Siemens SPC3 Dokumentacja Pobierz pdf (Strona 87)

DPC31 HW

SchnittStellenCenter

DPC31 HW Description

Version V1.0 Page 85

The PROFIBUS interface is implemented as 9-pole SUB D connector with the following pin assignment:

Pin 1 - free

Pin 2 - free

Pin 3 - B line

Pin 4 - Request to Send (RTS)

Pin 5 - Ground 5V

(M5)

Pin 6 - Potential 5V

(potential free P5)

Pin 7 - free

Pin 8 - A line

Pin 9 - free

The line shield is to be connected to the connector housing.

The free pins are used optionally in the EN 50170 Vol.2 and should correspond to this description if the user

uses them.

Attention:

The designations

and

for the lines at the connector correspond to the names in the RS485 standard and

not to the pin name of driver ICs.

The line length from the driver to the connector is to be kept as short as possible.

If the higher baudrates of 3 to 12 MBaud are used, suitable connectors are to be used. These connectors

compensate for line influences regarding all possible line combinations.

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 93 94

Brak uwag

Siemens SPC3 Dokumentacja Strona 87