Max Extension

Excom Remote I/O System
& Profibus Limits/Cycle Times

Transmission Rates/Cycle Times

The PROFIBUS-DP master determines the system-specific transmission rate. Admissible baud rates range from 9.6 to 1500 kBaud.
The internal cycle time for processing of 128 binary signals is below 5 ms and for 64 analogue signals below 20 ms. These cycle times
are very fast. The response time of the entire system thus largely depends on the number of PROFIBUS-DP nodes and the processing
time of the higher level system.

The general formula is: TR = 2 x TI + 2 x TB + 2 x TPLS

TR = response time; TI = internal cycle time Ex link; TB = cycle time of higher level bus TPLS = cycle time of the process control system.