I only configure DC on the slaves that are actually required to be
synchronized.
Otherwise it seems correct what you are doing...
Am 2016-02-29 um 14:45 schrieb Paul Mulligan:
Hi,
Just a question or two about distributed clocks.
I have a system with an EL1008 digital input module, EL3001 analogue
input module, two EL7031 stepper motor driver modules and two EL2008
digital output modules in that order. I am using the EK1100 bus coupler
terminal as the first module.
Do I need to call ecrt_slave_config_dc() for all of these modules before
activating the master, or just the first module on the bus? My
understanding from reading about distributed clocks is that the first
module on the bus with DC capability should be used as the reference clock.
From looking at the example "dc_user" supplied in the master download,
it calls ecrt_slave_config_dc() only for the IDS_COUNTER module.
In the cyclic_task(), the functions ecrt_master_application_time(),
ecrt_master_sync_reference_clock(), ecrt_master_sync_slave_clocks() are
then called in that order. I notice ecrt_master_reference_clock_time()
is not used at all here.
Is this all that is required to control the distributed clocks ? Thank
you in advance.
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