ProSoft MVI56E-MCMR User Manual

MVI56E-MCMR ♦ ControlLogix Platform Configuring the MVI56E-MCMR Module
Modbus Communication Module with Reduced Data Block User Manual
ProSoft Technology, Inc. Page 75 of 223
Read Floats with Single Modbus Register Address (Enron/Daniel Float)
Some Modbus slave devices use a single Modbus address to store 32 bits of
data. This type of data is typically referred to as Enron or Daniel Floating-Point.
A device that uses this addressing method may have the following Modbus
Memory Map.
Address
Data Type
Parameter
47001
32 bit REAL
Demand
47002
32 bit REAL
Reactive Power
47003
32 bit REAL
Apparent Power
47004
32 bit REAL
Power Factor
47005
32 bit REAL
Voltage: Line to Line
47006
32 bit REAL
Voltage: Line to Neutral
47007
32 bit REAL
Current
This type of device uses one Modbus address per floating-point register. To read
these values from the Slave device, configure the following command within the
module.
Notice that the count is now set to a value of 7. Because the Slave device utilizes
only 7 Modbus addresses, a count of 7 will cause the Slave to respond with 14
registers (28 bytes) of information.
Important: This command will still occupy 14 register within the MCMR.DATA.READDATA array.
You must not use addresses 1000 to 1013 in the Internal Address field for any other Modbus
Master commands.

ProSoft MVI56E-MCMR Specifications

General

Brand	ProSoft
Model	MVI56E-MCMR
Category	Control Unit
Language	English