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Cip api functions, Backplane device driver – ProSoft Technology MVI56E-LDM User Manual

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Understanding the MVI56-LDM API

ControlLogix Platform ♦ "C" Programmable

Developer's Manual

Linux Application Development Module

Page 36 of 264

ProSoft Technology, Inc.

March 12, 2014

4.3

CIP API Functions

The CIP API communicates with the ControlLogix modules through the
backplane device driver. The following illustration shows the relationship
between the module application, CIP API, and the backplane driver:

4.4

Backplane Device Driver

The backplane device driver contains the functionality to perform CIP messaging
over the ControLogix backplane using the Midrange ASIC. The user application
interfaces with the backplane device driver through the CIP API library.
The backplane device driver for the MVI56E-LDM module is libocxbpeng.so.
The driver implements the following components and objects: