Posted 4 Sep 2014 Hi, I have been trying to communicate between a PLC(Mitsubishi FX3U) and Labview (using Data Socket) through a KEWserverEX OPC-server (using a RS232C COM Port cable). I have been successful at that by using baud rates ranging from 9.6kbits/s to 115.2kbits/s, with average reading time into Labview ranging from ~40ms to ~10ms (of course depending on baud rate) per value. However, this is too slow for our purposes, and we need it to be in the area of 1-3 ms per value. Are there any tricks to decrease the reading time between the PLC and Labview, or do we perhaps need an ethernet module? Kind regards Bjørnar Share this post Link to post Share on other sites
Posted 5 Sep 2014 Speed depends on the amount of data you are moving. Of course Ethernet would be faster. Share this post Link to post Share on other sites
Posted 10 Sep 2014 OK, so there are no ways to decrease the communication speed. Is it perhaps possible to communicate arrays of integers in stead of single integers. Is it possible to decrease hand-shaking time by communicating arrays of values. Or, is an Ethernet module the only option for increasing the communication speed? Share this post Link to post Share on other sites