Use Of Isochronous Mode - Siemens SIMATIC S7-1500 Function Manual

Use of isochronous mode

An isochronous system acquires measured values and process data within a fixed system
cycle, processes the signals and outputs them synchronously to the process. Isochronous
mode contributes to a high control quality and increased production accuracy. With
isochronous mode, the possible fluctuations of process reaction times are drastically
reduced. You make use of the time-assured processing to improve machine cycle times.
Even fast processes can be reliably controlled thanks to the precise time reproducibility of all
sequences. Shorter cycle times increase the processing speed and help to lower production
costs.
In principle, isochronous mode lends itself to being used whenever measured values must
be acquired synchronously, movements must be coordinated, and process responses must
be defined and carried out simultaneously. There are thus numerous applications for
isochronous mode.
Isochronous mode
Function Manual, 10/2018, A5E43884988-AA
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