Situation: If you had a gate entry, you need a gate switch to tell you if the gate is open or closed. The gate switch is wired to a 2 channel estop device rated for category 4.
Is it true under a category 4 protection that you can not daisy chain gate switches (rated below category 4) from...
I remember seeing this on here and looked at the faq and did a quick search.
general conveyor use
Motor 480vac, 3.1fla 60 hz 2 hp rated for vfd use.
VFD at 46 hz due to speed changes, runs all day at this this speed. stops only on flow control or motor upstream stopping
Is there a limit to...
does anyone have a rule of thumb on laying out the address memory area in the symbol table for step 7?
If you have Bool's do you usually put them in M 1-100
Word's in M 102-200?
I have a few examples from past programs or projects. But it seems all over the place in the memory map.
I am...
Not a siemens step 7 expert
I can do this same thing in AB RSLogix5000.
How do you create an array of counters in Step 7?
I can not do it as a DB object. Is their another way besides creating each one in the symbol table?
