POCloud templates
This commit is contained in:
Patrick McDonagh
296
plcpond/python-driver/Channel.py
Normal file
296
plcpond/python-driver/Channel.py
Normal file
@@ -0,0 +1,296 @@
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"""Define Meshify channel class."""
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import time
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from pycomm.ab_comm.clx import Driver as ClxDriver
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from pycomm.cip.cip_base import CommError, DataError
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TAG_DATAERROR_SLEEPTIME = 5
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def binarray(intval):
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"""Split an integer into its bits."""
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bin_string = '{0:08b}'.format(intval)
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bin_arr = [i for i in bin_string]
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bin_arr.reverse()
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return bin_arr
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def read_tag(addr, tag, plc_type="CLX"):
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"""Read a tag from the PLC."""
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direct = plc_type == "Micro800"
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addr = str(addr)
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tag = str(tag)
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c = ClxDriver()
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try:
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if c.open(addr, direct_connection=direct):
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try:
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v = c.read_tag(tag)
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return v
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except DataError as e:
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c.close()
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time.sleep(TAG_DATAERROR_SLEEPTIME)
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print("Data Error during readTag({}, {}, plc_type='{}'): {}".format(addr, tag, plc_type, e))
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else:
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raise DataError("no data")
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except CommError:
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# err = c.get_status()
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c.close()
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print("Could not connect during readTag({}, {})".format(addr, tag))
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# print err
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except AttributeError as e:
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c.close()
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print("AttributeError during readTag({}, {}): \n{}".format(addr, tag, e))
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c.close()
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def read_array(addr, tag, start, end, plc_type="CLX"):
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"""Read an array from the PLC."""
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direct = plc_type == "Micro800"
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c = ClxDriver()
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if c.open(addr, direct_connection=direct):
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arr_vals = []
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try:
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for i in range(start, end):
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tag_w_index = tag + "[{}]".format(i)
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v = c.read_tag(tag_w_index)
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# print('{} - {}'.format(tag_w_index, v))
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arr_vals.append(round(v[0], 4))
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# print(v)
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if arr_vals:
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return arr_vals
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print("No length for {}".format(addr))
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return False
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except Exception:
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print("Error during readArray({}, {}, {}, {})".format(addr, tag, start, end))
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err = c.get_status()
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c.close()
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print(err)
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return False
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c.close()
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return False
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def write_tag(addr, tag, val, plc_type="CLX"):
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"""Write a tag value to the PLC."""
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direct = plc_type == "Micro800"
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clx = ClxDriver()
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if clx.open(addr, direct_connection=direct):
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try:
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prevval = clx.read_tag(tag)
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if direct:
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time.sleep(1)
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write_result = clx.write_tag(tag, val, prevval[1])
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return write_result
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except Exception:
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print("Error during writeTag({}, {}, {})".format(addr, tag, val))
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err = clx.get_status()
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clx.close()
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print(err)
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return False
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clx.close()
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return False
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class Channel(object):
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"""Holds the configuration for a Meshify channel."""
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def __init__(self, mesh_name, data_type, chg_threshold, guarantee_sec, map_=False, write_enabled=False):
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"""Initialize the channel."""
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self.mesh_name = mesh_name
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self.data_type = data_type
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self.last_value = None
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self.value = None
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self.last_send_time = 0
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self.chg_threshold = chg_threshold
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self.guarantee_sec = guarantee_sec
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self.map_ = map_
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self.write_enabled = write_enabled
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def __str__(self):
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"""Create a string for the channel."""
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return "{}\nvalue: {}, last_send_time: {}".format(self.mesh_name, self.value, self.last_send_time)
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def check(self, new_value, force_send=False):
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"""Check to see if the new_value needs to be stored."""
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send_needed = False
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send_reason = ""
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if self.data_type == 'BOOL' or self.data_type == 'STRING':
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if self.last_send_time == 0:
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send_needed = True
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send_reason = "no send time"
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elif self.value is None:
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send_needed = True
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send_reason = "no value"
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elif not (self.value == new_value):
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if self.map_:
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if not self.value == self.map_[new_value]:
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send_needed = True
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send_reason = "value change"
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else:
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send_needed = True
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send_reason = "value change"
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elif (time.time() - self.last_send_time) > self.guarantee_sec:
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send_needed = True
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send_reason = "guarantee sec"
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elif force_send:
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send_needed = True
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send_reason = "forced"
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else:
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if self.last_send_time == 0:
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send_needed = True
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send_reason = "no send time"
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elif self.value is None:
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send_needed = True
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send_reason = "no value"
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elif abs(self.value - new_value) > self.chg_threshold:
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send_needed = True
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send_reason = "change threshold"
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elif (time.time() - self.last_send_time) > self.guarantee_sec:
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send_needed = True
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send_reason = "guarantee sec"
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elif force_send:
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send_needed = True
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send_reason = "forced"
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if send_needed:
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self.last_value = self.value
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if self.map_:
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try:
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self.value = self.map_[new_value]
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except KeyError:
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print("Cannot find a map value for {} in {} for {}".format(new_value, self.map_, self.mesh_name))
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self.value = new_value
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else:
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self.value = new_value
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self.last_send_time = time.time()
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print("Sending {} for {} - {}".format(self.value, self.mesh_name, send_reason))
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return send_needed
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def read(self):
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"""Read the value."""
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pass
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def identity(sent):
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"""Return exactly what was sent to it."""
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return sent
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class ModbusChannel(Channel):
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"""Modbus channel object."""
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def __init__(self, mesh_name, register_number, data_type, chg_threshold, guarantee_sec, channel_size=1, map_=False, write_enabled=False, transformFn=identity):
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"""Initialize the channel."""
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super(ModbusChannel, self).__init__(mesh_name, data_type, chg_threshold, guarantee_sec, map_, write_enabled)
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self.mesh_name = mesh_name
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self.register_number = register_number
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self.channel_size = channel_size
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self.data_type = data_type
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self.last_value = None
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self.value = None
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self.last_send_time = 0
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self.chg_threshold = chg_threshold
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self.guarantee_sec = guarantee_sec
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self.map_ = map_
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self.write_enabled = write_enabled
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self.transformFn = transformFn
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def read(self, mbsvalue):
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"""Return the transformed read value."""
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return self.transformFn(mbsvalue)
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class PLCChannel(Channel):
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"""PLC Channel Object."""
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def __init__(self, ip, mesh_name, plc_tag, data_type, chg_threshold, guarantee_sec, map_=False, write_enabled=False, plc_type='CLX'):
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"""Initialize the channel."""
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super(PLCChannel, self).__init__(mesh_name, data_type, chg_threshold, guarantee_sec, map_, write_enabled)
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self.plc_ip = ip
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self.mesh_name = mesh_name
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self.plc_tag = plc_tag
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self.data_type = data_type
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self.last_value = None
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self.value = None
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self.last_send_time = 0
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self.chg_threshold = chg_threshold
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self.guarantee_sec = guarantee_sec
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self.map_ = map_
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self.write_enabled = write_enabled
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self.plc_type = plc_type
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def read(self):
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"""Read the value."""
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plc_value = None
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if self.plc_tag and self.plc_ip:
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read_value = read_tag(self.plc_ip, self.plc_tag, plc_type=self.plc_type)
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if read_value:
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plc_value = read_value[0]
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return plc_value
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class BoolArrayChannels(Channel):
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"""Hold the configuration for a set of boolean array channels."""
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def __init__(self, ip, mesh_name, plc_tag, data_type, chg_threshold, guarantee_sec, map_=False, write_enabled=False):
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"""Initialize the channel."""
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self.plc_ip = ip
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self.mesh_name = mesh_name
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self.plc_tag = plc_tag
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self.data_type = data_type
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self.last_value = None
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self.value = None
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self.last_send_time = 0
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self.chg_threshold = chg_threshold
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self.guarantee_sec = guarantee_sec
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self.map_ = map_
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self.write_enabled = write_enabled
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def compare_values(self, new_val_dict):
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"""Compare new values to old values to see if the values need storing."""
