Prosoft-technology MVI56E-LDM Manual de usuario descargar pdf (Pagina 76)

CIP API Functions ControlLogix Platform ♦ "C" Programmable

Developer's Manual Linux Application Development Module

Page 70 of 264 ProSoft Technology, Inc.

March 12, 2014

5 CIP API Functions

In This Chapter

 CIP API Initialization Functions .............................................................. 73

 Object Registration ................................................................................ 79

 Special Callback Registration ................................................................ 84

 Connected Data Transfer ...................................................................... 99

 Tag Access Functions ......................................................................... 110

 Messaging ........................................................................................... 138

 Miscellaneous Functions ..................................................................... 166

The following table lists the CIP API Library functions. Details of each function

follow in subsequent sections:

Function Category

Function

Initialization

OCXcip_Open - Starts the backplane engine and initializes access to the CIP

API.

OCXcip_OpenNB - Allows access without opening backplane access.

OCXcip_Close - Terminates access to the CIP API.

Object Registration

OCXcip_RegisterAssemblyObj - Registers all instances of the Assembly

Object, enabling other devices in the CIP system to establish connections with

the object. Callbacks are used to handle connection and service requests.

OCXcip_UnregisterAsssemblyObj - Unregisters all instances of the

Assembly Object that had previously been registered. Subsequent connection

requests to the object are refused.

Callback Registration

OCXcip_RegisterFatalFaultRtn - Registers a fatal fault handler routine.

OCXcip_RegisterResetReqRtn - Registers a reset request handler routine.

Connected Data Transfer

OCXcip_WriteConnected - Writes data to a connection.

OCXcip_ReadConnected - Reads data from a connection.

OCXcip_WaitForRxData - Blocks until new data is received on connection.

OCXcip_ImmediateOutput - Transmit output data immediately.

OCXcip_WriteConnectedImmediate - Update and transmit output data

immediately.

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Prosoft-technology MVI56E-LDM Manual de usuario Pagina 76