Multi Station Programs; Overview And Operation - Toro Micro-Master Series User Manual

9

Multi Station Programs

9.1

Overview and Operation

The Micro-Master Touch controller supports 32 independent multi-station programs. All programs
operate independently of each other, hence programs can operate concurrently or overlapped if
required. Overlapping programs allows programs to control different areas or to perform different
functionality without affecting other programs. For example, one program can be used for irrigation,
whilst another program might be controlling security lights.
Irrigation Programs can be set up in two different modes
1. Sequential Irrigation
2. Group Irrigation.
Program Operation
When the Micro-Master Touch controller is powered on, all enabled programs are in the Idle state.
When a program is due to start according to the Day Table and Start Times, or the Start Control Input
is closed, the program will decide whether to execute a Prestart Delay or continue to Starting. If a
PreStart Delay has been set, the program starts the Pump Set, then counts down the set PreStart
Delay. At the conclusion of the delay, the program starts the first group in the program. If an
InterStation Delay has been set, the delay is inserted between each station in the group. The
program then moves to the Active state.
In the Active state, the program counts down the runtime, while monitoring the Control Sensor Inputs.
If a Control Sensor input becomes valid, the appropriate action is executed. When the group runtime
expires, the program determines the next valid group and moves to the Change Group state. The
program attempts to maintain a consistent number of active stations while changing groups. If there
are no delays, stations on the same Expansion Unit are turned on and off at the same time. If there
is an InterStation Delay, but no Group Delay, the controller will turn off one station in the current
group and turn on one station in the next group, before delaying for the InterStation Delay time. If
there is a Group Delay time set, then all of the stations in the current group are turned off (with an
InterStation Delay, if set), the program delays for the Group Delay time and the stations in the next
group are turned on (with an InterStation Delay if set).
For example. A program has stations 1, 2, 3 in group 1, and stations 3, 4, 5 in group 2, and has an
InterStation Delay, and no Group Delay. When group 1 completes, the controller will turn off station
1 and turn on station 4 at the same time. The controller will then delay for the InterStation Delay
time. Then the controller will turn off station 2 and turn on station 5 at the same time. Station 3
continues to operate through the group change.
When all programmed groups have run, the program stops the pump set, and filter bank. If a Cycle
Delay is set, and more than one cycle is programmed, the program enters the Cycle Delay state. At
the expiration of the Cycle Delay, the program will restart the irrigation, using a PreStart Delay if one
is set.
After all cycles have completed, the program stops the pump set and filter bank, starts the next
program is one has been set, and enters the Idle state, ready to run the process again when required.
The Irrigation Program operation is shown in Figure 23.
© 2014 Toro Australia Pty Ltd
Micro-Master Touch User Guide
38 Ver 1.2, June 2014