MrT

Thank you to you all for being so kind as to share your knowledge and ideas to assist me.  With a combination of your inputs, no pun intended, i have solved my puzzle.  I used 2 timers to create a Filpflop, the second resetting the inverted input on TON.I of the first timer and visa versa Works like a charm.  Thanks for the help

Hi, Thank you for your kind response.   Your solutions makes sense, however, it doesn't see to be carrying through for me. Where am i going wrong?

Hi All,    Please can you assist. I am trying to create a "delay" to slow down the rate that an action takes place. I place a TON function black, but once run once it does not reset. I need to know what function I need to put in the following rung or at the end of the rung to reset the TON function again. Basically want to check a condition every 5 seconds.   Any ideas?   Many thanks

Hi All,  I need some advice please: I have the following setup: NX1P2-9B24DT1 (PLC) NX-PF0730 (24v Card) NB3Q-TW01B (HMI) 3G3MX2-AB015-E CHN (Motor Drive 1.5 KW) 3G3AX-MX2-ECT (Ethercat module for Motor Drive) NX-EC0122 (Encoder Card) E6C2-CWZ5B 360P/R 2M OMS (Encoder)   I need to count the pulses from the encoder over a set period of time. I only require one chanel, z for instance. 360 Pulses per rotation is more than sufficient resolution.  I need to count these pulses of a set time period to determine the speed a media is moving through the encoder wheel and adjust the speed of the motor accordingly.  I know how to alter the motor frequency and thus control rpm, I can calculate the speed by determining through calculation,  the distance traveled relative to wheel diameter.    My only unknown is how to read a number of pulses on a channel over a set period of time...200ms (0.2 sec) as an example to have as an input for my calculation. I am also not sure of the correct setting for this application on the sysmac setup of the Encoder card.   I would be grateful for some guidance.    Many Thanks,