I am sure Forrest will know.  


From: Adam Moffett 
Sent: Thursday, October 26, 2023 5:38 AM
To: AnimalFarm Microwave Users Group 
Subject: [AFMUG] Modbus

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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