Installing On The S7-300 Standard Rail - Siemens SCALANCE M812 Operating Instructions Manual

Installation

3.4 Installing on the S7-300 standard rail

3.4 Installing on the S7-300 standard rail
Installation
1. Place the second housing guide of the device on the top edge of the standard rail
2. Press the device down against the standard rail until the spring catch locks in place
3. Connect the power supply, refer to the section "Power supply (Page 42)".
4. Fit the connectors for the digital input and digital output, refer to the section "Digital
input/output (Page 45)".
5. Connect the device to the DSL connection, refer to the section "DSL interface (Page 48)".
6. Connect the device to the local network, refer to the section "Ethernet port (Page 49)".
7. Connect the terminal with as short a cable as possible ≤ 150 mm and a large cross-
sectional area ≥ 1.5 mm² to the functional ground of the system, see section "Terminals
(Page 24)" and section "Grounding (Page 44)".
Dismantling
1. Disconnect all connected cables.
2. Using a screwdriver, pull down the catch on the rear of the device.
3. Remove the device from the standard rail.
34
Operating Instructions, 08/2018, C79000-G8976-C331-06
①
.
②
.
SCALANCE M812, M816