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send = False
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for idx in new_val_dict:
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try:
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if new_val_dict[idx] != self.last_value[idx]:
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send = True
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except KeyError:
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print("Key Error in self.compare_values for index {}".format(idx))
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send = True
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return send
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def read(self, force_send=False):
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"""Read the value and check to see if needs to be stored."""
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send_needed = False
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send_reason = ""
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if self.plc_tag:
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v = read_tag(self.plc_ip, self.plc_tag)
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if v:
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bool_arr = binarray(v[0])
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new_val = {}
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for idx in self.map_:
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try:
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new_val[self.map_[idx]] = bool_arr[idx]
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except KeyError:
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print("Not able to get value for index {}".format(idx))
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if self.last_send_time == 0:
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send_needed = True
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send_reason = "no send time"
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elif self.value is None:
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send_needed = True
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send_reason = "no value"
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elif self.compare_values(new_val):
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send_needed = True
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send_reason = "value change"
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elif (time.time() - self.last_send_time) > self.guarantee_sec:
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send_needed = True
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send_reason = "guarantee sec"
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elif force_send:
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send_needed = True
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send_reason = "forced"
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if send_needed:
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self.value = new_val
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self.last_value = self.value
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self.last_send_time = time.time()
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print("Sending {} for {} - {}".format(self.value, self.mesh_name, send_reason))
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return send_needed
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BIN
plcpond/python-driver/Channel.pyc
Normal file
BIN
plcpond/python-driver/Channel.pyc
Normal file
Binary file not shown.
28
plcpond/python-driver/channels_plcpond.csv
Normal file
28
plcpond/python-driver/channels_plcpond.csv
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@@ -0,0 +1,28 @@
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id,name,deviceTypeId,fromMe,io,subTitle,helpExplanation,channelType,dataType,defaultValue,regex,regexErrMsg,units,min,max,change,guaranteedReportPeriod,minReportTime
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13723,log,463,FALSE,readwrite,Log,Device Log,device,string,Created,,,,,,,,
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,pond1height,463,FALSE,readonly,Pond 1 Height,in Ft,device,float,-99,,,,,,,,
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,pond1volume,463,FALSE,readonly,Pond 1 Volume,in BBL,device,float,-99,,,,,,,,
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,pond2height,463,FALSE,readonly,Pond 2 Height,in Ft,device,float,-99,,,,,,,,
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,pond2volume,463,FALSE,readonly,Pond 2 Volume,in BBL,device,float,-99,,,,,,,,
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,pond3height,463,FALSE,readonly,Pond 3 Height,in Ft,device,float,-99,,,,,,,,
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,pond3volume,463,FALSE,readonly,Pond 3 Volume,in BBL,device,float,-99,,,,,,,,
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,pond4height,463,FALSE,readonly,Pond 4 Height,in Ft,device,float,-99,,,,,,,,
