Physical mounting
Mount the controller in a location that allows clearance for wiring, servicing, and module removal.
Figure 3. Mounting dimensions of controller and option modules
Horizontal mounting (as shown) is required to achieve maximum heat dissipation and meet the operating temperature upper limit requirement. Any other mounting orientation reduces this upper limit.
Mounting on a 35mm wide DIN rail is recommended. The controller’s unit base has a molded DIN rail slot and locking clip, as do option modules. DIN rail mounting ensures alignment of the connectors between each device.
Up to four (4) option modules are supported. Refer to “Option module and capacity considerations” for details.
The drawing above shows the dimensions of a unit with option modules.