Results

ScopeView recording

After the activation of the external synchronization on the part of the slave system
(TRUE => bEnableExtSync), the deviation between the internal and external time values (nDcOffset), the synchronization window nSyncWindow and the actual synchronization is recorded with ScopeView (bSynchronized):

Oscilloscope recording

The upper part of the following diagram shows the time offset between the two signals. The lower part shows an enlarged section relating to channel 1, to illustrate the remaining jitter of the sample slave system. In this example a clock synchronization of < ±1.5 µs is achieved.

• Channel 1: Internal slave PLC clock pulse
• Channel 2: External master PLC clock pulse