Examples 6.7 Edge evaluation (wiping pulse) ECO Control 667E has 128 programmable wiping pulses for the detection of status changes of logical signals (edge evaluation). The pulses can be used for both rising and falling edges. 6.7.1 Programmable wiping pulse at rising edge Wiring diagram Circuit symbol Instruction list = PP00.00 L I00.00 L PP00.00 = O00.00 Signal curve T = cycle time 107