I am using an FP-2015 to read data on two remote systems (each having an FP-1601 as a controller). I am using ethernet communication. I am using Labview 8.21 and RT 8.21.
When running the code on my RT target, if one of the two remote systems is offline the first time the code on the FP-2015 executes, when the code reaches the first FP read VI, the codes stops executing. It doesn't return an error, it just stops executing, this is a terrible behavior . If the module is present the first time it goes to read, and then at some point later gets disconnected, the FP read returns an error rather than stopping execution of the code. AS LONG AS THE FIRST TIME I GO TO READ DATA FROM A MODULE, THE MODULE IS PRESENT, THEN THE FP READ RETURNS AN ERROR IS THE MODULE IS LOST. BUT IF THE FIRST TIME YOU GO TO READ IT IS NOT THERE, CODE STOPS EXECUTING.
This is not the same behavior which occurs if you use the FP read function on a standard PC. Whether it is the first time or the one milliionth time you go to read data from a FP module that is offline, it just returns an error.
