Table of contents 6.1.5 NAND............................................................................ 93 6.1.6 NOR............................................................................... 93 6.1.7 XO: exclusive OR (antivalence) ......................................... 94 6.1.8 XON: exclusive NOR (equivalence)................................... 94 6.1.9 Seal-in circuit ................................................................... 95 6.2 Memory functions ................................................................... 96 6.2.1 Mainly resetting ...............................................................
96 6.2.2 Mainly setting.................................................................. 96 6.3 Switching circuits.................................................................... 97 6.3.1 OR-AND circuit................................................................ 97 6.3.2 Parallel circuit to output .................................................... 97 6.3.3 Network with one output................................................... 98 6.3.4 Networ with outputs and marker........................................ 99 6.4 Special markers used as AND/OR marker.............................. 100 6.4.1 Network with OR marker................................................
100 6.4.2 Network with AND marker ............................................. 101 6.4.3 Network with multiple use of the OR marker..................... 102 6.5 Circuit conversion................................................................. 103 6.6 Special-purpose circuits......................................................... 104 6.6.1 Impulse relay ................................................................. 104 6.6.2 Reversing circuit (reversing starter) with forced stop........... 105 6.6.3 Reversing circuit (reversing starter) without forced stop ...... 106 6.7 Edge evaluation (wiping pulse) ..............................................
107 6.7.1 Programmable wiping pulse at rising edge....................... 107 6.7.2 Programmable wiping pulse at falling edge...................... 108 6.7.3 Wiping pulse at positive signal ....................................... 109 6.8 Software timers..................................................................... 111 6.7.4 Wiping pulse at negative signal...................................... 110 6.8.1 Mnemonics.................................................................... 111 6