Alternate demo

Description

This alternate demo is provided to show a basic example of how to communicate between the PLC and Robot using the I/O Setup page on the Installation Tab to define variable names to specific registers.

The PLC program remains the same as in the main Demo, but the ur-eip-demo.urp program must be modified.

 
Robot — Step 1: I/O Setup — input registers

1. Navigate to the I/O Setup page in the Installation file. Scroll down in the Input panel and locate the GP_int_in[0] and GP_int_in[1] registers. Select each register and rename these to desired Robot Variable names, in the screenshot below “a_plc” and “b_plc” have been assigned to the input registers.

 
Robot — Step 2: I/O Setup — output registers

Complete the same process in the Output panel, locate GPio[0] and rename. In the example below “sum_robot” was used. These variables will now be available in of your Robot Program.

 
Robot — Step 3: Program — assignment expressions

Navigate to the Program Tab, and select Line 4. From the Assignment Node Command Tab, select the Expression and navigate to Inputs on the expression editor window.

 
 

Replace read_input_integer_register(0) by selecting the new variable from the previous step (a_plc) from the bottom of the Input drop-down. Select Submit.

 
 

 

Your program tree should match the documentation. Complete the same steps and change read_input_integer_register(1) to b_plc. Verify on the Variables tab that you are still reading the correct integer values from the PLC.

 
Robot — Step 4: Set node for output

4. Replace the Script Command on Line 8 of the robot program with a Set node. From the Command Tab of the Set Node, select the Output variable from the Installation Tab (sum_robot) and then select the name of the variable that contains the sum of the two integers being received by the Robot.