1
I/O bus (10 pins, male) to connect the previous terminal unit, the CPU terminal base or the
communication interface module to the terminal unit
2
I/O bus (10 pins, female) to connect other terminal units
3a Plug (2 x 25 pins) to connect the inserted I/O modules
3b Plug (2 x 19 pins) to connect the inserted I/O modules
4
With a screwdriver inserted in this place, the terminal unit and the adjacent terminal unit can
be shoved from each other
5
Holes for screw mounting
6
40 terminals for signals and process supply voltage
7
DIN rail
8
White border signifies hot swap capability of the terminal unit
WARNING!
Risk of explosion or fire in hazardous environments during hot swapping!
Hot swap must not be performed in flammable environments to avoid
life-threatening injury and property damage resulting from fire or explosion.
Hot swap
Device specifications
Terminal units (AC500 standard) > TU515, TU516, TU541 and TU542 for I/O modules
2022/01/31
3ADR010278, 3, en_US
127