Device DDT Parameters

Device DDT Parameters (Remote I/O Drop)

This topic describes the Control Expert Device DDT tab for an Ethernet remote I/O drop that includes a 140CRA31200 or BMXCRA312•0 adapter module. A derived data type (DDT) is a set of elements with the same type (ARRAY) or with different types (structure).

The device DDT instance name can be defined manually but, when adding a module, a default device DDT instance name is defined by Control Expert

NOTE:

These instructions assume that you have already added a drop to your Control Expert project.
Refer to the Derived Data Types chapter to create, update, and view derived data types.

Access the Device DDT Tab

Access the Device DDT parameters in Control Expert:

Step	Action	Comment
1	Expand (+) EIO Bus in the Control Expert Project Browser	Path: Project Browser > EIO Bus > EIO Quantum Drop/EIO Modicon X80 Drop
2	Double-click on the EIO drop (Quantum or Modicon X80.	The EIO drop window appears. It contains the parameter tabs for the remote I/O drop.

Parameters

Use the Control Expert Device DDT tab to configure these parameters for the adapter on the remote I/O rack:

Parameter		Description
Implicit device DDT	Name	A default device DDT instance name is defined by Control Expert. NOTE: There are 2 device DDT types for Ethernet remote I/O drops in a Quantum system: 140CRA31200 adapter: T_U_DROP_STD_IN BMXCRA312•0 adapter: T_M_DROP_EXT_IN There is 1 device DDT type for a Quantum Ethernet remote I/O drop in an M580 system: 140CRA31200 adapter: T_Q_DROP_EXT_IN
Implicit device DDT	Type	module type (uneditable)
Goto details		link to the DDT data editor screen