4.4 Control network details
Peripheral Bus is used to connect I/O extensions to the main controller.
Controller/
Extension Module
POL687.70/MCQ
POL688.80/MCQ
Used on all configurations
Used when configured for 2
Used when configured for 3
Heat Pump Option (old version)
Heat Pump Option (new version) +
Leak detector + Marine version.
Communication modules
The new Microtech 4 has the possibility to offer Modbus RTU and Bacnet (MSTP or IP) communications integrated in the
controller. To activate this feature a specific procedure is used to activate them. This procedure will ask for an activation
key to be entered as a setpoint. This will be done in the factory as part of the unit manufacturing or in the field by asking
for the activation code as a Spare part. Because these features may conflict with others (for example Bacnet IP and Daikin
on Site).
Any of the following modules can be connected directly to the left side of the main controller to allow a BAS interface to
function.
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