S
Dear All,
We are having Fr-6 gas turbines operating in combined cycle mode. The units are remotely controlled thru DCS via MODBUS communication. The remote <I> is connected with a serial printer; the serial cable connected from the "digiboard" card of the <I>. I understand that the digiboard is for MODBUS communication. Previous experience with the default printer (OKIDATA - Microline series) supplied with the machine is that; after 1 or 2 yrs of working these printers starts malfunctioning. Typically, the printers start printing garbage towards the end of printing the trip report. Even when large amount of data is to be printed, then at the end of the print,the alarm bar and menu targets are not printed correctly.
We tried to connect a parallel printer but it would not work since the digiboard would accept only a serial printer. However, we tried to connect the parallel printer to the available parallel port on the remote <I> (with due configuration changes in the IO_PORT.dat file) but would not work.
Meanwhile, the parallel printer works well when connected to the local <I> (since there is no digiboard here).
Could anyone suggest a method to connect commercially available dot matrix printers and make them work on a remote <I> with MODBUS?
Thanks in anticipation.
SRP
We are having Fr-6 gas turbines operating in combined cycle mode. The units are remotely controlled thru DCS via MODBUS communication. The remote <I> is connected with a serial printer; the serial cable connected from the "digiboard" card of the <I>. I understand that the digiboard is for MODBUS communication. Previous experience with the default printer (OKIDATA - Microline series) supplied with the machine is that; after 1 or 2 yrs of working these printers starts malfunctioning. Typically, the printers start printing garbage towards the end of printing the trip report. Even when large amount of data is to be printed, then at the end of the print,the alarm bar and menu targets are not printed correctly.
We tried to connect a parallel printer but it would not work since the digiboard would accept only a serial printer. However, we tried to connect the parallel printer to the available parallel port on the remote <I> (with due configuration changes in the IO_PORT.dat file) but would not work.
Meanwhile, the parallel printer works well when connected to the local <I> (since there is no digiboard here).
Could anyone suggest a method to connect commercially available dot matrix printers and make them work on a remote <I> with MODBUS?
Thanks in anticipation.
SRP