Sitara EVM board GSDML Installation

Add Sitara EVM board into the PLC network

Connect Sitara EVM board to PLC

Select one of Input, Output or I/O-Module

Slot allocation

Following table shows the allocation of slots:

Submodule / Telegram Selection

Following figure shows an expample of Module and Submodule/Telegram selection:

Submodule Peripharal Index

Following figure shows the Submodule Peripheral index definitions in context of total Subslots supported by IO-Device:

Module Access Point (MAP)

Module Access Point (MAP) is the access point for parametrization over PROFINET A-Cyclically Read / Write services. Easch Module has a virtual submoule which reperesents the module itself and provides Module/Submodule specific parameter. Followinf figures shows the Module/Submodule specific parameter which transfered at connetion phase to the device:

LED Control Submodule (MAP)

in this example we use an I/O-Submodule with one Byte of Input and Output Data to control and read the status of some LED supported on EVM-Board. Because of dynamically allocation of I/O-Submodule, we've to identify where the Submodule plugged which used for LED control. In this case the index of I/O-Submodule is 9. By the Cyclically Data-Exchange the appliction evaluates the MAP Module parameter to get the Pheripheral index (9) and process the:

• PND_APP_UpdateOutputData
• PND_APP_UpdateInputData
  

Output-Data from PLC and applay the Output-Data which is the Setpoint for LED

Input-Data by reading the actual status of LED from Hardware and actualizes the Input-Data.

Compile and Load the PLC program

Assign device name

In this example EVM board is asigned with sitara1:

Run the PLC program

Diagnostic status

Follwoing figure shows the diagnostic status of EVM board:

PTCP Line Delay Measurement

Follwoing figure shows the Line-Delay measured by EVM board:

DCP Blink

The DCP Blink is available over Accessible devices menu by PLC: