TON, TOF and RTO on a ControlLogix: What Each One Does When the Rung Goes False The prescan row for a TOF in 1756-RM018A sets .ACC equal to .PRE. Not to zero, the way a TON’s does — to the preset, which is the value that means the timer has already finished, so the first … Read more
Pick between TON, TOF and RTO, find out what retentive actually covers on each platform, and stop losing an afternoon to a timer that never times out.
A CTU on the end-of-line eye of a takeaway running 0.500 m/s read 12,480 at the end of a shift in which the palletiser stacked 12,116 cartons, and it had been drifting the same way, 2.6% to 3.4% high, for three weeks. Counting cartons was one contact and a counter, and there was nothing wrong … Read more
If you are using Control Logix plc, we will make a flip-flop example with AOI. I will show you how to easily make a flip-flop block with add-on instructions. Normally, you can use one Timer On and one timer-off instruction for the flip-flop circuit. But creating a new one for each flip-flop circuit would be … Read more
Siemens PLC Programming Drive Motor Regarding the previous article (Siemens Tia Portal). [irp posts=”3465″ name=”Siemens TIA (Totally Integrated Automation) Portal”] Let’s take an example and show step by step. In order to drive a DC Motor 30 seconds by a button (START and STOP), the following ladder diagram can be used. We choose the first … Read more