Siemens SIMATIC NET SINAUT MD720-3 시스템 매뉴얼 - 페이지 20

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Connecting the device and switching on the device

Connectors for current supply

The screw terminals on the top of the device are for connecting the current supply:

24 V DC voltage (nominal), I

Technical Data.)

Both screw terminals on the left (24V) are internally connected, see figure 3-1.

Both screw terminals on the right (0V) are internally connected.

Switching on

The devices switch on as soon as the operating voltage is supplied.

Functions of the LEDs

The SINAUT MD720-3 has three LEDs, which are used to indicate the device

status. The function of the LEDs is different in terminal and OPC Mode. You will

find the explanation of the function

● in Terminal Mode in chapter 4.3 Functions of the LEDs in Terminal Mode and

● in OPC Mode in chapter 5.3 Functions of the LEDs in OPC Mode.

Serial interface X1

For data transmission:

Connect the application (e.g. machine, vending machine, sensor, computer) with

the interface X1 of the SINAUT MD720-3. To connect, use a RS-232 cable.

If the application has a different interface, e.g. CAN, PPI cable or a different

industry bus, a commercially available interface converter can be connected

between it and the SINAUT MD720-3.

For configuration and service:

Connect the service PC via its serial interface (COM port). To connect, use a RS-

232 cable.

165mA at 24V. (Please also refer to chapter 7

typ.

SINAUT MD720-3

C79000-G8976-C211