I would like to share with you a solution that allows BarTender to be compatible with any types of scales; USB postal scale with no driver, RS232 scale in continous mode, scale with bidirectional protocol...

To do this I use the software "Bill Redirect" from the company BillProduction.com (a shareware at 35$ USD) this software acts as a driver for your scale and can send on demand to BarTender the weight.

Communication Diagram example for a USB Mettler Toledo PS series:

[Mettler T. PS 60]---(USB)--->[BillRedirect Software]---(TCP)--->[BarTender Software]

BillRedirect Configuration:

- Disable all section except: Serial Port and TCPIP

- In Serial Port Configuration check the option: USB Scale Without Serial driver

- In Serial Port Configuration select the option "format": {lbs}

- In Serial Port Configuration select the option "Send weight": On demand

- In TCPIP Configuration, chose the option: Server

*** Take in note the IP ADDRESS and the PORT and use this configuration in BarTender

- In Data Filtering Configuration ADD in section Search and Replace this rule:

     Search: {TCP_RX}

     Replace by: {TX_TCP[{ASCII:2}{MULTIPLY[{USB_TX[REQWEIGHT]},1,000.00]}{ASCII:13}]}

*** This software can emulate any kind of scale but in this example I use the MT PS 60 lbs FORMAT

- In main screen, click on button: Save Configuration

*** Use the Debugger section to see the data received and sending to BarTender

Communication Diagram example for a RS232 Continuous data sreaming scale:

[Continous Scale]---(RS232)--->[BillRedirect Software]---(TCP)--->[BarTender Software]

BillRedirect Configuration:

*** Power off your scale during the configuration.

- Disable all section except: Serial Port, Virtual Keyboard and TCPIP

- In Serial Port Configuration enter the Bauds, Parity, DataBits of your scale

- In Serial Port Configuration enter in Timeout: 999

- In Serial Port Configuration enter in ETX: 10

*** Usually the string sent by the scale is finished by a character ETX: 10 but sometimes it's 13 or  3 it depend of your scale brand and model.

- In TCPIP Configuration, chose the option: Server

*** Take in note the IP ADDRESS and the PORT and use this configuration in BarTender

- In section Virtual Keyboard click on ADD

*** The current weight is show on this button but to hide this button just enter on the button in field "Window Title": HideMe

- In Data Filtering Configuration ADD in section Search and Replace this rule:

     Search: {SERIAL_RX}

     Replace by: {TX_BUTTON_TXT[0,RX_DATA]}

- In Data Filtering Configuration ADD in section Search and Replace this rule:

     Search: {TCP_RX}

     Replace by: {TX_TCP[{ASCII:2}{MULTIPLY[{BUTTON_TXT[0]},1,000.00]}{ASCII:13}]}

*** This software can emulate any kind of scale but in this example I use the MT PS 60 lbs FORMAT then in BarTender use format Mettler Toledo PS 60 via TCP

- In main screen, click on button: Save Configuration

*** Use the Debugger section to see the data received and sending to BarTender

Note: Billproduction company offers free technical support BillProduction.com

 
I hope I have helped you !