February-13th-2018, 09:05 AM
Well all the example containers that are not related to netX (except the one node-red-fieldbus example that will run with netHAT also) will run immediately on your RPi3. So you can test CODESYS as standalone application, you can test Mosquitto container the same time on your RPi3 ... nearly everything.
RPi3 respectively netPI is so fast, I have no doubt you get your network running much faster than 100msec. Even with Node-RED.
It is correct that netX51 supports Modbus TCP stack also. But the download you are referencing is made for netX51 customers only that integrate the chip into their IO system such as WAGO IO. Those units usually do not have any Host CPU on top that could execute protocol stacks. For product line netPI and netHAT we focus the use case for the netX chip to real-time ethernet protocols only which really demands CPU power. Other protocols such as Modbus TCP can be handled easily by Raspberry CPU since they are non-real time.
Have you ever evaluated the response time of your Wago coupler. I expect it responses in 2-3msec and higher. Even if you poll it on Raspberry CPU as fast as you can, it will not load the Quad-Core CPU for sure.
Armin
RPi3 respectively netPI is so fast, I have no doubt you get your network running much faster than 100msec. Even with Node-RED.
It is correct that netX51 supports Modbus TCP stack also. But the download you are referencing is made for netX51 customers only that integrate the chip into their IO system such as WAGO IO. Those units usually do not have any Host CPU on top that could execute protocol stacks. For product line netPI and netHAT we focus the use case for the netX chip to real-time ethernet protocols only which really demands CPU power. Other protocols such as Modbus TCP can be handled easily by Raspberry CPU since they are non-real time.
Have you ever evaluated the response time of your Wago coupler. I expect it responses in 2-3msec and higher. Even if you poll it on Raspberry CPU as fast as you can, it will not load the Quad-Core CPU for sure.
Armin
„You never fail until you stop trying.“, Albert Einstein (1879 - 1955)
