Siemens SIMATIC VS120 Operating Instructions Manual page 129

This applies only to CPUs that transfer consistent user data using the process image. If, on
the other hand, these addresses are not in the process image of OB1, you will need to
access the communication area of the SIMATIC VS120 using SFCs 14 "DPRD_DAT" and
15 "DPWR_DAT" to ensure consistency.
Notice
The consistent user data transfer per process image is supported by the following S7 CPUs:
• from the CPU 318 and S7-400 CPUs as of firmware version V3.0.0
• from all S7-300 CPUs with MMC
for all other S7-300 and S7-400 CPUs, installation of SFCs 14 "DPRD_DAT" and
15 "DPWR_DAT" is absolutely necessary.
Transmission rate of PROFIBUS DP
The SIMATIC VS120 Vision Sensor automatically detects the transmission rates of
PROFIBUS DP. Even if the transmission rate has changed, this is detected automatically.
The following values possible:
• 9.6 Kbps
• 19.2 Kbps
• 45.45 Kbps
• 93.75 Kbps
• 187.5 Kbps
• 500 Kbps
• 1.5 Mbps
• 3 Mbps
• 6 Mbps
• 12 Mbps
PROFIBUS DP address of the SIMATIC VS120 processing unit
The PROFIBUS DP address of the SIMATIC VS120 processing unit is set in the menu
Settings > Ports > DP Addr. of the processing unit. Possible values are 1 to 125.
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
Process interfacing over an automation system (PLC, PC)
10.1 Integrating the PROFIBUS DP slave SIMATIC VS120 in HW Config
10-3