User`s guide

110 VEE User’s Guide
2 Agilent VEE Programming Techniques Chapter
Figure 68 The Order of Events in an Object
In Figure 68, the pins operate as follows:
1 (if connected)
2
3
4
5
Table 9 Pin Operation Sequence
1 If the sequence input pin is connected, the object will not operate until
it receives a message to execute (a “ping” in VEE terms). However,
the sequence input pin does not have to be connected.
2 All data input pins must have data before the object operates. (You
can add data input/output pins to most objects. Click on the
Add/Delete Terminal menu in any object menu to find out the pins
that can be added.)
3 The object performs its task. In this case, A is added to B and the
result is placed on the output pin.
4 The data output pin fires. The object waits for a signal from the next
object that the data is received before its operation is completed.
Therefore, a given object does not fire its sequence output pin until all
objects connected to its data output pin have received data.
5 The sequence output pin fires.