Should Analog Input "SCR" terminal be connected to panel ground?
In the hardware manual of the ACQ580 for example, the attached picture shows that the outer shield is grounded (by using the 360 grounding method on the clamp plate, page 83 in hardware manual), while the internal individual shields are connected to SCR.
My question is, if I am using a single pair cable that has only one shield layer, should I connect the shield to the SCR, to ground, or to both?
I also want to know why SCR is not galvanicaly connected to ground, i.e., if you test its continuity to ground with a multimeter, it does not beep. I also want to know whether or not it should be ever or never grounded.