Delta PROFIBUS-DP Module for VFD Series Drives PD-01 Manuel d'utilisateur télécharger pdf (Page 23)

PD-01 PROFIBUS-DP Module

T1 depends on the actual transmission speed and the type of master in use.

T2 depends on the internal timer of PD-01. Data is transmitted to VFD series Drives per

70ms triggered by a timer. User cannot change the time-out interval.

T3 depends on the Modbus communication between PD-01 and VFD series Drives.

So the update time is,

Max update time = T1 + T2 (70ms) + T3

In fact, the actual update time is less than the Max update time. If the timer time-out

when the data arrive PD-01, PD-01 will save the data to data buffer, and transmit the data

to VFD series Drives immediately.

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Delta PROFIBUS-DP Module for VFD Series Drives PD-01 Manuel d'utilisateur Page 23