20 lines
457 B
Python
20 lines
457 B
Python
|
from pymodbus.client.sync import ModbusSerialClient
|
||
|
|
import RS485Ext
|
||
|
|
import time
|
||
|
|
|
||
|
|
ser=RS485Ext.RS485Ext(port='/dev/ttyAMA0', baudrate=1200, 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)
|
||
|
|
print(result)
|
||
|
|
except Exception as e:
|
||
|
|
print("ERROR: %s" % str(e))
|
||
|
|
|
||
|
|
client.close()
|
||
|
|
|