def key_exit():
opc_url = "opc.tcp://localhost:4840"
opc_client = opc_ua_client(opc_url)
opc_status = opc_client.connect('opcua', False)
if opc_status:
opc_spec_nodeIds = ['Application.PLC_PRG.fb_opc_get.b_opc_answer',]
opc_spec_nodes = opc_client.get_nodes(opc_spec_nodeIds)
opc_client.set_value('b_opc_answer', False, ua.VariantType.Boolean)
opc_client.disconnect()
sys.stdout.flush()
print('Program Exit')
def main():
#set parameters to connect with http server(default server is online)
http_url = "http://129.187.88.30:4567/observedVariables"
http_client = hClient(http_url)
make_connection = True
#set parameters to connect with local codesys plc
opc_url = "opc.tcp://localhost:4840"
opc_client = opc_ua_client(opc_url)
#set somne variables for counter and production type
pro_type = -1
init_status = True
not_use_init = False
CRED = '\33[31m'
CGREEN = '\33[32m'
CEND = '\033[0m'
#start with a endless loop
while True:
#try to get connect with http server
make_connection = True
sys.stdout.flush()
while make_connection:
if init_status:
print("connecting to the http server ", end="")
sys.stdout.flush()
http_status, make_connection = http_client.connect()
else:
http_status = http_client.reconn(http_status)
make_connection = False
#If http connect, get product type. If not product type will be$
if http_status:
#get information from previous process or not
if init_status:
sys.stdout.flush()
print("start under" + CGREEN + " online" + CEND + " mode")
last = http_client.get_last()
#wait, till the log file changed
log = False
print("Getting type from http server...", end="\r")
sys.stdout.flush()
try:
http_inter = False
while not log:
http_status = http_client.reconn(http_status)
#print(last)
http_pro_type, log = http_client.get_recently_value(http_status, last)
if log==None:
http_status = False
break
except KeyboardInterrupt:
sys.stdout.write('\x1b[2K')
http_status = False
http_pro_type = pro_type + 1
if http_pro_type == 3:
http_pro_type = 0
print("\rPress Interrupt and change to "+CRED+"offline"+CEND+ " mode")
http_inter = True
sys.stdout.write('\x1b[2K')
if log==None:
print(CRED+"Connection break off"+CEND)
http_pro_type = pro_type + 1
if log==True:
http_client.write_logfile()
else:
if init_status:
sys.stdout.flush()
print("start under"+ CRED + " offline" + CEND + " mode")
http_pro_type = pro_type + 1
if http_pro_type == 3:
http_pro_type = 0
#try to get connect with opc server
opc_status = opc_client.connect('opcua', init_status)
if opc_status:
opc_get_nodeIds = ['Application.PLC_PRG.fb_opc_get.b_opc_request',
'Application.PLC_PRG.fb_opc_get.b_opc_answer',
'Application.PLC_PRG.fb_opc_get.i_opc_type',
'Application.PLC_PRG.fb_opc_get.b_http',]
opc_send_nodeIds = ['Application.PLC_PRG.fb_opc_send.b_opc_process',
'Application.PLC_PRG.fb_opc_send.i_opc_counter',]
opc_get_nodes = opc_client.get_nodes(opc_get_nodeIds)
opc_send_nodes = opc_client.get_nodes(opc_send_nodeIds)
pro_type = http_pro_type
while not opc_client.get_value('b_opc_request'):
print("wait opc server requests")
time.sleep(1)
if http_status:
print("Producting(" + CGREEN+"online"+CEND+") with type: " + str(http_pro_type), end=" ")
else:
print("Producting(" + CRED +"offline"+CEND+") with type: " + str(http_pro_type), end=" ")
sys.stdout.flush()
opc_client.set_value('b_http', http_status, ua.VariantType.Boolean)
opc_client.set_value('i_opc_type', pro_type, ua.VariantType.Int16)
opc_client.set_value('b_opc_answer', True, ua.VariantType.Boolean)
opc_b_opc_process = False
try:
opcua_inter = False
while not opc_b_opc_process:
opc_b_opc_process = opc_client.get_value('b_opc_process')
while opc_b_opc_process:
opc_b_opc_process = opc_client.get_value('b_opc_process')
opc_client.set_value('b_opc_answer', False, ua.VariantType.Boolean)
sys.stdout.flush()
print(CGREEN + ' ...done' + CEND)
sys.stdout.write('\x1b[2K')
except KeyboardInterrupt:
retry = None
opcua_inter = True
opc_status = False
opc_client.set_value('b_opc_answer', False, ua.VariantType.Boolean)
print(CRED + ' ... Interrupt' + CEND)
while retry!=False and retry!=True:
retry = input('Do you want to retry?[True/False]: ')
opc_client.disconnect()
report_error(http_status, http_inter, opc_status, opcua_inter)
return retry
#sys.stdout.write('\x1b[2K')
opc_counter = opc_client.get_value('i_opc_counter')
opc_client.disconnect()
init_status = False
#write plc log file
