tev_ramp_times_c

	status.i4.v = tev_ramp_times_c(event.i4.v, time.r4.r)

	This routine returns a cycle time value for a requested Tevatron
	ramp event.

	event			desired event (RMPEV_xx where xx is the
				desired event number)
	time			returned time in cycle in seconds

	Function returns 0 for success, else a nonzero error code.