?????? ???? ??????? ????????? ????? RS-485 ????????? ????? Modbus

?????? ???? ??????? ????????? ????? RS-485 ????????? ????? Modbus

?????? ????? ??????? ??? ?????? ??? ????????? ??????? ?? ?????? ??? ?? ??? ??????? ?????? ??????. ??????? ??? ???? ?????? ??????? ????????? ????? ??????? ????? ????????? ??????? ??????? ?????. ??? ?????? ?????? ??????? ????????? ????????? ???? ????? ?????? ??? ????????? ?????? ?????? ???????? ??? ??? ???? ???? ???? ??????? ??? ?????? ??? ?????????.

1. ??? ????????? RS-485 ? Modbus

RS-485: ????? ?? ??? ??? ???????? ??? ??????? ????????. ????? ??????? ????????? ?? ??????? ?? ????? RS232. ?????? ?????? ??????? ????????? ?????? ????? ????????? ???????? ??????? ?????????????? ?????? ?? ??????? ??? ???? ??? ???? ????? ?? ???????. ?????? ??? ???? ????? ????? RS232 ??? ??????? ?? ???? ??? ????? ??? ??????? ????? ??????? ??? ?????? ????? ??????? ???? ?????? ??? ?? ?? ??? ???????? ??????? ??????? ?????. ??? ???? ??? ???????? ??? ?? ???? RS-485.

????? ????? RS-485 ??? ??? ??????? ????????? ??? ???? ?? ??? ???? ???? ????? ??????? ?? ????? ???????? ????? ?? ??? ????? ??????? ??? 1200 ???? ??? ???? ???? ?????? ????? ????? ???????? ?????? ???? ??????.

???????? ??????: ?? ????? ??????? ????????? ?? ????????? ????????? ???? ???? ?????? ??????? ???????? ?????? ???????? ???????? ??? 1979? ???????? ??? ?????????? ?????? ?? ?????? ?? ??????? ??????? ??? RS-485 ?? ???????. ??????? ???? ??? ???????? ?????? ?????? ??????? ??? RS-485.

??????? ??????? ??? ???????? RS-485 ????????? Modbus

?????? RS-485 ?? ???????? ???? ???????? ????? Modbus ?? ???????? ???? ????????? ???? ???? ???? ???????? ??? ???????? ???? ??????? ??? ????? ?????????. ??????? ???? Modbus ?????? ??????? ??????? ??????? ???????? ???? ??? ??? ?????? ??????? ??????? ??? ?????? ??????. ??? ???? Modbus ????? ????? ???????? ??? ????????? ???????? ???????? ?????? ???? ??? ????? ???????? ????? ???????. ????? ?????? ???? ??????? ???? ??????????? ???? ?????? ??????? ???????? ???????? ?? ????? ??????? ???????. ????? ???????? Modbus ?????????? RTU ?ASCII ?TCP. ??? ?????? ???? MODBUS-RTU ?????? ?????? ??????? ?????????.

1. ??????? ??? RS-485

RS-485 ?? ????? ???? ??????? ?????????? ?????? ??????? ?????????? ?? ???? ???? ?????? ????? ??????. ??? ????? ????? ????? ????????? ?????? ????? ????????????. ???? ????? ????????? ??????? ???? ?????? ??? ??????? ??? ???????? ?????? ????? ?? ???? ???????? ??????? ??? ????? ??? ????? ????????? ?????. ??? ?????? RS-485 ?? ??????? ??????? ??????? ?????? ????? ????? ?????? ??????.

????? ???????? RS-485 ??? ????? ?? ?????????: ?????? ??????? ??????? ???????. ????? ???? ??????? ??????? ??? ??????? ?? ???? ??? ????? ??? ???? ????????? ??????? ????? ??????? ???? ??????? ???????? ??? ???? ????. ????? ??? ?????? ??? ???? ???? ????????? ??? ???? ????? ?? ??? ??? 32 ???? ??? ??? ??????.

2- ???????? ????? Modbus

???????? ?????? ?? ??? ?????? ??????? ?? ????? ?????? ???????????. ?? ???? ??? ??????????? ?????? ????? ?????? ??????? ???? ?????? ????? ???? ????? ???? ??????? ?????? ??? ?????? (??? ????????). ??? ???? ??????? ??????? ??????. ?????? ????? ??? ????? ?????? ????????? ?? ???? ????? ?????? ????? ?????? ???????? ????????. ????? ??? ?????????? ???? ??????? ???? ????? ????? ?????? ?????? ????? ??????????? ??? ????? ?? ??? ?????? ???? ?????? ?? ??????. ??? ??? ????? ??? ???? ?????? ?????? ??? ??????? ??????? ?????? ????????? ?????? ??? ???????? ?????? ?????? ??????? ????????. ??? ???? ??? ?????????? ??????? ?????? ????? ?????? ???? ???????.

????? ???????? ?????? ???????? ???????:

(1) ?????? ??????? ???? ?????????? ??????? ???????? Modbus ?????? ?????? ??? ??? ???? ?????? ??? ????? ???? ??????? ???????.

(2) ???? ????????? Modbus ??? ?????? ?????? ?? ???????? ??????????? ??? RS-232 ? RS-485 ??? ??? ???? ????? ????? ???? ??? ????? ??????? ??? ????? ??????? ???????? ??????? ?????????? ??? ??? ???.

(3) ????? ????? ???? Modbus ???????? ????????? ?????? ?????. ??? ??? ????????? ?????????? ???? ??????? ????????.

??? ???? ??? ???? ????? ???? ????????? ?? ???????? ???? ?????? ?????? ?? ????? ???????? ????? ???????? ?? ??????? ???? ?????? ?????? ??????? ?? ??? ??????? ????????.

???? ??? ???? ??????? ?? ????? ??????? ??????? ?? ?????? ??????? ???? ???? ?????? ???? Rika Sensors ????? ?? ????????.

????? ???? ????? ???? ??????????? ??????????? ???????? ????? ???? ???? ?????? ????? ?? ????? ??? ???????.