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Installation and commissioning of the modems and routers
5.9 Installing and putting a SINAUT MD2, MD3, MD4 modem into operation
Note
Any TIM with an RS-232 interface can be used, in other words, the two TIM 3V-IE variants,
the TIM 4R-IE and the TIM 4.
5.9
Installing and putting a SINAUT MD2, MD3, MD4 modem into
operation
5.9.1
Installation
Introduction
The MD2, MD3 and MD4 modems can be installed on a SIMATIC S7-300 rail or using the
6NH7760-0AA adapter (must be ordered separately) on a 35 mm standard rail.
The modem can be operated both in a horizontal and in a vertical installation.
Note
Before the modem is installed on the S7-300 or standard rail, all the DIL switches of the
modem must be set correctly for operation. These switches are practically inaccessible when
the module is installed.
5.9.2
Installation on an S7-300 rail
Note
If you want to install the modem along with other S7-300 modules, remember that the
modem does not have an S7-300 backplane bus. There must therefore be no S7-300
module that communicates with the S7 CPU over the backplane bus (SM, FM or CP)
installed to the right of the modem.
Order of installation
To install the modem on an S7-300 rail, follow the steps below in the order shown:
1. Turn off the power supply to which the modem will be connected.
2. Place the modem on the rail and push it in towards the bottom.
3. Screw the modem tight.
4. Connect the modem to the power supply.
230
SINAUT ST7 station control system
System Manual, 09/2016, C79000-G8976-C178-10
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