Technical data
85
SIPROTEC PROFIBUS-DP - Communication profile
C53000-L1840-B001-03
Max. number of
modules at the bus
32
For exclusive utilization of PSE modules at the bus.
This value could be smaller depending on the used PROFIBUS-DP master and further
modules at the bus.
If more than 32 devices are needed, RS485 repeaters (e.g. 6ES7 972-0AA00-0XA0)
have to be used.
Bus connection
OLM Recommended OLM for external PROFIBUS - fibre-optic transformation:
SINEC L2 OLM V2
• OLM/S3 (6GK1 502-3AB10) with two RS485 and one fibre-optical channels,
• OLM/S4 (6GK1 502-4AB10) with two RS485 and two fibre-optical channels.
SIMATIC NET OLM V3
• OLM/G11 (6GK1 502-2CB10) with one RS485 and one fibre-optical channels,
• OLM/G12 (6GK1 502-3CB10) with one RS485 and two fibre-optical channels.
Pin Signal Meaning
1 Shield Shield / Operational ground
2--
3 RxD/TxD-P (B) Reception data / Transmission data - positive
4 RTS/CNTR-P Directions control (TTL level)
5 GND1 Data transmission level (ground towards VCC1)
6 VCC1 Supply voltage for terminating resistors (+5V DC, max. 100 mA)
7--
8 RxD/TxD-N (A) Reception data / Transmission data - negative
9--
Table 5-1 Assignment of the bus connection at the device (D-SUB outlet)
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