I'm trying to program a SLC500. It's 1747-L40A.
I looked up an online manual and it sounds like this model does not have the internal calendar clock tags I can use. I just wanted to confirm. Using RSLogix500, I created a new RSS file then selected this model as the controller but the tag address editor still lists S39 ~ S44 as if those tags are avaiable. But if I use any of tags, I get an error (excessive element numbers)
Also, on the same RSS file, I cannot chose the 1.0 timer base. It only lets me select 0.01 or 0.001 timer base otherwise I get an error when I verify the program. Also it does not let me set the timer preset more than 100000. Am I doing something wrong? Or is this PLC just a very old model with many limitations?
I looked up an online manual and it sounds like this model does not have the internal calendar clock tags I can use. I just wanted to confirm. Using RSLogix500, I created a new RSS file then selected this model as the controller but the tag address editor still lists S39 ~ S44 as if those tags are avaiable. But if I use any of tags, I get an error (excessive element numbers)
Also, on the same RSS file, I cannot chose the 1.0 timer base. It only lets me select 0.01 or 0.001 timer base otherwise I get an error when I verify the program. Also it does not let me set the timer preset more than 100000. Am I doing something wrong? Or is this PLC just a very old model with many limitations?
