tek_switch_mode (ul_scopes)

	status.i4.v = tek_switch_mode(mode_is.i4.v)

	Change TEK3052 data collecting mode to 489 card to VME.

	mode_is		TEK_VME --> Use VME front end.
			TEK_489 --> Use CAMAC 489 card

	returns mode of set TEK_VME for vme mode
	                    TEK-489 for 489 card mode


	This function returns ACNET status values as follows:

	otherwise		returns ACNET error status.


	This function requires the following include files:
	ul_scopes_h:tekdefs_h

	Related functions:

	tek_get_mode, tek_get_waveform, tek_get_waveform_sing, tek_get_dir,
	tek_get_header, tek_set_mode,tek_set_span, tek_switch_mode, 
	tek_message