Multi-unit systems (“master/slave”) – Nortec LINKS XPS MH User Manual
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Links XPS for MHTC | 2
The MHTC Nortec Links XPS Option allows for the integration of a MHTC Series humidifier within
a BACnet, Johnson N2 or LonWorks network. This option features a gateway that has the
capability of converting information from the host Modbus protocol to a specified secondary
protocol.
The following protocol options are available, and must be specified at time of order:
Table 1: Protocol Options
Protocol
BACnet MS/TP
BACnet / IP
Johnson N2
LonWorks
Multi-Unit Systems (“Master/Slave”)
Up to 8 humidifiers can be chained and monitored through a single Links XPS package. In this
configuration, the unit with the Links XPS package is designated the “Master Unit”, while the
remaining 7 humidifiers are configured as “Slaves”. The master unit is connected to the
Building Management Systems (BMS). Each unit is separately addressed, it is possible to
monitor and control each unit individually.
Different networking configurations may be achieved depending on the type of network being
used. One networking example could have a Gateway installed inside the lead unit, which could
then be daisy-chained to successive units. In turn, the lead unit would connect to a Building
Management System (BMS) network via a shielded, twisted-pair connection. Please see wiring
section for additional detail. A second example could have a series of units directly connected
to an Ethernet network. This is only possible for BACnet communication and is essentially
referred to as a BACnet/IP configuration.