Plc-5 controller example, Plc-5 controller example -19 – Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx User Manual

Page 103

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Using the I/O

5-19

20-COMM-D DeviceNet Adapter User Manual

Publication 20COMM-UM002G-EN-P

PLC-5 Controller Example

Creating an RSLogix 5 Project, Version 7.20 or Later

To transmit (read and write) data between the controller and drive, you must
create discrete I/O instructions in the controller for Logic Command/Status,
Reference/Feedback, and Datalinks.

1. Start RSLogix 5 software.

The RSLogix 5 window appears.

2. Select File > New to display the Select Processor Type screen.

3. Assign a name for the processor.

4. From the pull-down menus, choose the appropriate choices to match

your PLC-5 controller and application.

Important: Note that for this example, the processor being used has

direct Ethernet communication capability. DeviceNet
always uses a dedicated module (for example, 1771-SDN
scanner, and so forth) which cannot be used for a direct
PLC-5 processor connection. Therefore, this example
screen shows an Ethernet configuration.

5. Click OK.

The RSLogix 5 project window appears.

Creating Logic for Communication Between the 1771-SDN Scanner and

PLC-5 Processor

To transmit (read and write) data between the 1771-SDN DeviceNet scanner
and PLC-5 processor, you must create message instructions that allocate
data table addresses in the controller. By doing the following configuration,
RSLogix 5 software automatically creates the needed logic rungs for this
communication.

1. In the RSLogix 5 project treeview left pane, double-click IO

Configuration to display the I/O Configuration - Chassis Table screen.

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