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+--- Thread: 1-wire sensor management (/showthread.php?tid=125)
1-wire sensor management - raunz - 06.11.2015
Hi,
I'm a bit stuck, while trying to get 1-wire sensors working.
I have connected the sensors to the LM4 and the sensors appear in the listing on "1-wire" tab. Sensors are MAXIM DS18S20+
Thing that puzzles me, is that I can't access the "sensor settings" popup in UI. I can see in LM4 manual on page 135, that such popup exists, but how I can access it?
In the listing I have sensor ID, "poll interval": disabled and timestamp in "value received at". The printscreen is also attached.
If I delete the sensor with red "X", the row is deleted and it reappears again.
Please advise.
kind regards
--
rauno
RE: 1-wire sensor management - admin - 06.11.2015
The version that you are using only supports DS18B20 sensors, but not DS18S20 sensors. Support will be added in the next release, in the meantime we can manually install a patch on your LM if you can provide remote access, please contact us by e-mail for that.
RE: 1-wire sensor management - Jørn - 19.09.2016
(06.11.2015, 11:54)admin Wrote: The version that you are using only supports DS18B20 sensors, but not DS18S20 sensors. Support will be added in the next release, in the meantime we can manually install a patch on your LM if you can provide remote access, please contact us by e-mail for that.
Do you have an updated list of 1-wire sensors that are supported`? In my case for the LM5.
RE: 1-wire sensor management - admin - 20.09.2016
Nearly all 1-wire devices are supported through scripting.
For now UI supports these devices, but new profiles can be added by request.
DS18S20, high precision digital thermometer (family 10)
DS2408, 8-channel addressable switch (family 29)
DS2413, dual channel addressable switch (family 3A)
DS18B20, programmable resolution digital thermometer (family 28)
RE: 1-wire sensor management - andeug - 10.10.2016
The sensor will be shown into 1-wire menu immediately after connecting it to the LM4 1-wire interface? Or do I need to add a specific sensor profile?
I would like to test one temperature sensor which is making me troubles (I've wrote about in this topic).
RE: 1-wire sensor management - admin - 10.10.2016
It will be discovered automatically, you don't need to assign any profile, just map required objects.
RE: 1-wire sensor management - a455115 - 16.05.2025
I’m experiencing the same issue, but my sensors are from the 28h family (DS18B20), which should be fully supported according to the posts above. The ID address shows up in the 1-Wire tab, but no current value is displayed. Any suggestions?
RE: 1-wire sensor management - admin - 16.05.2025
Have you tried mapping sensors to objects?
RE: 1-wire sensor management - a455115 - 16.05.2025
(16.05.2025, 15:07)admin Wrote: Have you tried mapping sensors to objects?
Yes, the sensors are already mapped to objects (as shown in the configuration popup). However, the current value is still not displayed in the 1-Wire tab.
RE: 1-wire sensor management - admin - 16.05.2025
How long is the 1-wire bus?
RE: 1-wire sensor management - a455115 - 16.05.2025
(16.05.2025, 16:27)admin Wrote: How long is the 1-wire bus?
The 1-Wire bus is only 10 cm long for testing purposes, and a pull-up resistor is already in place.
RE: 1-wire sensor management - admin - 16.05.2025
You don't need a resistor. Use 3-wire connection for sensors.
RE: 1-wire sensor management - a455115 - 16.05.2025
(16.05.2025, 16:35)admin Wrote: You don't need a resistor. Use 3-wire connection for sensors.
I’m using an LM5 with a DS9490R USB 1-Wire adapter connected to three wires of a DS18B20 sensor (VCC, GND, DATA). I’ve tried both with and without a pull-up resistor, and the result is the same — the sensor address is detected, but no current value is shown.
Previously, one of the three sensors worked fine with an older firmware version, but now none of them report a value, even though they’re recognized.
RE: 1-wire sensor management - admin - 16.05.2025
Try reading temperature value via a script and post what you get: https://forum.logicmachine.net/showthread.php?tid=2982
RE: 1-wire sensor management - a455115 - 16.05.2025
(16.05.2025, 16:51)admin Wrote: Try reading temperature value via a script and post what you get: https://forum.logicmachine.net/showthread.php?tid=2982
RE: 1-wire sensor management - a455115 - 16.05.2025
I performed a full reset using the recovery procedure, then reinstalled the firmware and all required packages (including the 1-Wire package). Unfortunately, the result is still the same — the sensors are detected, but no data is shown, and the “Current value” field remains empty.
Is it possible that I'm making a mistake in the choice or installation order of the packages? Could something be missing or conflicting?