Siemens DTU3005-B Manual del operador descargar pdf (Pagina 16)

4 Creating Project Files — Profibus to Devices

12 Siemens Energy & Automation, Inc.

4.2 Profibus Setup—Port 1

Select Port 1 (Profibus) from the Edit menu. The

Port 1 Profibus configuration screen is displayed

(see Figure 4.2).

Figure 4.2 Profibus Port 1 Configuration Screen

Profibus Address of DTU3005P

Enter the Profibus device address for the DTU3005P.

This address identifies the DTU3005P uniquely in

the Profibus network. The acceptable address range

is 1 to 254.

Send Device Data Only by Command

If the Send Device Data Only by Command check

box is not selected, the Profibus Delay Time option

applies. In this mode, the DTU3005P presents the

device information to the Profibus-DP master going

through the list of connected devices. The

DTU3005P switches to the next device based on

the delay time specified.

If the check box is selected, the data presented to

the Profibus-DP master is based on the request

(command) that the master is sending. The Profibus

Delay Time option does not apply in this mode.

Profibus Delay Time

The Profibus Delay Time is the amount of time that

the DTU3005P presents each device’s data through

the list of connected devices.

Communicating Wiring Port 1

The communication port on the DTU3005P is RS-

485 compatible on a nine-pin subminiature D con-

nector in accordance with the Profibus standard.

The following diagram shows the connector that

provides the physical connection for the communia-

tion port (see Figure 4.3).

Figure 4.3 DB-9 / RS-485 Connector (two-wire)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 119 120

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Siemens DTU3005-B Manual del operador Pagina 16