V
dear sir/madam,
I am using the usb to serial port converter
(ft8u232,from: "www.ftdi.co.uk":http://www.ftdi.co.uk ) to communicate to the PLC (model: idec,siemmen,mitsubishi....), my problem is when I
using the protocol convertor plug in to the usb-serial convertor and link to the PLC,it can't detect the serial port (I try many unit & diference model) , some of the PLC software still running uder DOS ver,they are not support DOS, according to the supplier say,I must write a driver which will allow to communicate in DOS (MSDOS comms interrupt int14,what it mean?, to develop the useful link
is "http://people.freenet.de/dieterp/":http://people.freenet.de/dieterp/ see USB 4 DOS section), what can I do now ?,I am waste a lot of time to
test & solve this problem, still no result ,PLS help me. THANK YOU !
best regard,
[email protected]
I am using the usb to serial port converter
(ft8u232,from: "www.ftdi.co.uk":http://www.ftdi.co.uk ) to communicate to the PLC (model: idec,siemmen,mitsubishi....), my problem is when I
using the protocol convertor plug in to the usb-serial convertor and link to the PLC,it can't detect the serial port (I try many unit & diference model) , some of the PLC software still running uder DOS ver,they are not support DOS, according to the supplier say,I must write a driver which will allow to communicate in DOS (MSDOS comms interrupt int14,what it mean?, to develop the useful link
is "http://people.freenet.de/dieterp/":http://people.freenet.de/dieterp/ see USB 4 DOS section), what can I do now ?,I am waste a lot of time to
test & solve this problem, still no result ,PLS help me. THANK YOU !
best regard,
[email protected]