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# -*- coding: utf-8 -*-
#
# AWL simulator - CPU
#
# Copyright 2012-2013 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from awlsim.util import *
class S7CPUSpecs(object):
"STEP 7 CPU Specifications"
enum.start
MNEMONICS_AUTO = enum.item
MNEMONICS_EN = enum.item
MNEMONICS_DE = enum.item
enum.end
def __init__(self, cpu=None):
self.cpu = None
self.setConfiguredMnemonics(self.MNEMONICS_AUTO)
self.setNrAccus(2)
self.setNrTimers(2048)
self.setNrCounters(2048)
self.setNrFlags(8192)
self.setNrInputs(8192)
self.setNrOutputs(8192)
self.setNrLocalbytes(1024)
self.cpu = cpu
def assignFrom(self, otherCpuSpecs):
self.setConfiguredMnemonics(otherCpuSpecs.getConfiguredMnemonics())
self.setNrAccus(otherCpuSpecs.nrAccus)
self.setNrTimers(otherCpuSpecs.nrTimers)
self.setNrCounters(otherCpuSpecs.nrCounters)
self.setNrFlags(otherCpuSpecs.nrFlags)
self.setNrInputs(otherCpuSpecs.nrInputs)
self.setNrOutputs(otherCpuSpecs.nrOutputs)
self.setNrLocalbytes(otherCpuSpecs.nrLocalbytes)
def setConfiguredMnemonics(self, mnemonics):
if mnemonics not in (self.MNEMONICS_AUTO,
self.MNEMONICS_EN,
self.MNEMONICS_DE):
raise AwlSimError("Invalid mnemonics configuration: %d" % mnemonics)
self.__configuredMnemonics = mnemonics
self.setDetectedMnemonics(self.MNEMONICS_AUTO)
def setDetectedMnemonics(self, mnemonics):
self.__detectedMnemonics = mnemonics
def getConfiguredMnemonics(self):
return self.__configuredMnemonics
def getMnemonics(self):
if self.__configuredMnemonics == self.MNEMONICS_AUTO:
return self.__detectedMnemonics
return self.__configuredMnemonics
def setNrAccus(self, count):
if count not in (2, 4):
raise AwlSimError("Invalid number of accus")
self.nrAccus = count
if self.cpu:
self.cpu.reallocate()
def setNrTimers(self, count):
self.nrTimers = count
if self.cpu:
self.cpu.reallocate()
def setNrCounters(self, count):
self.nrCounters = count
if self.cpu:
self.cpu.reallocate()
def setNrFlags(self, count):
self.nrFlags = count
if self.cpu:
self.cpu.reallocate()
def setNrInputs(self, count):
self.nrInputs = count
if self.cpu:
self.cpu.reallocate()
def setNrOutputs(self, count):
self.nrOutputs = count
if self.cpu:
self.cpu.reallocate()
def setNrLocalbytes(self, count):
self.nrLocalbytes = count
if self.cpu:
self.cpu.reallocate()
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