Rockwell-automation 284D ArmorStart - Safety Version - User Manual Manual de usuario descargar pdf (Pagina 162)

8-2 Using DeviceLogix™

There are many reasons to use the DeviceLogix functionality, but

some of the most common are listed below:

• Increased system reliability

• Fast update times (1 - 2 ms possible)

• Improved diagnostics and reduced troubleshooting

• Operation independent of PLC or Network status

• Continue to run process in the event of network interruptions

• Critical operations can be safely shutdown through local logic

DeviceLogix Programming

Example

The following example will show how to program a simple logic

routine to interface the ArmorStart with a remote hard-wired start-

stop station. In this case the I/O is wired as shown in the table.

Table 8.1 Hardware Bit Assignments and Description for the ArmorStart

Important: Before programming logic, it is important to decide on

the conditions under which the logic will run. As defined

earlier, the conditions can be defined by setting

parameter 8 (Network Override) and parameter 9

(Comm. Override) to the desired value.

1. While in RSNetWorx for DeviceNet, Double click on the

ArmorStart.

2. Click on the “DeviceLogix” tab. If you are on-line with a device a

dialog box will appear asking you to upload or download. Click

on “Upload.”

3. Click the Start Logic Editor button.

4. If programming off-line continue to step 5, otherwise click on the

“Edit” button. Click “Yes ” when asked if you want to Enter Edit

Mode. Once in edit mode the entire list of Function Blocks will

be displayed in the toolbar.

5. Left Click on the “RSL” function block. This is a reset dominate

latch.

6. Move the cursor into the grid, and left click to drop the function

onto the grid.

Input Table Output Table

Bit Description Bit Description

Input 0 Start Button Run Fwd Contactor Coil

Input 1 Stop Button N/A N/A

Input 2 N/A — —

Input 3 N/A — —

1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 319 320

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Rockwell-automation 284D ArmorStart - Safety Version - User Manual Manual de usuario Pagina 162