FANUC A06B-6096-H301放大器
下圖顯示了連接到冗余AC 800M控制器的冗余PROFIBUS。PROFIBUS基本基本功能DP-V0循環(huán)數(shù)據(jù)通信DPM1(DP主設(shè)備1級)與其分配的從設(shè)備之間的數(shù)據(jù)通信由DPM1按照定義的重復(fù)序列自動處理。對于每次用戶數(shù)據(jù)傳輸,主設(shè)備可以向從設(shè)備寫入多達(dá)244字節(jié)的輸出數(shù)據(jù),并從從設(shè)備讀取多達(dá)244字節(jié)輸入數(shù)據(jù)。數(shù)據(jù)在一個過程中同步讀取和寫入。在這種情況下,通過Control Builder M中的HW配置完成從設(shè)備到DPM1(CI854/CI854A)的分配。DPM1和從設(shè)備之間的數(shù)據(jù)通信分為三個階段:參數(shù)化、配置和數(shù)據(jù)傳輸。在主設(shè)備在數(shù)據(jù)傳輸階段包括DP從設(shè)備之前,在參數(shù)化和配置階段進(jìn)行檢查,以確保配置的設(shè)置點(diǎn)配置與實際設(shè)備配置匹配
The following figure shows the redundant PROFIBUS connected to the redundant
AC 800M controller.PROFIBUS Basics
Basic Functions DP-V0
Cyclic Data Communication
The data communication between the DPM1 (DP Master Class 1) and its assigned
slaves is automatically handled by the DPM1 in a defined, recurring sequence. With
each user data transfer, the master can write up to 244 bytes of output data to the
slave and read up to 244 bytes of input data from the slave. The Data is read and
written synchronously in one procedure.The assignment of the slaves to the DPM1, CI854/CI854A in this case, is done via
the HW configuration in Control Builder M.The data communication between the DPM1 and the slaves is divided into three
phases: parameterization, configuration and data transfer. Before the master
includes a DP slave in the data transfer phase, a check is run during the
parameterization and configuration phase to ensure that the configured setpoint
configuration matches the actual device configuration