User Manual – Rev AJ California Instruments3.10.2 Clock/Lock Initialization SettingsThe mo on oPROGRconfigur er on by using the INITIALde of operati f the MX-LKS auxiliary unit is determined by the Clock mode set in theAM2 screen. Since most clock and lock systems are permanently used in thisation, the clock mode can be set to EXT (External) at powSETUP3 screen.Available initial settings and their relationship to the Clock and Lock mode of operation areshown in the table below.INITIAL SETUP 3Field Parameter DescriptionCard MX power source with no clock andlock mode of operation.LK/LOC STAND Normal stand alone mode of operation. ForstandMASTER For master (-LKM) power source in clock andlock mode of operation.AUX For auxiliary (-LKS) power source in clock andlock mode of operation. Powers up with clocmokde set to external.Table 3-14: Clock and Lock Initialization settingsck/Lock and External Sync Mode3.10.3 CloNote that an MX-LKM auxiliary unit is factory configured to operate in Clock and Lock moden EXT clock mode is selected in the PROGRAM2 screen. This means that a MX-LKSnot be used in normal external syncwhecan mode. However, the MX-LKM master unit can beFurcan3.10.4operated in external sync mode.thermore, since the MX-LKM master unit is factory set for Master mode of operation, it in turnnot be used as an Auxiliary source in a clock and lock configuration.Remote Programming of Clock and Lock systemsSince clock and lock systems have multiple autonomous controllers that are synchronized inuency, remote programming of these systems reqfreq uires that the application program dealswith all MX controllers. This often precludes the use of RS232C as generally not enough serialExewhiToindiscreports are available. The use of GPIB instead also offers the advantage of using the Groupcute Trigger (GET) capability to effect output changes on all phases (MX's) simultaneouslych is otherwise difficult to do.set up a GPIB remote controlled clock and lock systems, the GPIB addresses for thevidual MX's must be set to different address values in the UTILITY1, GPIB/RS232 SETUPen.Note: This mode of operation is not supported by the MXGUI Windows softwaresupplied with each MX unit.MX Series 67
