• BACnet: The Schedule Object

    The Schedule object is defined by the standard as a periodic schedule of events that may repeat within a range of dates. The schedule object is categorized into two types of days: Normal Days in a Week Exception Days The … Continue reading

  • BACnet: The Command Object

    The Command object is a very important part of the operation of a BACnet device. The Command object writes to a group of object properties through action code(s) within the Present_Value property. When this writing occurs, the Command object will … Continue reading

  • BACnet: Multi-state Objects

    Multi-state objects are very important in operational state description of a BACnet device. There are three types of Multi-state objects described in the BACnet standard: Multi-state Input Multi-state Output Multi-state Value All three object types use the four required BACnet … Continue reading

  • Modbus: Testing Modbus communication

    Q: We want to check the communication between our device and personal computer, so we need the 232 communication software. http://control.com/thread/1026236536 A: There are a few free utilities to check communications between your PC and your Modbus device. Try searching … Continue reading

  • The BACnet Object

    BACnet object(s) are concepts that allow the communication and organization of data related to inputs, outputs, software, and calculations to be performed. The BACnet Object can manifest itself in a variety of ways. These ways include: Single Points Logical Groups … Continue reading

  • CAS BACnet Explorer

    CAS BACnet Explorer is the perfect utility for exploring, testing and debugging BACnet® networks and devices. Exploring – Automatically discover all the BACnet® IP, BACnet® Ethernet and BACnet® MSTP devices, objects, and there properties on your network. The objects and … Continue reading

  • Free Tool: CAS Modbus Scanner

    CAS Modbus Scanner is a utility to retrieve coils, inputs, holding registers, and input registers from a Modbus enabled device. Values retrieved from the device can be viewed in many different formats including Binary, HEX, Uint16, Int16, Uint32, Int32, and … Continue reading

  • BACnet: Notification Class Objects

    The BACnet Notification object is a BACnet Object that is used to send event notifications within a BACnet System. When a device has a problem or a fault, such as the present value of a property rise above a predetermined … Continue reading