LED displays

KL1501/KS1501
LED	Color	Meaning
Signal LED1	green	Signal at up/down input (operation mode: up/down counter) Signal at gate input (operation mode: gated counter) Signal at clock1 input (operation mode: 2 counters)
Signal LED2	green	Signal at clock input
Signal LED3	green	Signal at output 1
Signal LED4	green	Signal at output 2

KL1512/KL1512
LED	Color	Meaning
Signal LED1	green	Signal at input 1
Signal LED2	green	Signal at input 2
Run LED	green	The RUN LED indicates cyclic data transfer with the higher-level controller. The RUN LED goes off if no process data is exchanged for 100 ms.