Canopen network with 3 "epos2 p" drives of maxon

I already had experience using  " EPOS2" drivers and MAXON motors  using USB and CAN network successfully.
Now I am trying to use 3 driver of "EPOS2 P 24/5"  AND  3 MAXON motor   222053. In commissioning step using pc as a supervisor (I don’t want to use internal plc) I have problems.
I use 3 "EPOS2 P" drivers. (using a USB connection from PC to the 1st and CAN connection to the 2nd and 3rd). Also I closed the JP1A[1] at the 1st drive (Which I guess you called master) and JP1[8] at the 3rd (last drive which I guess you called slave)).  When I wanted to connect  them slave drivers (2nd & 3rd),  "epos studio 1.44" only recognize master (1st) and the one that is connected directly to the master (2nd EPOS2 P). I could not connect to the 3rd one. Also I can not command position to any of slaves (2nd & 3rd ) even the one (2nd) that is recognized by  "epos studio 1.44"  .
Would you please help me to connct and command the all 3 my drivers of Epos2 P?

Hi there,
When you are unable to identify your devices in EPOS Studio, do you receive any errors, or do they just not show up? Also, just to make sure I understand your set up correctly, are the three drives daisy-changed (PC to 1, 1 to 2, and 2 to 3) or are they branched (PC to 1, 1 to 2, and 1 to 3)? Finally have you seen this KnowledgeBase, http://digital.ni.com/public.nsf/allkb/F2F553B7B2E​3FC10862572AC0023FCA0 , on using EPOS drives with LabVIEW?
Miles G.
National Instruments
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