Testing Weighing Software with Virtual COM Ports
Simulate an indicator without hardware: create a virtual port pair, send the weight string from Terminal, and find out whether a fault lies in the software or the cable.
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Connecting a DWI-100E Indicator to a ULP50 Printer
Two wires, one output string and three indicator settings. The ASCII and hex forms of the print string, and why a mismatched form name looks like a wiring fault.