ARDUINO MEGH2560 CONNECTION WITH PANASONIC FP0R C14RS PLC

hello everyone ,

i want to connect arduino megh2560 with panasonic fp0r c14rs plc for my project. after than i want to send string from plc to arduino or vice versa . and display data on arduino lcd display.

can any one help me how it works ?

i have make connection like this.

ARDUINO PLC

ttl to rs 232 converter rs232 cable with plc tx rx rx tx gnd gnd

thank you .