Siemens SIMATIC S7-1200 Manual page 330

Technical specifications
A.9 Communication interfaces
Technical specifications
Power supply / external
minimum
•
maximum
•
Current consumption (typical)
from 24 V DC
•
from the S7-1200 backplane bus
•
Effective power loss (typical)
from 24 V DC
•
from the S7-1200 backplane bus
•
Power supply 24 VDC / external
Min. cable cross section
•
Max. cable cross section
•
Tightening torque of the screw terminals
•
Dimensions and weights
Width
•
Height
•
Depth
•
Weight
Net weight
•
Weight including packaging
•
* The current load of an external consumer connected between VP (pin 6) and DGND (pin 5) must not exceed a maximum
)
of 15 mA (short-circuit proof) for bus termination.
PROFIBUS interface
Table A- 62
330
Pinout of the D-sub socket
Pin Description
1 - not used -
2 - not used -
3 RxD/TxD-P: Data line B
4 CNTR-P: RTS
5 DGND: Ground for data signals
and VP
24 V
19.2 V
•
28.8 V
•
100 mA
•
0 mA
•
2.4 W
•
0 W
•
min.: 0.14 mm (AWG 25)
• 2
max.: 1.5 mm (AWG 15)
• 2
0.45 Nm (4 lb-in)
•
30 mm
•
100 mm
•
75 mm
•
134 g
•
171 g
•
Pin
6 VP: Power supply +5 V only for bus
terminating resistors;
not for supplying external devices
7 - not used -
8 RxD/TxD-N: Data line A
9 - not used -
Housing Ground connector
Description
Easy Book
Manual, 03/2014, A5E02486774-AF