Homematic binding does not update device channel despite forceUpdate being true

Add-ons Bindings
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1

Hello!

I have an item for my Homematic HM-CC-RT-DN which i use to put the device into manual mode with a desired temperature value. Item definition with forceUpdate set to true:

Number heating_MANUAL_MODE "Heating Manual [%.1f °C]" <temperature> {channel="homematic:HG-HM-CC-RT-DN:0bxxxxxx:MEQxxxxxxx:4#MANU_MODE", autoUpdate="true", forceUpdate="true"}

If I now update the item via any means to some number, this works. However, if I do the same again (does not matter when), if using the same value, this does not work despite forceUpdate being true.

The log shows the following message:

11:20:21.605 [DEBUG] [ematic.handler.HomematicThingHandler] - Received command '17' for channel 'homematic:HG-HM-CC-RT-DN:0bxxxxxx:MEQxxxxxxx:4#MANU_MODE'
11:20:21.609 [DEBUG] [ternal.communicator.HomematicGateway] - Value '17.0' equals cached gateway value '17.0' with id '0bxxxxxx' and forceUpdate is false, ignoring 'MEQxxxxxxx:4#MANU_MODE'

This is not reallly nice because now the device is not set to manual mode. Setting the item to some other value works of course, but I suppose this problem should not occur in the first, so I suppose this is a bug.

Does anybody have a clue what’s wrong here?

2

Which version of the add-on are you using? As far as I can remember there has been a modification after the 2.0 release.

3

Hello!

I am using the testing repository and the currently installed version (via apt-cache show openhab2) is called 2.1.0~20170202112846-1. I am using the addon that is bundled with that version as far as I can tell.

Edit: feature:list | grep home means:

openhab-binding-homematic                 | 2.1.0.SNAPSHOT
4

Can you try to set forceUpdate in PaperUI? You can enable it by editing a channel. According to the log message it seems that the forceUpdate setting in the item definition is ignored. I think it only possible to set it for a channel.

5

Hello!

I tried to, but honestly I have no clue where to edit that in the UI. I loaded the URL https://myhost/paperui/index.html#/configuration/things/edit/homematic:HG-HM-CC-RT-DN:0bxxxxxx:MEQxxxxxxx and there is the thing configuration for that wireless heating thermostat located. At the bottom of the page you can even en- or disable AES encryption for some channels (but I am sure this means homematic channels and not OpenHAB channels).

But there is no possibility to view or change this certain channel property we are talking about (as far as I can tell).

According to the log message it seems that the forceUpdate setting in the item definition is ignored. I think it only possible to set it for a channel.

Isn’t this a kind of bug then?

Greetings

7

Update to the latest snapshot, forceUpdate has been removed after 02. Feb. and values are always sent to the gateway. Should fix your problem.

8

So my memory was not completely wrong. I remembered that it was removed but was not sure when it was.

Stupidly I only checked my release installation and there forceUpdate still existed … Sorry for the confusion.

9

Okay, thanks for letting me know. I suppose forceUpdate has been removed completely from OpenHAB?

10

yes, it was completely removed as it led to such problems