Toro Micro-Master Series User Manual page 16

NOTE: Before any installation or removal of a module occurs, all power to the unit MUST
be removed, including the backup battery. Never install or remove a module with power
applied. Damage to the module may occur and this is NOT covered by your warranty.
NOTE: Two screws are used to provide power and to secure the Expansion Modules. All
screws must be installed for the Expansion Module to operate correctly.
The motherboard, which is at the bottom of the case, holds all of the field wiring modules, along with
a power supply module and Radio-Master for Touch RMT200 module, if fitted.
The Power module (already fitted) and Expansion Slots number 5, 6 & 7 use screws to hold the
module in place and are connected to the controller via 8 pins.
Expansion slots 1 to 4 are for the Station(Valve) relay modules, Analogue Input and Digital Input
modules. Each of these modules is connected to the controller by a 20 way edge connector and held
in place by 2 screws. The screw connection points supply 24V AC and GND to the modules, for the
field wiring. Installing a module in slots 1 to 4 is achieved by inserting the tongue of the expansion
module into the edge connector until the 2 screw holes align and then fitting the screws.
The tongue of the module is the slightly smaller end that has stripes down the edge, on both the top
and bottom sides.
Expansion modules 5 & 6 are fitted on edge. Ensure that all the gold pins enter the header connector
on the module and the screw mount aligns with the bracket, then insert the screw. Typically, this is
where the RS485 modules would reside, when other remote units are connected using wire.
Expansion module 7 requires the pins to come through the board into the header and 4 screws to
hold the module in place.
Remember, no power should be present when installing or removing modules. You may also find a
magnetic screw driver of help when trying to install or remove screws.
The processor (or logic) board is the top board in the controller with the LCD screen attached. This
board has 2 slots on the right hand side for various types of communication modules to be installed.
These modules are shorter than the motherboard expansion modules and should never be
interchanged. The connection of the module is achieved by an edge connector and a single screw to
hold the module in place. Once again, slide the tongue of the module into the edge connector until
the screw hole aligns and then insert the screw.
When you restart the controller, navigate to the Expansion Module Configuration page and initiate a
scan by clicking the scan button.
The controller will perform a scan to determine what modules are fitted to the unit and update its
configuration.
An example of a motherboard is shown in Figure 5. This motherboard has been populated with 2 8
Station Relay Modules (MMTOUCH-STN) in Expansion Module numbers 1 and 2, an RS485 Remote
Expansion Module (MMTOUCH-485E) in Expansion Module number 6 and a Radio-Master for Touch
© 2014 Toro Australia Pty Ltd
Micro-Master Touch User Guide
8 Ver 1.2, June 2014