Recent content by philspargo

How can I add additional TTL ports (op2, op3, op4) with different times, to the code?   LOOP:    TSTGE CH 4 VAR1     TSTGT CH 21       SET VAR1 0       TSTEQ VAR1 OP8     GOTO LOOP     SET OP8 VAR1     TSTEQ VAR1 1     EMAIL  EM1     TSTEQ VAR1 0     EMAIL EM2   Credit goes to rossw for the code...

Could you possible implement the "set var8 line number....delay 8000"  in some simple code (turning op1 on - off, etc..) so that I could follow the code. Sorry for being so novice, but I will learn! Thanks for the support!

So loop is just executed once?

I don't see "loop:" listed as a opcode.   Can someone explain  the code Flow. (when you break out of the loop and where it goes)   Thanks again!

I'm trying to learn PLC and have a problem following the code.   After  a "callsub", does the the program return to start OR the next line after the "callsub" ?    Once I understand the basic flow of the program, I'll be able to make some progress.   Thanks!

I'm trying to learn PLC and have a problem following the code.   After  a "callsub", does the the program return to start OR the next line after the "callsub" ?   Once I understand the basic flow of the program, I'll be able to make some progress.   Thanks!

When do you use the NPO line? I'm a little confused... after doing a "callsub" and then the "RET", where does the program flow to? To "STARt", or the line after the previous "callsub" ?

I would like to turn on op1 at 8:00 AM, for 1 minute, on Monday, Wednesday and Saturday's IF ip1 = 1.

I'm a hardware guy with no code experience. I was wondering if some of you code people could post some examples with remarks? Just the basics, so us non-coders can build upon it and understand the flow. Thanks!!

I follow the logic except for: SUB AIP1 AIP2 RAM2 (built-in a/d converters?) Please explain.

I would like to turn ON one relay, for one minute, on every hour. This will give me something to experment with.

I'm new to plc.. has anyone written code for controlling a sprinkler system. I need to turn 4 relays on 4 times a day for 5 minutes. I just need some code to follow and then I should be able to modify it. Any help will be appreciated!