if get_exec_pars().args:    # args is set by callin process (Qt panel)
    und = args[0]
    scan = args[1]
    
if   scan == "AR_K":
    set_channel = und + "-UIND030:K_SET"
elif scan == "AR_PHI":
    set_channel = und + "-UPHS060:PHI_SET"
elif scan == "AT_K":
    set_channel = und + "-UIND030:K_SET"
elif scan == "AT_PHI":
    set_channel = und + "-UDLY060:PH-SHIFT-OP"

set_value = caget(und + ":SCAN-CREST")
caput(set_channel, set_value)

set_return([set_channel, set_value])