We append another rung so that we can add the logic to increment or add 1, to “N7:0” when the timer times up.
We navigate to the “Compute/Math” tab, and click on “ADD”.
We want to execute the “ADD” instruction when the timer times out.
The bit “DN” is set when the timer times out.
To add this to the logic, we move back to the “User” or the “Bit” tab.
The “User” tab has instructions that are most often used, one of which is the “XIC” instruction, “Examine if Closed”. This instruction appears in the list as a “normally open” contact.
The “XIC”, or “normally open” contact, is true when the bit address assigned to it is equal to 1, the “ON” state.
We click on “Source A” and enter the integer we wish to increment.
We enter 1 for “Source B”, the value we want to increment by.
For the “Destination”, we enter “N7:0”. When we press “ENTER”, the entries for the “ADD” instruction are complete, and the description and symbol for “N7:0” are shown...
To download the program to the RSLogix 500 simulation program, we need to do two things.
First, we must start the "RSLogix Emulate 500" program to provide the container for the program we just wrote and to provide a runtime environment for the program.
The “RSLogix Emulate 500” program runs th...
To download the program to the RSLogix 500 simulation program, the second application that needs to run is “RSLinx Classic”.
This program is the same program that would be required for connection to a physical PLC.
RSLinx provides the communication drivers required to download an RSLogix 500 ...
