Problem Controlling PXI-2503 Switch through the IVI-C Switch API

Hi,
I'm writing an application to control a PXI-2503 switch in 1-wire mode using the IVI-C Switch API in order to route signals to a PXI-4060 DMM.
According to the programming instructions, I should be able to create a path from the "ab0" channel to a channel like "ch10" by calling IviSwtch_Connect( "ab0", "com0" ) to connect "ab0" to "com0" and then calling IviSwtch( "com0", "ch10" ) to connect "com0" to "ch10". However, after the program makes those 2 functon calls, the DMM doesn't get the correct signal.
When I use the NI Switch Soft Front Panel application to connect "ab0" to "com0" and then connect "com0" to "ch10", then the DMM gets the correct signal. Does anyone know what the Soft Front Panel tool does differently?
Thanks in advance to anyone who can help.
VRMan

VRMan,
Make sure that you have configured your 2503 to be in the 1-wire 48x1 topology...
Other relays that need to be closed for ch10 to make it to ab0
are "bc01" and "1-wire". Check out the hardware diagram for
the 2503 which can be found by going to
Start>>Programs>>National
Instruments>>NI-Switch>>Documentation>>NI Switches
Help, then browse to Devices>>2503>>PXI-2503 Hardware
Diagram.
When you use the SFP or program with LabVIEW, you have the option to
initialize a switch with a certain topology. For the 2503 1-wire
48x1 mode, this automatically changes "bc01"," bc02", "bc03", and
"1-wire" to the correct positions. Check to make sure that the
same is done when using the IVI-C driver you are working with.
Let me know if this doesn't solve the problem, or if you have any more questions. Best of luck on your application.
Regards,
Travis W

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