def main():
if len(sys.argv) != 2:
print "usage: %s chain.xml" % (sys.argv[0])
sys.exit(1)
chainfile = sys.argv[1]
import libxml2
doc = libxml2.parseFile(chainfile)
chain = ethercat.EthercatChain()
for d in doc.xpathEval("//device") + doc.xpathEval("//ethercat.EthercatSlave"):
type_names = d.xpathEval("@type_name")
if type_names:
name = type_names[0].content
revision = ethercat.parseInt(d.xpathEval("@revision")[0].content)
type_rev = "%s rev 0x%08x" % (name, revision)
else:
type_rev = d.xpathEval("@type_rev")[0].content
position = d.xpathEval("@position")[0].content
if not position.startswith("DCS"):
position = ethercat.parseInt(position)
portname = d.xpathEval("@name")[0].content
oversample = 0
oversample_xml = d.xpathEval("@oversample")
if len(oversample_xml):
oversample = ethercat.parseInt(d.xpathEval("@oversample")[0].content)
chainElem = ethercat.EthercatChainElem(type_rev, position, portname, oversample)
chain.setDevice(chainElem)
ethercat.initialise()
chain.getDeviceDescriptions()
print chain.generateMasterXml()
def main():
if len(sys.argv) != 2:
print "usage: %s chain.xml" % (sys.argv[0])
sys.exit(1)
chainfile = sys.argv[1]
import libxml2
doc = libxml2.parseFile(chainfile)
chain = ethercat.EthercatChain()
chainPorts = {} # dictionary of chainElements by port name
sdoDict = {} # sdos indexed by sdo name
for d in doc.xpathEval("//device") + doc.xpathEval(
"//ethercat.EthercatSlave"):
type_names = d.xpathEval("@type_name")
if type_names:
name = type_names[0].content
revision = ethercat.parseInt(d.xpathEval("@revision")[0].content)
type_rev = "%s rev 0x%08x" % (name, revision)
else:
type_rev = d.xpathEval("@type_rev")[0].content
position = d.xpathEval("@position")[0].content
if not position.startswith("DCS"):
position = ethercat.parseInt(position)
portname = d.xpathEval("@name")[0].content
oversample = 0
oversample_xml = d.xpathEval("@oversample")
if len(oversample_xml):
oversample = ethercat.parseInt(
d.xpathEval("@oversample")[0].content)
chainElem = ethercat.EthercatChainElem(type_rev, position, portname,
oversample)
chainPorts[portname] = chainElem
chain.setDevice(chainElem)
for d in doc.xpathEval("//ethercat.PdoAssignment"):
slave = d.xpathEval("@slave")[0].content
pdo_index = ethercat.parseInt(d.xpathEval("@pdo_index")[0].content)
smnumber = ethercat.parseInt(d.xpathEval("@smnumber")[0].content)
# name= d.xpathEval("@name")[0].content
chainPorts[slave].assignPdo(smnumber, pdo_index)
for d in doc.xpathEval("//ethercat.SdoControl"):
name = d.xpathEval("@name")[0].content
slave_name = d.xpathEval("@slave")[0].content
index = ethercat.parseInt(d.xpathEval("@index")[0].content)
sdo = ethercat.Sdo(name, slave_name, index)
chainPorts[slave_name].assignSdo(sdo)
sdoDict[name] = sdo
for d in doc.xpathEval("//ethercat.SdoEntryControl"):
asynparameter = d.xpathEval("@asynparameter")[0].content
bit_length = ethercat.parseInt(d.xpathEval("@bit_length")[0].content)
description = d.xpathEval("@description")[0].content
name = d.xpathEval("@name")[0].content
parentsdo = sdoDict[d.xpathEval("@parentsdo")[0].content]
subindex = ethercat.parseInt(d.xpathEval("@subindex")[0].content)
sdoentry = ethercat.SdoEntry(parentsdo, name, asynparameter,
description, subindex, bit_length)
ethercat.initialise()
chain.getDeviceDescriptions()
print chain.generateMasterXml()
def main():
if len(sys.argv) != 2:
print "usage: %s chain.xml" % (sys.argv[0])
sys.exit(1)
chainfile = sys.argv[1]
import libxml2
doc = libxml2.parseFile(chainfile)
chain = ethercat.EthercatChain()
chainPorts = {} # dictionary of chainElements by port name
sdoDict = {} # sdos indexed by sdo name
for d in doc.xpathEval("//device") + doc.xpathEval("//ethercat.EthercatSlave"):
type_names = d.xpathEval("@type_name")
if type_names:
name = type_names[0].content
revision = ethercat.parseInt(d.xpathEval("@revision")[0].content)
type_rev = "%s rev 0x%08x" % (name, revision)
else:
type_rev = d.xpathEval("@type_rev")[0].content
position = d.xpathEval("@position")[0].content
if not position.startswith("DCS"):
position = ethercat.parseInt(position)
portname = d.xpathEval("@name")[0].content
oversample = 0
oversample_xml = d.xpathEval("@oversample")
if len(oversample_xml):
oversample = ethercat.parseInt(d.xpathEval("@oversample")[0].content)
chainElem = ethercat.EthercatChainElem(type_rev, position, portname, oversample)
chainPorts[portname] = chainElem
chain.setDevice(chainElem)
for d in doc.xpathEval("//ethercat.PdoAssignment"):
slave = d.xpathEval("@slave")[0].content
pdo_index = ethercat.parseInt(d.xpathEval("@pdo_index")[0].content)
smnumber= ethercat.parseInt(d.xpathEval("@smnumber")[0].content)
# name= d.xpathEval("@name")[0].content
chainPorts[slave].assignPdo(smnumber, pdo_index)
for d in doc.xpathEval("//ethercat.SdoControl"):
name = d.xpathEval("@name")[0].content
slave_name = d.xpathEval("@slave")[0].content
index = ethercat.parseInt(d.xpathEval("@index")[0].content)
sdo = ethercat.Sdo(name, slave_name, index)
chainPorts[slave_name].assignSdo(sdo)
sdoDict[name] = sdo
for d in doc.xpathEval("//ethercat.SdoEntryControl"):
asynparameter = d.xpathEval("@asynparameter")[0].content
bit_length = ethercat.parseInt(d.xpathEval("@bit_length")[0].content)
description = d.xpathEval("@description")[0].content
name = d.xpathEval("@name")[0].content
parentsdo = sdoDict[d.xpathEval("@parentsdo")[0].content]
subindex = ethercat.parseInt(d.xpathEval("@subindex")[0].content)
sdoentry = ethercat.SdoEntry(parentsdo, name,
asynparameter, description,
subindex, bit_length)
ethercat.initialise()
chain.getDeviceDescriptions()
print chain.generateMasterXml()
