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#
# PROFIBUS DP - Communication Processor PHY access library
#
# Copyright (c) 2013-2016 Michael Buesch <m@bues.ch>
#
# Licensed under the terms of the GNU General Public License version 2,
# or (at your option) any later version.
#
import time
import sys
from pyprofibus.util import *
class PhyError(ProfibusError):
pass
class CpPhy(object):
"""PROFIBUS CP PHYsical layer base class.
"""
# Profibus baud-rates
BAUD_9600 = 9600
BAUD_19200 = 19200
BAUD_45450 = 45450
BAUD_93750 = 93750
BAUD_187500 = 187500
BAUD_500000 = 500000
BAUD_1500000 = 1500000
BAUD_3000000 = 3000000
BAUD_6000000 = 6000000
BAUD_12000000 = 12000000
def __init__(self, debug = False):
self.debug = debug
def close(self):
pass
# Poll for received packet.
# timeout => In seconds. 0 = none, Negative = unlimited.
def poll(self, timeout = 0):
raise NotImplementedError
def setConfig(self, baudrate = BAUD_19200):
raise NotImplementedError
def profibusSend_SDN(self, telegramData):
raise NotImplementedError
def profibusSend_SRD(self, telegramData):
raise NotImplementedError
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