Siemens SIMATIC NET PROFIBUS manual Example of a Configuration with DP/AS-Interface Link

Topologies of SIMATIC NET PROFIBUS Networks

Uses

The DP/AS-interface link 20 implements a small, cost-effective link between PROFIBUS and AS-interface. The DP/AS-interface link 20 requires no additional power supply, the power is supplied on the AS-interface cable. The AS-interface segment can be started up without PROFIBUS-DP being in operation.

The DP/AS-interface link 20 is a PROFIBUS-DP slave (complying with EN 50170) and AS-interface master in one unit and provides a simple link between PROFIBUS-DP and the AS-interface. The DP/AS-interface link 20 allows system attachment of the following:

SPROFIBUS-DP master, for example CP 342-5 for S7-300, CP 443-5 extended for S7-400, CP 5431 FMS/DP or IM 308C for SIMATIC S5, CP 5412 (A2) for PC or CP 5611/CP 5511 for PCs with DP-SOFTNET software.

SOther systems with DP master functionality

Field level networking with PROFIBUS-DP

							ADR
							BF
							DIA
	29	24	19	14	9	4	SF
	28	23	18	13	8	3	APF
	27	22	17	12	7	2	CER
31	26	21	16	11	6	1	AUP
30	25	20	15	10	5	0	CM

DP/AS-Interface Link 20

X 2

34

6GK71415 2AA0

DP/AS-Interface Link 20
Passive modules	Active modules
(without slave ASIC)	(with slave ASIC)

AS-i power supply

Actuator/sensor with slave ASIC

AS-i	Branch
cable

Figure 2-23 Example of a Configuration with DP/AS-Interface Link 20

2-34	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000