Functions/operations using PROFIBUS PA
11.3 Cyclic data transfer
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
193
Figure 11-3 Example of a small PROFIBUS DP/PA system
①
PC or PG (master class 2)
⑦
PA devices
②
Power supply
⑧
DP/PA coupler/link
③
PROFIBUS DP
⑨
CPU SIMATIC S7 (master class 1)
④
PROFIBUS PA
⑤
Splitter
⑥
Bus terminator
⑩
MPI cable (required for commissioning
and monitoring)
A small STEP 7 program that establishes cyclic exchange with the positioner using
PROFIBUS PA (positioner) is given below.
Содержание SIPART PS2 PA 6DR55 Series
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