Technical data
  Installation Position • 21 
  Carrier Rail Properties 
WAGO-I/O-SYSTEM 750     
INTERBUS 
2.6 Mechanical Setup 
2.6.1 Installation Position 
Along with horizontal and vertical installation, all other installation positions 
are allowed. 
Attention 
In the case of vertical assembly, an end stop has to be mounted as an 
additional safeguard against slipping. 
WAGO item 249-116  End stop for DIN 35 rail, 6 mm wide 
WAGO item 249-117  End stop for DIN 35 rail, 10 mm wide 
2.6.2 Total Expansion 
The length of the module assembly (including one end module of 12mm 
width) that can be connected to the coupler/controller is 780 mm. When 
assembled, the I/O modules have a maximum length of 768 mm. 
Examples: 
  64 I/O modules of 12 mm width can be connected to one 
coupler/controller. 
  32 I/O modules of 24 mm width can be connected to one 
coupler/controller. 
Exception: 
The number of connected I/O modules also depends on which type of 
coupler/controller is used. For example, the maximum number of I/O modules 
that can be connected to a PROFIBUS coupler/controller is 63 without end 
module. The maximum total expansion of a node is calculated as follows: 
Warning 
The maximum total length of a node without coupler/controller must not 
exceed 780 mm. Furthermore, restrictions made on certain types of 
couplers/controllers must be observed (e.g. for PROFIBUS). 










