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The Cryogenic IR echelle Spectrometer (CRIRES) instrument at the Very LargeTelescope (VLT) was in operation from 2006 to 2014. Great strides incharacterizing the inner regions of protoplanetary disks were made using CRIRESobservations in the L- and M-band at this time. The upgraded instrument,CRIRES+, became available in 2021 and covers a larger wavelength rangesimultaneously. Here we present new CRIRES+ Science Verification data of thebinary system S Coronae Australis (S CrA). We aim to characterize the upgradedCRIRES+ instrument for disk studies and provide new insight into the gas in theinner disk of the S CrA N and S systems. We analyze the CRIRES+ data taken inall available L- and M-band settings, providing spectral coverage from 2.9 to5.5 $\mu$m. We detect emission from $^{12}$CO (v=1-0, v=2-1, and v=3-2),$^{13}$CO (v=1-0), hydrogen recombination lines, OH, and H$_2$O in the S CrA Ndisk. In the fainter S CrA S system, only the $^{12}$CO v=1-0 and the hydrogenrecombination lines are detected. The $^{12}$CO v=1-0 emission in S CrA N and Sshows two velocity components, a broad component coming from $\sim$0.1 au in SCrA N and $\sim$0.03 au in S CrA S and a narrow component coming from $\sim$3au in S CrA N and $\sim$5 au in S CrA S. We fit local thermodynamic equilibriumslab models to the rotation diagrams of the two S CrA N velocity components andfind that they have similar column densities ($\sim$1-7$\times$10$^{17}$cm$^{-2}$), but that the broad component is coming from a hotter and narrowerregion. Two filter settings, M4211 and M4368, provide sufficient wavelengthcoverage for characterizing CO and H$_2$O at $\sim$5 $\mu$m, in particularcovering low- and high-$J$ lines. CRIRES+ provides spectral coverage andresolution that are crucial complements to low-resolution observations, such asthose with JWST, where multiple velocity components cannot be distinguished.

Full L- and M-band high resolution spectroscopy of the S CrA binary disks with VLT-CRIRES+