Q00J cpu timer question

[mattj]

Hi, Im new to the forum and new to plc programming. I have a small monitoring project to complete. Basically i need to monitor the cycle time of a production machine, using one input. E.g input on (pulses) start timing, input on again stop timing. i have created a ladder (flip-flop) to do this and it works fine, but how do i store the elapsed time in a registor so that it can be viewed or used at a later stage. If i just use the move function (MOV T1 D2) the data is lost when the timer resets. I need to collect 10 cyle times per hour and then work out the average the result will be displayed in excel using MX sheet software. Im using a QOOJ plc with remote i/o. Thanks Matt.

[Crossbow]

The TTMR teaching timer instruction will time how long some condition is on. So when you hit your pulse, use the FF command or SET to turn on a bit, then use that bit to trigger the TTMR instruction, and when you're done, reset that bit and TTMR will give you a time reading in seconds, tenths of a second, or hundredths of a second. Manual SH(NA)080039-J is the Q Common Instruction programming manual, and TTMR is detailed in it.

[mattj]

Thanks crossbow, I have tried to use the TTMR function, but it doesnt seem to be valid in the plc im using. So any other suggestions? Thanks Matt.

[funfrok]

You can use Index registers. (Z0-Z15) Everytime you move value increase index register, so your data will be stored for future examination. MOV T1 D100Z0 INC Z0 LD> Z0 K99 RST Z0 Something like this.