OVRFLW when measure resistance

[Tatiana01]

Hello,
I have a 2701 DMM + 7709 switch model and I want to measure e resistance from backplane panel.
I use a 2-wire ohm function and I get a OVRFLW. If I measure it from the front panel it works.
What can be the problem? Thank you for your advises!

[Andrea C]

In addition to closing the appropriate channel on the 7709 card, also be sure to press the Inputs Front/Rear switch on the front of the 2701. It needs to be pressed in for Rear to route the cards to the internal DMM.

[Tatiana01]

Thanks for your replay.
I change it to the REAR on front from the beginning but it not helps, also i tried to use a system channel operation and a multiple channel operation it still not working.
If you know what more can cause that problem I will appreciate your help!