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Modbus fixes to work with pymodbus 1.3.1 (#8365)

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* Fixed a bug where changing fan speed was not possible

* Bump pymodbus version to 1.3.1 to fix issue #8285

* Changed all modbus components so that they use CONF_SLAVE from const.py

* Fix checking result from a modbus transaction

* Add missing decorator

* Added modbus write coil service and added descriptions

* Removed a hiding debug print
This commit is contained in:
Sabesto
2017-07-06 22:30:23 -07:00
committed by Paulus Schoutsen
parent 9bc5cd2d4b
commit c48c2b00a8
5 changed files with 69 additions and 10 deletions
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homeassistant/components/sensor/modbus.py
+6 -3
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@@ -117,17 +117,20 @@ class ModbusRegisterSensor(Entity):
self._register,
self._count)
val = 0
if not result:
try:
registers = result.registers
except AttributeError:
_LOGGER.error("No response from modbus slave %s register %s",
self._slave, self._register)
return
if self._data_type == DATA_TYPE_FLOAT:
byte_string = b''.join(
[x.to_bytes(2, byteorder='big') for x in result.registers]
[x.to_bytes(2, byteorder='big') for x in registers]
)
val = struct.unpack(">f", byte_string)[0]
elif self._data_type == DATA_TYPE_INT:
for i, res in enumerate(result.registers):
for i, res in enumerate(registers):
val += res * (2**(i*16))
self._value = format(
self._scale * val + self._offset, '.{}f'.format(self._precision))