Compactlogix modbus rtu module7/3/2023 ![]() ![]() It still bothers me that I had two devices on the same ethernet network and had to resort to an additional "serial" connection to get them to talk. Ironically, on that specific job I ended up switching over to Modbus RTU out of the 元5E's comm port and was able to get reliable comms at a full update rate of about 100ms. ![]() It was causing latency issues of more than 1 sec, which was way slower than I could tollerate. ![]() The speed was also dependent on how much information was displayed on the screen. I know you said you tried (something like) this but I have used the Redlion DSPLE in this type of application and I didn't find it to be slow at all.Īlso, if you choose the option to have two Ethernet Cards in the DSPLE, you can even have two different networks if you need some kind of isolation.
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