First time these days I encountered the topic "Modbus" when I was ordering these 16 channel relay modules: #12
Second encounter was when I yesterday coined the issue on frequency converters: #7
I was looking for the seria protocol for the Danfoss-converters, but it looks like you have buy additional hardware modules to do so. Many of them on the list carry a "modbus" label.
Find a concise description here: https://en.wikipedia.org/wiki/Modbus
Modbus has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices.[
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Example of frame in hexadecimal: 01 04 02 FF FF B8 80
Doesn't seem that more complicated than what we send to the 4-Channel-LCTech modules.
Versions of the Modbus protocol exist for serial port and for Ethernet and other protocols that support the Internet protocol suite.
Doesn't that sound like that what IoT is about?
WESPOTA thingies might be both master and slave, using TCP, UDP, serial and whatever else the standard defines.
Personally, at the moment, I don't have need for modbus beyond the 16-ch relais.
But other people may have - now or in the future.
So at least, I would keep this issue in mind when the architecture is refurbished, so that it easily can be integrated at a later time.
First time these days I encountered the topic "Modbus" when I was ordering these 16 channel relay modules: #12
Second encounter was when I yesterday coined the issue on frequency converters: #7
I was looking for the seria protocol for the Danfoss-converters, but it looks like you have buy additional hardware modules to do so. Many of them on the list carry a "modbus" label.
Find a concise description here: https://en.wikipedia.org/wiki/Modbus
.....
Doesn't seem that more complicated than what we send to the 4-Channel-LCTech modules.
Doesn't that sound like that what IoT is about?
WESPOTA thingies might be both master and slave, using TCP, UDP, serial and whatever else the standard defines.
Personally, at the moment, I don't have need for modbus beyond the 16-ch relais.
But other people may have - now or in the future.
So at least, I would keep this issue in mind when the architecture is refurbished, so that it easily can be integrated at a later time.