ProSoft MVI56E-MCMR User Manual page 75

MVI56E-MCMR ♦ ControlLogix Platform
Modbus Communication Module with Reduced Data Block
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
47001 32 bit REAL
47002 32 bit REAL
47003 32 bit REAL
47004 32 bit REAL
47005 32 bit REAL
47006 32 bit REAL
47007 32 bit REAL
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.R
You must not use addresses 1000 to 1013 in the Internal Address field for any other Modbus
Master commands.
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Parameter
Demand
Reactive Power
Apparent Power
Power Factor
Voltage: Line to Line
Voltage: Line to Neutral
Current
Configuring the MVI56E-MCMR Module
D array.
EAD ATA
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