6/25/2018 7:33 PM | |
Posts: 9 Rating: (0) |
Hello guys. I have similar problem. I need to communicate between S7-200 PLC (CPU226, with two serial ports) and printer LINX 4900 (has a RS232 port) 1) I use RS485/RS232 converter DIGITUS DA-70161. 2) I am succesfully able to communicate between PC and PLC (program similar hyperterminal) and 3) I am also able to commnicate from PC to printer LINX (also program similar hypertermina) 4) But unfortunately I am not able to communicate between PLC and printer LINX dirrectly using this converter. 5) I also tried original PC/PPI cable from siemens - same result. 6) Protocol I used on S7-200 is Freeport (port 1). 7) Behind RS485/RS232 converter I am using secondary cable like description I attached in picture. This diagram is by recommendation by LINX manufacturer. 8) I am using those comm. parameters. 9600kbps, 8data bits, 1 stop bit, no parity, no CRC, RTS/CTS flow control on printer side (there is no possibility to switched it off totaly) Do you have any recommendation? Where can be a problem if comm PLC <-> PC is OK, PC <-> Printer is OK, but PLC <-> Printer is NOT POSSIBLE? Both has same RS232 interface, where can be some difference? Thanks a lot Tomas ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 6/26/2018 12:06:26 PMNew subject after splitting |
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