Mounting
4.2 Mounting modules
Distributed I/O system
28
System Manual, 08/2021, A5E31861578-AJ
Drill holes of the modules
All modules of the ET 200AL distributed I/O system feature a uniform drill pattern.
•
All module housings are axisymmetrical.
•
The distance between the top and bottom drill hole is identical for all modules.
Mounting interface module and 45 mm I/O modules (front)
Watch video sequence (
https://support.industry.siemens.com/cs/ww/en/view/95886672
The interface modules and the 45 mm I/O modules have an attachment point on top and on
the bottom.
To mount an interface module or 45 mm I/O module, follow these steps:
1.
Drill 2 fastening holes with 4.5 mm diameter at a distance of 149.6 mm.
2.
Fasten the interface module or the 45 mm I/O module with the screws to both fastening
points (tightening torque 1.2 Nm).
The figure below shows the dimensions for fastening the IM 157-1 PN interface module and
the DQ 8x24VDC/2A 8xM12 45 mm I/O module.
Figure 4-2
Dimensions for mounting interface modules and 45 mm I/O modules
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