Micro control systems MCS-BMS-GATEWAY - Bacnet MS;TP: Setting the MAC Address for BMS Network; Bacnet MS;TP and Bacnet;Ip: Setting the Device Instance; Metasys N2: Setting the Node-ID; Bacnet MS;TP: Setting the Serial Baud Rate for BMS Network

MCS-BMS-GATEWAY Startup Guide REVISION 4.5
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3.3.2 BACnet MS/TP: Setting the MAC Address for BMS Network
Only 1 MAC address is set for MCS-BMS-GATEWAY-NL regardless of how many devices are connected to
MCS-BMS-GATEWAY-NL.
Set the BACnet MS/TP MAC addresses of the MCS-BMS-GATEWAY-NL to a value between 1 to 127 (MAC
Master Addresses); this is so that the BMS Front End can nd the MCS-BMS-GATEWAY-NL via BACnet auto
discovery.
NOTE: Never set a BACnet MS/TP MAC Address from 128 to 255. Addresses from 128 to 255 are Slave
Addresses and can not be discovered by BMS Front Ends that support auto discovery of BACnet MS/TP
devices.
Set DIP switches A0 – A7 to assign MAC Address for BACnet MS/TP for the MCS-BMS-GATEWAY-NL FPC-
ED4.
Please refer to Appendix A.1 for the complete range of MAC Addresses and DIP switch settings.
NOTE: When using Metasys N2 and Modbus TCP/IP, the ‘A’ Bank of DIP
switches are disabled and not used. They should be set to OFF.
NOTE: When setting DIP Switches, please ensure that power to the boaris OFF.
3.3.3 BACnet MS/TP and BACnet/IP: Setting the Device Instance
• The ‘A’ Bank of DIP switches are used for two purposes:
• For BACnet MS/TP, they are used to set the BACnet MS/TP MAC address (Section 3.3.2)
• For both BACnet MS/TP and BACnet/IP, they are also used to determine the BACnet Device
Instance values
• The BACnet Device Instance can range from 1 to 4,194,303.
• The BACnet device instances will be calculated by taking the Node Offset (default is 18100)
found in Web Congurator and adding it to the value of the ‘A’ Bank DIP switches.
When more than one device is connected to the MCS-BMS-GATEWAY-NL, the subsequent BACnet Device
Instance values will be sequential from the rst/previous device.
For example:
• Given that Device Instance = Node_Offset + A Bank DIP switch value = Default Node_Offset
value = 18150 = ‘A’ Bank DIP switch value = 03 (as per Appendix A.10 DIP Switch Setting)
• Then the Device Instance values for the devices are: = Device 1 Instance = 18153 = Device 2
Instance = 18154
3.3.4 Metasys N2: Setting the Node-ID
• Set DIP switches A0 – A7 to assign a Node-ID for Metasys N2 to the MCS-BMS-GATEWAY-NL.
• Node-ID’s range from 1-255.
• Refer to Appendix A.10 for the full range of addresses for setting Node ID.