Innotech Genesis II Digital Controller (v5) - Manual (Page 72)

Genesis II Installation Instructions
Page 72 © Mass Electronics Pty Ltd 2010 Edition 2.0 dated 06/12/2013
3-4.18 GENII WMI Wireless Module Interface
The Innotech GENII WMI Wireless Module Interface is a remote expansion for the Genesis II Direct
Digital Controller or MPCII Mid Points Controller. The GENII WMI provides an interface to the SENRx
series of wireless temperature sensors.
The GENII WMI (Figure 3-22) is powered by 24VAC ±10% @ 50/60Hz. Power Consumption is 4 VA
maximum.
There are no inputs or outputs on a GENII WMI. It is designed to receive the input data from any
SENRx modules located up to 20 metres away (depending on obstructions).
The RS485 Comms connection block is in the upper right section of the module and the End of Cable
Jumper is next to it (Figure 3-22).
The Cable run between the Genesis II Direct Digital Controller and GENII WMI, or MPCII Mid Points
Controller and GENII WMI, should not exceed 600 metres. The Comms wiring requires cable especially
suited for RS485. Other shielded cable is not suitable and may cause spasmodic Comms failures.
The GENII WMI should be mounted within a 20 metre radius (depending on obstructions) of all SENRx
modules from which it will be receiving data ( Figure 3-23 ). The location should be dry, clean and free
of excess vibration.
GENII WMI modules operate within the 2.4-2.5 GHz worldwide unlicensed Industrial-Scientific-Medical
(ISM) frequency band.
There are four jumpers located in a row on the GENII WMI, labelled F0, F1, F2 and F3. These select
the frequency channel to use within the 2.4-2.5 GHz range. Typically, these jumpers need only be
changed if multiple GENII WMIs are used, or in areas with poor reception or strong interference.
Figure 3-22: GENII WMI Wireless Module Interface
• The unit must be powered down before jumpers are altered. Anti-static precautions should be taken when
changing addresses or adding or removing cabling from the terminals.
• The frequency jumpers on the GENII WMI must exactly match the frequency jumpers on any SENRx modules to be
communicated with.
IMPORTANT