cmet said:hi guys, I have to write a program to trigger and recieve data from a barcode reader via a serial interface (rs232) module plugged on et200s. The 3964 procedure is used. Anyone know the way to do it?
Thanks
jolio ST said:cmet
I could suggest to you to seek help from Siemens Singapore. let me know if you need the contact infomation then. I had been introduced by a system engineer at siemens. maybe he could help.
regards
Sherine
I did once using direct RS232 into the WAGO plc. they have a module that reads data using RS232C (model 750-650). but the programming is very tedious. I did this procedure using structured text, to convert integer to string and then hex to dec and vice versa, request receive/send, checksum calculation,broadcast etc just so it is able to read from the CCM and displayed onto a HMI via RS485. I hope I will never have to do another again..just kidding.
regards
Sherine T.