In the left-hand tree, expand Profibus Master. The standard diagnostics six bytes that every slave device is required to report contain information that is generally related to startup problems. However, once you have learned how to apply any of these tools, it is generally quite easy to transfer this knowledge to another tool because all PROFIBUS configuration tools must share certain common functionality. Through our standard NI technical support program, we can help you: This often slips in when you are using a lot of fiber-optic cable and there is only a short length of copper cable in the cabinets.

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Termination prevents reflections that can disturb the data communication. It does not communicate what the diagnostic is — just that a particular module has a problem. In the Add Targets and Devices dialog window, select Existing target or device.

A device proofibus report diagnostic information in four different formats: Because a request from a master to a slave device is heard by all devices attached to the bus, some mechanism must exist for a slave device to recognize that a message is designated for it and then respond to the sender. Learn more about our privacy policy.

Select the slave icon, and then click and drag the appropriate memory configuration to slot 0 in the configuration project on the lower right. When you are finished click Save to save your changes. The higher the baud rate and the longer the cable, the more important termination becomes. A few devices require that their addresses be set across the bus using a configuration tool.


CompactRIO PROFIBUS Master/Slave Module – National Instruments

The installation process varies for different configuration tools, but it is extremely profinus. This step downloads the network configuration to the master. This means that once a logic block is constructed to decode this type of diagnostic information, the decode logic works for any device from any vendor that reports module-related diagnostics.

Our three- or five-year service programs for hardware and systems provide the coverage you need while ensuring lowest total cost of ownership over the life of your system:.

After download, the master has the information necessary to start up all the devices in its configuration. This site uses cookies to offer you a better browsing experience. Consult on how to use NI products Overcome development challenges Quickly resolve issues pre- or post-deployment To access NI technical support services for your hardware, visit ni.

Are the addresses correctly set? You then save this bus configuration and generate the configuration proffibus.

Do not exceed 32 devices per segment including repeaters, OLMs, and couplers. The addressed slave immediately responds with its input data.

PROFIBUS Overview – National Instruments

When dropping the Express VI to the block diagram, a dialog opens to configure the slave device. Back to Top 2. If the remote address is not listed, click the Create New System button to enter it manually.


For specifying the address, most devices have either rotary switches decimal or hexadecimal or DIP switches. The master must now determine if the devices at the assigned addresses contained within proofibus configuration database are physically on the bus and initialize them for “operational” or “data exchange” mode.

The master itself can have a limit. When the transmission speed is 1. Double-click on the slave icon to configure the slave address and other properties.

View Pricing and Purchasing Information. The Configuration tab shows the supported slave modules.

PROFIBUS Interface Modules for NI CompactRIO

If a slave device fails and must be replaced, the master recognizes that a replacement device of the same type and with the same PROFIBUS address has been attached to the bus. Included graphical networking Configurator software Supported services: Double-click on the master icon to configure the master address, baud rate, profile, and other properties. Back profiibus Top 5. This often slips in when you are using a lot of fiber-optic cable and there is only a short length of copper cable in the cabinets.

This format gives the head module the capability to report that a particular plug-in module has a diagnostic.