How to poll a Slave device with the CAS BACnet Explorer

The CAS BACnet Explorer will not operate correctly on a Salve only MSTP network. The CAS BACnet Explorer requires at lest one other BACnet MSTP device on the network that can operate as a master in order to poll at BACnet MSTP Slave device (MAC address > 127).

Add MSTP Slave Device Instructions 

  1. Physically connect the CAS BACnet Explorer to your BACnet MSTP network via a RS485 to (USB or RS232) converter. 
  2. Start the CAS BACnet Explorer
  3. Enable BACnet MSTP
    1. Click the “Settings” button on the main dialog.
    2. On the “Settings” dialog select network from the left hand menu.
    3. Check the BACnet MSTP network checkbox.
    4. Set the Comm port that is connect to your RS485 network.
    5. Set the Baud rate to match your BACnet MSTP network.
    6. Set the MAC address of the CAS BACnet Explorer.
      Note the MAC address has to be unique on the network
    7. Click OK to close the “settings” dialog
  4. In the bottom right hand conner of the main CAS BACnet Explorer dialog the icon next to MS/TP should change from red to green. this indicates that you have established a network with the other BACnet MSTP devices.
  5. Manually add the Slave BACnet MSTP device
    1. Click “Discover” button on the main dialog
    2. On the “Discover” dialog click the “Manually add Device/Object” button near the bottom.
    3. On the “Add Object” dialog fill in the settings for your slave device and click “Add”
  6. A newly created branch will be added to the network tree on CAS BACnet Explorer’s main dialog.
  7. Highlight the device from the tree and click “Discover” button.
  8. Check both “Discover device’s properties” and “Discover objects” from the dialog and click “send“. This should discover all the properties of the slave device..