Detailed descriptions 17.1 Motherboard
PROFIBUS/MPI interface, X400
The PROFIBUS/MPI socket has the following pinout:
PROFIBUS/MPI interface 1)
PinNo. | Abbreviation | Meaning | Input/Output |
1 | – | Not assigned | – |
2 | – | Not assigned | – |
3 | LTG_B | Signal line B of MPI module | Input/output |
4 | RTS_AS | RTSAS, control signal for received data | Input |
|
| stream. The signal is "1" active when the |
|
|
| directly connected PLC is sending. |
|
5 | M5EXT | M5EXT return line (GND) of the 5 V power | Output |
|
| supply. The current load caused by an external |
|
|
| consumer connected between P5EXT and |
|
|
| M5EXT must not exceed the maximum of 90 |
|
|
| mA. |
|
6 | P5 EXT | P5EXT power supply (+5 V) of the 5 V power | Output |
|
| supply. The current load caused by an external |
|
|
| consumer connected between P5EXT and |
|
|
| M5EXT must not exceed the maximum of 90 |
|
|
| mA. |
|
7 | – | Not assigned | – |
8 | LTG_A | Signal line A of MPI module | Input/output |
9 | RTS_PG | RTS output signal of the MPI module. The | Output |
|
| control signal is "1" when the PG is sending. |
|
Shieldin |
| on connector casing |
|
g |
|
|
|
1)Optional product feature
SIMATIC Panel PC 877 | |
Operating instructions, Release 07/2006, |
