LabVIEW TCP IP read write between 5 PC

[suyash.barodiya]

Hello All,

I am dealing with a application, where i want to establish the communication between 5 PCs for parallel reading and writing the data.

i have used NI example as template. I am struggling in parallel read write communication.

Problem i am facing...when executing the VIs in 2 Pc (first PC for TCP write and 2nd for read), and i want to do it for 5 pcs.

Note - My both VIs having tcp read and write configuration 

Here i have used 2 PCs,and problem i am facing is explained below.

1.   If i run the TCP write and after some time (Timeout elapsed) if i open the TCP read in other PC, then TCP connection time out message pops up and communication doesn't work , to resolve this i have to sync the execution timing manually for both the Vis, means, i execute one vi and immediately after, run the other VI, for smooth operation.

2. Some how unidirectional  write - read is working but other way creating the problem.

Example - Below working fine

PC1               ------------------------------------------------>      PC2

TCP write                                                                     TCP read

But when

PC1             < ---------------------------------------------------  PC2

TCP read                                                                    TCP write

It creating the problem. 

Scenario is like this

Out of 5 ......

1 pc is master and other 4 are slave...and master writes the data in all 4 slave pcs.using TCP write and slave TCP read

4 Slave PCs send their name to master, using TCP write and master read the data by tcp read..

For that i am doing the TCP write by incrementing the IPs like 192.168.1.100   ......+1.........

                                                                                                                    101

                                                                                                                    102    so on

I have attached my both VIs. Please help me find the issue, where i am doing wrong. Might have possible my design is wrong. 

Please let me know in case of any explanation required.

Many thanks in advance