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Process interfacing over an automation system (PLC, PC)
10.1 Integrating the PROFIBUS DP slave SIMATIC VS120 in HW Config
Configuration example
Figure 10-1
Integrating the PROFIBUS DP device SIMATIC VS120 in HW Config
In the configuration example above, the control byte of the SIMATIC VS120 was set to
output address 0 and the status byte of the SIMATIC VS120 was set to input address 0 of
the CPU (DP master, slot 1). If these addresses are in the process image of OB1 (process
image partition "OB1 PI"), you can work here in OB1 with process image access (for
example "A I0.6" or "S Q0.1"). If this is not the case, you must work with direct I/O access
(for example "L PIB 0").
In the configuration example above, the start of the 16 word long consistent communication
area of the SIMATIC VS120 Vision Sensor was set to input address 1 and output address 1
(slot 2).
If these addresses are in the process image of OB1 (process image partition "OB1-PI"), you
can work in OB1 with process image access (for example "L IW 2", "T QB 1") without
violating the consistency.
10-2
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
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