Starter kit for an easy introduction to safety control technology. The starter kit contains the safety-related control relay ES4P-221-DMXD1, the easy800-USB-CAB programming cable for connecting the safety control relay to the USB port of the PC, the easySoft-Safety programming software on CD as well as documentation and manual as PDF. This provides 14 safe digital inputs, 1 safe and redundant relay output 6A, 4 transistor outputs 0.5A and 4 test signal outputs.