5.5 Installing on an S7-300 mounting rail
R
equirement
The SIM card is inserted. You can nd more information on this in the section "SIM card
(Page59)".
Installation
Follow the steps below to mount the device on an S7-300 mounting rail:
1
. Loosen the knurled screw with your hand or a screwdriver.
2. Place the rst housing guide of the device on the top edge of the mounting rail.
3. Using a screwdriver, pull the securing bar down as far as it will go.
4. With the securing bar pulled, swivel the device to the mounting rail and press it against the
mounting rail until the spring-mounted securing bar locks into place.
5. Tighten the knurled screw to secure the device additionally (torque 0.5 Nm).
6. Connect the device; see section "Connecting (Page45)".
Installation and removal
5.5Installing on an S7-300 mounting rail
SCALANCE MUM853-1
Operating Instructions, 03/2023, C79000-G8976-C650-05 41
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