The following video shows a 220-volt lamp being switched on and off by the relay system at a frequency of 1 hertz, accurate to within 1%

This oscilloscope trace demonstrates the precision of the timing: the rising edges occur at intervals of 1.01 seconds.

And here you see a picture of the new output-module of the relay system. The new memory mapped output register is located at memory address 2.

And this was the programm to switch on/off the lamp:

daten[0] = 0x4000;    // BA

daten[1] = 3;

daten[3] = 0x3540;    // NOT

daten[4] = 0x0000;

daten[5] = 0x2800;    // STAM

daten[6] = 0x0002;

daten[7] = 0x3540;    // NOT

daten[8] = 0x0000;

daten[9] = 0x2800;    // STAM

daten[10] = 0x0002;

daten[11] = 0x3540;    // NOT

--- and so on until end of memory ---

The system is not fast enough to switch on/off the lamp using a loop...