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ECR Weight Scale Hardware Requirements:
RS232C Serial Port Interface.
RS232C Serial Port on the computer.
Plexis POS Supported Weight Scale Model.

Plexis POS supports Weight Scales connected to a RS232C Serial Port. Use a true RS232C Serial Port Adapter. Many Consumer based home computers that customers try to use in a business environment do not come standard with genuine RS232C serial ports. USB serial ports are not true RS232C. USB to Serial Port converters tend to truncate data depending on the driver and chip set. If you use a USB to Serial converter make sure that it supports true RS232C standards, otherwise the weight scale may not work properly.

Point of Sale Business Computers are typically designed to have genuine RS232C serial ports installed and will work perfectly with our supported ECR weight scales.

Do your interface connectors look like the ones below? If not your scale may not be compatible with Plexis POS.

RS232C Scale Side
RS232 Serial Port Connector Scale Side
     RS232C Computer Side
RS232 Serial Port Connector Computer Side
Plexis POS Supports many of the NCI Series ECR and other industry Standard Weight Scales.
Consult our Supported Hardware page for details HERE.

Setting Up an ECR Weight Scale:
Test the weight scale through the Plexis POS interface by choosing from the Main System Menu: Utilities, Diagnostics then Weight Scale. Configure the Weight Scale port so that it matches the proper Serial Port settings that the scale is set to. Press F2 Start and verify you have had a successful test. Once successfully tested choose Save. If you do not get a successful test consult with a hardware expert to assist in properly installing a supported weight scale on your computer.

Proper Output Example for an NCI 6720 ECR Mode:
Weight Scale Screen:
Plexis Point Of Sale - Weight Scale at the Sales Screen
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ECR Weight Scale Test:
Plexis Point Of Sale - Setting up a Weight Scale
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UN-Supported (wrong) Output for an NCI 6720 ECR Mode:

* This is an example of a serial 4 bit scale, scales must have an 8 Bit serial interface.

Note: Some scales send large packets of data all at one time. These scale formats may only be reliably used with a quality HIGH SPEED RS232 Serial Interface.

Suggested Solutions:
1. Replace your Serial Port adapter with a HIGH SPEED Serial Adapter or Converter.
2. As a possible alternative, go to the Windows Control Panel under System, Hardware, turn OFF FIFO and LIFO support on the serial port you are using. Contact your computer hardware expert for more details if needed.

Note :
Plexis Software Systems does not sell or support computer systems, networks POS Peripherals or any other hardware.
We can provide support for our software applications only.
POS Hardware Suggestion List (click here)

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