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This file is part of eRCaGuy_dotfiles: https://github.com/ElectricRCAircraftGuy/eRCaGuy_dotfiles

Remote-controllable power supplies

There are a variety of power supplies that can be controlled remotely. They might be controlled over Ethernet, serial, WiFi, or USB, for example. You could then remote into a machine via ssh, NoMachine, RDP (or Remmina), etc., and control the power supply from there.

Here are two that I've used:

1. Teledyne LeCroy T3PS3000

See: $815: https://www.digikey.com/en/products/detail/teledyne-lecroy/T3PS3000/9598577

Works over TCP/IP Ethernet, port 5025.

Example commands:

# Turn channel 1 OFF
printf '%s' 'output ch1,off' | timeout 0.2 nc 192.168.0.1 5025  

# Turn channel 1 ON
printf '%s' 'output ch1,on' | timeout 0.2 nc 192.168.0.1 5025

For many more examples and details, see this file: ../git & Linux cmds, help, tips & tricks - Gabriel.txt, and search the file for "T3PS3000" and "5025".

2. PowerUSB

See: $120~$180: https://pwrusb.com/collections/all

Ex:

  1. Basic: https://pwrusb.com/collections/all
  2. Digital IO: https://pwrusb.com/products/powerusb-digital-io

All of the devices on the main page are controlled over USB. I think they may register themselves as USB HID devices (similar to keyboards, mice, joysticks, game controllers, etc.). They provide a GUI and command-line tool to control them. Get the software here: https://pwrusb.com/pages/downloads. They support Windows, Mac, and Linux.

Ex: for Windows:

Download the "Windows software", extract it, and run Setup.exe to install it. It installs into C:\Program Files (x86)\PowerUSB. A bunch of PDF user manuals also get placed there. The command-line tool is here: C:\Program Files (x86)\PowerUSB\PwrUsbCmd.exe. A powerusb GUI tool is also installed into the Start menu.

For example usage, see: power_supply_PowerUSB_Windows_cycle_power.sh.

That Bash script, as well as the commands below, are meant to be run on Windows in a Linux-like terminal such as Git Bash or MSYS2. See my MSYS2 setup instructions here.

Note that the PwrUsbCmd.exe tool is pretty clunky and non-standard. But, it works.

Here are some example commands. For all commands below, you must first run this in your terminal:

PwrUsbCmd="/c/Program Files (x86)/PowerUSB/PwrUsbCmd.exe"

Help menu:

# help menu: type this command and then press Enter **twice** (which is odd)
"$PwrUsbCmd"

Example help menu output:

Usage: pwrusbcmd [0,1] [0,1] [0,1] p c (0 for off and 1 for on)
Up to 15 outlets. Must be multiple of 3 for up to 5 PowerUSBs
'p' for pause at the end of command
'c' for power consumed in primary PowerUSB unit
Eg. pwrusbcmd 1 0 0 (will switch on outlet1 and switch off outlet2 & 3)
Eg. pwrusbcmd 1 1 1 c (will siwtch-on all outlets and report power consumption
pwrusbcmd s [1-5] [1-3] [0,1] (Single port on-off. [Unit] [Port] [On-Off])
Eg. pwrusbcmd s 2 2 1 (will switch on the outlet 2 in PowerUSB unit 2)
WATCHDOG: pwrusbcmd w [x] [y] [z] (Will not work with other parameters)
x=Time between heartbeats(hb), y:Number of hb misses. z:cpu reset time(sec)
Starts watchdog and start sending hb. Esc to stop monitor and quit
Eg. pwrusbcmd w 60 3 20. (Send hb every 60sec. Reset for 20 sec if 3 hb fail
DIGITAL IO PLC Controller Options
Output: pwrusbcmd o [0,1] [0,1] [0,1].(Sets the 3 Digial Output States)
Input : pwrusbcmd i. (Returns the status of 4 digital inputs. 0 or 1)
Trig  : pwrusbcmd t [0 or 1-4] [0,1] [-3-32000]..(6 time) [2222]..(6 time)
Sets trigger actions. Cannot use with other params. See manual for details
First Param: 0-Clear Table, -1-OffPLC, -2-OnPLC, 1-4: Input Port Action
Action: -3-noAction -2-toggle -1-on 0-off 1-32K-secs on
Addional Condition [2222] 2-dont care, 1-has to be on, 0-has to be off
Eg. pwrusbcmd o 1 0 1. (Sets outlet 1 & 3 on and outlet 2 to off
Eg. pwrusbdmd i (Will return 1 1 0 0, if outlet 1 & 2 are on and 3 & 4 are off
Enter to continue

Basic outlet control commands:

# Note that you can control up to 15 outlets via 5 connected PowerUSB devices
# (3 outlets per device).

"$PwrUsbCmd" 0 0 0  # outlet1 outlet2 outlet3  OFF

"$PwrUsbCmd" 1 1 1  # outlet1 outlet2 outlet3  ON

"$PwrUsbCmd" c  # read the power 'c'onsumed
# Example output:
#
#       PowerUSB Connected. Number of Devices:1 Model: 2. Version:3.3
#       Power Consumed now(ma):250. Total Power Consumed(kwh)(120VAC):  3.417

That's the gist of it. For more info, look inside the PowerUSB-Basic-UserManual.pdf, which is inside of the extracted WindowsFiles.zip file, as well as inside the installed location here: C:\Program Files (x86)\PowerUSB\PowerUSB-Basic-UserManual.pdf. See especially the section titled "3. COMMAND-LINE APPLICATION".

There are a bunch of other commands, as shown in the help menu above too.

Also look at power_supply_PowerUSB_Windows_cycle_power.sh.

3. Digital Loggers, Inc. (DLI) Web Power Switch Pro

Purchase:

  1. $189: https://dlidirect.com/products/new-pro-switch
  2. $189 on Amazon: https://amzn.to/4gBBnoe

REST API to remotely control it: https://www.digital-loggers.com/rest.html

Use curl on Linux, or via Git Bash on Windows, to control it via a bash shell script.

The Amazon listing above says:

Secure web server with SSL, SSH, HTTPS, SNMP, REST API, MODBUS

So, you may be able to use ssh commands to control it too, in addition to the REST API. Not sure. I'll need to investigate more later.