ida3 files

blags 4 years ago in IQANdesign • updated by Gustav Widén (System support) 4 years ago 2
The project files I create are about 21 Mb in size. Example files are usually < 500Kb.
Why ?
Having a difficult time downloading via the CAN port

Program optimizing

Tuomas 4 years ago in IQANdesign • updated by Ulrik Zakariasson (Software development) 4 years ago 2

I have learned to use Qcode and its great tool to make your program more simple.

However, I noticed that when you add many functions inside same channel (like MAC),

the Component Count value in Project statics increases a lot even it should be less than before? Example before I had 5 different MAC channel what I add in same MAC channel using Qcode, still Component Count value increased even it should be less than before?

When you want to optimize your program running power what method gives best result;

-Add many functions in same channel or keeps functions separate in own channels?

Merry Christmas to everyone! :)


IQAN Creative Studio 3.17 released

Highlighted change:

24962 Remove 30 day limit on evaluation license
You can use the tools without a license as long as you like. The functional limitations are still there though, the tools are limited to simulation only.

For more details see:


fame input channel unassigned

Zach 4 years ago in IQANdesign • updated by Ulrik Zakariasson (Software development) 3 years ago 2
I made a j1939 frame input channel, and hooked it up to three jpins.
The jpins are configured for error checking, 0 error value.
The jfin is red with an unassigned error.

I think maybe this is caused by how I made a new function group and a new j1939 module, but I perhaps have not linked them correctly, or does this sound like another issue?
I checked through some of the forums to see a similar issue, and I saw a person had disabled the error checking as a workaround. I am hoping not to do that.

Pin Code Channel with integer values

Arno Heeren 5 years ago in IQANdesign • updated 5 years ago 3
in some situations when a connection with a PC or modem is not an option, customer need to give the driver/enduser access through the display to certain adjust, measure or log items.
To have a kind of restriction or limitation, it would be nice if this access could be limited in time.

If the Pin code channel would accept integer values, the Pin could be a function of the actual date or other values. So if someone calls in with a problem, the service engineer at the OEM can do some mental arithmetics. In case of a date based Pin-Code it will be void on the next day.


Change Color for Conditional Message

Zach Dockter 4 years ago in IQANdesign • updated by Ulrik Zakariasson (Software development) 4 years ago 2

Is there a way to change the icon color for conditional messages? I'm getting Red for 'Warning' and yellow for 'Alarm'. Since Alarm is higher than warning, I'd rather the Alarm be red and the warning be yellow....


Loosing external reference when Grouping/moving Code

Jean-Marc Zanni 4 years ago in IQANdesign • updated by Gustav Widén (System support) 4 years ago 4
One of the most difficult or time consuming task is to keep our code organized has it evolves. I do not know about others but our code is evolving with time as we encounter new options and configuration for our hardware. Sometimes a modification starts with the addition of a few functions but after few month we end up with a real spaghetti very difficult to troubleshoot. Since often those modifications are done under the gun during commissioning it is not easy to know where it is going to go.
The biggest reason why it is difficult to re-organize a code after the fact are all the external references of the objects. If we decide to move them into a new or existing function group to help clean-up the code all those connections are lost and we need hours to re-create them. That is if we where smart enough to first identify them. More specifically I am referring to:
-Display object
-Adjust group
-Log object
-measuring object
It would be so much nicer if those connections could be kept.