The essence of I/O assignment is assigning an instrument to a channel. Smart Instrumentation provides several options for this purpose. You can choose one of the following options for I/O assignment:
Select an instrument tag coupled with a control system tag and assign both of them to a free channel.
-
Couple an instrument tag with an existing control system tag and then assign them to a free channel.
-
Assign an uncoupled control system tag to a free channel.
-
Assign an uncoupled instrument tag to a free channel. You will have to create a new control system tag in the process and the coupling will be done automatically.
-
Assign an uncoupled instrument tag to a channel to which a control system tag has already been assigned.
-
Open the I/O Assignment window.
-
In the Tag coupling data grid, select one of the following:
-
An instrument tag coupled with a control system tag.
-
An instrument not coupled with a control system tag.
-
A control system tag not coupled with an instrument.
-
-
Drag the selected item to a free channel in the Channel assignment pane.
-
If you selected an instrument not coupled with a control system tag, do the following:
-
On the Control System Tag dialog, type the name of the control system tag that Smart Instrumentation creates automatically.
-
Select OK on the Control System Tag dialog to complete the I/O assignment.
You can shift the assignment of an instrument to another unassigned channel by simply
pressing and holding the CTRL key while dragging the instrument to another unassigned
channel. You cannot change the assignment this way if the target channel has already
been assigned to another instrument. Note that when changing the assignment, the software
retains the existing control system data.