Originally posted by PLC:
Why was 16 profinet devices picked for a max on a 1200?
Originally posted by mass89:
I've never had issues with siemens support, actually would say they are one of the best/most responsive.
Could it be that at a certain level they want to push you to the s7-1500. Same on the HMI, some functions arent available on the basic line, but are available on the comfort line. I'm 100% sure that many functions could be available in the basic line.
Same as cars, all functions exist in the car but you pay to unlock them.
At some level, sure, they're trying to push you from a 1200 to a 1500, but even a 1500 only has 16 HW run time meters.
My first thought when I read this was "wait, people still need the CPU to do runtime tracking in HW?". I thought those were only there for legacy purposes, and you were expected to do it in software now. The 1500s have as many as the 400s (16), which seems to correlate.
Post your code.I have a question. It is related to RTM. I have more than one RTM in my program. After counting hours for a specific limit. I am resetting it by using mode 5 in RTM. But my problem is when ever I reset one counter. Others also got reset. All have there own and separate buttons and input outputs. Can anyone know what is the issue?
These are the two RTM they have separate mode inputs and separate outputs but when I reset one other also got reset. And when one is counting then other one also counting it. same value.Post your code.
NO. Its in an Organization Block.is this RTM in a function block?
The CPU operates up to 10 run-time hour meters to track the run-time hours of critical
control subsystems. You must start the individual hour meters with one RTM execution for each
timer.
Sorry to say, but I did not get what are you asking? Kindly ask again.Excuse my previous post, and this one, for its opacity, but ask yourself this question: how many of the CPU's 10 run-time hour meters are your code using?
The S7-1200 CPU operates ten RTMs (Run-Time hour Meters). The NR input parameter to the RTM instruction determines which of those ten that instruction uses. Since the value of NR is the same, i.e. 0, on all of the RTM instructions in the program, the CPU uses the same, i.e. only one, run-time hour meter for all of those instructions.Sorry to say, but I did not get what are you asking? Kindly ask again.