# Revision History

Revision Date | Rev. | Description
--- | --- | ---
Feb. 2020 | 1.0 | First revision
April 2020 | 1.1 | Corrections and updates
April 2020 | 3.0 | Merged Alignment Sensor and Guidance System as AlignSight
May 2020 | 3.1 | Added L-Check commands (XALC, XTLC, LC) Added MultiPattern commands (XAMP, XTMP) Added comments for Ethernet-IP Added XT2 command Added PID command
Aug. 2020 | 3.2 | Added result field in response in L-Check commands (XALC, XTLC, LC) Added EncodedPartID=0 option in MultiPattern commands (XAMP, XTMP) Fixed SLMP command ID of PID (from 1050 to 5050) Added error code: -1014, -1015, -1018, -3006
Nov. 2020 | 3.3 | Added coordinate system info in section 2