Question about reading Modicon addresses.
I have a Honeywell SX chart recorder that can be configured as a Modbus slave. It essentially reads analog signals and plots them on a graph.
I have successfully connected to the device and when I hooked up a generator I see my number bouncing around with the signal.
Unfortunately the numbers are waaaay off (478,590,000,000 and such when it should be around 250). I have tried using every Modbus prefix IA has listed in the help manual. Obviously there is something wrong with the bit pattern, but I can’t seem to figure out what it is.
I have attached the page of documentation I am using to address my tag. It is page 43 of this document:
Any advice on how to get real numbers out of this guy?