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changes for xy-md02

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This commit is contained in:
Wolfgang Hottgenroth 2019-07-08 09:28:33 +01:00
parent 75ddb6069a
commit 756ba2175d
3 changed files with 22 additions and 11 deletions
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6
snippets/test6b.py
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@ -2,14 +2,16 @@ from pymodbus.client.sync import ModbusSerialClient
import RS485Ext
import time
ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, stopbits=1)
ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=9600, stopbits=1)
client = ModbusSerialClient(method='rtu')
client.socket = ser
client.connect()
try:
result = client.read_holding_registers(address=0x9c48, count=1, unit=4)
result = client.read_holding_registers(address=0x9c43, count=1, unit=4)
# result = client.read_holding_registers(address=0x0102, count=1, unit=5)
# result = client.read_input_registers(address=0x0002, count=1, unit=5)
# result = client.read_discrete_inputs(address=0x0000, count=1, unit=4)
print(result)
print(result.registers)

6
snippets/test6c.py
View File

@ -2,15 +2,15 @@ from pymodbus.client.sync import ModbusSerialClient
import RS485Ext
import time
ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, stopbits=1)
ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=9600, stopbits=1)
client = ModbusSerialClient(method='rtu')
client.socket = ser
client.connect()
try:
# result = client.write_register(address=0x0000, unit=4, value=1)
result = client.write_coil(address=0x0000, unit=4, value=1)
result = client.write_register(address=0x9c47, unit=4, value=0x8000)
# result = client.write_coil(address=0x0000, unit=4, value=1)
print(result)
except Exception as e:
print("ERROR: %s" % str(e))

21
snippets/test7.py
View File

@ -54,16 +54,18 @@ reqs = [
# ModbusRequestDefinition(1, 0x2000, 2, 'F', 'Voltage'),
# ModbusRequestDefinition(1, 0x2020, 2, 'F', 'Frequency'),
# ModbusRequestDefinition(1, 0x2060, 2, 'F', 'Current'),
ModbusRequestDefinition('H', 3, 0x0004, 2, 'RF', 'Resistance Channel 1'),
ModbusRequestDefinition('H', 3, 0x000C, 2, 'RF', 'Temperature Channel 1'),
ModbusRequestDefinition('H', 3, 0x0014, 2, 'RF', 'Resistance Channel 2'),
ModbusRequestDefinition('H', 3, 0x001C, 2, 'RF', 'Temperature Channel 2'),
# ModbusRequestDefinition('H', 3, 0x0004, 2, 'RF', 'Resistance Channel 1'),
# ModbusRequestDefinition('H', 3, 0x000C, 2, 'RF', 'Temperature Channel 1'),
# ModbusRequestDefinition('H', 3, 0x0014, 2, 'RF', 'Resistance Channel 2'),
# ModbusRequestDefinition('H', 3, 0x001C, 2, 'RF', 'Temperature Channel 2'),
ModbusRequestDefinition('D', 4, 0x0000, 1, '', 'Discrete Input'),
ModbusRequestDefinition('I', 5, 0x0001, 1, '', 'Temperature'),
ModbusRequestDefinition('I', 5, 0x0002, 1, '', 'Humidity'),
]
def getSerial():
return RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, stopbits=1,
return RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=9600, stopbits=1,
timeout=1)
client = ModbusSerialClient(method='rtu')
@ -71,7 +73,7 @@ client.socket = getSerial()
client.connect()
delay = 0.05
period = 1.0
period = 0.5
while True:
for req in reqs:
@ -94,6 +96,13 @@ while True:
if type(result) in [ExceptionResponse, ModbusIOException]:
raise ModbusException(result)
print("{0}: {1!s}".format(req.label, result.bits))
elif req.kind == 'I':
result = client.read_input_registers(address=req.address,
count=req.count,
unit=req.unit)
if type(result) in [ExceptionResponse, ModbusIOException]:
raise ModbusException(result)
print("{0}: {1}".format(req.label, result.registers))
except ModbusException as e:
print("ERROR when querying '{0}': {1!s}".format(req.label, e))
if client.socket is None: