Hello,
PROJECT:
talk / listen to two different devices that can be connected to by a static IP with separate port number for each. I need to actively communicate (send commands, listen for responses varying in length), while just listening to another.
So far, I'm able to monitor the output of one of the devices by using the receive loop portion of the 'TCP Communicator - Passive.vi'. This works perfects, the incoming signals are echoed to the screen, where everything is visble.
Secondly, I'm trying to run 'TCP Communicator - Active.vi' to speak / listen to the other device. Here are some of the issues that I'm finding.
PROBLEMS:
I've tried to establish one line of communication before I attempt to get both working. I started to try to do the same as before (receive incoming data). Instead of a continuous stream of data that is displayed to the screen, the screen will stay blank until the program sends a parital message. Here are the two messages that I was attempting to receive from the devices (with the exception of the line indicators).
working:
00 : $GPGSV,3,2,12,01,,,,02,,,,04,,,,05,,,*79
01 : $GPGSV,3,3,12,06,,,,14,,,,17,,,,18,,,*76
02 : $PMGNST,05.12,0,F,-88,00.0,+02964,23*41
not working:
00 : R 97 100 105 111 32 83 116 97 114 116 101 100
01:
02 : i 0 95 28 92 198 196 23 3 158 242 124 69 188 4 13 0 35 113 0 0 0 0 0 0 0 0 0 0 110 107 222 39 19 201 196 226 113 56 156 79 39 147 137 196 226 121 60 158 78 39 19 137 196 226 113 52 156 78 39 19 137 228 226 113 56 156 77 39 19 201 164 242 121 52 156 78 39 19 137 196 226 113 56 158 4 23 1 117 0 22 0 248 0 22 0 67 0
In order to test the receiving capabilities of the LabVIEW app, I put both devices into a transmit mode, then test individually. I've looked over the help menus for each TCPlisten, TCPread, TCPwrite, and can't seem to configure these properly, so that the second message is received correctly.
I'm pretty sure these sample programs will be enough to establish the communication I'm looking for, but again, I just need a few pointers to get it it to work. Ideas, advice?
Thanks,
