TimD
Lifetime Supporting Member
Hello,
I have used counters to totalize flow before, but never the high speed counter.
I have a flowmeter, which has a pulse range of say, 0 - 10,000 pulses per second. I am using the dedicated high-speed pulse inputs (not 4-20ma) in the controller.
Fortunately, the Micro 1400 has 6 available 100 khz counters, which easily cover the above range.
I have the Micro 1400 Reference manual, but after dozens of pages explaining the Function File for HSCn, it only lists two instructions. One is HSL, the other is RAC. RAC is very self-explanatory, it resets the accumulator. HSL is a bit worrisome to me, since it's listed as an output.
My question is, How do I set up the HSC for proper reading, and TOTALIZATION? I will be totalizing gallons of liquid used, and I can figure out the scaling OK, but never set this kind of thing up.
Please help!!! I'm using Logix 500. Many Thanks!
Tim
I have used counters to totalize flow before, but never the high speed counter.
I have a flowmeter, which has a pulse range of say, 0 - 10,000 pulses per second. I am using the dedicated high-speed pulse inputs (not 4-20ma) in the controller.
Fortunately, the Micro 1400 has 6 available 100 khz counters, which easily cover the above range.
I have the Micro 1400 Reference manual, but after dozens of pages explaining the Function File for HSCn, it only lists two instructions. One is HSL, the other is RAC. RAC is very self-explanatory, it resets the accumulator. HSL is a bit worrisome to me, since it's listed as an output.
My question is, How do I set up the HSC for proper reading, and TOTALIZATION? I will be totalizing gallons of liquid used, and I can figure out the scaling OK, but never set this kind of thing up.
Please help!!! I'm using Logix 500. Many Thanks!
Tim
Last edited: