Hello,
I have an issue with the printer.
I have a S7-200 PLC with 2 ports (Port1 and Port 0).
Port 1 is connected to HMI through profibus (HMI is 12-15m away from PLC)
Port 0 is connected to PC/PPI cable which is connected to 5V RS232 printer (also sitting 12-15m away from PLC)
so.. rough illustration
PLC>>PC/PPI>>long serial cable I made >>printer
It is not printing when far away, when I move it next to PLC it works fine.
So, is there a way I can fix this?
My initial thought is that, since S7-200 communicates using RS485. Is there a way where i can connect 2 wires to whichever pins that S7-200 uses and run it to a bi-directional RS232 to RS485 converter or to a PC/PPI cable sitting beside the printer. Can that not work
S7-200 >> 9pin=============== RS485 converter or PC/PPI cable>>Printer
any help will be greatly appreciated.
Thank you
I have an issue with the printer.
I have a S7-200 PLC with 2 ports (Port1 and Port 0).
Port 1 is connected to HMI through profibus (HMI is 12-15m away from PLC)
Port 0 is connected to PC/PPI cable which is connected to 5V RS232 printer (also sitting 12-15m away from PLC)
so.. rough illustration
PLC>>PC/PPI>>long serial cable I made >>printer
It is not printing when far away, when I move it next to PLC it works fine.
So, is there a way I can fix this?
My initial thought is that, since S7-200 communicates using RS485. Is there a way where i can connect 2 wires to whichever pins that S7-200 uses and run it to a bi-directional RS232 to RS485 converter or to a PC/PPI cable sitting beside the printer. Can that not work
S7-200 >> 9pin=============== RS485 converter or PC/PPI cable>>Printer
any help will be greatly appreciated.
Thank you