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 program to a PLC.
Now, we download the ladder program to the simulator.
We can see that the program will be downloaded to the Emulator at Node 0.
A prompt asks if we want to go “Online” once we download the program to the “Emulator”.
In the “RSLogix 500” window, we see that the ladder icon is “spinning”, and ...
The timer, “T4:0”, runs once and times out. Because the “Done” bit remains true, the “ADD” instruction continues to execute and increment the value of “N7:0”. When it reaches 10, it does reset.
However, the “ADD” instruction runs every scan instead of just once every 5 seconds.
This is not wha...
So, what do we need to do to fix the logic?
We see that the timer ran once and stopped. We wanted it to run to the preset value and then restart.
To do this, we need to add an “XIO” instruction, so that when the timer preset is reached and the “DONE” bit is set, the timer is reset and starts o...
