Commissioning and configuration
EP1518-0002
31
Version: 2.4
NOTE
Risk of device damage
The mentioned notes and information should be used advisedly.
The EtherCAT master automatically allocates SYNC0 and SYNC1 settings that support reliable and timely
process data acquisition.
User intervention at this point may lead to undesired behavior.
If these settings are changed in the System Manager, no plausibility checks are carried out on the software
side. Correct function cannot be guaranteed for all conceivable setting options.
Default setting
The cyclic reading of the inputs is triggered by the SYNC0 pulse (interrupt) of the DC in the EtherCAT Box.
The EtherCAT master sets the
Sync Unit Cycle
time value to the PLC cycle time and therefore the EtherCAT
cycle time as standard. See Fig.
Advanced Distributed Clock (DC) settings
: 4000 µs = 4 ms, as TwinCAT is
in configuration mode.
DC settings
Fig. 11: Advanced settings for Distributed Clocks (DC)
SYNC0
Sync Unit cycle: a multiple of the bus cycle time. The counter value is periodically determined at this interval
(in µs).
User defined
Any number up to 2
32
ns, or about 4.3 seconds. Use of decimal points is allowed.
