Direct connection between HmIP-WTH-2 and HmIP-eTRV-2
Verfasst: 07.12.2018, 14:10
Hello all,
I have an HmIP-WTH-2 and HmIP-eTRV-2 and after a lot of searching I found this in the WEBUI Handbuch:
Für eine vollständige Verknüpfung zwischen Wandthermostat und Heizkörperthermostat ist es
notwendig, die Geräte über 3 Kanäle miteinander zu verknüpfen:
• Wandthermostat Kanal 1 mit Heizkörperthermostat Kanal 6
• Wandthermostat Kanal 2 mit Heizkörperthermostat Kanal 5
• Wandthermostat Kanal 3 mit Heizkörperthermostat Kanal 3
This indeed works fine, but I wonder about the logic of this configuration.
In "Homematic IP Devices - Technical Documentation" dated 26.10.2018, I found the following descriptions of the channels:
HmIP-WTH-2: (page 8144)
Channel number Channel type
0 MAINTENANCE_BAT_CL
1 HEATING_CLIMATECONTROL_TRANSCEIVER
2 HEATING_CLIMATECONTROL_RECEIVER
3 HEATING_CLIMATECONTROL_CL_TRANSMITTER
4 HEATING_SHUTTER_CONTACT_RECEIVER
5 HEATING_CLIMATECONTROL_SWITCH_TRANSMITTER
6 HEATING_KEY_RECEIVER
7 CLIMATECONTROL_FLOOR_TRANSMITTER
HmIP-eTRV-2: (page 7842)
Channel number Channel type
0 MAINTENANCE_BAT_BL
1 HEATING_CLIMATECONTROL_TRANSCEIVER
2 HEATING_CLIMATECONTROL_RECEIVER
3 HEATING_CLIMATECONTROL_CL_RECEIVER
4 HEATING_SHUTTER_CONTACT_RECEIVER
5 HEATING_ROOM_TH_TRANSCEIVER
6 HEATING_ROOM_TH_RECEIVER
7 HEATING_KEY_RECEIVER
Unfortunately this does not give me the slightest clue why exactly those connections listed in the WEBUI Handbuch have to be created.
Although the system works fine, I like to understand the logic behind it.
Another question: In the WEBUI handbuch I also read:
Bei der Verknüpfung zwischen Heizkörperthermostat und Heizkörperthermostat ist die Verknüpfung
über 2 Kanäle notwendig:
• Heizkörperthermostat Kanal 1 mit Heizkörperthermostat Kanal 2
• Heizkörperthermostat Kanal 2 mit Heizkörperthermostat Kanal 1
Are these connections also required when 2 HmIP-etrv-2's are connected to one HmIP-WTH-2?
Best regards, Stefan.
I have an HmIP-WTH-2 and HmIP-eTRV-2 and after a lot of searching I found this in the WEBUI Handbuch:
Für eine vollständige Verknüpfung zwischen Wandthermostat und Heizkörperthermostat ist es
notwendig, die Geräte über 3 Kanäle miteinander zu verknüpfen:
• Wandthermostat Kanal 1 mit Heizkörperthermostat Kanal 6
• Wandthermostat Kanal 2 mit Heizkörperthermostat Kanal 5
• Wandthermostat Kanal 3 mit Heizkörperthermostat Kanal 3
This indeed works fine, but I wonder about the logic of this configuration.
In "Homematic IP Devices - Technical Documentation" dated 26.10.2018, I found the following descriptions of the channels:
HmIP-WTH-2: (page 8144)
Channel number Channel type
0 MAINTENANCE_BAT_CL
1 HEATING_CLIMATECONTROL_TRANSCEIVER
2 HEATING_CLIMATECONTROL_RECEIVER
3 HEATING_CLIMATECONTROL_CL_TRANSMITTER
4 HEATING_SHUTTER_CONTACT_RECEIVER
5 HEATING_CLIMATECONTROL_SWITCH_TRANSMITTER
6 HEATING_KEY_RECEIVER
7 CLIMATECONTROL_FLOOR_TRANSMITTER
HmIP-eTRV-2: (page 7842)
Channel number Channel type
0 MAINTENANCE_BAT_BL
1 HEATING_CLIMATECONTROL_TRANSCEIVER
2 HEATING_CLIMATECONTROL_RECEIVER
3 HEATING_CLIMATECONTROL_CL_RECEIVER
4 HEATING_SHUTTER_CONTACT_RECEIVER
5 HEATING_ROOM_TH_TRANSCEIVER
6 HEATING_ROOM_TH_RECEIVER
7 HEATING_KEY_RECEIVER
Unfortunately this does not give me the slightest clue why exactly those connections listed in the WEBUI Handbuch have to be created.
Although the system works fine, I like to understand the logic behind it.
Another question: In the WEBUI handbuch I also read:
Bei der Verknüpfung zwischen Heizkörperthermostat und Heizkörperthermostat ist die Verknüpfung
über 2 Kanäle notwendig:
• Heizkörperthermostat Kanal 1 mit Heizkörperthermostat Kanal 2
• Heizkörperthermostat Kanal 2 mit Heizkörperthermostat Kanal 1
Are these connections also required when 2 HmIP-etrv-2's are connected to one HmIP-WTH-2?
Best regards, Stefan.