Characteristics of a Control Program
Parameter Restrictions
• The control program structure (TXT file) is predefined, as the following sample programs show.
• Each control program begins with a header. The unit name, the version of the basic board, and the program name
are stored here.
• The unit checks compatibility independently. There is complete downward compatibility beginning with software
version 0.7. If a control program is used for a higher software version, the unit will accept the software version
only if the value following the decimal point is greater than the basic version.
• For example, a unit with software version 2.0 accepts control programs with the entry [SW Revision] 2.1, but not if
the value before the decimal point is greater than 2; e.g., [SW Revision] 3.0 is not accepted.
• The length of the string between [Description] and [Data] can be any length that the storage space permits; it may
not contain brackets “[ ].”
• The sequence and designation of the individual parameters may not be changed. It is particularly important that
the designations “Code,” “Valve no.,” “Delay time,” and “Ext. Puls” remain unchanged.
• The lines are numbered in ascending order from 1 to 99. Line numbers can be skipped or deleted. Line number 0
is not permitted.
• Each input signal (IN1 to IN10) may appear only once per channel in each control program; otherwise a fault is
indicated. A control program can contain up to 99 (linked or unlinked) lines.
• Number of Pulses specifies the number of pulses per line; the value can be between 1 and 999 (at least one pulse
per line).
• Number of Blocks states the number of cycles of a block (a block consists of a line or multiple linked lines). When
lines or blocks can be started with IN1 to IN10, the number of blocks can be between 1 and 999 (at least 1). For
lines or blocks that cannot be started directly, the Number of Blocks = 0. The number of repetitions of a block
must be stored under Number of Blocks in the starting line of the block.
USB Reader / Writer Device with SD Card
• If your PC is not equipped with an SD card reader, use the included USB SD card reader. For instructions on how
to use the included USB SD card reader, refer to the manual.
The SD card should be formatted before it is used for the first time. Use the standard feature of your PC for this
purpose.
• After the SD card is formatted, use the USB SD card reader to save the control program as a .txt file on the
included SD card.
34 to create and transfer files.
PICO Controller 2+2-XCH-V2
36
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