ProSoft Technology MVI56E-MCMR - Manual (Page 79)

MVI56E-MCMR ♦ ControlLogix Platform Configuring the MVI56E-MCMR Module
Modbus Communication Module with Reduced Data Block User Manual
ProSoft Technology, Inc. Page 79 of 225
May 13, 2014
The COP statement for this type of data is the same as shown in Read Multiple
Floating-Point Registers (page 76).
Write to Enron/Daniel Floats
To issue a Write command to Enron/Daniel Floats, use the Float Flag and Float
Start parameters within the ModDef controller tags.
The following table describes the addresses that will be written to by the module.
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
Configure the Float Start and Float Flag parameters as shown.
The Float Flag causes the module to use the Float Start parameter to determine
which MB Address in Device requires a write command to issue double the
number of bytes.
With the above configuration, any MB Address in Device > 7000 is known to be
floating-point data. Therefore, a count of 1 will send 4 bytes of data, instead of
the normal 2 bytes of data to a non Enron/Daniel floating-point register.
1 First, copy the floating-point data from the ControlLogix processor into the
MCMR.DATA.W RITE D ATA array used by the MVI56E-MCMR module. Below
is an example.