ProSoft Technology MVI69-DFNT - Manual (Page 33)

MVI69-DFNT ♦ CompactLogix or MicroLogix Platform Configuring the MVI69-DFNT Module
EtherNet/IP Client/Server Communication Module User Manual
ProSoft Technology, Inc. Page 33 of 167
May 14, 2014
2.4 [DFNT Client x Commands]
This section defines the EtherNet/IP commands to be issued from the module to
server devices on the network. These commands can be used for data collection
and/or control of devices on the TCP/IP network.
2.4.1 Command List
In order to interface the virtual database with Rockwell Automation
Programmable Automation Controllers (PACs), Programmable Logic Controllers
(PLCs), or other EtherNet/IP server devices, you must construct a command list.
The commands in the list specify:
 The message type to be utilized to access the server device
 The registers in the module's virtual database to be used as the source of
data sent or destination of data received
 The polling interval of each command
 The number of data points to be read or written
 The byte-order of the data, controlled by a swap code
 The Ethernet IP address of the target server device
 The chassis slot number of the target server device
 The command and function code of the operation to be performed (read or
write)
 The data area to access in the server device
There is a separate command list for each of the different message types
supported by the driver. Each list is processed from top to bottom, one after the
other, until all specified commands are completed, and then the polling process
begins over again.