Prosoft-technology MVI71-DFNT Manual de usuario descargar pdf (Pagina 147)

MVI71-DFNT ♦ PLC 5 Reference

EtherNet/IP Client/Server Communication Module User Manual

ProSoft Technology, Inc. Page 147 of 175

February 3, 2011

Verify that the CIP radio-button is selected as the COMMUNICATION METHOD. The

ATH specifies the message route from the ControlLogix processor to the DFNT

module. Path elements are separated by commas. In the example path shown,

the first element is "Enet", which is the user-defined name given to the 1756-

ENET module in the chassis (you could substitute the slot number of the ENET

module for the name), the second element, "2", represents the Ethernet port on

the 1756-ENET module, and the last element of the path, "192.168.0.75", is the

IP address of the DFNT module, the target for the message.

More complex paths are possible if routing to other networks using multiple 1756-

ENET modules and racks. Refer to the Rockwell Automation Support

Knowledgebase for more information on Ethernet routing and path definitions.

This method of data transfer uses CIP messages to transfer data between the

ControlLogix processor and the module. Tag names define the elements to be

transferred. The following topics describe the support for the read and write

operations.

CIP Data Table Operations

CIP Data Table Write

CIP data table write messages transfer data from the ControlLogix processor to

the DFNT module. An example rung used to execute a write command is shown

in the following diagram:

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 174 175

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Prosoft-technology MVI71-DFNT Manual de usuario Pagina 147