I am trying to log measurement devices using TC (version dated 02/02/2026), but I have not been able to connect to the devices (Windows 10 Pro, connected via a USB cable to a USB 2.0 port on an X370 motherboard).
1. Atorch DL24 (new version with additional USB-C power socket):
When connecting the switched-on device, the sound for a new external device plays in Windows. In Device Manager, I can only find a new entry under ‘Human Interface Devices’ labelled ‘USB Input Device’. The location is ‘Port_#0016.Hub_#0001’. In the details, there is nothing to indicate the DL24.
In TC, I selected the Atorch DL24 in ‘Load devices’, entered “com16” (or com9) as the address and ticked ‘Enabled’. When I click on ‘Reconnect’, I end up in the “Commands” tab with the default entry ‘;; Use ’Load devices‘ page ...’
What am I doing wrong?
2. Agilent U1253A
Connection via an old U1177A on the same USB port. This gives me the entry ‘PL2303HXA PHASED OUT SINCE 2012....’ under ‘Ports (COM & LPT)’ in Device Manager. Due to known issues, I had installed an old driver (3.3.3.102) some time ago. This is apparently quickly replaced by Windows with driver version 3.8.40.0. After reselecting the old driver, no further errors are reported. Device Manager now shows Porlific USB-to-Serial Comm Port (COM9). However, the location is still ‘Port_#0016.Hub_#0001’.
When I select the Keysight U1253A in TC and enter the address com9 (or com16), I get the message ‘;; USB-Serial Controller (COM9) Did not find any match for: Agilent Technologies,U1253A,MY511xxxxx,V1.20’
Does TC only support the Keysight U1253A and not the Agilent U1253A? I believe the U1253A was only sold under the Agilent name. The U1253B was then marketed as Keysight. In the Devices folder of the TC installation, I can’t find a file named either Agilent 125XA or Keysight U125XA. Is something missing?
Edit: Found the file KeysightDMMs.txt in the Devices-Folder, edited the entry
#metadef Agilent U1272A
#idString Keysight Technologies,U1253A,
#name Keysight U1253A
#handle K1253
#sections U125xA
to
#metadef Agilent U1272A
#idString Agilent Technologies,U1253A,
#name Agilent U1253A
#handle K1253
#sections U125xA
Now there is a Agilent U1253A in the select-list, but it doesn't work.