5.3.4.3 Terminal coding
You can provide the terminals with coding pins (3ZY1440-1AA00). These assist you when
replacing devices so as to avoid confusing terminals.
Figure 5-28 Module with coding pins
Figure 5-29 Stud position rotated by 60° in each case
Description of the hardware
5.3 Connecting / wiring
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 161