U6 pro Dynamometer data & control

4 posts / 0 new

Sun, 10/20/2019 - 19:02

Mark

Hi i amnew to the foruum and new to writing a program to control the load and get the dat from load cell ,engine & roller rpm, 02 sensor so my question is what would you sugest for softwar and should i send the u6 pro back and get the t7

Mon, 10/21/2019 - 10:25

LabJack Support

U6 or T7:

U6 or T7:
The U6 and T7 are very similar in terms of the number of IO and the analog performance. The advantages of the T7 are:

Ethernet - Longer range and isolates the T7 from the host computer.
Lua scripting - Programs can run right on the T7. This enables operation without a host computer. Many of our customers use scripting to simplify the host application. For instance the script can read from serial sensors or control a PID. The host application only needs to monitor results occasionally write new settings.
Modbus - The T7 uses the Modbus protocol, so it can communicate with standard Modbus SCADA software.
Cross platform - T-Series LabJack devices use our newer "LJM" drive. LJM is cross platform, so programming uses the same functions for Windows, MAC OS, and Linux. The U6 can work with MAC and Linux, but it uses low-level functions through a separate interface.

Which software to use:

We try to make our driver compatible with as many languages as possible. And we provide example packages for several different languages. I recommend using whatever you are familiar with, preferably starting from our examples: https://labjack.com/support/software/examples

Mon, 10/21/2019 - 10:32

LabJack Support

Sounds like something you can

Sounds like something you can do with the U6 or T7. The T7 has various advantages, including support from our latest 3rd generation library (LJM).

https://labjack.com/products/comparison

To start with the U6, first use the Test panel in LJControlPanel to read your 4 signals. Once you have that working, you can use "config defaults" in LJCP to save your timer/counter configuration, and then close LJCP and move to LJLogUD. But first get all signals reading in the Test panel of LJCP.

For the load cell start here:

https://labjack.com/support/app-notes/bridge-circuits

Post #13 of forum topic 4376 has a tutorial.

RPM: Start by using a simple counter. Once you confirm you are getting counts from your sensors, you probably want to switch to a timer ... perhaps in Period Measurement mode.

O2: If you are having trouble with this sensor post a link to the electrical and wiring specifications so we can help.

Mon, 10/21/2019 - 16:11

Mark

Ok thanks