Scanlab RTC6 PCIe Board - Page 812

RTC6 boards
Doc. Rev. 1.0.21 en-US
10 RTC6 Commands
812
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Ctrl Command time_update
Function Sets the 24-hour clock and calendar of the RTC6 board to the current PC time.
Call time_update()
Comments • time_update must be called after each load_program_file, if 24-hour clock and
calendar of the board are to be synchronized with the PC time.
• The base value for internal time counting is set to January 1, 2000, 00:00 by
load_program_file whereas to the PC time by time_update. An internal seconds
counter is set to 0 by load_program_file or by time_update, but is always driven by
the quartz-controlled 10 µs clock.
• Before marking with mark_date or mark_time, you must call time_fix, time_fix_f or
time_fix_f_off so that the current time can be captured (as sum of the base value and
the current value of the internal seconds counter) and formatted.
• The RTC6 Ethernet Board a real-time clock. Therefore, time_update must be called
only once. time_update takes several hundred µs. During this time the
10 µs clock cycle of the RTC6 Ethernet Board is interrupted. Therefore, time_update
should not be called during list processing. The clock continues to run even if the
power supply is switched off (> about 1 week). See also time_control_eth.
RTC4RTC6 New command.
RTC5RTC6 Unchanged functionality.
Version info Available as of DLL 600, OUT 600, RBF 600.
Last change DLL 612, ETH 612, RBF 617: real-time clock of the RTC6 Ethernet Board.
References time_fix, time_fix_f, time_fix_f_off, mark_date, mark_time, time_control_eth