MVI56E-MNETC/MNETCXT Configuration MVI56E-MNETC/MNETCXT ♦ ControlLogix Platform
User Manual Modbus TCP/IP Client Enhanced Communication Module - Client/Server
Page 40 of 172 ProSoft Technology, Inc.
September 20, 2018
Enron-Daniels
YES or NO
This flag specifies how the Slave driver will respond to Function Code 3, 6, and
16 commands (read and write Holding Registers) from a remote master when it
is moving 32-bit floating-point data.
If the remote master expects to receive or will send one complete 32-bit floating-
point value for each count of one (1), then set this parameter to YES. When set to
YES, the Slave driver will return values from two consecutive 16-bit internal
memory registers (32 total bits) for each count in the read command, or receive
32-bits per count from the master for write commands. Example: Count = 10,
Slave driver will send 20 16-bit registers for 10 total 32-bit floating-point values.
If, however, the remote master sends a count of two (2) for each 32-bit floating-
point value it expects to receive or send, or, if you do not plan to use floating-
point data in your application, then set this parameter to NO, which is the default
setting.
You will also need to set the Enron-Daniels Float Start and Enron-Daniels Float
Offset parameters to appropriate values whenever the Enron-Daniels parameter
is set to YES.
Float Start
0 TO 65535
Whenever the Enron-Daniels parameter is set to YES, this parameter determines
the lowest Modbus Address, received in commands from a remote master, to
consider as requests to read or write floating-point data. All commands with
address values greater than or equal to this value will be considered floating-
point data requests. All commands with address values less than this value will
be considered normal 16-bit register data requests.
This parameter is used only if the Enron-Daniels parameter is set to YES. For
example, if a value of 7000 is entered, all commands received with addresses of
47001 (or 407001) and above will be considered as requests for floating-point
data and 32-bits of data will be returned for each count of one in the command.
You will also need to set the Enron-Daniels Float Offset parameter to an
appropriate value whenever the Enron-Daniels parameter is set to YES.
Enron-Daniels Float Offset
0 to 9999
This parameter defines the start register for floating-point data in the internal
database. This parameter is used only if the Enron-Daniels parameter is enabled.
For example, if the Float Offset value is set to 3000 and the float start parameter
is set to 7000, data requests for register 7000 will use the internal Modbus
register 3000.
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