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,pond4volume,463,FALSE,readonly,Pond 4 Volume,in BBL,device,float,-99,,,,,,,,
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,cfgnumberofponds,463,FALSE,readwrite,Number of Ponds Configured,4-Jan,device,integer,0,,,,,,,,
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,public_ip_address,463,FALSE,readonly,Public IP Address,network device address,device,string,,,,,,,,,
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,pondvolumetotal,463,FALSE,readonly,Total Pond Volume,in BBL,device,float,-99,,,,,,,,
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,pond1calibration,463,FALSE,readonly,Pond 1 Calibration Table,JSON list of objects with height and volume props,device,string,[],,,,,,,,
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,pond2calibration,463,FALSE,readonly,Pond 2 Calibration Table,JSON list of objects with height and volume props,device,string,[],,,,,,,,
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,pond3calibration,463,FALSE,readonly,Pond 3 Calibration Table,JSON list of objects with height and volume props,device,string,[],,,,,,,,
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,pond4calibration,463,FALSE,readonly,Pond 4 Calibration Table,JSON list of objects with height and volume props,device,string,[],,,,,,,,
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,addcalibrationpoint,463,FALSE,readwrite,Add Calibration Point Command,JSON Object with pond and height and volume props,device,string,,,,,,,,,
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,deletecalibrationpoint,463,FALSE,readwrite,Delete Calibration Point Command,JSON Object with pond and point properties,device,string,,,,,,,,,
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,sync,463,FALSE,readwrite,Sync data,Synchronize command,device,string,,,,,,,,,
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,pond1highalarmsetpoint,463,FALSE,readwrite,Pond 1 High Alarm Setpoint,in Ft,user input,float,50,,,,,,,,
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,pond1lowalarmsetpoint,463,FALSE,readwrite,Pond 1 Low Alarm Setpoint,in Ft,user input,float,0,,,,,,,,
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,pond2highalarmsetpoint,463,FALSE,readwrite,Pond 2 High Alarm Setpoint,in Ft,user input,float,50,,,,,,,,
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,pond2lowalarmsetpoint,463,FALSE,readwrite,Pond 2 Low Alarm Setpoint,in Ft,user input,float,0,,,,,,,,
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,pond3highalarmsetpoint,463,FALSE,readwrite,Pond 3 High Alarm Setpoint,in Ft,user input,float,50,,,,,,,,
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,pond3lowalarmsetpoint,463,FALSE,readwrite,Pond 3 Low Alarm Setpoint,in Ft,user input,float,0,,,,,,,,
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,pond4highalarmsetpoint,463,FALSE,readwrite,Pond 4 High Alarm Setpoint,in Ft,user input,float,50,,,,,,,,
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,pond4lowalarmsetpoint,463,FALSE,readwrite,Pond 4 Low Alarm Setpoint,in Ft,user input,float,0,,,,,,,,
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|
11
plcpond/python-driver/config.txt
Normal file
11
plcpond/python-driver/config.txt
Normal file
@@ -0,0 +1,11 @@
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{
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"driverFileName": "plcpond.py",
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"deviceName": "plcpond",
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"driverId": "0220",
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"releaseVersion": "1",
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"files": {
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"file1": "plcpond.py",
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"file2": "utilities.py",
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"file3": "Channel.py"
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}
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}
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2
plcpond/python-driver/device_base.py
Normal file
2
plcpond/python-driver/device_base.py
Normal file
@@ -0,0 +1,2 @@
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class deviceBase(object):
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pass
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11
plcpond/python-driver/driverConfig.json
Normal file
11
plcpond/python-driver/driverConfig.json
Normal file
@@ -0,0 +1,11 @@
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{
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||||
"name": "plcpond",
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"driverFilename": "plcpond.py",
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"driverId": "0000",
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||||
"additionalDriverFiles": [
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"utilities.py",
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||||
"Channel.py"
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||||
],
|
||||
"version": 1,
|
||||
"s3BucketName": "plcpond"
|
||||
}
|
||||
247
