  We present an analysis of XMM-Newton Reflection Grating Spectrometer (RGS)
observations of the planetary nebula (PN) NGC 6543, rendering it the second PN
with high resolution X-ray spectroscopic observations besides BD+30 3639. The
observations consist of 26 pointings, of which 14 included RGS observations for
a total integration time of 435 ks. Many of these observations, however, were
severely affected by high-background levels, and the net useful exposure time
is drastically reduced to 25 ks. Only the O VII triplet at 22 \AA\ is
unambiguously detected in the RGS spectrum of NGC 6543. We find this spectrum
consistent with an optically thin plasma at 0.147 keV (1.7 MK) and nebular
abundances. Unlike the case of BD+30 3639, the X-ray emission from NGC 6543
does not reveal overabundances of C and Ne. The results suggest the N/O ratio
of the hot plasma is consistent with that of the stellar wind, i.e., lower than
the nebular N/O ratio, but this result is not conclusive.
