ProWORX Software

ProWORX was the first good PC based programming software available for Modicon logic controllers. It was produced by 'Taylor Industrial Software' a Canadian company founded by Neil Taylor. The product was later bought by Schneider in 1999.It gave you the power to program online and offline in a familiar DOS environment.
An asynchronous adaptor (RS-232 serial port or an SA85 card) was required for direct communication with programmable controllers.
A printer port and compatible printer to generate document listings.
One or more Modicon controllers.