plcpond/python-driver/plcpond.py
Normal file
247
plcpond/python-driver/plcpond.py
Normal file
@@ -0,0 +1,247 @@
|
||||
"""Driver for plcpond"""
|
||||
|
||||
import threading
|
||||
import sys
|
||||
import json
|
||||
import time
|
||||
import logging
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||||
from random import randint
|
||||
from device_base import deviceBase
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from Channel import PLCChannel, read_tag, write_tag, TAG_DATAERROR_SLEEPTIME
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||||
from utilities import get_public_ip_address
|
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|
||||
|
||||
_ = None
|
||||
|
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# LOGGING SETUP
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from logging.handlers import RotatingFileHandler
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|
||||
log_formatter = logging.Formatter('%(asctime)s %(levelname)s %(funcName)s(%(lineno)d) %(message)s')
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logFile = './plcpond.log'
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my_handler = RotatingFileHandler(logFile, mode='a', maxBytes=500*1024, backupCount=2, encoding=None, delay=0)
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my_handler.setFormatter(log_formatter)
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my_handler.setLevel(logging.INFO)
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logger = logging.getLogger('plcpond')
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logger.setLevel(logging.INFO)
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logger.addHandler(my_handler)
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console_out = logging.StreamHandler(sys.stdout)
|
||||
console_out.setFormatter(log_formatter)
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logger.addHandler(console_out)
|
||||
|
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logger.info("plcpond startup")
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# GLOBAL VARIABLES
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WATCHDOG_SEND_PERIOD = 3600 # Seconds, the longest amount of time before sending the watchdog status
|
||||
PLC_IP_ADDRESS = "192.168.1.12"
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CHANNELS = [
|
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PLCChannel(PLC_IP_ADDRESS, "cfgnumberofponds", "cfgNumberOfPonds", "REAL", 0.5, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
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PLCChannel(PLC_IP_ADDRESS, "pond1height", "pond1Height", "REAL", 0.5, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
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PLCChannel(PLC_IP_ADDRESS, "pond2height", "pond2Height", "REAL", 0.5, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
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PLCChannel(PLC_IP_ADDRESS, "pond3height", "pond3Height", "REAL", 0.5, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
PLCChannel(PLC_IP_ADDRESS, "pond4height", "pond4Height", "REAL", 0.5, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
|
||||
PLCChannel(PLC_IP_ADDRESS, "pond1volume", "pond1Volume", "REAL", 500.0, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
PLCChannel(PLC_IP_ADDRESS, "pond2volume", "pond2Volume", "REAL", 500.0, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
PLCChannel(PLC_IP_ADDRESS, "pond3volume", "pond3Volume", "REAL", 500.0, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
PLCChannel(PLC_IP_ADDRESS, "pond4volume", "pond4Volume", "REAL", 500.0, 600, map_=False, write_enabled=False, plc_type='Micro800'),
|
||||
|
||||
PLCChannel(PLC_IP_ADDRESS, "pondvolumetotal", "pondVolumeTotal", "REAL", 500.0, 600, map_=False, write_enabled=False, plc_type='Micro800')
|
||||
]
|
||||
|
||||
CALIBRATION_TABLES = [[],[], [], [], []] # position 0 is a dummy table
|
||||
|
||||
|
||||
|
||||
|
||||
class start(threading.Thread, deviceBase):
|
||||
"""Start class required by Meshify."""
|
||||
|
||||
def __init__(self, name=None, number=None, mac=None, Q=None, mcu=None, companyId=None, offset=None, mqtt=None, Nodes=None):
|
||||
"""Initialize the driver."""
|
||||
threading.Thread.__init__(self)
|
||||
deviceBase.__init__(self, name=name, number=number, mac=mac, Q=Q, mcu=mcu, companyId=companyId, offset=offset, mqtt=mqtt, Nodes=Nodes)
|
||||
|
||||
self.daemon = True
|
||||
self.version = "1"
|
||||
self.finished = threading.Event()
|
||||
self.force_send = False
|
||||
threading.Thread.start(self)
|
||||
|
||||
# this is a required function for all drivers, its goal is to upload some piece of data
|
||||
# about your device so it can be seen on the web
|
||||
def register(self):
|
||||
"""Register the driver."""
|
||||
# self.sendtodb("log", "BOOM! Booted.", 0)
|
||||
pass
|
||||
|
||||
def run(self):
|
||||
"""Actually run the driver."""
|
||||
wait_sec = 15
|
||||
for i in range(0, wait_sec):
|
||||
print("plcpond driver will start in {} seconds".format(wait_sec - i))
|
||||
time.sleep(1)
|
||||
logger.info("BOOM! Starting plcpond driver...")
|
||||
|
||||
public_ip_address = get_public_ip_address()
|
||||
self.sendtodbDev(1, 'public_ip_address', public_ip_address, 0, 'plcpond')
|
||||
watchdog = self.plcpond_watchdog()
|
||||
self.sendtodbDev(1, 'watchdog', watchdog, 0, 'plcpond')
|
||||
watchdog_send_timestamp = time.time()
|
||||
|
||||
self.nodes["plcpond_0199"] = self
|
||||
|
||||
send_loops = 0
|
||||
watchdog_loops = 0
|
||||
watchdog_check_after = 5000
|
||||
while True:
|
||||
if self.force_send:
|
||||
logger.warning("FORCE SEND: TRUE")
|
||||
|
||||
for c in CHANNELS:
|
||||
v = c.read()
|
||||
if v is not None: # read returns None if it fails
|
||||
if c.check(v, self.force_send):
|
||||
self.sendtodbDev(1, c.mesh_name, c.value, 0, 'plcpond')
|
||||
time.sleep(TAG_DATAERROR_SLEEPTIME) # sleep to allow Micro800 to handle ENET requests
|
||||
|
||||
for pond_index in range(1, 5):
|
||||
self.read_pond_calibration(pond_index)
|
||||
|
||||
# print("plcpond driver still alive...")
|
||||
if self.force_send:
|
||||
if send_loops > 2:
|
||||
logger.warning("Turning off force_send")
|
||||
self.force_send = False
|
||||
send_loops = 0
|
||||
else:
|
||||
send_loops += 1
|
||||
|
||||
watchdog_loops += 1
|
||||
if watchdog_loops >= watchdog_check_after:
|
||||
test_watchdog = self.plcpond_watchdog()
|
||||
if not test_watchdog == watchdog or (time.time() - watchdog_send_timestamp) > WATCHDOG_SEND_PERIOD:
|
||||
self.sendtodbDev(1, 'watchdog', test_watchdog, 0, 'plcpond')
|
||||
watchdog = test_watchdog
|
||||
|
||||
test_public_ip = get_public_ip_address()
|
||||
if not test_public_ip == public_ip_address:
|
||||
self.sendtodbDev(1, 'public_ip_address', test_public_ip, 0, 'plcpond')
|
||||
public_ip_address = test_public_ip
|
||||
watchdog_loops = 0
|
||||
|
||||
|
||||
def read_pond_calibration(self, pond_number):
|
||||
"""Read all calibration values for a specific pond."""
|
||||
last_read_height = -1.0
|
||||
cal_values = []
|
||||
cal_index = 1
|
||||
while last_read_height != 0 and cal_index <=10:
|
||||
cal_tag_height = "pond{}CalibrationHeight[{}]".format(pond_number, cal_index)
|
||||
cal_tag_volume = "pond{}CalibrationVolume[{}]".format(pond_number, cal_index)
|
||||
read_height = read_tag(PLC_IP_ADDRESS, cal_tag_height, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
read_volume = read_tag(PLC_IP_ADDRESS, cal_tag_volume, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
if read_height and read_volume:
|
||||
if read_height[0] > 0.0:
|
||||
cal_values.append({"height": read_height[0], "volume": read_volume[0]})
|
||||
last_read_height = read_height[0]
|
||||
cal_index += 1
|
||||
|
||||
if cal_values != CALIBRATION_TABLES[pond_number] or self.force_send:
|
||||
calibration_channel = "pond{}calibration".format(pond_number)
|
||||
calibration_string = json.dumps(cal_values).replace('"', "'")
|
||||
self.sendtodbDev(1, calibration_channel, calibration_string, 0, 'plcpond')
|
||||
CALIBRATION_TABLES[pond_number] = cal_values
|
||||
|
||||
def plcpond_watchdog(self):
|
||||
"""Write a random integer to the PLC and then 1 seconds later check that it has been decremented by 1."""
|
||||
randval = randint(0, 32767)
|
||||
write_tag(str(PLC_IP_ADDRESS), 'watchdog_INT', randval, plc_type="Micro800")
|
||||
time.sleep(1)
|
||||
watchdog_val = read_tag(str(PLC_IP_ADDRESS), 'watchdog_INT', plc_type="Micro800")
|
||||
try:
|
||||
return (randval - 1) == watchdog_val[0]
|
||||
except (KeyError, TypeError):
|
||||
return False
|
||||
|
||||
def plcpond_sync(self, name, value):
|
||||
"""Sync all data from the driver."""
