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pingvin [2011/12/05 00:31] jap |
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| With modbus (RS-485) interface adapter and library support, it is possible to communicate with the ventilation unit. See my [[modbus|Linux modbus support]] page. | With modbus (RS-485) interface adapter and library support, it is possible to communicate with the ventilation unit. See my [[modbus|Linux modbus support]] page. | ||
| - | **Warning:** Do not try the given example master software with your ventilation unit. It looks like the checksum inspection is not implemented properly in the firmware, thus running multiple masters in the same bus (with is not defined by modbus spec.) may ruin register settings of your device. Done that already! | + | **Warning:** Do not try the given example master software with your ventilation unit. It looks like checksum inspection is not implemented properly in the firmware, thus running multiple masters in the same bus (with is not defined by modbus spec.) may cause collisions and subsequently ruin register settings of your device. Done that already! |