Scanlab RTC 5 PC Interface Board - read_io_port_list

RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
387
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Undelayed
Short
List Command
read_io_port_list
Function writes into the internal IOPort buffer the current state (DIGITAL IN0 … DIGITAL IN15) of
the EXTENSION 1 connector’s 16-bit digital input. At the same time, the current XY set
positions and (relative) time in seconds are stored.
Call
read_io_port_list()
Comments • The read_io_port_list command does not return values. However, the values can be
subsequently queried from the IOPort buffer via the read_io_port_buffer command.
• The IOPort buffer holds 16 entries and is circularly organized. It always stores the 16
most recent entries and overwrites older entries without warning. The incremental
Index starts after a reset (program start) at Index 0, and after passing 15 will rollover to
0.
• The stored time is the current value of an internal seconds counter that is set to 0 at
program start (load_program_file) or via time_update.
• Also see section "16-Bit Digital Input", page 207.
RTC
®
4  RTC
®
5new command
References read_io_port_buffer, read_io_port