I didn't say they are being scanned by the PLC. This means that these rungs can be scanned by the PLC.
Now it says "Edits Exist".Īnother note to start observing during edits is the green bars on the left and right of the rung. If you look at the image above before our edit you will see it says "No Edits". For DeviceNet this example converts 16 bit words to 32 bit words and 32 bit words to 16 bit words. This PLC code will program the RETA-01 to activate Datawords.
HOW TO USE RSLOGIX 500 HOW TO
There is a much more subtle indicator you should always check when going online with a PLC and that is right below the "REMOTE RUN" indicator. For EtherNet/IP this example program reads and writes words 5 12 with a CIP message block (MSG). In today's article I review how to use RSLinx Classic Lite and RSEmulate 500 with FactoryTalk View Studio. When you test your edits it will include deleting this rung. Or someone else with a different computer could accidentally mark a rung for deletion somewhere deep inside the program and you make an edit somewhere else. You can now go offline and come back to this PLC another day and that rung is still marked for deletion. You saw how easily you could accidentally hit the delete key and mark a rung for deletion. For the casual user, the RSLogix software is best operated using the point-and-click approach.
HOW TO USE RSLOGIX 500 SERIAL
The PLC and the PC used to program it are connected directly through a serial RS-232 link.
Icons for these programs should already be on the desktop. Here is the trick to the capital DDDDDDs that makes them not so obvious. Rockwell Software RSLogix500 version 6.30 is used to program the Allen-Bradley SLC-500's. One seemingly obvious indicators is the DDDDDDs on the left side of the rung.Ĭapital letters in the area circled in red to the left of the rung means these edits are in the PLC processor. You have two indicators that this has happened: While it isn't deleted yet, it has been marked in the processor to be deleted during the next test of edits. THIS IS IMPORTANT! It really is that easy to delete a rung in a program.
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