A.17 Pc/Ppi Cable - Siemens SIMATIC S7-200 System Manual

S7-200 Specifications
A.17 PC/PPI Cable
Order Number: 6ES7 901-3BF20-0XA0
General Characteristics
Supply voltage
Supply current @ 24 V nominal supply
Direction change delay: RS-232 start bit edge
received to RS-485 start bit edge transmitted
Direction change delay: RS-232 stop bit edge
received to RS-485 transmission disabled
Propagation delay
Isolation
RS-485 Side Electrical Characteristics
Common mode voltage range
Receiver input impedance
Termination/bias
Receiver threshold/sensitivity
Transmitter differential output voltage
RS-232 Side Electrical Characteristics
Receiver input impedance
Receiver threshold/sensitivity
Transmitter output voltage
A-90
14.4 to 28.8 VDC
50 mA RMS max.
1.2 µS max.
1.4 character times max.
(1.4 x 11/baud) = 1.6 ms @ 9600 baud
4 µS max., RS-485 to RS-232,
1.2 µS max., RS-232 to RS-485
500 VDC
-7 V to +12 V, 1 second
3 V RMS continuous
5.4K Ω min., including termination
10K Ω to +5V on B, PROFIBUS pin 3
10K Ω to GND on A, PROFIBUS pin 8
+/- 0.2 V, 60 mV typ. hysteresis
= 100 Ω
2 V min. @ R
L
= 54 Ω
1.5 V min. @ R
L
3K Ω min., minimum
0.8 V min. low, 2.4 V max. high,
0.5 V typical hysteresis
= 3K Ω
+/- 5 V min. @ R
L
S7-200 Programmable Controller System Manual
A5E00066097-02