I've never used modbus. I'm looking at AC usage meters that support modbus over RS-485. And the controller on my Vertiv rectifier says this in the manual:
"e) Modbus Protocol: The NCU can communicate with an AC Meter using the Modbus protocol." ....and that's literally all it says. Is this something standardized where I can expect any modbus capable AC meter to work the same? Is this plug and play or would I have to learn yet another discipline? If it's not an easy answer I can take it to Vertiv tech support. Just wondering if this group magically has the answer.
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