Beckhoff EL47 Series Documentation page 157

Fig. 196: Process Data tab, adaptation of process data in SM1
Select SM0, then SM1 (Fig. Process data tab, adjusting the process data in SM0 and SM1), and in the field
below (PDO assignment) select the number of process data corresponding to the oversampling factor, in this
example 80 .
dec
In the PDO list on the right compare the PDO index with the last PDO to be activated under PDO
Assignment. In this case all PDOs greater than 0x164F (SM0) or 0x174F (SM1) have to be deactivated.
Matching of oversampling factor/process data
If the number of process data does not match the oversampling factor n, the terminal will reach the
OP state, but no process data will be created.
Sample:
Sample for setting a Shift Time:
Under SYNC0 Shift Time User-defined (Fig. DC tab, activation „Advanced Settings...", „Distributed Clocks"),
enter a time as required. Any value that may have been created automatically by the EtherCAT master can
be overwritten, although it should be taken into account in the calculation.
Sample: A value of "-5" is preset. An additional shift of +10 µs is required. -5 + 10 = +5 is entered as new
value.
All time-based/distributed clock-based interrupts (SYNC0/SYNC1) are now offset by this amount relative to
other EtherCAT slaves.
EL47xx Version: 2.7
Commissioning
157