Table:
text: Fieldbus
Features
Features
Fieldbus Bus_power Cabling_redundancy Synchronisation Sub_millisecond_cycle
AFDX No Yes No Unknown
AS-Interface Yes No No No
CANopen No No Yes No
CompoNet Yes No No Yes
ControlNet No Yes No No
CC-Link No No No No
DeviceNet Yes No No No
EtherCAT No Yes Yes Yes
Ethernet Powerlink No Optional Yes Yes
EtherNet/IP No Optional Yes No
Interbus No No No No
LonWorks No No No No
Modbus No No No No
PROFIBUS DP No Optional Yes No
PROFIBUS PA Yes No No No
PROFINET IO No Optional No No
PROFINET IRT No Optional Yes Yes
SERCOS III No Yes Yes Yes

Question: How high is the bus performance for the Controlnet fieldbus among the fieldbuses?

Question: What is synchronization for the Controlnet fieldbus?