On the ENA and ENA-L, is there a SCPI command to query the active channel?
(SUPPORTED MODELS IN BOLD: E5071C E5070B/71B E5070A/71A E5061A/62A E5061B E5072A)
Yes, the SCPI command to query the active channel on the ENA and ENA-L is:
:SERVice:CHANnel:ACTive?