Many scales support a bidirectional communication mode: A command is sent from the PC to the device to query the current weight. This is also referred to as polling.
In 232key Pro, a hotkey (keyboard shortcut) is used to trigger the command. After 232key has received and processed the reply, it is entered into the target application:
The advantage of this method is that the user does not have to press a button on the scale itself.
Please note that not all scales support command mode and that you may need to configure your scale to enable it. Different scales also use different commands. As shown in the screenshot below, you can enter any command (using hexadecimal notation) or set a predefined command by clicking the Set default command button (if available). Please refer to the manual of your scale to find out which commands it supports.
In version 0.8.0 it is now possible to use individual keys such as F5 as hotkeys (previously, only key combinations including a modifier key were supported):
Some keys may be reserved by the operating system or other applications. Setting such a key will result in an error.
We’ve included a device profile for the very affordable MyWeigh UltraShip-U2 scale in this release of our software.
- Only models which appear as a virtual COM port when connected to the computer are supported (this is not the case for earlier versions of this scale):
- This scale only sends the weight when the SEND button is pressed. It is not possible to use polling:
In the Control tab in 232key Pro, you can define a keyboard shortcut (hotkey) which sends a command to the connected device:
Release 0.7.6 shows a more useful error message if you press the hotkey before a connection has been established:
Version 0.7.5 includes a device profile for Precisa scales and balances:
You can now also trigger the F1…F12 function keys from your script by using GIDEI commands.
We’ve released 232key Pro 0.7.4 with support for the NCI General Serial Communications Protocol (described in this PDF).
This protocol is not only used by NCI, Brecknell and Avery Weigh-Tronix scales (ITW brands/companies), but also others like the Ohaus Aviator 7000. One of our users has kindly confirmed that it works perfectly with his Brecknell GP250-USB scale.
To use this bi-directional protocol, first select it as the Device in the Input tab, press the Set defaults button and confirm that all settings match those of your scale:
Next, go to Control tab, enable polling with a hotkey and click on Set default command for NCI:
When you press the keyboard shortcut, 232keyPro sends the “W<CR>” command to request the weight to the scale, processes the response and types the weight at the cursor position.
Click here to visit the 232key Pro download page (fully functional trial version, expires on September 30).