Product : ISaGRAF V3
Date : 23-Febuary-1996
File : Cpxiopar.Parameters of a Complex Equipment.htm
Subject : parameters for a complex I/O equipment
Keywords: I/O complex equipment - OEM parameter
ISaGRAF V3 workbench does not provides the way to attach parameters
to a complex I/O equipment. Parameters are always attached to one or
several of the single boards of the complex equipment.
An easy solution is to give all common parameters to the first board
of the equipment.
The best is to insert one more single board at the beginning of the
equipment. This board does not group any real I/O channel. It is
used to group common parameters and can provide channels for main
IO control (outputs) or status information (input).
When the OEM_open procedure is called for the first board of a
complex equipment, its parameter is a pointer to the first board
descriptor. Increment this pointer to easily have access to other
single boards. This must be done if the parameters attached to the
first board have to be passed to all other single boards.
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