ProSoft Technology ControlLogix inRAx MVI56E-MNETR User Manual page 57

MVI56E-MNETR ♦ ControlLogix Platform
Modbus TCP/IP Interface Module with Reduced Data Block
Minimum Command Delay
0 to 65535 milliseconds
This parameter specifies the number of milliseconds to wait between the initial
issuances of a command. This parameter can be used to delay all commands
sent to Servers to avoid "flooding" commands on the network. This parameter
does not affect retries of a command as they will be issued when failure is
recognized.
Response Timeout
0 to 65535 milliseconds
This is the time in milliseconds that a Client will wait before re-transmitting a
command if no response is received from the addressed server. The value to use
depends upon the type of communication network used, and the expected
response time of the slowest device on the network.
Retry Count
0 to 10
This parameter specifies the number of times a command will be retried if it fails.
Float Flag
or N
Y
ES O
This flag specifies how the Server driver will respond to Function Code 3, 6, and
16 commands (read and write Holding Registers) from a remote Client when it is
moving 32-bit floating-point data.
If the remote Client expects to receive or will send one complete 32-bit floating-
point value for each count of one (1), then set this parameter to Y
, the Server driver will return values from two consecutive 16-bit internal
Y
ES
memory registers (32 total bits) for each count in the read command, or receive
32-bits per count from the Client for write commands. Example: Count = 10,
Server driver will send 20 16-bit registers for 10 total 32-bit floating-point values.
If, however, the remote Client 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 N
setting.
You will also need to set the Float Start and Float Offset parameters to
appropriate values whenever the Float Flag parameter is set to Y
Float Start
0 to 65535
F
This parameter defines the first register of floating-point data. All requests with
register values greater than or equal to this value will be considered floating-point
data requests. This parameter is only used if the Float Flag is enabled. For
example, if a value of 7000 is entered, all requests for registers 7000 and above
will be considered as floating-point data.
ProSoft Technology, Inc.
June 14, 2011
Configuring the MVI56E-MNETR Module
. When set to
ES
, which is the default
O
.
ES
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