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Timers

In the Qbus software you can select 5 timer modes:
 

  • Timer 1 (“Forget timer”):


Each time the button is pressed, the timer is switched on or off. For example, in a hall, the button is pressed once to turn on the light for a certain period of time (set by clicking the "Properties" button and using the "Min" or "Sec" buttons to select the time in minutes or seconds), and a second time to extinguish the lights.

ATTENTION: work as long as possible in seconds (up to more than 4 minutes) to have an accuracy of 1 second. If you set the timer in minutes, the accuracy is 1 MINUTE.

 

  • Timer 2 ("Staircase timer"):


Each time the button is pressed, the timer is reset to the set value. For example, if your timer is set to 3 minutes, the timer will run for 3 minutes each time you press the button. This timer does not work with motion detectors - motion detectors can only control toggle I/O’s and will continue to count down for the period set in the detector module.
From CTD FW3.08 the Timer2 has an extra parameter: When the “Automatic Reset” is turned on, this timer will be reset to its set value when it reaches 0. Such a timer can be useful for continuous testing in analogue logic.

 

  • Timer 3 (“lazy timer”):


The timer is activated the first time the button is pressed. Pressing the button a second time switches on/off mode - the value set in the timer is then no longer relevant. A third press of the button switches the I/O off. For the front door, for example, you can use a timer, but you also have the option of leaving the light on indefinitely without the timer turning it off automatically. If you have selected Timer 3 and set it to, for example, 3 minutes, and you press the button, the timer will be activated for 3 minutes, and the light will turn off at the end of that period. If you press the button twice, the light will stay on until you press it a third time - then the light will go out.

 

  • Timer 4:


This is a linked timer: an impulse (pressing a button, motion detection, ...) activates an I/O (e.g. I/O 1). After a certain period of time (can be set by the user), a second I/O is activated (e.g. I/O 2, selected by the user). When I/O 1 (the “master”) is turned off, I/O 2 (the “slave”) will also be turned off after a preset period. Example: When you come home in the evening, the motion detector outside turns on the front door lighting, and 1 minute later the hallway lighting.
To program this timer, you must assign the Timer4 master for the first I/O. When you click "enter", a drop-down screen will ask you to define the I/O that will be associated (with a certain delay) to this first I/O (will be defined as Timer4 slave). You can set the delay time by clicking "Properties".
 

Qbus System Manager III Manual Update 04 2025 pdf image 129
Qbus System Manager III Manual Update 04 2025 pdf image 130

The delay time can be set by pressing the “Properties” button.

  • Timer 5

    With this timer you can link a manual input (switch) and a detector input. A detector activates an I/O only when it detects movement or when the light level falls below a set threshold (see below in MDI/MDO programming). In the Qbus system, a detector has priority over a switch. If you also want to control an I/O controlled by a detector with a switch, the I/O will not respond to the command of the switch if the parameters of the detector do not match (e.g. no movement detected or light level still too high - the detector turns your I/O off immediately after you command the switch to turn it on).

    You can avoid this problem by using a Timer 5. A timer 5 is programmed as follows:

    Step 1: Create a new I/O (Timer 5 Manual) on the switch you want to use to control that I/O. When you click "enter", you will be asked to name the I/O that you want to control with the detector (you will have two names for the same I/O, one for the manual control, the other for the detector - add the I/O "manual" or "detector" so you can distinguish between the two).

Qbus System Manager III Manual Update 04 2025 pdf image 132

Step 2: You must also link Timer 5 Detector to the detector you want to use to control this I/O. If you program a SWC04M, you can link this Timer 5 Detector directly to first input key. However, if you use an MDI01 or SEN04 as a detector, you must create a fictitious bistable I/O, as an MDI01 or SEN04 can only control bistable I/O’s (no timers). In this case, first create a fictitious bistable I/O, and link this fictitious I/O to Timer 5 Detector via logic

 

Step 3: In the MDI01 or SEN04, use the fictitious I/O as one of the controlled I/O’s: when the detector now detects something, it will switch on the fictitious I/O, which in turn activates Timer 5 Detector (both are linked via an internal logic function ).

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Step 4: In order to give priority to the manual control of the I/O over the Detector control, you must assign the manual I/O to the relay to which the I/O is connected. Your manual operation now takes precedence over your detector.

Qbus System Manager III Manual Update 04 2025 pdf image 135