|
||||
self.force_send = True
|
||||
# self.sendtodb("log", "synced", 0)
|
||||
return True
|
||||
|
||||
def plcpond_deletecalibrationpoint(self, name, value):
|
||||
"""Delete a calibration point from a calibration table"""
|
||||
# {"pond": int, "point": int}
|
||||
value = value.replace("'", '"')
|
||||
parsed = json.loads(value)
|
||||
try:
|
||||
pond_number = int(parsed['pond'])
|
||||
point_number = int(parsed['point'])
|
||||
write_pond = write_tag(PLC_IP_ADDRESS, "inpPondNumber", pond_number, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
write_point = write_tag(PLC_IP_ADDRESS, "inpDeletePointIndex", point_number, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
if write_pond and write_point:
|
||||
write_cmd = write_tag(PLC_IP_ADDRESS, "cmdDeleteCalibrationPoint", 1, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
if write_cmd:
|
||||
read_val = read_tag(PLC_IP_ADDRESS, "deleteSuccess", plc_type="Micro800")
|
||||
if read_val[0] == 1:
|
||||
self.read_pond_calibration(pond_number)
|
||||
return True
|
||||
return "Wrote everything successfully, but delete didn't succeed (Check pond and point values)."
|
||||
return "Didn't write delete command correctly."
|
||||
return "Didn't write pond or point correctly."
|
||||
except KeyError as e:
|
||||
return "Couldn't parse input value: {} -- {}".format(value, e)
|
||||
|
||||
def plcpond_cfgnumberofponds(self, name, value):
|
||||
"""Write the number of ponds to the plc."""
|
||||
value = int(value)
|
||||
return write_tag(PLC_IP_ADDRESS, "cfgNumberOfPonds", value, plc_type="Micro800")
|
||||
|
||||
def plcpond_addcalibrationpoint(self, name, value):
|
||||
"""Add a calibration point to the calibration table"""
|
||||
# value = {"pond": int, "height": float, "volume": float}
|
||||
value = value.replace("'", '"')
|
||||
parsed = json.loads(value)
|
||||
try:
|
||||
# parse json values, throw an error if one is missing
|
||||
pond_number = int(parsed['pond'])
|
||||
height = float(parsed['height'])
|
||||
volume = float(parsed['volume'])
|
||||
# write values to the tags
|
||||
write_pond = write_tag(PLC_IP_ADDRESS, "inpPondNumber", pond_number, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
write_height = write_tag(PLC_IP_ADDRESS, "inpPondHeight", height, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
write_volume= write_tag(PLC_IP_ADDRESS, "inpPondVolume", volume, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
if write_pond and write_height and write_volume:
|
||||
write_cmd = write_tag(PLC_IP_ADDRESS, "cmdAddCalibrationPoint", 1, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
if write_cmd:
|
||||
read_val = read_tag(PLC_IP_ADDRESS, "addSuccess", plc_type="Micro800")
|
||||
if read_val[0] == 1:
|
||||
self.read_pond_calibration(pond_number)
|
||||
return True
|
||||
return "Wrote everything successfully, but delete didn't succeed (Check pond and point values)."
|
||||
return "Didn't write delete command correctly."
|
||||
return "Didn't write pond or point correctly."
|
||||
except KeyError as e:
|
||||
return "Couldn't parse input value: {} -- {}".format(value, e)
|
||||
|
||||
def plcpond_writeplctag(self, name, value):
|
||||
"""Write a value to the PLC."""
|
||||
new_val = json.loads(str(value).replace("'", '"'))
|
||||
tag_n = str(new_val['tag']) # "cmd_Start"
|
||||
val_n = new_val['val']
|
||||
w = write_tag(str(PLC_IP_ADDRESS), tag_n, val_n)
|
||||
print("Result of plcpond_writeplctag(self, {}, {}) = {}".format(name, value, w))
|
||||
if w is None:
|
||||
w = "Error writing to PLC..."
