pymodbus TCP cliente - ejemplo

import os
from pymodbus.client.sync import ModbusTcpClient

cliente = ModbusTcpClient('127.0.0.1','5020')
#---------------------------------------------------------------------------# 
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

#---------------------------------------------------------------------------# 
os.system('clear')

print "Read Coils"
request = cliente.read_coils(0x0,0x8,unit=1)
print request.bits[0]
print request.bits[1]
print request.bits[2]
print request.bits[3]
print request.bits[4]
print request.bits[5]
print request.bits[6]
print request.bits[7]


print "Read Discrete Input"
request = cliente.read_discrete_inputs(0x0,0x8,unit=1)
print request.bits[0]
print request.bits[1]
print request.bits[2]
print request.bits[3]
print request.bits[4]
print request.bits[5]
print request.bits[6]
print request.bits[7]


print "Read Holding Registers"
request = cliente.read_holding_registers(0x0,0x7,unit=1)
print request.registers


print "Read Input Registers"
request = cliente.read_input_registers(0x0,0x7,unit=1)
print request.registers

cliente.close()

---

Generated by GNU Enscript 1.6.5.90.

pymodbus TCP server - ejemplo

#!/usr/bin/env python

#---------------------------------------------------------------------------# 
import os
from pymodbus.server.async import StartTcpServer
from pymodbus.device import ModbusDeviceIdentification
from pymodbus.datastore import ModbusSequentialDataBlock
from pymodbus.datastore import ModbusSlaveContext, ModbusServerContext
from pymodbus.transaction import ModbusRtuFramer, ModbusAsciiFramer

#---------------------------------------------------------------------------# 

import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

os.system('clear')
#---------------------------------------------------------------------------# 
# di - entradas discretas
# co - coils 
# hr - holding registros
# ir - input registros

hr01 = 100
hr02 = 110
hr03 = 120
hr04 = 130
hr05 = 140
hr06 = 150
hr07 = 160
hr08 = 170

ir01 = 100
ir02 = 110
ir03 = 120
ir04 = 130
ir05 = 140
ir06 = 150
ir07 = 160
ir08 = 170

Reg_DI = [1,0,1,1,1,1,1,0,1]
Reg_CO = [1,0,1,0,1,0,1,0,1]
Reg_HR = [hr01, hr02, hr03, hr04, hr05, hr06, hr07, hr08]
Reg_IR = [ir01, ir02, ir03, ir04, ir05, ir06, ir07, ir08]


store = ModbusSlaveContext(
        di=ModbusSequentialDataBlock(0, Reg_DI),
        co=ModbusSequentialDataBlock(0, Reg_CO),
        hr=ModbusSequentialDataBlock(0, Reg_HR),
        ir=ModbusSequentialDataBlock(0, Reg_IR))

context = ModbusServerContext(slaves=store, single=True)

#---------------------------------------------------------------------------# 
identity = ModbusDeviceIdentification()
identity.VendorName  = 'Pymodbus TCP'
identity.VendorUrl   = 'http://www.chispolinux.blogspot.com'
identity.ProductName = 'Simulador de dispositivos by JMQ'
identity.MajorMinorRevision = '1.0'

#---------------------------------------------------------------------------# 
StartTcpServer(context, identity=identity, address=("localhost", 5020))

---

Generated by GNU Enscript 1.6.5.90.

Pymodbus rtu cliente serie

import os
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
#---------------------------------------------------------------------------# 
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

#---------------------------------------------------------------------------# 
cliente = ModbusClient(method='rtu', port='/dev/ttyUSB0', timeout=1, stopbits = 1, bytesize = 8,  parity='N', baudrate= 9600)
cliente.connect()

os.system('clear')

print "Read Coils"
request = cliente.read_coils(0x0,0x8,unit=1)
print request.bits[0]
print request.bits[1]
print request.bits[2]

print "Read Discrete Input"
request = cliente.read_discrete_inputs(0x0,0x8,unit=1)
print request

print "Read Holding Registers"
request = cliente.read_holding_registers(0x0,0x7,unit=1)
print request.registers


print "Read Input Registers"
request = cliente.read_input_registers(0x0,0x7,unit=1)
print request.registers

---

Generated by GNU Enscript 1.6.5.90.

