sercos การใช้

• Communication across a Sercos III network occurs in strict cyclic intervals.
• Sercos III determines this during phase-up ( initialization ).
• Two main types of telegrams are used within the Sercos III Cycle.
• The Sercos III specification defines two possible network topologies; Ring and Line.
• There are Sercos III products currently on the market that support both modes.
• Sercos Energy provides mechanisms for unintended breaks caused by machine errors and missing parts.
• All traffic across a Sercos III network consists of Idents ( parameters ) with attributes.
• This method was first defined in Sercos I, as an essentially flat set of idents.
• Sercos III can also recover from ring breaks and  heal with no interruption in operation.
• UC frames may only enter a Sercos III network through a Sercos III-compliant port.
• UC frames may only enter a Sercos III network through a Sercos III-compliant port.
• A number of basic Sercos drivers are available as open source software from sourceforge . net.
• :With both the line or ring structure, Sercos III operates in a  circular approach.
• SDDML ( Sercos Device Description Markup Language ) describes which profiles are supported by a certain device.
• These two units are referred to as the Primary Channel and Secondary Channel in the Sercos III specification.
• For this reason, Sercos III specifies that no data be overwritten ( destroyed ) during a transmission.
• Every Sercos III-compliant node must support the passing of UC frames through its Sercos III interface.
• Every Sercos III-compliant node must support the passing of UC frames through its Sercos III interface.
• A Sercos III network will always pass UC frames, even when cyclic operation has not been initialized.
• EtherNet / IP, TC / IP and Sercos devices can be operated via a single Ethernet cable.