Question

In an integration, can you read data from 2 different sources, compare the data and then print a document conditionally based on the result of the data comparison?

Answer

Yes, this is indeed possible. Find below an example (using TCP/IP sockets).

1.-     

The following Integration File shows how you could create either a TCP/IP or Serial Port Integration to scan a first set of data (which will stay in %EventData%), then create an additional Action which will scan for a second set of data (which I have stored to a variable called %SecondScan%).

Once you have both sets of data, you can compare them via a PowerShell Script:

$First = "%EventData%"
$Second = "%SecondScan%"
$Result = $First.equals($Second)
$Result

The Result is written to a third Integration variable called %Result%.

Finally, you can perform a conditional "Print Document" action, based on the value of %Result%. If it's True, then the document will be printed (well, in my example I've used "Begins with" T as the "Equals" True comparison wasn't working). 

2.-     

Some screenshots:

The initial TCP/IP detection is configured to stop reading after 5 characters:

The Second Read from Network Socket (this time as an Action), works exactly in the same way, but opens a new connection:

The PowerShell command to perform the comparison:

The conditional Print Document Action: