System manager
Part 3 — Reference.
Managers ribbon tab → System manager
20.1 What lives here
Everything the central unit runs internally, rather than on the bus. Seven tabs, each showing how many items you have used against the CU maximum:
Timers
Countdown timers
64
Counters
Event counters
64
Heat/Cool areas
Heating and cooling regulators
—
System programs
Time programs
—
System devices
—
System bits
True/false storage
500
System ints
Numeric storage
500
This is where several "missing" managers went. Time programs, heating programs and system devices are all here, not on separate ribbon buttons.
20.2 Timers
Range 0.0 s to 24 hours, up to 64.
Name
Timer value
The value whose elapse raises Timer elapsed
Tick interval
The time base for Timer tick
Automatic reset
Return to zero on reaching the value
Automatic stop
Stop on reaching the value
off
off
keeps counting past the value
off
on
stops at the value
on
off
resets and keeps running — a repeating cycle
on
on
resets and stops — the usual one-shot
Actions: Timer tick, Timer elapsed. Functions: Timer start, Timer stop, Timer reset, Timer copy.
Timer start on a running timer restarts it — the basis of re-triggerable corridor lighting. See Tutorial 8.
20.3 Counters
Up to 64, holding 0 to 4 294 967 295 (32-bit).
Name
Counter value
The target for Counter reached value
automatic reset
Zero the counter on reaching that value
Setting Counter value also tells the system that the Counter reached value action has a target.
Actions: Counter increase, Counter decrease, Counter reached value, Counter changed value. Functions: Counter increment, Counter decrement, Counter reset, Counter set value, Counter copy.
20.4 System bits
Up to 500. One true/false each.
Name
non volatile
Keep the value across a central-unit reboot
Alias:
Alternative name for third-party integration
Add to iNELS 3 export:
Expose to external systems
Read only:
External systems may read but not write
Actions: System bit true, System bit false. Functions: System bit set bit, System bit null bit.
Tick "non volatile" for anything a person set on purpose. Holiday mode surviving a power cut is what makes a system feel reliable.
20.5 System integers
Up to 500. One number each. Same fields as system bits, plus an Address — an index starting from 0.
Actions: SysInt_Change, SysInt_ChangeUp, SysInt_ChangeDown. Functions: Sys int increment, Sys int decrement, Sys int copy, Sys int set, Sys int reset.
20.6 System programs
Time programs. + to add, then choose from Select program type:
Periodical
A moment, repeating
Continuous
One stretch between two dates
Two-state
On/off stretches across a week
Heating/Cooling - week
A weekly temperature plan, plus a holiday variant
Heating/Cooling day
A single-day temperature plan, for public holidays
All programs act as actors with Program value switch ON and Program value switch OFF.
Periodical
Program name
Activation time/dispersion
When it fires
Periodical settings
Which days or months
Every week
weekly
days of the week
Every month
monthly
days of the month
Selected months
daily
months of the year
At least one day or month must be ticked, or the confirm button stays unavailable.
Continuous
Program name, Start date and Stop date. Switches ON at 00:00:00 on the start date and OFF at 23:59:00 on the stop date.
Two-state
A weekly on/off graph. Per day, up to 16 time stamps:
Mark adds a single time stamp
Mark then Window adds a pair
drag a stamp's line, or click its time label and type
click below the stamps to set each stretch — green is ON, red is OFF
Right-click a day label to copy: tick target days, or use Working days, Weekend, All week, then Copy actual program.
Heating/Cooling programs
Same graph, but each stretch carries a temperature rather than on/off.
Program name
Default
Baseline temperature wherever nothing else is set
Favorite1–Favorite4
Four preset temperatures used across the whole system
Visible range Min view / Max view
The graph's vertical scale
All temperatures accept −40 °C to +200 °C in 0.1 °C steps.
Set a stretch's temperature by dragging its horizontal line, or right-click in the yellow area and choose Default or Favorite1–Favorite4.
Time plans can be edited live. After the first upload, change a plan and confirm with ✓ — no full re-upload needed.
20.7 Heat/Cool areas
The heating and cooling regulators. + above the Heat/Cool list adds one. Three sub-tabs.
Parameters
Address
Assigned by iDM3
Description
The area's name
Control type
See below
Enable H/C hysteresis
0 to 50 °C in 0.01 °C steps — used by one-temperature control
Check the difference between temperature of heating and cooling
On prevents heating and cooling running together when the heating target exceeds the cooling target; Off allows it
Plan-Heating / Plan-Cooling
The weekly time plans
Holiday Plan-Heating / -Cooling
Public holiday Plan-Heating / -Cooling
Thermostat 1 …
Up to 6 per area, with Add and Remove
Thermostat 1 Page
Which page a multi-page thermostat displays
User control heating / cooling
The user switches mode from a controller input
H/C automatic control - two temperatures
Separate heating and cooling targets; the system chooses
H/C automatic control - one temperature
One target for both, switched by hysteresis
Online parameters
Editable via the pencil icon.
Maximal temperature
Upper limit while heating
Antifreeze temperature
Lower limit while heating
Restart regulator after closing window
How long heating stays off after a window opens
Maximal close window time
After this, an open window is ignored
Manual mode on time
How long a manual override lasts, with its Value
Public holiday
Dates using the public-holiday plan, with Copy – Public holiday
Always set Antifreeze temperature. It protects the building when everything else is wrong.
Connections
Heating regulator / Cooling regulator
Filled automatically if added via Device manager
Thermosensor
The temperature input for this area
Critical temperature sensor
Floor-heating limit sensor
Heating output
This area's valve or actuator
Heating supply
The shared boiler demand
Cooling output / Cooling supply
The cooling equivalents
Minimum for heating only: heating time plan, heating regulator, heating output, heating supply. For both: all eight.
Regulator parameters
Clicking Heating regulator or Cooling regulator opens its own Parameters (Address, Description) and Online parameters:
Hysteresis
Dead band preventing rapid switching
Source delay switch time
Delay before firing the boiler after the valve is asked to open
Critical temperature
Floor-heating limit — choose Not Configuration to ignore it
Hysteresis of critical temperature
Dead band for the above
Full walkthrough: Tutorial 6.
Next: Chapter 21 — DALI.