| Data is subject to change without notice.
The 435 BACnet Gateway has been specifically designed to expose the ‘router’, ‘group’ and ‘device’
parameters from Helvar routers in a designated workgroup through the TCP/IP network. The
BACnet/IP BMS can use this information to control and monitor the lighting, energy and
environmental conditions.
1.1. Device limits and compatibility
The 435 BACnet Gateway has the following limitations and compatibility requirements:
• Limits:
o Single workgroup
o Max. 2 units per workgroup (may require different device instance numbers: see
Configure the comms settings
).
o Max. 20 router
o Max. 300 groups
o Max. 2000 BACnet/IP points (overall limit)
• Compatibility:
o Router firmware version 5.2 or above.
o Router IP addresses need to have the same first and second octets, i.e. ‘10.254.x.x’.
o Web browsers: Firefox (recommended), Chrome and Internet Explorer.
1.2. Description of the unit
The 435 BACnet Gateway includes internal HTML configuration pages designed to simplify the
engineering and setting of the interface. These pages make it easier to configure the
communication requirements. The connected Helvar routers appear as a single BACnet device in
the BACnet/IP BeMS, whereas the predetermined parameters appear as predetermined BACnet
object types.
From the configuration pages you can do the following:
• Identify:
o Each Helvar router in a defined workgroup.
o The required Helvar router and DALI device parameters.
o Which BACnet Object type is assigned to each parameter.
• Simplify the configuration of the BACnet/IP communication requirements and allow for
connected routers and devices to appear on the BACnet/IP BMS.
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