HART Device Applications

This chapter describes how to add and monitor HART devices that are connected to your HART input or output module in a Studio 5000 Logix Designer application project.

You must complete the following tasks before you can configure connection for the HART device:

Create a Studio 5000 Logix Designer application project.
Add a controller to the project.
Add and configure an analog HART I/O module.

Before using the HART capabilities, verify the following:

The I/O module and the associated field device are working properly in the analog 4…20 mA mode.
The channel is configured as 4…20 mA range with HART enabled.
The field device is HART capable.
No more than one HART field device is connected to each channel.
Notch Filter of input channel or Ramping Rate of output channel is set to a valid value.

Input data of HART device that is device status, dynamic, or device variable values and status, are sent to Logix 5000 controller at the RPI. At the RPI, not only does the module send input data of the HART devices to the controller, but also the controller sends data for the HART devices to the module. For example, the controller sends data to reset Configuration Changed status or initiate an execution of a pre-configured HART command.