WAGO 750-306 Technical Description
Also see for DeviceNet 750-306: Manual
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DeviceNet ï 107Network ArchitectureWAGO-I/O-SYSTEM 750DeviceNet5.2 Network Architecture5.2.1 Transmission Media5.2.1.1 Type of CableA bus medium forms the basis for the physical realization of a network usingDeviceNet.According to the line specification, a double 2-conductor twisted pair cable(twisted pair, screened cable) is recommended to be used as a medium.It consists of two screened twisted pair cables with a wire in the middle of thecable. Further screening extended at the outside.The blue and the white twisted pair cable is used for signal transmission, theblack and red one for the supply voltage.5.2.1.2 Cable TypesThe DeviceNet bus is configured using a remote bus cable as the trunk lineand several drop lines.For this purpose, the DeviceNet specification distinguishes between 2 cabletypes:• Thick CableFor the trunk line of maximum 8 A or for networks extending over morethan 100 m.The trunk line topology is linear, i.e. the remote bus cables are not furtherbranched. On each end of the remote bus cable, terminating resistors arerequired.• Thin CableFor drop lines with maximum 3 A or for networks extending less than100 m.One or more nodes can be connected to the drop lines, in other words,branching is permitted here. The length of the individual drop lines ismeasured from the branching point of the node and can be up to 6 m. Theentire length of the drop line depends on the Baud rate.NoteIf possible, route the data line separately from all high current carrying ca-bles.Further informationFor a detailed specification regarding the cable types, please refer to theINTERNET under: http://www.odva.org. |
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