LSC340 Curve Handling

Script: ~/sea/tcl/common/lsc.tcl

Curve in the format delivered on the LakeShore calibration CD (ending with .340) can now be used directly. The header is read in and converted to properties of the subnode "curve". The value of the node is the curve file name (case sensitive), and the curve will be reinstalled whenever this value is set. A new curve is downloaded only when it is not already stored in the controllers curve tables. For checking if a curve is already there, not only the sensors serial number is checked, but also a crc code calculated from the curve points. The crc code is stored in the last 3 characters of the 15 chars long name of the LSC340's curve header.

For special needs it is possible to customize the input configuration by adding one (or both) of the following header entries:

intype:0,<units>,<coefficient>,<excitation>,<range>
compensation:0