Send and Recv function

[Gheorghe 0]

Hi, I'm trying  to use send and receive function. I have to send 2 words from cpu CJ2M CPU33  to CJ1M CPU13. I use enthernet network.  I saw a strange thing  that if I just use send function  then my data goes to second  plc without  having  a receive function.  Its that right?

I didn't  mentioned  wich port because  I'm not sure wich  is. I left for automatic allocation. 

[Michael Walsh 268]

Yes, that is correct.  I think they misnamed these instructions.  SEND is really like a WRITE instruction  and RECV would have been better named READ.  You only need to do one command on one end.  

[Gheorghe 0]

On 01/08/2022 at 5:42 PM, Michael Walsh said:

 

Michael, do you  know  if the send function works  trough  the ETN 21 module ?

[Michael Walsh 268]

Yes, it does.