Troubleshooting

Disio Cloud

If no power is present, check 24VDC power with a Multimeter. Cycle power to the device. If this does restore power, check the power that is feeding the hub for your problem.

BACnet MS/TP is based on a RS-485 network. It must be wired in a daisy chain configuration. A daisy chain means that there is only one main cable, and every network device is connected directly along its path.

DO NOT use Star, Bus, “T”, or any other type of network configuration. Any of these other network configurations will result in an unreliable network and make troubleshooting almost impossible.

Correct polarity is imperative on MS/TP wiring. Always ensure that the positive terminal on a device has the same color wire connected to it throughout the network, same for the negative terminal. Eg: 4 wire conductor with orange, orange complement, and brown and brown complement – orange to negative terminal, orange complement to positive terminal, brown and brown complement to the NETCOM terminal. Keep this consistency throughout the network.

Disio Display

If no power is present, check 24VAC power with a Multimeter. Cycle power to the device. If this does restore power, check the power that is feeding the controller for your problem.

BACnet MS/TP is based on a RS-485 network. It must be wired in a daisy chain configuration. A daisy chain means that there is only one main cable, and every network device is connected directly along its path.

DO NOT use Star, Bus, “T”, or any other type of network configuration. Any of these other network configurations will result in an unreliable network and make troubleshooting almost impossible.

Correct polarity is imperative on MS/TP wiring. Always ensure that the positive terminal on a device has the same color wire connected to it throughout the network, same for the negative terminal. Eg: 4 wire conductor with orange, orange complement, and brown and brown complement – orange to negative terminal, orange complement to positive terminal, brown and brown complement to the NETCOM terminal. Keep this consistency throughout the network.

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