Dnet1chconv revision 0 Single-Channel DeviceNet rs-232 Serial Gateway User’s Manual sst, a division of Woodhead Canada Limited
DeviceNet Physical Layer Topology
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DeviceNet Physical Layer TopologyDeviceNet specifications provide for a maximum network distances for the main trunk line and drop lines, depending upon the baud rate used on the network. Table 4‑9 Maximum Network Cable Lengths
Network TerminationA DeviceNet system must be terminated at each end of the trunk line. The host controller and the last DNET1CHCONV or other DeviceNet device on the network must always be terminated to eliminate reflections, even if only two nodes are present. The DeviceNet specifications for the terminating resistor are: 121 ohm 1% metal film 1/4 Watt An appropriate terminating resistor, Brad Harrison part number such as Brad Harrison DND100/150 for m12 style of connectors and DN100/150 for MINI style of connectors. Important: Per the DeviceNet spec -- do not terminate devices on drop lines. NOTE: If you are having DeviceNet communications errors, check your network terminations. With power removed from the network, measure the dc resistance with an ohmmeter. It should measure 60Ω. If it measures 121Ω, add another 121Ω terminating resistor. If it measures ~40Ω, then you have 3 terminators and must remove one. If it measures ~30Ω you have 4 terminators and must remove two. DeviceNet Connection WiringThe DNET1CHCONV uses a 5-pin standard micro-style DeviceNet connector with male pins. 
Figure 4‑4 DeviceNet Connector – micro, male Table 4‑10 DeviceNet Connector Pin-out
SOFTWARE Configuration and Set-UpThe DNET1CHCONV is an easy device to set up and configure. Using features like the EDS sheets for configuration can expedite the process if you use a network configuration tool that supports them. They provide a graphical interface to the device’s parameters and allow the addition of helpful text descriptions in setting up your device. The current EDS file is available on our websites, www.mysst.com or www.connector.com. If your configuration tool does not support the EDS device profiles, the set up of a DeviceNet device requires a little more understanding of DeviceNet and its operation. This section is designed to fully describe the features of the DNET1CHCONV and to help you set them up. . The Parameters are defined in this section. Directory: images images -> Pelan pentaksiran kursus images -> Military callsign list as of dec 2010 images -> For Date: 02/01/2013 Friday Call Number Time Call Reason Action 13-768 0008 motor vehicle stop warning Issued images -> New embedded S images -> Creating Buy-In – Building Relationships images -> Deadline: Saturday, March 12th, 2016 images -> News items from Raising Our Voices images -> Last year four of the best Afrikaans Christian singers joined forces to tour Down Under with the production ‘Manne wat Glo’ images -> World-renowned vocal ensemble sweet honey in the rock images -> Peoples Voice Café History Download 0.71 Mb. Share with your friends:
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