|
||||
return w
|
||||
26
plcpond/python-driver/test.py
Normal file
26
plcpond/python-driver/test.py
Normal file
@@ -0,0 +1,26 @@
|
||||
import json
|
||||
import time
|
||||
from Channel import read_tag, write_tag
|
||||
|
||||
PLC_IP_ADDRESS = "192.168.1.12"
|
||||
|
||||
def read_pond_calibration(pond_number):
|
||||
"""Read all calibration values for a specific pond."""
|
||||
last_read_height = -1.0
|
||||
cal_values = []
|
||||
cal_index = 1
|
||||
while last_read_height != 0 and cal_index <=10:
|
||||
cal_tag_height = "pond{}CalibrationHeight[{}]".format(pond_number, cal_index)
|
||||
cal_tag_volume = "pond{}CalibrationVolume[{}]".format(pond_number, cal_index)
|
||||
print(cal_tag_height, cal_tag_volume)
|
||||
read_height = read_tag(PLC_IP_ADDRESS, cal_tag_height, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
read_volume = read_tag(PLC_IP_ADDRESS, cal_tag_volume, plc_type="Micro800")
|
||||
time.sleep(2)
|
||||
print(read_height, read_volume)
|
||||
if read_height and read_volume:
|
||||
if read_height[0] > 0.0:
|
||||
cal_values.append({"height": read_height[0], "volume": read_volume[0]})
|
||||
last_read_height = read_height[0]
|
||||
cal_index += 1
|
||||
return cal_values
|
||||
51
plcpond/python-driver/utilities.py
Normal file
51
plcpond/python-driver/utilities.py
Normal file
@@ -0,0 +1,51 @@
|
||||
"""Utility functions for the driver."""
|
||||
import socket
|
||||
import struct
|
||||
|
||||
|
||||
def get_public_ip_address():
|
||||
"""Find the public IP Address of the host device."""
|
||||
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
||||
s.connect(("8.8.8.8", 80))
|
||||
ip = s.getsockname()[0]
|
||||
s.close()
|
||||
return ip
|
||||
|
||||
|
||||
def int_to_float16(int_to_convert):
|
||||
"""Convert integer into float16 representation."""
|
||||
bin_rep = ('0' * 16 + '{0:b}'.format(int_to_convert))[-16:]
|
||||
sign = 1.0
|
||||
if int(bin_rep[0]) == 1:
|
||||
sign = -1.0
|
||||
exponent = float(int(bin_rep[1:6], 2))
|
||||
fraction = float(int(bin_rep[6:17], 2))
|
||||
|
||||
if exponent == float(0b00000):
|
||||
return sign * 2 ** -14 * fraction / (2.0 ** 10.0)
|
||||
elif exponent == float(0b11111):
|
||||
if fraction == 0:
|
||||
return sign * float("inf")
|
||||
else:
|
||||
return float("NaN")
|
||||
else:
|
||||
frac_part = 1.0 + fraction / (2.0 ** 10.0)
|
||||
return sign * (2 ** (exponent - 15)) * frac_part
|
||||
|
||||
|
||||
def ints_to_float(int1, int2):
|
||||
"""Convert 2 registers into a floating point number."""
|
||||
mypack = struct.pack('>HH', int1, int2)
|
||||
f = struct.unpack('>f', mypack)
|
||||
print("[{}, {}] >> {}".format(int1, int2, f[0]))
|
||||
return f[0]
|
||||
|
||||
|
||||
def degf_to_degc(temp_f):
|
||||
"""Convert deg F to deg C."""
|
||||
return (temp_f - 32.0) * (5.0/9.0)
|
||||
|
||||
|
||||
def degc_to_degf(temp_c):
|
||||
"""Convert deg C to deg F."""
|
||||
return temp_c * 1.8 + 32.0
|
||||
Reference in New Issue
Block a user