General > Frequently Asked Questions

Nano Client over few servers

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sebraun:
I would like to resurrect this issue.  Using the Nano with Modbus TCP servers, specifically the ADAM 6051 and a Acromag analog input module: how quickly can the TCP connection be opened and closed?  I need to sample an analog input every second and I need another two digital modules on the network as well that are not time critical.  Currently, my testing with just the Acromag indicates that this is not going to happen.  How do I manage higher speeds on local but remote IO networks?  

support:
We have previously did a round-robbin test of a network of several PLCs where a Nano-10  open a connection, send a command and receive data, close the connection and move on to the next Modbus/TCP server within a fraction of a second. We did not specifically measure the time it takes but I believe it is possible to complete a cycle of five network controllers within less than 1 second.

sebraun:
OK...I'll setup today and give it a go.  

Tnx....S

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