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Frequently Asked Questions

Number of FAQs related to Dataloggers and Data Acquisition Systems: 19

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  1. Dataloggers, which may also be referred to as Measurement and Control Units (Systems) or Microloggers, are the heart of a data acquisition system. They measure sensors at a specific scan rate, process data, store the data, and initiate telecommunication. Our dataloggers also have control capabilities allowing them to respond to specific site conditions by opening flood gates, turning fans off/on, etc.

  2. Campbell Scientific dataloggers do not directly support LonWorks, but an industrial protocol converter can be used to add a datalogger to a new or existing LonWorks network. The protocol converter sits between the datalogger and the network, and it converts LonWorks requests to a protocol supported by the datalogger, such as Modbus, DNP3, SNMP, or others.

  3. Campbell Scientific dataloggers do not directly support BACnet, but an industrial protocol converter can be used to add a datalogger to a new or existing BACnet network. The protocol converter sits between the datalogger and the network, and it converts BACnet requests to a protocol supported by the datalogger, such as Modbus, DNP3, SNMP, or others.

    For more information about BACnet, see the “BACnet to Modbus/Modbus to BACnet Protocol Conversion” application note.

  4. The CR1000, CR800, CR850, and CR3000 can accept PakBus connections from multiple terminals simultaneously, provided that all of the connecting nodes have unique PakBus addresses.

  5. Yes. The datalogger can control power to external devices under program control. For more information, see the “Decisions, Decisions, Decisions…” article.

    To turn a generator on and off, a solid state relay with a load capacity that matches or exceeds the power of the generator is needed. The relay is controlled by one of the control ports on the datalogger.

  6. Campbell Scientific dataloggers do not directly support Profibus, but an industrial protocol converter can be used to add a datalogger to a new or existing Profibus network. The protocol converter sits between the datalogger and the network, and it converts Profibus requests to a protocol supported by the datalogger, such as Modbus, DNP3, SNMP, or others.

  7. The memory in the data cache is considered ring memory. This means that after the data cache fills up, new records begin overwriting the oldest records.

  8. Yes, but there is the potential for explosive hydrogen gas from a rechargeable battery to build up inside the airtight, waterproof enclosure. Care should be exercised in choosing a power supply for applications where the enclosure must be waterproof. Contact Campbell Scientific’s technical support for more information.

  9. Yes. We have developed programs for controlling devices and collecting data remotely. Program examples and datalogger wiring are provided in the 10164-L instruction manual. Contact an application engineer at Campbell Scientific for more information.