ProSoft Technology MVI69-PDPMV1 - Manual (Page 162)

Reference MVI69-PDPMV1 ♦ CompactLogix or MicroLogix Platform
User Manual PROFIBUS DPV1 Master
Page 162 of 225 ProSoft Technology, Inc.
July 8, 2011
6.2.5 Master/Slave Polling
Master/slave polling guarantees a cyclic, real-time based data exchange
between the station with transmission rights, the active station, and its
subordinates, the passive stations. In this case, the Master is able to pass data to
the slave and/or receive data. The services in layer 2 (field-bus data link in ISO-
OSI reference model) organize this communication.