report_error(http_status, http_inter, opc_status, opcua_inter)
add_logfile(http_status, pro_type)
else:
retry = None
init_status = False
while retry != False and retry != True:
retry = input("Do you want to connect with opcua server again?[True/False]: ")
report_error(http_status, http_inter, opc_status, False)
if not retry:
print("please checkt the PLC and Ethernet and restart the program")
return retry
time.sleep(1)
def main():
#set parameters to connect with http server(default server is online)
http_url = "http://129.187.88.30:4567/observedVariables"
http_client = hClient(http_url)
make_connection = True
#set parameters to connect with local codesys plc
opc_url = "opc.tcp://localhost:4840"
opc_client = opc_ua_client(opc_url)
#set somne variables for counter and production type
http_pro_type = -1
init_status = True
not_use_init = True
CRED = '\33[31m'
CGREEN = '\33[32m'
CEND = '\033[0m'
#start with a endless loop
while True:
#try to get connect with http server
make_connection = True
sys.stdout.flush()
while make_connection:
if init_status:
print("connecting to the http server ", end="")
sys.stdout.flush()
http_status, make_connection = http_client.connect()
else:
http_status = http_client.reconn(http_status)
make_connection = False
#If http connect, get product type. If not product type will be$
if http_status:
#get information from previous process or not
if init_status:
lt_Pusher1, lt_Pusher2, len1, len2 = http_client.get_init()
sys.stdout.flush()
print("start under" + CGREEN + " online" + CEND + " mode")
if not_use_init:
lt_Pusher1 = 0
lt_Pusher2 = 0
len1 = 0
len2 = 0
not_use_init = False
#print('not use init process')
#wait, till the log file changed
log = False
tcounter = 0
print("Getting type from http server", end="\r")
sys.stdout.flush()
tt0 = time.time()
while not log:
http_status = http_client.reconn(http_status)
if time.time() - tt0 > 5:
http_status = False
http_pro_type, lt_Pusher1, lt_Pusher2, log = http_client.get_recently_value(
http_status, lt_Pusher1, lt_Pusher2)
if log == None:
http_status = False
break
sys.stdout.write('\x1b[2K')
if log == None:
print(CRED + "Connection break off" + CEND)
else:
if init_status:
sys.stdout.flush()
print("start under" + CRED + " offline" + CEND + " mode")
http_pro_type += 1
if http_pro_type == 3:
http_pro_type = 0
#try to get connect with opc server
opc_status = opc_client.connect('opcua', init_status)
if opc_status:
opc_get_nodeIds = [
'Application.PLC_PRG.fb_opc_get.b_opc_request',
'Application.PLC_PRG.fb_opc_get.b_opc_answer',
'Application.PLC_PRG.fb_opc_get.i_opc_type',
'Application.PLC_PRG.fb_opc_get.b_http',
]
opc_send_nodeIds = [
'Application.PLC_PRG.fb_opc_send.b_opc_process',
'Application.PLC_PRG.fb_opc_send.i_opc_counter',
]
opc_get_nodes = opc_client.get_nodes(opc_get_nodeIds)
opc_send_nodes = opc_client.get_nodes(opc_send_nodeIds)
while not opc_client.get_value('b_opc_request'):
print("wait opc server requests")
time.sleep(1)
if http_status:
print("Product(" + CGREEN + "online" + CEND + ") with type: " +
str(http_pro_type),
end=" ")
make_connection = True
else:
print("Product(" + CRED + "offline" + CEND + ") with type: " +
str(http_pro_type),
end=" ")
make_connection = False
sys.stdout.flush()
opc_client.set_value('b_http', http_status, ua.VariantType.Boolean)
opc_client.set_value('i_opc_type', http_pro_type,
ua.VariantType.Int16)
opc_client.set_value('b_opc_answer', True, ua.VariantType.Boolean)
opc_b_opc_process = False
while not opc_b_opc_process:
opc_b_opc_process = opc_client.get_value('b_opc_process')
while opc_b_opc_process:
opc_b_opc_process = opc_client.get_value('b_opc_process')
opc_client.set_value('b_opc_answer', False, ua.VariantType.Boolean)
sys.stdout.flush()
print(' ...done')
opc_counter = opc_client.get_value('i_opc_counter')
opc_client.disconnect()
init_status = False
if http_url == "http://129.187.88.30:4567/observedVariables":
http_url = "http://129.187.8.30:4567/observedVariables"
http_client = hClient(http_url)
else:
http_url = "http://129.187.88.30:4567/observedVariables"
http_client = hClient(http_url)
else:
retry = None
init_status = False
while retry != False and retry != True:
retry = input(
"Do you want to connect with opcua server again?[True/False]: "
)
if not retry:
print(
"please checkt the PLC and Ethernet and restart the program"
)
break
time.sleep(1)