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| == Modbus Control commands for R6: ==
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| This commands give you the possibility to control the relays on the R6 via a modbus command send as a hex-file in a tcp stack.
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| It is easy to connect the R6 module to a Barix device with a RS485 connector. You have to wire Pin6 (A) and Pin9 (B) of the DB9 connector to Pin2 (A) and Pin3 (B) of the J1 connector on the R6.
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| Additional you have to power up the R6 on Pin4 (+) and Pin5 (-) with an external power supply.
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| The serial settings for the RS485 (Serial 2) in the device must set to 19200 Bd, 8E1 (8 Databit, parity=even, 1 Stopbit), Handshake to RS485 direction control and local port to 502.
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| Now it is possible to send a hex-file, which includes the modbus command, via tcp to port 502 of the device. This can be done with the NetCat Application (nc ''ip-device''<nowiki> < </nowiki>''filename'' ).
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| {| class="wikitable"
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| !
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| !
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| ! Modbusaddress
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| ! Single Coil
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| ! Address Hi
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| ! Address Lo
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| ! Value Hi
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| ! Value Lo
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| ! CRC Lo
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| ! CRC Hi
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| | Relay 1,Set ,00,05,00,00,FF,FF,CD,AB
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| | ,Reset,00,05,00,00,00,00,CC,1B
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| | Relay 2,Set ,00,05,00,01,FF,FF,9C,6B
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| | ,Reset,00,05,00,01,00,00,9D,DB
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| | Relay 3,Set ,00,05,00,02,FF,FF,6C,6B
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| | ,Reset,00,05,00,02,00,00,6D,DB
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| | Relay 4,Set ,00,05,00,03,FF,FF,3D,AB
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| | ,Reset,00,05,00,03,00,00,3C,1B
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| | Relay 5,Set ,00,05,00,04,FF,FF,8C,6A
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| | ,Reset,00,05,00,04,00,00,8D,DA
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| | Relay 6,Set ,00,05,00,05,FF,FF,DD,AA
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| | ,Reset,00,05,00,05,00,00,DC,1A
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| |}
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| Please note: It is necessary to calculate a crc-check-sum for each command and add it to the command itself.
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| Here you can find a online crc-calculator:
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| [http://www.lammertbies.nl/comm/info/crc-calculation.html http://www.lammertbies.nl/comm/info/crc-calculation.html]
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