About niSwitch

[praky]

hi,

currently i am working with NI 2530 mux  with NITB 2631 Matrix block(4x32). I am using this to get CAN signal & pass it through the Scope.

i want to access the Switch from CANoe, so now i am writing some driver for this Switch in CVI & then i will call this to CANoe.

i want know if i give 2 signals to same row whether it can detect error by it self ? if so then what function should i use.

please give me some suggestion..

[DianaS]

Hi praky,

I'm not sure I understand correctly what you are trying to do. Are you trying to make a differential measurement with your scope to extract the error?

How to do this you can read here: http://zone.ni.com/devzone/cda/tut/p/id/3286

This link also includes an example for this.

[praky]

Hi,

i will explain it clearly..i have 10 CAN siganls. These signals are passed through a  test setup which has 4 ouput. In that Test Setup i have different Hardwares like NI's DMM, MUX , Matrix Terminal block and so on.. i want to analyse those siganls in Scope(Tektronix). for this purpose i was using   NI Switch Soft Front Panel 4x32 Matrix.

but now i want do the same thing without using the Front panel. so now  i am creating some drivers  using  Labwindows. In that i have few functions like

niSwitch_init, niSwitch_Connect..

so i have 4 rows to connect to scope & 32 columns to get CAN signal. for example i can connect  r1-c1 , r2-c2, or r3-c10 & so on..

my Question is what will happen if i connect one row to two columns(r1-c1&c2).

Does it detect error automatically or should i avoid it in my labwindows program.

i hope now u can understand my Qn.

Praky..

[DianaS]

Hi praky

its not automatically detected if you make a double or wrong connection. But with Switch Executive Software you can exclude connections:

http://www.ni.com/switchexecutive/d/