SMY133-SMY134-SMP133 Operating Manual
6.2 I/O Setup
The inputs and outputs processing capabilities are very wide and it would be rather complicated to set
it using the instrument panel. Therefore, you can set it only on a PC connected with a communication
link only using the ENVIS-DAQ program.
For the I/O setup, use
Config → I/O Management
. Complete I/O setup consist of so called
clauses
.
Individual clauses are listed in the I/O management screen.
Each clause consists of :
•
...
The clause switch
- If ON the clause is active, i.e.
the clause condition
(if any set) is
evaluated and if it gets true (= logic 1),
the clause action
(or
actions
) are processed. By
clicking on the switch you can toggle it to OFF – then the clause processing is suppressed
and has no effect.
•
The clause condition –
a logic expression. When result of the expression is true (= logic 1)
the clause action is performed. If the result is false (= logic 0), the action is not performed
(=suppressed).
The clause condition can :
•
be empty – then appropriate clause action is performed permanently (empty
condition gets true result)
•
be created by one condition item only (for example
the quantity value condition
)
•
be formed by combination of two or more
condition items
joined with
and
operators ( see the clause No. 2 in the example above)
•
The clause action –
with the actions you can set various functions concerning usually
instrument inputs and outputs. Typical action are, for example, a digital output control or an
analog input processing.
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Fig. 6.2 : The I/O Management Setup Example in the ENVIS-Daq Program