Pymodbus rtu maestro serie

#!/usr/bin/env python

#---------------------------------------------------------------------------# 
from pymodbus.server.async import StartSerialServer
from pymodbus.device import ModbusDeviceIdentification
from pymodbus.datastore import ModbusSequentialDataBlock
from pymodbus.datastore import ModbusSlaveContext, ModbusServerContext
from pymodbus.transaction import ModbusRtuFramer, ModbusAsciiFramer

#---------------------------------------------------------------------------# 
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

#---------------------------------------------------------------------------# 
# di - entradas discretas
# co - coils 
# hr - holding registros
# ir - input registros

hr01 = 100
hr02 = 110
hr03 = 120
hr04 = 130
hr05 = 140
hr06 = 150
hr07 = 160
hr08 = 170

ir01 = 100
ir02 = 110
ir03 = 120
ir04 = 130
ir05 = 140
ir06 = 150
ir07 = 160
ir08 = 170

Reg_DI = [1,0,1,1,1,1,1,0,1]
Reg_CO = [1,0,1,1,1,1,1,0,1]
Reg_HR = [hr01, hr02, hr03, hr04, hr05, hr06, hr07, hr08]
Reg_IR = [ir01, ir02, ir03, ir04, ir05, ir06, ir07, ir08]


store = ModbusSlaveContext(
        di=ModbusSequentialDataBlock(0, Reg_DI),
        co=ModbusSequentialDataBlock(0, Reg_CO),
        hr=ModbusSequentialDataBlock(0, Reg_HR),
        ir=ModbusSequentialDataBlock(0, Reg_IR))

esclavos = {
            0x01: store,
            0x02: store,
            0x03: store,
            0x04: store,
            0x05: store,
            0x06: store,
            0x07: store,
            0x08: store,
           }

context = ModbusServerContext(slaves=esclavos, single=False)

#---------------------------------------------------------------------------# 
identity = ModbusDeviceIdentification()
identity.VendorName  = 'Pymodbus SERIE'
identity.VendorUrl   = 'http://www.chispolinux.blogspot.com'
identity.ProductName = 'Simulador de dispositivos by JMQ'
identity.MajorMinorRevision = '1.0'

#---------------------------------------------------------------------------# 
StartSerialServer(context, identity=identity, port='/dev/ttyUSB1', baudrate='9600', framer=ModbusRtuFramer)

---

Generated by GNU Enscript 1.6.5.90.

CVM 96 Python MODBUS

import os
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
#---------------------------------------------------------------------------# 
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

#---------------------------------------------------------------------------# 
client = ModbusClient(method='rtu', port='/dev/ttyUSB0', timeout=1, stopbits = 1, bytesize = 8,  parity='N', baudrate= 9600)
client.connect()

os.system('clear')

request = client.read_input_registers(0x0,0x1E,unit=1)
print request.registers

print "V1    :", request.registers[0], request.registers[1]
print "A1    :", request.registers[2], request.registers[3]
print "KW1   :", request.registers[4], request.registers[5]
print "Kvar1 :", request.registers[6], request.registers[7]
print "PF1   :", request.registers[8], request.registers[9]
print ""
print "V2    :", request.registers[10], request.registers[11]
print "A2    :", request.registers[12], request.registers[13]
print "KW2   :", request.registers[14], request.registers[15]
print "Kvar2 :", request.registers[16], request.registers[17]
print "PF2   :", request.registers[18], request.registers[19]
print ""
print "V3    :", request.registers[20], request.registers[21]
print "A3    :", request.registers[22], request.registers[23]
print "KW3   :", request.registers[24], request.registers[25]
print "Kvar3 :", request.registers[26], request.registers[27]
print "PF3   :", request.registers[28], request.registers[29]

---

Generated by GNU Enscript 1.6.5.90.