Siemens PC 670 Manuel d'utilisateur télécharger pdf (Page 148)

Hardware Information

Release 04/02

7-16

Panel PC 670 Computing Unit, Equipment Manual

MPI/DP interface

The MPI/DP port on the computing unit is assigned as follows:

Figure 7-7 PROFIBUS/MPI Socket Connector

No.

Short Name Meaning Input/Output

1 - Not assigned -

2 - Not assigned -

3 LTG_B Signal lead B of MPI module Input/Output

4 RTS_AS RTSAS, control signal for

received data stream. The signal

is ’1’ active when the directly

connected AS is sending.

Input

5 M5EXT M5EXT return line (GND) of the 5

V power supply. The current load

caused by an external user

connected between P5EXT and

M5EXT must not exceed 90 mA.

Output

6 P5 EXT P5EXT supply (+5 V) of 5 V

supply. The current load caused

by an external user connected

between P5EXT and M5EXT

must not exceed 90 mA.

Output

7 - Not assigned -

8 LTG_A Signal lead A of MPI module Input/Output

9 RTS_PG RTS output signal of the MPI

module. The signal is ’1’ when

the PG is sending.

Output

Shield On connector casing

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Siemens PC 670 Manuel d'utilisateur Page 148