IOGet()

IO* IOGet

(

int32_t

nodeNumber

)

Description:

IOGet takes a node reference number and returns a pointer to the IO object it represents.

Parameters

nodeNumber

The reference number of the node the IO is on. The first I/O node is the 0th Node. Non-I/O Nodes are not considered for this numbering schema.

Returns

(IO*) A pointer to the IO specified.

Remarks

This function is also available in RapidSequencer. Part of the Create and Initialize RapidCode Objects method group.

Sample Code:

IOPoints

      const int NODE_INDEX = 0;   // The EtherCAT Node we will be communicating with
                                  //const int INPUT_INDEX = 0; // The PDO Index in that Node
      const int OUTPUT_INDEX = 0; // The PDO Index in that Node
 
      // IOPoint input0 = IOPoint.CreateDigitalInput(controller.IOGet(NODE_INDEX), INPUT_INDEX); // Automatically gets the memory index of a specified node and input index
      IOPoint output0 = IOPoint.CreateDigitalOutput(controller.IOGet(NODE_INDEX), OUTPUT_INDEX); // Automatically gets the memory index of a specified node and input index
 
      output0.Set(false);
 
      controller.SampleWait(1);
      Assert.False(output0.Get(), "The getter function should return a value equal to false");

Note

The RMP assigns a logical number to each I/O node that it encounters during initialization. This number will be consistent as int32_t as the network node's relative location on the network remains the same.

Examples

SingleAxisSyncOutputs.cpp, Template.cpp, and UserLimitDigitalInputAction.cpp.