Electrical installation
Wiring
EL 1xx CAN/PLC/MPI
6
28
LDCDS−EL100 EN 8.0
MPI interface
Note!
ƒ
For more information on the MPI port, please see the Siemens S7 System
Manual.
S7
EL1xx
RxD/TxD-P
RxD/TxD-P
RxD/TxD-N
RxD/TxD-N
M5V
M5V
P5V
6
6
3
3
8
8
5
5
P5V
390
390
220
220
390
390
+
+
EL100−019
Note!
Only use cables complying with the listed specifications of the PROFIBUS user
organisation.
Field
Values
Specific resistance
135 ... 165
W
/km, (f = 3 ... 20 MHz)
Capacitance per unit length
£
30 nF/km
Loop resistance
< 110
W
/km
Core diameter
> 0.64 mm
Core cross−section
> 0.34 mm
2
Cores
Twisted double, insulated and shielded
Description
Connection type
Cable type
6
1
MPI connection
Pin 1 ... 2: Not assigned
Pin 3: RxD/TxD−P (B)
Pin 4: RTS
Pin 5: M5V
Pin 6: P5V
Pin 7: Not assigned
Pin 8: RxD/TxD−N (A)
Pin 9: Not assigned
9−pole Sub−D socket
According to specification of
the Siemens company
IPC001
Cable fixing and strain relief
Realise external strain relief.
