Emerson E2 Using the Output Definitions/ Status Screen, Setting Up Digital Outputs

Figure 9-11- Output Data Type Pop-Up Menu

Depending upon what type of output you selected, the Digital Output, (see Section 9.2.7.3, Setting Up Digital Outputs) Pulse Digital Output, or One Shot Digital Output screen will appear.

9.2.7.2Using the Output Definitions/ Status Screen

The Output Definitions/Status screen serves a dual

purpose. It is both an at-a-glance summary of all points on each output board and a menu where output points may be selected and configured.

In order for the E2 to properly control devices that are hooked to an I/O board, you must first tell the E2 what type of output the devices require. This is achieved by using the Output Definitions/Status screen.

(SETUP),  (DEL/MOD),  (LOOK UP), and  (CANCEL) are the function keys along the bottom of the screen available for the Output Definitions/ Status screen.

The Output Definitions/Status screen serves a dual

purpose. It is both an at-a-glance summary of all points on each output board and a menu where output points may be selected and configured.

Each record in this screen contains the following infor- mation about a point:

1.Type (read-only)

Board Type shows which kind of output board the point is on. The Board Type field will read either 8RO, 8DO, or 4AO for I/O Network 16AI boards, E16AI, and 8ROE for Echelon Network 16AIe boards.

The last character of the Board Type field also shows what type of input the point is defined as. If a point has already been defined as an analog or digital input, this field will signify its input type with an “A” (for analog) or “D” (for digital).

2.Board (read-only)

The point’s board number appears under the Board field.

3.Point (read-only)

The point number of each point appears in its record in the Point field.

4.Type (read-only)

The Type field shows the output’s data type. Possible Types are: A (Analog), D (Digital), O (One Shot), or P (Pulse). If the point has not been identified, a “-” will appear at the end of the field instead.

5. Application

Select which application you wish to set up inputs to. Pressing  (LOOK UP) when on a defined point will open the Application Selection menu--a list of application types currently existing in the box.  (CANCEL) will cancel this menu.

6. Association

If a point has already been defined and is currently being used by an application, the name of the input to which the point is connected will be displayed in the Asso- ciation field.

Association is the application’s user-defined property that is associated with the point. Multiple applications attached to single input will all be displayed in the Associ- ation field. Pressing  (LOOK UP) when on a set application will bring up a list of property selections.  (CANCEL) will cancel this menu.

7.Value (read-only)

Value shows the sensor value in the units you select for the output type.

9.2.7.3Setting Up Digital Outputs

Open the Digital Output screen by selecting a Digital (D) input from the Output Status screen Figure 9-10and pressing  (SETUP).

Digital Outputs are ON when the E2 calls for them to be ON, and OFF whenever the E2 calls for them to be OFF. Most outputs that directly activate and deactivate output devices will need to be set up as the Digital output type.

The 8RO, 8IO, and MultiFlex Outputs Input and Output Setup • 9-13