DELAY us

The DELAY(μs) instruction causes a delay in μs. DELAY(μs) instruction does not use any timers/counters.
The NOP and JMP(Current Address+1) instructions are used to make delay.

PLC Cycle Time is 50 μs (F= 20 kHz).

The (COIL(set) + COIL(reset)) process lasts about 1 μs (Yellow graph).

Delays are 1, 2, 3, 4 μs (Blue graph).

LD, asm, HEX, Proteus in delay_us.zip