Owner's Manual for VIMAR models including: 20850, 19850, 16850, 14850, 20850 Passive Infrared Motion Detector, Passive Infrared Motion Detector, Infrared Motion Detector, Motion Detector, Detector

Installer manual (440 kb)

Ανιχνευτής IR KNX Silver - 14850.SL

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ZIS xx850 MI.102934
BUILDING AUTOMATIONS Motion detector: communication objects

Motion detector
20850, 19850, 16850, 14850 Passive infrared motion detector, KNX standard, grey ­ 2 modules.

20850

19850

16850

14850

Functionality

This device detects motion within the sensor's range of action.

When the movement has been validated by an internal filter, a

"presence message" is sent over the KNX bus and the green

LED lights up. This is done according to the set brightness

threshold. Note that the green LED does not light up every time

a movement is detected, but only when a "presence message"

is sent.

The device is capable of activating a movement event from an

external source or from any KNX device.

A twilight sensor is also present which causes the lights to be

turned on or off according to daylight brightness levels. It is

possible to set two types of threshold (upper and lower) and to perform various operations according to the current level. These actions allow individual or cyclical On/Off messages to be sent. It is also possible to postpone message sending to validate the effective level of the light sensor. For MASTERSLAVE operation with multiple motion detectors, refer to the explanation of KNX object no. 2 "External trigger".
Behaviour after bus on/off Bus off: data are not saved. Bus on: motion detection is enabled after 30 seconds, the time necessary for the IR sensor to stabilise.
Behaviour after reset As for bus on.
Communication objects
List of existing communication objects

Communication objects

KNX objects: motion detector in detail.

Motion detector communication objects

Number ETS name

0

Motion detector

1

Motion detector

Function Movement switch Forced Disabled

Description

Length

(if the "Motion Detector" parameter is enabled) - a bit that goes to "1" if a movement is detected

1 bit

(if the "Motion Detector" parameter is enabled) to deactivate the motion detector via the bus so that the device does NOT send multiple messages 1 bit on detecting a moving body

Flag 1 C RWT U

X

X

X

X

2

Motion detector

External trigger

(if the "Motion Detector" parameter is enabled) if there are multiple PIRs

set as "Motion detector" controlling the same light, choose one as MAS-

TER and associate its "Command on movement" object with the "Trigger"

objects of the other SLAVE PIRs in the same group as the relay to be con-

trolled (so for the SLAVE PIRs the "Command on movement" object will be unused). This way each SLAVE PIR will be able to reset the time count

1 bit

of the MASTER PIR, which via the "Command on movement" object ef-

fectively activates/deactivate the light relay of the same group. For exam-

ple, in a long corridor this ensures that the light does not go out during the

time it takes to walk from the detection zone of one PIR to that of another

X

X

4

Twilight

Switch

5

Twilight

Forced Disabled

if the "Twilight" parameter is enabled: the light turns on/off according to daylight brightness levels

1 bit

(if the "Twilight" parameter is enabled) to deactivate the twilight sensor via the bus so that the device does not send multiple messages on reaching 1 bit the set daylight brightness threshold

X

X

X

X

C = Communication; R = Read; W = Write; T = Transmission; U = Enable update

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BUILDING AUTOMATIONS Motion detector: communication objects

Twilight function

"Twilight function" parameters For automatic power on/off according to daylight brightness levels.

ETS text
Action at lower threshold
Action at upper threshold
Cyclic period
Object "Forced disable"
Disable twilight function with

Available values [Default value] Nothing Off message On cyclic message Off cyclic message [On message] Nothing On message On cyclic message Off cyclic message [Off message]
1 s...1 h
[1 m]
Disable Enable [Disable]
On message
Off message
[On message]

Lower threshold

10%...100% [20%]

Upper threshold

10%...100% [90%]

1 s...5 min. Confirmation time
[10 s]

Comment
The PIR operates with a lower and upper threshold; this parameter defines the behaviour below the lower threshold
The PIR operates with a lower and upper threshold; this parameter defines the behaviour below the upper threshold
If a cyclic action is selected, otherwise it is ignored
To disable twilight sensor via the bus
If "forced disable" object is enabled. The message can be set to force deactivation of the sensor
Lower threshold value
Upper threshold value
Time delay for action when the daylight brightness value exceeds the threshold value

"Twilight function" parameters

Note. MASTER-SLAVE operation: if you want the light to be turned on by the SLAVE PIRs and turned off by a PIR defined as MASTER, in the relay group you must associate the "Command on movement" object of the MASTER PIR and the "Trigger" objects of the SLAVE PIRs (in which the "command on movement" object will remain unused).

Detection performance: the data are approximate (the device is not a LUX measuring instrument)

Motion detector: FAQs
(20850, 19850, 16850, 14850)
1. The sensor has turned the light on but it does not detect me if I walk in front of it and after a while the light goes off.
You need to set a lower value for the "Movement timeout" parameter, which is the delay time before further ON commands are sent if the sensor continues to detect movement

2. Once the sensor has turned oFF the light, it does not turn it on even when someone walks directly in front of it.
You need to set a lower value for the "Minimum wait before sending new message" parameter, which is the delay time before further ON commands are sent if the sensor continues to detect movement.

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BUILDING AUTOMATIONS Motion detector: communication objects

ETS reference parameters
General You can choose to enable a different device function. The two functions (Motion detector and Twilight sensor) must not be enabled together.

General parameters

ETS text
Enable motion detector

Available values [Default value]
[Enable]
Disable

Enable twilight function

Enable [Disable]

Comment
To turn on a light when motion is detected
To turn on a light when daylight brightness falls below a certain value

General settings

Motion detector
"Motion detector" parameters To turn on the light when a moving person is detected.

ETS text

Available values [Default value]

Comment

Motion detector Yes - No

independent from

light

[No]

If "Yes" the daylight brightness threshold is ignored (see "Brightness threshold")

Motion detector below brightness threshold
Send message

10%...100% [50%]

If the motion detector depends on the light: defines the threshold below which motion is to be detected (0%= operates only in the dark)

on movement

cyclically

How to send

[in the case of move- a presence message

ment]

1s...1 h
Minimum wait before sending new message
[5 s]

If send message "on movement" is selected, this is the delay time before sending the "On" message on detecting movement after the sensor has sent a movement end "Off" message

Cyclic period

1s...1 h [1 m]

1s...1 h Movement timeout
[30 s]

Wait after movement finish

Disable Enable [Disable]

If send message "cyclically" is selected
Time for which the sensor must not detect any type of movement if one has just been detected
Sensor off time

Time wait after movement finish

1s...5 m [10 s]

If "Wait after movement finish" is enabled, this is the time the device waits after detecting the end of movement and before sending an "Off" (if the corresponding parameter is enabled)

Continued

ETS text

Available values [Default value]

Send OFF mes- Yes

sage on movement No

finish

[Yes]

Object "forced disable"

Disable Enable [Disable]

Off message

Disable motion detector with

On message [On message]

Comment
To bring up an object to be used for disabling the motion detector via the bus If the "forced disable" object is enabled. It is possible to set the message to force sensor deactivation

"Motion detector" parameters

Continues
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