Replacing The Interface Submodule - Siemens SIMATIC FM 456-2 Installation, Hardware, And Startup

Replacing Modules
3.1

Replacing the Interface Submodule

Removing the Interface Submodule
You can replace the interface submodule with another without removing the
associated application function module or expansion module. To do this, proceed
as described below:
1. Switch the central module and all function modules in your S7/M7-400 system
to STOP with the key switch.
2. Switch off the load supply voltage to the modules.
3. Set the standby switch on the power supply module to the
voltage 0 volts).
4. Loosen the screws retaining the Sub-D connectors and pull out all plugs.
5. Loosen the two captive slotted screws fixing the front plate of the interface
submodule to the left hand frame of the module card slot sufficiently to pull
these out about 6 mm (1/4 inch).
6. Pull the interface submodule carefully out of the guide of the card slot (see
Figure 3-1).
Caution
!
There is the risk of injury to persons and damage to property.
As the surface temperature of the modules can reach up to 70 C, there is the risk
of burning. Therefore always grasp the front plate of the interface module at the
long sides.
Interface modules contain electrostatically sensitive devices which can be
damaged when being touched.
Observe the ESD rules when fitting the interface modules.
3-2
FM 456-2 Application Function Module Installation, Hardware, and Startup
position (output
C79000-G7076-C458-01